# Disaster Management — all public teaching content Exact source JSON: https://deep-learning-study-room.vercel.app/exports/dm.json --- ## M2 · What to study and how to write it Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/start--plan/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/start/plan M2 · the supplied M2 PPT; 10 marks, confirmed choice pattern Read the chapters in order. Each lesson explains the concept first, then gives a complete question and a model answer. Answers are already open beneath their questions. The **TEE** button adds the complete five-unit syllabus and the matching previous papers. | Question | Marks | Choice | | --- | --- | --- | | Q1(a) | 2 | Compulsory | | Q1(b) | 2 | Compulsory | | Q2, Q3, Q4 | 3 each | Attempt any two | **Total attempted: 2 + 2 + 3 + 3 = 10 marks.** The printed question total is 13 because one 3-mark option is left unanswered. This M2 format is confirmed by you. It does not define the TEE format. ## M2 reading order 1. Learn hazard, disaster, vulnerability and the management cycle. These are the vocabulary needed to understand later answers. 2. Study principles and ethics, Indian institutions, and early warning systems. 3. Study earthquakes: causes → waves → magnitude/intensity → effects → management. 4. Study floods: types → urban flooding → engineering measures → zoning and response. 5. Study cyclones: formation → hazards → warnings → protection. 6. Read the short-answer bank, then the three complete M2 practice papers. Use last-day revision after the lessons. ## Writing a 2-mark or 3-mark answer For a definition, start with one precise sentence and add the requested example or distinction. For “explain”, write numbered points with a reason: *what the measure does and how it reduces harm*. For a 3-mark management question, three explained measures are usually stronger than six bare names. Marks do not impose a universal word count; follow the command in the actual question. ### Practice question. Explain three measures to reduce urban flood risk. [3 practice marks] #### Answer 1. **Maintain drainage:** remove silt and waste before the monsoon so drains can convey runoff. 2. **Protect natural storage:** conserve wetlands and provide detention areas to hold water and reduce the peak reaching drains. 3. **Control land use:** restrict development on floodplains and keep hospitals and evacuation routes outside mapped high-risk areas. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) The practice questions are written for preparation; they are not predictions of the next paper. The reading sequence follows the supplied M2 PPT. No claim of an officially narrowed M2 cutoff is made. Practice marks are an authored answer-length target. Only the Solved PYQs show actual printed paper marks. M2 question types have not been confirmed beyond the choice pattern; a lecture formula is not proof that a numerical will be asked. --- ## M2 · Hazard is the threat; disaster is the serious disruption Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/basics--hazard/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/basics/hazard Foundations · needed in M2 and TEE · syllabus unit 1 **Definition.** A hazard is a potentially harmful process, phenomenon or human activity. A disaster is a serious disruption of a community caused when hazardous events interact with exposure, vulnerability and limited capacity. **Simple meaning.** Baarish khatra ho sakti hai; usse logon ki zindagi aur services seriously disrupt hona disaster hai. ## One example, from cause to consequence Heavy rain is a hazard. People living beside an overflowing drain are exposed. Weak houses and blocked drainage increase vulnerability. Rescue boats, warnings and safe shelters increase capacity. If flooding seriously disrupts lives, services and livelihoods, the event becomes a disaster. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. A hazard becomes a disaster through its interaction with exposed, vulnerable people and assets. Capacity changes the outcome. | Term | Meaning | Flood example | | --- | --- | --- | | Hazard | What can cause harm? | Heavy rainfall / high river flow | | Exposure | Who or what is in the affected place? | Homes beside the river | | Vulnerability | Why can those exposed suffer damage? | Weak houses; limited mobility; poor drainage | | Capacity | What strengths help manage the threat? | Warnings, shelters, trained rescue teams | | Disaster risk | Potential losses before the event occurs | Possible deaths, damage and disruption | | Disaster | Serious disruption when the event occurs | Homes inundated and essential services overwhelmed | ### Practice question. Differentiate between a hazard and a disaster with an example. [2 practice marks] #### Answer A **hazard** has the potential to cause harm, whereas a **disaster** is the serious disruption produced when that hazard affects exposed and vulnerable people or assets. A river rising is a flood hazard; widespread inundation that disrupts homes, hospitals and livelihoods is a flood disaster. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Hazard = threat; disaster = serious disruption. --- ## M2 · Vulnerability, capacity and resilience Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/basics--vulnerability/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/basics/vulnerability Foundations · needed in M2 and TEE · syllabus unit 1 **Definition.** Vulnerability is the susceptibility of people or assets to harm. Capacity is the available strength and resources to manage risk. Resilience is the ability to withstand, adapt to and recover from disruption while maintaining or restoring essential functions. **Simple meaning.** Same earthquake, do buildings: strong building ka loss kam ho sakta hai. ## Four dimensions of vulnerability | Dimension | Why it increases harm | Risk reduction | | --- | --- | --- | | Physical | Weak construction may collapse in shaking. | Safe design and retrofitting | | Social | Inaccessible warnings exclude people with hearing or visual disabilities. | Accessible messages and assisted evacuation | | Economic | A household with one damaged livelihood has little income for recovery. | Savings, social protection and livelihood diversity | | Environmental | Wetland loss removes flood storage. | Wetland protection and catchment restoration | Being exposed is different from being vulnerable. Two buildings in the same seismic area are exposed to similar shaking, but the poorly built one may suffer greater damage. A disability does not itself determine disaster loss: inaccessible transport, buildings and warning systems often create the disabling barrier. ## Capacity operates at three levels 1. **Individual:** knowledge, first-aid training and an evacuation plan. 2. **Organisational:** staff, equipment, procedures and coordination in a hospital or local authority. 3. **Enabling environment:** laws, budgets, institutions and inclusive participation. ### Practice question. Explain vulnerability and capacity with one example each. [2 practice marks] #### Answer **Vulnerability** is a condition that increases susceptibility to a hazard; an unreinforced building is vulnerable to earthquake damage. **Capacity** is the combination of skills and resources available to manage risk; trained rescue teams and safe shelters increase a community’s capacity. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Exposure = location; vulnerability = weakness; capacity = available strength. --- ## M2 · The disaster management cycle: six stages explained Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/basics--cycle/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/basics/cycle Foundations · needed in M2 and TEE · syllabus unit 1 **Definition.** Disaster management is the organised process of preventing or reducing risk, preparing for emergencies, responding to impacts and supporting recovery. **Simple meaning.** Pehle risk ghatao, phir ready raho; event par bachao, baad mein safer tarike se banao. Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle The cycle repeats: lessons from recovery must improve prevention and preparedness. | Stage | Meaning | One clear example | | --- | --- | --- | | Prevention | Avoid a risk where possible. | Keep a new school out of an active floodway. | | Mitigation | Reduce the severity of losses. | Strengthen an existing school against shaking. | | Preparedness | Build readiness to act. | Prepare evacuation routes and conduct drills. | | Response | Take urgent life-saving action. | Rescue trapped people and provide emergency shelter. | | Recovery | Restore services and livelihoods. | Restore water, power and access to education. | | Rehabilitation / reconstruction | Restore functioning and rebuild damaged systems more safely. | Rebuild homes to appropriate safety standards. | ## Why some diagrams show four stages The four-stage cycle uses **mitigation → preparedness → response → recovery**. Prevention is treated with risk reduction; rehabilitation and reconstruction are included in recovery. The six-stage version separates them for explanation. These activities overlap; response can begin before impact, for example by evacuating after a cyclone warning. ## Build Back Better Recovery should reduce future risk. Rebuilding the same weak house in the same floodway may restore yesterday’s vulnerability. Safer siting, stronger design, accessible services and restored livelihoods improve resilience. ### Practice question. Explain the disaster management cycle with examples. [3 practice marks] #### Answer The cycle is a continuous sequence of risk reduction, readiness, emergency action and recovery. 1. **Prevention and mitigation:** avoid unsafe development and strengthen vulnerable buildings. 2. **Preparedness:** arrange warnings, evacuation routes, drills and emergency supplies. 3. **Response:** rescue people, provide urgent care and distribute essentials. 4. **Recovery:** restore services and livelihoods; rehabilitation and reconstruction should build back better. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Prevent → reduce → prepare → respond → restore → rebuild safer. --- ## M2 · Principles of effective disaster management Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/principles--principles/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/principles/principles M2 PPT pp 1–14 · unit 3 **Definition.** A principle is a basic rule that guides decisions across different disasters. Effective management is comprehensive, proactive, coordinated, inclusive and risk-based. **Simple meaning.** Sirf rescue team bhejna DM nahi; pehle se plan, clear roles aur sabke liye access bhi chahiye. | Principle | Meaning | Application | | --- | --- | --- | | Comprehensive | Address all hazards and all phases. | A coastal plan considers wind, flooding, health and recovery. | | Proactive / prevention-oriented | Reduce risk before an event. | Inspect vulnerable structures before the monsoon. | | Risk-based | Give priority according to likelihood and consequences. | Protect hospitals and high-risk settlements first. | | Coordinated | Assign responsibilities and share information. | Police, health, municipal and rescue agencies use a joint plan. | | Participatory and inclusive | Involve affected groups in decisions. | Design evacuation support with people with disabilities. | | Sustainable | Avoid creating future social or environmental harm. | Rebuild outside unstable slopes and preserve drainage. | | Flexible and evidence-informed | Adapt as conditions and verified information change. | Change a rescue route when a bridge becomes unsafe. | ### Practice question. State and explain three basic principles of disaster management. [3 practice marks] #### Answer 1. **Comprehensive approach:** plan for multiple hazards and cover mitigation, preparedness, response and recovery. 2. **Coordination:** clearly allocate agency responsibilities and share reliable information to avoid delays or duplicated work. 3. **Inclusion:** involve communities and provide accessible warnings, shelters and assistance according to need. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. **Yaad rakho:** All hazards, all phases, all people. --- ## M2 · The ten general ethical principles in the lecture Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/principles--general-ethics/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/principles/general-ethics M2 PPT pp 1–14 · unit 3 **Definition.** General ethical principles guide fair decisions before, during and after disasters. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. ## Two distinctions that often cause confusion **Non-discrimination** rejects unfair exclusion. **Impartiality** allocates help according to need. Giving additional evacuation support to a person who cannot walk is impartial assistance, not discrimination. **Neutrality** means not taking sides in conflict; it does not mean refusing to help. Humanitarian assistance can actively protect people while remaining neutral. ### Practice question. State and explain any three general ethical principles of disaster management. [3 practice marks] #### Answer 1. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 2. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 3. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. **Yaad rakho:** Help together; treat fairly; protect dignity; co-operate; prevent harm; communicate responsibly. --- ## M2 · Ethics before a disaster Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/principles--before/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/principles/before M2 PPT pp 1–14 · unit 3 **Definition.** Disaster ethics concerns fair, responsible decisions that respect human dignity and reduce avoidable harm. Before a disaster, it centres on prevention, information, participation and equitable preparedness. **Simple meaning.** Warning tab useful hai jab har affected insaan usse samajh bhi sake aur action bhi le sake. ## Understand each responsibility 1. **Provide reliable risk information.** Explain the hazard, likely impact and protective action in languages and formats people can understand. Unexplained technical data is not an effective warning. 2. **Allow participation and expression.** Residents should help shape local plans; workers should be able to raise safety concerns. Local knowledge identifies barriers that a map may miss. 3. **Protect vulnerable groups fairly.** Arrange accessible shelters, assistance, medicines and transport. Equal treatment does not always mean identical supplies. 4. **Educate and train.** Schools, hospitals, workplaces and tourist locations need drills and clear emergency procedures. 5. **Protect the environment and enforce prevention.** Healthy ecosystems, safe construction and accountable decisions reduce exposure and vulnerability. 6. **Plan evacuation responsibly.** Explain why, when, where and how evacuation will happen. Protect dignity, family unity and property as far as practicable. Necessary emergency powers must follow applicable law. 7. **Provide accountability and remedies.** People need ways to challenge unsafe decisions and report failures. ### Practice question. Explain ethical principles applicable before a disaster. [3 practice marks] #### Answer 1. **Information and participation:** provide reliable, accessible risk information and include residents in planning. 2. **Prevention and training:** implement safety measures and conduct drills in schools, workplaces and public places. 3. **Equitable protection:** make special arrangements for people with limited mobility, children and other at-risk groups, while protecting dignity and access to remedies. #### Illustrative application · Inclusive planning before the warning Before the cyclone season, a coastal village identifies residents who need evacuation assistance, checks accessible transport and shelter access, explains warnings in local languages, and invites residents to report gaps. These actions apply participation, reliable information and equitable protection before an emergency occurs. **Yaad rakho:** Before: inform, involve, train, protect. --- ## M2 · Ethics during a disaster Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/principles--during/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/principles/during M2 PPT pp 1–14 · unit 3 **Definition.** Humanitarian assistance should protect life and dignity and be allocated according to need, without discrimination, exploitation or corruption. **Simple meaning.** Relief need ke hisaab se; favouritism ya photo-op ke hisaab se nahi. ## From principle to action | Principle | What responders must do | | --- | --- | | Impartial assistance | Use transparent needs assessments; do not favour a religion, political group or social class. | | Dignity and privacy | Provide safe shelter, sanitation and privacy; obtain consent where possible and protect personal information. | | Inclusion | Provide accessible communication and assisted evacuation; avoid separating children from carers unnecessarily. | | Information and participation | Communicate the location of shelters, water, health services and registration points; listen to residents. | | Responder safety | Provide training, protective equipment, rest, coordination and psychological support. | | Social and environmental protection | Support family reunification; prevent unsafe waste disposal and further contamination. | Prioritising by urgent need differs from arbitrary favouritism. Clinical triage is performed by trained medical personnel using urgency and expected benefit; it should not be reduced to “always treat one age group first”. ### Practice question. Explain three ethical duties during disaster response. [3 practice marks] #### Answer 1. **Impartial relief:** distribute food, water and shelter according to assessed needs without discrimination. 2. **Respect for dignity:** protect privacy, personal safety, family unity and freedom from abuse. 3. **Accessible and safe assistance:** communicate clearly, support those needing help to evacuate, and protect rescue workers with equipment and training. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. **Yaad rakho:** During: save fairly, explain clearly, protect dignity. --- ## M2 · Ethics after a disaster and engineers’ responsibilities Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/principles--after/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/principles/after M2 PPT pp 1–14 · unit 3 **Definition.** Ethical recovery restores essential services, rights and livelihoods while reducing future risk. Urgency does not justify unsafe rebuilding or exclusion from assistance. **Simple meaning.** Recovery ka target bas purana normal nahi—safer normal hai. 1. **Restore social and economic rights:** reopen schools and healthcare, support housing and livelihoods, and provide mental-health care. 2. **Restore civil participation:** help replace identity documents, reunite families and keep affected residents involved in decisions. 3. **Protect property and culture:** use fair claims procedures when documents are lost; respect cultural practices and heritage. 4. **Rebuild safely:** assess sites, apply building standards and protect the environment. Temporary shelters should not become a substitute for durable recovery. 5. **Accountability:** disclose eligibility and spending, hear complaints and investigate abuse. ## Engineering and AI contributions | Before | During / immediately after | Recovery | | --- | --- | --- | | Civil: risk-informed design; mechanical: safe equipment; IT: secure backups; AI: assist analysis. | Assess damage safely, restore communication, support resource allocation and verified situational reports. | Rebuild lifelines safely; restore data and services; audit failures and improve designs. | AI estimates are decision-support, not automatic authority. Validate data, protect personal information, disclose uncertainty and retain human judgement for evacuation and relief decisions. ### Practice question. Explain the role of engineers in disaster management. [3 practice marks] #### Answer 1. **Before impact:** design resilient buildings and lifelines, map hazards and maintain warning and backup systems. 2. **During response:** assess infrastructure damage, restore emergency communications and support safe rescue logistics. 3. **During recovery:** restore services and rebuild to safer standards while reviewing the failures that increased losses. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. **Yaad rakho:** After: rights, livelihoods, safer rebuilding. --- ## M2 · NDMA, SDMA, DDMA, NDRF and NIDM Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/institutions--bodies/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/institutions/bodies M2 PPT pp 15–18 · syllabus unit 3 **Definition.** India’s disaster management framework distributes policy, planning and response responsibilities across national, state, district and local levels. **Simple meaning.** Authority plan banati hai, Force field operation karti hai, Institute training deta hai. Swipe across the diagram to read its labels ↔ ![From national policy to local action](https://deep-learning-study-room.vercel.app/dm/fig/institutions.e7262187f0.svg) Diagram: From national policy to local action. Labels: From national policy to local action | From national policy to local action | National: NDMA and Union government | Policy, planning framework, guidance and national support | State: SDMA and state departments | State plans, coordination, sector responsibilities and resources | District: DDMA and district administration | Local risk assessment, planning, coordination and implementation | Local authorities and communities | Warnings, preparedness, service delivery and assisted evacuation | Technical support | IMD: weather CWC: | floods INCOIS: tsunami | Other key roles | NDRF: specialist | response NIDM: training | and capacity Authorities plan and coordinate; technical agencies provide specialist information; response forces conduct specialised operations. | Body | Full name / leadership | Main role | | --- | --- | --- | | NDMA | National Disaster Management Authority; chaired by the Prime Minister | National policy, plans, guidelines and coordination for risk reduction and effective response. | | SDMA | State Disaster Management Authority; chaired by the Chief Minister | State policy, plans and coordination adapted to the state’s risks. | | DDMA | District Disaster Management Authority; headed by the District Magistrate / Collector / Deputy Commissioner | District planning, coordination, preparedness and local implementation; elected local representative has a co-chairing role under the Act. | | NDRF | National Disaster Response Force | Specialist response including search, rescue and disaster operations. | | NIDM | National Institute of Disaster Management | Training, capacity building, research and documentation. | | Local authorities | Municipalities, panchayats and local services | Maintain local services, implement safety measures and assist warnings, evacuation and relief. | An **authority** frames policy and coordinates. A **force** provides operational response. An **institute** develops skills and knowledge. They are not interchangeable. State and local services also respond; it is incorrect to suggest that only NDRF does rescue. ### Practice question. Differentiate between NDMA and NDRF. [2 practice marks] #### Answer **NDMA** is the apex disaster management authority that lays down policies, plans and guidelines and coordinates their implementation. **NDRF** is a specialised response force that carries out operations such as search and rescue. NDMA’s role is strategic and coordinating; NDRF’s role is primarily operational. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. **Yaad rakho:** A = Authority; F = Force; I = Institute. --- ## M2 · NDMA functions, policy and guideline themes Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/institutions--ndma/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/institutions/ndma M2 PPT pp 15–18 · syllabus unit 3 **Definition.** The Disaster Management Act, 2005, as amended in 2025, provides the institutional basis for India’s disaster management system. The National Policy on Disaster Management, 2009 emphasises prevention, mitigation, preparedness, participation and resilience. **Simple meaning.** Policy direction deti hai; guideline us direction ko practical actions mein badalti hai. ## NDMA functions: explain the verb, not just the name 1. **Policy and national planning:** establish the national approach and planning framework. 2. **Guidelines:** guide state authorities and central ministries in preparing plans and integrating risk reduction into development. 3. **Coordination:** coordinate implementation across institutions and sectors. 4. **Mitigation and capacity building:** recommend support for mitigation and promote preparedness, training and risk reduction. 5. **Institutional guidance:** guide disaster management capacity-building arrangements, including broad policy for NIDM. ## Guidelines listed in the lecture The lecture’s dated index groups practical guidance on earthquakes, floods and urban floods, cyclones, tsunami, drought, landslides and avalanches, chemical/biological/radiological events, heat and cold, GLOFs, lightning, boat safety, shelter, schools, hospitals, heritage, psychosocial care, relief standards and incident response. Understand their purpose: translate policy into hazard-specific and sector-specific action. The slide list is a historical teaching index, not a complete current catalogue. ### Practice question. Explain three functions of NDMA. [3 practice marks] #### Answer 1. **Policy and planning:** establish national disaster management policies and the national planning framework. 2. **Guidelines:** guide state authorities and ministries in preparing plans and incorporating prevention and mitigation into development. 3. **Coordination and capacity:** coordinate implementation, promote mitigation and preparedness and support institutional capacity building. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. For an answer asking “according to the lecture”, the PPT also explicitly lists approval of the National Plan and central ministry plans, recommending mitigation funds and assistance to affected countries as determined by the Central Government. Read the current-framework lesson below for the 2025 amendment and the distinction between the NDRF Force and Fund. **Yaad rakho:** Policy → plans → guidelines → coordination. --- ## M2 · Technical agencies and the warning-to-action chain Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/institutions--agencies/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/institutions/agencies M2 PPT pp 15–18 · syllabus unit 3 **Definition.** A technical agency measures or forecasts a hazard; disaster authorities and local services turn that information into protective action. **Simple meaning.** Forecast milna first step hai; last step logon ka safe action lena hai. | Agency | Relevant role | Example of action enabled | | --- | --- | --- | | IMD | India Meteorological Department: weather and cyclone monitoring and warnings | Coastal evacuation preparations after a cyclone warning | | CWC | Central Water Commission: river monitoring, flood forecasts and technical water-management support | Flood warnings and reservoir inflow planning | | INCOIS / ITEWC | Indian National Centre for Ocean Information Services / Indian Tsunami Early Warning Centre | Tsunami advisories based on seismic and ocean observations | | NCS | National Centre for Seismology: seismic monitoring and earthquake parameters | Rapid information on a detected earthquake | | ISRO / NRSC | Space-based observations, disaster mapping and decision support | Identify flood extent and exposed settlements | | GSI | Geological Survey of India: geological and landslide information | Landslide susceptibility studies and specialist advice | ### Practice question. Describe the role of the Central Water Commission in flood management. [3 practice marks] #### Answer 1. It monitors river conditions and issues flood and inflow forecasts for authorities. 2. It provides technical advice for flood management, river works and reservoir operation studies. 3. Its data supports warnings, evacuation decisions and coordinated planning with state agencies and IMD. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Measure → warn → decide → act. --- ## M2 · Current framework: the 2025 amendment; Force versus Fund Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/institutions--current-framework/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/institutions/current-framework M2 PPT pp 15–18 · syllabus unit 3 **Definition.** A disaster authority coordinates decisions, a response force supplies specialised personnel, and a response fund supplies financial assistance. Similar abbreviations do not make their functions identical. ## Read the full name before describing the role | Name | What it is | Correct example | | --- | --- | --- | | National Disaster Response Force (NDRF) | Specialist operational personnel and equipment | Teams conduct search and rescue. | | National Disaster Response Fund (NDRF) | A financial assistance mechanism | Approved assistance supports disaster-related needs. | | National Disaster Mitigation Fund (NDMF) | A fund supporting risk-reduction measures | Approved mitigation projects reduce future losses. | **Example.** In a flood, rescuing trapped residents is an operational task. Approving financial assistance is a funding decision. The same abbreviation NDRF can appear in both contexts, so write “Force” or “Fund” explicitly. ## What changed in 2025? The amendment enables states to constitute Urban Disaster Management Authorities for state capitals and municipal-corporation cities, except the NCT of Delhi and UT of Chandigarh. These authorities prepare urban plans and coordinate implementation. It mandates a national disaster database and gives the existing High-Level Committee statutory status. That committee approves assistance from the Response and Mitigation Funds. [Source: Ministry of Home Affairs, Rajya Sabha reply, 11 February 2026](https://www.mha.gov.in/MHA1/Par2017/pdfs/par2026-pdfs/RS11022026/1336.pdf). The core national → state → district framework still explains the lecture’s institution questions. **Yaad rakho:** Force = rescue team; Fund = financial help; Authority = planning and coordination. --- ## M2 · How an early warning system works Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/warnings--components/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/warnings/components M2 PPT pp 19–34 · unit 3 **Definition.** An early warning system links risk knowledge, hazard monitoring and forecasting, warning communication, and preparedness so people can act before or during the early stages of dangerous impacts. **Simple meaning.** Sensor ne danger dekha, lekin message ya transport nahi mila—to system adhura hai. Swipe across the diagram to read its labels ↔ ![Warning must reach the person who needs to act](https://deep-learning-study-room.vercel.app/dm/fig/warning-chain.6950d12628.svg) Diagram: Warning must reach the person who needs to act. Labels: Warning must reach the person who needs to act | Warning must reach the person who needs to act | 1 · Know risk | Who is exposed? | 2 · Monitor | Detect and forecast | 3 · Communicate | Trusted action | message | 4 · Act | Safe route and | shelter | Continuous review: did the message reach everyone, and could they act? A sensor alone is not an early warning system. Every link must work, including the last mile to people. | Component | Question answered | Flood example | | --- | --- | --- | | Risk knowledge | Who and what can be harmed? | Map low-lying settlements and people needing assistance. | | Monitoring and forecasting | What is developing and when might it affect us? | Combine rainfall, river gauges and forecast models. | | Warning communication | What should people understand and do? | Send an official message naming places, timing and safe actions. | | Preparedness / response capacity | Can people act on the message? | Open shelters and use rehearsed evacuation arrangements. | ## Where monitoring and evaluation fit Evaluate accuracy, lead time, coverage, comprehension and actual response; improve the system after drills and real events. The lecture groups the first two components under “risk knowledge and monitoring” and lists evaluation as a fourth level. The widely used four-pillar model above separates risk knowledge from forecasting and treats evaluation as continuous. Both descriptions require communication and action. ### Practice question. Explain the components of an early warning system. [3 practice marks] #### Answer 1. **Risk knowledge:** identify hazards, exposed areas and vulnerable populations. 2. **Monitoring and forecasting:** collect observations and estimate likely hazardous developments. 3. **Communication:** disseminate authoritative, timely, understandable warnings. 4. **Response capability:** maintain plans, shelters, trained personnel and drills so warnings lead to protective action. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. **Yaad rakho:** Know risk → detect → communicate → act. --- ## M2 · Types of warnings, communication and failure points Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/warnings--types/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/warnings/types M2 PPT pp 19–34 · unit 3 **Definition.** Warning systems can be classified by hazard, operating scale and whether they address one or multiple hazards. **Simple meaning.** Message ka “kya, kahan, kab, ab kya karna hai” clear hona chahiye. | Basis | Examples | Meaning | | --- | --- | --- | | Hazard | Flood, cyclone, tsunami, drought, earthquake shaking warning | Methods and available warning time differ by physical process. | | Operating level | Local, national, regional / international | A village siren and a regional tsunami centre serve different functions. | | Hazard scope | Single-hazard or multi-hazard | A multi-hazard platform coordinates several hazards and their cascading effects. | ## Communication channels Use a combination of sirens, public-address systems, radio, television, SMS or cell broadcasts, phone calls, official apps and websites, social media, local volunteers, police and community networks. Sirens attract attention but need a known meaning. Text messages require literacy and connectivity. Radio and trained local volunteers can provide backup during power or mobile-network failures. ## A useful warning includes 1. The issuing authority and issue time. 2. The hazard, affected locations and likely time window. 3. Expected impacts and uncertainty where relevant. 4. Clear protective action: where to go, what to avoid and whom to contact. 5. Where to obtain the next official update. ### Practice question. Why can an accurate warning fail to prevent a disaster? [3 practice marks] #### Answer 1. It may not reach everyone because of power loss, network failure or inaccessible language. 2. People may not understand or trust it if it lacks a clear source and instructions. 3. Even informed people may lack transport, accessible shelters or enough time to act. Therefore forecasting must be combined with communication and preparedness. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. **Yaad rakho:** Official source + place + time + impact + action. --- ## M2 · Four operating levels of early warning systems Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/warnings--levels/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/warnings/levels M2 PPT pp 19–34 · unit 3 **Definition.** An operating level describes the geographic and institutional scale at which a warning system works. It is different from a warning stage or the components of a system. | Level | Who / what it serves | Example | | --- | --- | --- | | Community / local | A settlement, municipality or local community. | A village flood gauge, siren and trained evacuation volunteers. | | National | A national technical agency and national coordination system. | IMD cyclone monitoring and warnings for India. | | Regional | Several countries or a wider geographic region sharing a hazard. | An Indian Ocean tsunami warning arrangement connecting national centres. | | Global | International monitoring and information across the world. | International health or food-security monitoring and alerts. | ## Three different lists: read the question carefully | Question asks for… | Give this list | | --- | --- | | Operating levels | Local → national → regional → global. | | EWS components | Risk knowledge → monitoring/forecasting → communication → response capability. | | IMD cyclone warning stages | Pre-cyclone watch → cyclone alert → cyclone warning → post-landfall outlook. | ### Practice question. Explain the four operating levels of early warning systems. [3 practice marks] #### Answer A local system serves a community, such as a flood siren network. A national system is operated by a national agency such as IMD. A regional system coordinates information for several countries exposed to a common hazard, such as Indian Ocean tsunami risk. A global system monitors and shares international information, such as global health or food-security alerts. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. **Yaad rakho:** Level = kis area tak system kaam karta hai; stage = warning process ka kaunsa step hai. --- ## M2 · How an earthquake starts: plates, faults, focus and epicentre Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--origin/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/origin M2 PPT pp 35–72 · syllabus units 1–2 **Definition.** An earthquake is ground shaking caused by a sudden release of stored energy in the Earth. Most destructive earthquakes result from sudden slip on a fault, sending out seismic waves. **Simple meaning.** Plate slow move karti hai, fault lock rehta hai; suddenly slip hua toh stored energy waves ban kar nikli. ## Build the idea one step at a time 1. The outer rigid Earth is divided into **tectonic plates**. Their slow relative movement loads rocks with stress. 2. A **fault** is a fracture or zone of fractures along which rock blocks can move. Friction can temporarily lock the blocks. 3. The rocks deform and store elastic energy. When stress exceeds the resistance to slip, the fault moves suddenly. This is the elastic-rebound explanation. 4. Energy travels outward as **seismic waves**. These cause shaking at the surface. The waves carry the released energy; they are not the original tectonic cause. Swipe across the diagram to read its labels ↔ ![Focus, epicentre and a slipping fault](https://deep-learning-study-room.vercel.app/dm/fig/earthquake.46adac0128.svg) Diagram: Focus, epicentre and a slipping fault. Labels: Focus, epicentre and a slipping fault | Focus, epicentre and a slipping fault | Fault plane | Epicentre: surface above focus | Focus: rupture begins within Earth | Surface | Waves spread from the source; shaking effects vary with local conditions. Focus is inside the Earth; epicentre is the surface point directly above it. Fault rupture can extend far beyond the starting point. | Word | Meaning | | --- | --- | | Focus / hypocentre | The point inside the Earth where rupture begins. | | Epicentre | The point on the surface vertically above the focus. | | Focal depth | Vertical distance from the surface to the focus. | | Foreshock / mainshock / aftershock | Smaller preceding event, largest event in a sequence, and subsequent events; “foreshock” is usually identified retrospectively. | ### Practice question. Explain the cause of a tectonic earthquake and distinguish focus from epicentre. [3 practice marks] #### Answer Tectonic movement builds stress in rocks locked along a fault. When resistance is overcome, sudden slip releases stored elastic energy as seismic waves. The **focus** is the point within the Earth where rupture starts; the **epicentre** is the point on the surface directly above it. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. **Yaad rakho:** Focus below; epicentre above. --- ## M2 · Plate boundaries and earthquake classifications Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--types/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/types M2 PPT pp 35–72 · syllabus units 1–2 **Definition.** Earthquakes can be classified by their cause, position relative to plates and focal depth. These are different classification bases, so one event can belong to several categories at once. **Simple meaning.** Converge = paas; diverge = door; transform = side se slide. Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Three types of relative plate movement. Arrows show motion, not seismic waves. | Boundary | Movement | Typical process | | --- | --- | --- | | Convergent | Plates move towards one another. | Subduction or continental collision builds compressive stress. | | Divergent | Plates move apart. | Extension and faulting occur as new crust forms at spreading boundaries. | | Transform | Plates slide horizontally past one another. | Shear stress is released along strike-slip faults. | | Classification | Types and meaning | | --- | --- | | By plate position | Interplate: at a plate boundary. Intraplate: within a plate away from its boundary; old faults can reactivate. | | By cause | Tectonic movement; volcanic activity; collapse in cavities; induced events associated with activities such as mining or reservoir loading. | | By focal depth | Common seismological grouping: shallow 0–70 km, intermediate 70–300 km, deep 300–700 km. Boundary conventions may be inclusive on either side. | A shallow event can produce severe local shaking because its source is close to the surface, but depth alone does not determine damage. Magnitude, distance, soil, construction and preparedness also matter. Intraplate does not mean harmless: Kutch and the peninsular region have experienced damaging earthquakes. ### Practice question. Differentiate between interplate and intraplate earthquakes. [2 practice marks] #### Answer **Interplate earthquakes** occur at boundaries where tectonic plates interact. **Intraplate earthquakes** occur within a plate, away from its boundary, often on reactivated faults. Both can be damaging; location within a plate does not imply zero seismic risk. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. **Yaad rakho:** Classify by cause, location or depth—do not mix the three. --- ## M2 · P, S, Love and Rayleigh waves; the seismograph Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--waves/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/waves M2 PPT pp 35–72 · syllabus units 1–2 **Definition.** Seismic waves are disturbances carrying earthquake energy. Body waves travel through the Earth; surface waves propagate along its surface. **Simple meaning.** P = push-pull; S = side shear. Seismogram record hai, machine nahi. Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. Compare the direction of energy travel with the local movement of ground particles. | Wave | Particle movement | Travel / key point | | --- | --- | --- | | P: primary | Compression and expansion parallel to travel direction. | Fastest body wave; travels through solids and fluids. | | S: secondary | Shearing perpendicular to travel direction. | Slower than P; cannot propagate through liquids as shear waves. | | Love | Horizontal side-to-side surface motion. | Surface wave; produces strong lateral shaking. | | Rayleigh | Rolling, approximately elliptical motion in a vertical plane. | Surface wave with vertical and horizontal ground movement. | “Direction of travel” means where wave energy moves. “Particle movement” means how a small part of the ground moves locally. A particle need not travel all the way from the fault to your city. Do not list Love waves as body waves. ## How shaking is recorded A **seismometer** senses ground movement. A **seismograph** is the sensing-and-recording system; a **seismogram** is its record. A classical instrument uses inertia: the supporting ground moves relative to a suspended mass. Modern electronic instruments record a time series. Sensor, recorder and timing reference are the three basic components. ## Why P–S arrival separation is useful P waves arrive first because they travel faster. The P–S time gap generally increases with source distance. Records from several stations constrain earthquake location. One station alone does not uniquely locate an epicentre; real location calculations use travel-time models. ### Practice question. Compare P waves and S waves. [3 practice marks] #### Answer | P waves | S waves | | --- | --- | | Faster; arrive first. | Slower; arrive after P. | | Longitudinal compression and expansion. | Transverse shear motion. | | Travel through solids and fluids. | Do not travel through liquids as shear waves. | #### Illustrative application · Reading two arrivals A station records a P arrival before an S arrival because P waves travel faster. The growing arrival-time gap with distance can help locate the source using travel-time information. A gap alone, without an appropriate velocity model, is not a universal kilometre conversion. **Yaad rakho:** Body: P + S. Surface: Love + Rayleigh. --- ## M2 · Magnitude and intensity: the most important distinction Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--magnitude-intensity/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/magnitude-intensity M2 PPT pp 35–72 · syllabus units 1–2 **Definition.** Magnitude describes earthquake size using instrument-based scales. Intensity describes the shaking and effects at a particular location. **Simple meaning.** Magnitude event ka size; intensity tumhare location par effect. | Basis | Magnitude | Intensity | | --- | --- | --- | | Refers to | Size of the source event. | Effects at a site. | | Values | An event has an estimated magnitude for a specified scale; estimates can be revised. | One event has many site intensities. | | Scale example | Local magnitude Mₗ / moment magnitude M𝑤. | Modified Mercalli intensity I–XII. | | Evidence | Seismic recordings or seismic moment. | Felt reports, movement and damage observations. | | Depends on site? | Not a separate magnitude for each town. | Changes with distance, local soil and built environment. | Example: a magnitude 6 earthquake may be strongly felt near the source and weakly felt far away. The magnitude has not “become 3” in the distant town; local shaking intensity is lower. Magnitude does not directly tell you a death toll. ## Reading the Modified Mercalli scale I means not felt except under special circumstances; II–III are weakly felt; IV–V become widely noticeable; VI–VII can involve damage, especially to vulnerable construction; VIII–IX indicate severe damage; X–XII represent very severe to extreme effects. These are descriptive intensity levels, not energy multiplication factors. ### Practice question. Distinguish earthquake magnitude from earthquake intensity. [3 practice marks] #### Answer **Magnitude** expresses the size of an earthquake from instrument-based measurements, for example moment magnitude. **Intensity** expresses its observed effects at a particular site, for example Modified Mercalli I–XII. A given event has an estimated magnitude on a specified scale, but intensities vary among sites because distance, soil and construction differ. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. **Yaad rakho:** One event size, many local effects. --- ## M2 · Magnitude comparisons: powers, logarithms and three solved examples Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--logarithms/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/logarithms M2 PPT pp 35–72 · syllabus units 1–2 **Source of the calculations.** M2 PDF p 55 teaches the tenfold amplitude relation. The numerical values below were added for explanation; none is a recovered PYQ. The approximate energy-ratio relation is an external scientific extension (USGS), not a formula explicitly found in the supplied lecture text. **Definition.** A logarithmic scale expresses multiplicative changes as differences. A base-10 logarithm asks: “10 raised to what power gives this number?” **Simple meaning.** Log bas ulta sawaal hai: 10 ki kaunsi power? For example, 10² = 100, so log₁₀(100) = 2. On a compatible amplitude-based magnitude scale, a difference of 1 corresponds to a factor of 10 in measured amplitude after the required corrections. Earthquake energy follows the approximate relationship below; energy and amplitude are different quantities. $$ \Delta M=M_2-M_1,\qquad \frac{A_2}{A_1}=10^{\Delta M} $$ $$ \frac{E_2}{E_1}\approx10^{1.5\Delta M} $$ A is wave amplitude; E is released energy; Δ means “change in”. Amplitude comparisons assume the relevant scale and comparable/corrected recording conditions. Do not turn an energy ratio into a claim about building damage. ### Illustrative calculation (not a PYQ). Compare the amplitude and approximate energy of earthquakes of magnitude 6 and 5. #### Answer ## Given M₂ = 6; M₁ = 5. ## To find A₂/A₁ and E₂/E₁. ## Formula and why $$ A_2/A_1=10^{\Delta M};\quad E_2/E_1\approx10^{1.5\Delta M} $$ The magnitude difference is the exponent in the respective logarithmic relationship. ## Step-by-step solution #### Step 1. Find the difference $$ \Delta M=6-5=1 $$ #### Step 2. Find amplitude ratio $$ A_2/A_1=10^1=10 $$ #### Step 3. Find energy ratio $$ E_2/E_1\approx10^{1.5}=31.6228 $$ **Final answer:** 10 times the amplitude and approximately 31.6 times the energy. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). Compare magnitude 7 with magnitude 5 using amplitude and energy ratios. #### Answer ## Given M₂ = 7; M₁ = 5. ## To find The two ratios. ## Formula and why $$ A_2/A_1=10^{\Delta M};\quad E_2/E_1\approx10^{1.5\Delta M} $$ There are two magnitude units between the events, so multiply factors through the exponent. ## Step-by-step solution #### Step 1. Subtract magnitudes $$ \Delta M=7-5=2 $$ #### Step 2. Calculate amplitude $$ 10^2=100 $$ #### Step 3. Calculate energy $$ 10^{1.5\times2}=10^3=1000 $$ **Final answer:** 100 times the amplitude; approximately 1,000 times the energy. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). A corrected amplitude ratio is 100. Find the magnitude difference. If the smaller event has magnitude 4.3, estimate the larger event’s magnitude. #### Answer ## Given A₂/A₁ = 100; M₁ = 4.3. ## To find ΔM and M₂. ## Formula and why $$ \Delta M=\log_{10}(A_2/A_1),\quad M_2=M_1+\Delta M $$ The logarithm reverses exponentiation: 10² is 100. ## Step-by-step solution #### Step 1. Take the base-10 logarithm $$ \Delta M=\log_{10}(100)=2 $$ #### Step 2. Add the difference $$ M_2=4.3+2=6.3 $$ **Final answer:** Magnitude difference 2; larger magnitude 6.3. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. **Calculator:** use the *log* key for base 10, not *ln*. For 101.5, use the calculator’s 10ˣ function with exponent 1.5. Keep brackets around a multiplied exponent. **Yaad rakho:** +1 magnitude: ×10 amplitude, about ×32 energy. --- ## M2 · Seismic moment and moment magnitude: units first Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--moment/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/moment M2 PPT pp 35–72 · syllabus units 1–2 **Source of the calculations.** M2 PDF p 55 teaches seismic moment and moment magnitude. The three sets of values below were authored for practice, not taken from a recovered question paper. SI conversion and explicit unit conditions clarify the lecture formula. **Definition.** Seismic moment measures source strength using rock rigidity, slipped fault area and average slip. Moment magnitude converts this physical measure into a logarithmic magnitude. **Simple meaning.** Pehle moment ke units dekho, tab magnitude wali constant choose karo. $$ M_0=\mu A D=\mu LWD $$ | Symbol | Meaning | SI unit | | --- | --- | --- | | μ | Shear modulus / rigidity of rock | N/m² (Pa) | | A = L × W | Area of the fault that slipped | m² | | D | Average slip | m | | M₀ | Seismic moment | N·m | $$ M_w=\frac{2}{3}\left(\log_{10}M_0-9.1\right)\quad(M_0\text{ in N m}) $$ $$ M_w\approx\frac{2}{3}\log_{10}M_0-10.7\quad(M_0\text{ in dyn cm}) $$ The second convention is printed in the lecture without its unit condition. Do not insert N·m into the −10.7 formula. Since 1 N = 10⁵ dyn and 1 m = 100 cm, **1 N·m = 10⁷ dyn·cm**. The constants are rounded conventions, so the two formula results may differ slightly at the last decimal. ### Illustrative calculation (not a PYQ). A fault slips over an area 10 km long and 5 km wide with average slip 1 m. Rock rigidity is 3 × 10¹⁰ N/m². Calculate seismic moment and moment magnitude using SI units. #### Answer ## Given L=10 km; W=5 km; D=1 m; μ=3×10¹⁰ N/m². ## To find M₀ and M𝑤. ## Formula and why $$ M_0=\mu LWD;\quad M_w=\tfrac23(\log_{10}M_0-9.1) $$ Convert lengths to metres before forming area so the moment is in N·m. ## Step-by-step solution #### Step 1. Convert lengths $$ L=10\times1000=10000\text{ m};\quad W=5000\text{ m} $$ #### Step 2. Find the slipped area $$ A=10000\times5000=5\times10^7\text{ m}^2 $$ #### Step 3. Multiply rigidity, area and slip $$ M_0=(3\times10^{10})(5\times10^7)(1)=1.5\times10^{18}\text{ N m} $$ #### Step 4. Take the logarithm $$ \log_{10}(1.5\times10^{18})=18.176091 $$ #### Step 5. Convert to magnitude $$ M_w=\tfrac23(18.176091-9.1)=6.050727 $$ **Final answer:** M₀ = 1.5 × 10¹⁸ N·m; M𝑤 ≈ 6.05. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). The seismic moment is 10²⁵ dyn·cm. Calculate moment magnitude using the lecture convention. #### Answer ## Given M₀=10²⁵ dyn·cm. ## To find M𝑤. ## Formula and why $$ M_w=\tfrac23\log_{10}M_0-10.7 $$ The moment is already in dyn·cm, so this constant is appropriate. ## Step-by-step solution #### Step 1. Take log $$ \log_{10}(10^{25})=25 $$ #### Step 2. Multiply then subtract $$ M_w=\tfrac23\times25-10.7=16.666667-10.7=5.966667 $$ **Final answer:** M𝑤 ≈ 5.97. Do not compute ⅔ × (25 − 10.7); that is a different expression. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). If area and rigidity remain fixed but slip doubles, how do moment and moment magnitude change? #### Answer ## Given μ and A fixed; D₂ = 2 D₁. ## To find M₀ ratio and ΔM𝑤. ## Formula and why $$ M_0=\mu AD;\quad \Delta M_w=\tfrac23\log_{10}(M_{02}/M_{01}) $$ Multiplication makes moment proportional to slip; subtracting the magnitude equations cancels the common constant. ## Step-by-step solution #### Step 1. Find moment ratio $$ M_{02}/M_{01}=2 $$ #### Step 2. Take log $$ \log_{10}(2)=0.301030 $$ #### Step 3. Find magnitude change $$ \Delta M_w=\tfrac23\times0.301030=0.200687 $$ **Final answer:** Moment doubles; magnitude increases by about 0.201, not by a factor of two. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. **Yaad rakho:** Moment = rigidity × area × slip; magnitude = log of moment. --- ## M2 · Earthquake effects and why buildings fail Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--effects/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/effects M2 PPT pp 35–72 · syllabus units 1–2 **Definition.** Earthquake damage results from shaking and ground failure, followed in some cases by cascading hazards such as fire, landslides and tsunami. **Simple meaning.** Ground bas hilta nahi; kabhi uski support dene ki ability bhi gir jaati hai. | Effect | Mechanism | Consequence | | --- | --- | --- | | Ground shaking | Seismic waves accelerate the ground. | Structures experience inertia forces and may crack or collapse. | | Surface rupture | Fault displacement reaches the surface. | Roads, pipelines and foundations crossing the rupture may break. | | Liquefaction | Shaking raises pore-water pressure in susceptible saturated loose soils. | Soil loses effective strength; structures can settle or tilt. | | Landslide / rockfall | Shaking destabilises slopes. | Settlements and roads may be buried or cut off. | | Tsunami | Some undersea earthquakes displace the water column. | Coastal inundation; not every earthquake generates a tsunami. | | Fire and leaks | Utilities or industrial equipment break. | Fire, contamination and loss of water or power. | ## Impacts in an exam answer **Physical:** building and lifeline damage. **Social:** death, injury, displacement, disrupted education and trauma. **Economic:** direct repair losses and indirect loss of production or wages. **Ecological:** slope disturbance, habitat damage and contamination. Disease risk can increase where safe water, sanitation and healthcare fail; an epidemic is not inevitable after every earthquake. ### Practice question. Explain soil liquefaction and its effects. [3 practice marks] #### Answer Liquefaction is a loss of strength in susceptible water-saturated loose soil during strong shaking. Rising pore-water pressure reduces contact forces between soil grains, causing the soil to behave temporarily like a fluid. It can cause settlement, tilting of buildings, lateral spreading and damage to buried pipes. #### Illustrative application · Loose saturated ground Imagine two sites experiencing comparable shaking: one rests on competent rock and the other on loose, saturated sand. Excess pore-water pressure can reduce the sand’s strength, allowing a building to settle or tilt. The hazard depends on ground conditions as well as the earthquake. **Yaad rakho:** Shaking → ground failure → cascading hazards. --- ## M2 · Earthquake preparedness, response, recovery and cordons Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--management/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/earthquakes/management M2 PPT pp 35–72 · syllabus units 1–2 **Definition.** Earthquake risk reduction combines safe construction, non-structural safety, preparedness and coordinated response. Precise earthquake prediction is not a dependable safety strategy. **Simple meaning.** Earthquake ka exact date guess karne ke bajay building aur response ready rakho. ## Before shaking - Get qualified assessment of vulnerable structures; retrofit where needed and enforce safe design. - Secure shelves, cylinders and heavy objects; keep heavy items low. - Prepare a family communication plan, emergency kit and accessible evacuation arrangements. Practise Drop, Cover and Hold On. ## During shaking Indoors, **Drop, Cover and Hold On**: get low, protect your head and neck under sturdy cover where possible, and hold on. Keep away from glass. Do not rush towards stairs or lifts while the building is shaking. Outdoors, move away from buildings and overhead lines if safe. In a vehicle, stop in a safe clear place away from bridges and hazards and remain inside until shaking stops. ## After shaking Expect aftershocks. Leave a damaged building by a safe route when shaking stops; do not use lifts or re-enter until cleared. Avoid damaged utilities and flames near suspected gas leaks. Follow official information. On a threatened coast, strong or long shaking is a reason to follow tsunami evacuation procedures without waiting at the beach. ## Agency responsibilities 1. **Response:** rapid assessment, search and rescue, emergency care, firefighting, accessible shelter, communication and restoration of critical services. 2. **Recovery:** inspect and repair lifelines, restore housing and livelihoods, support mental health, and document damage. 3. **Mitigation:** revise unsafe siting and strengthen critical buildings rather than reproduce previous weaknesses. ## Cordon-off zones A cordon is a controlled boundary around a dangerous site. Authorities assess hazards, mark the perimeter, create controlled access points, communicate restrictions and keep responder routes clear. Exclusion zones keep the public away from high danger; restricted zones permit specified authorised tasks; safe assembly areas provide refuge. Distances depend on the incident. Do not treat “gold, silver and bronze” as universal fixed-distance hazard rings: those terms are also used for command levels. ### Practice question. Explain three earthquake mitigation measures. [3 practice marks] #### Answer 1. **Safe construction and retrofitting:** design and strengthen structures to resist earthquake forces and reduce collapse. 2. **Non-structural safety:** anchor shelves and equipment and protect utilities to reduce falling-object and fire hazards. 3. **Planning and drills:** prepare communication, evacuation and response arrangements so people and agencies act safely. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. Earthquake early warning detects a rupture that has already begun and may warn some locations before strong shaking arrives. It is not a prediction of an earthquake days in advance, and nearby locations may receive little or no useful warning. **Yaad rakho:** Before: strengthen. During: protect. After: inspect and recover. --- ## M2 · Floods: definition, causes and classifications Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--types/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/types M2 PPT pp 73–126 · syllabus units 1–2 **Definition.** A flood is the inundation of normally dry land by water. It may result from river overflow, intense rainfall, inadequate drainage, storm surge or sudden release of stored water. **Simple meaning.** Flood type ka answer dete waqt batao: paani kahan se aaya, aur kitni jaldi badha. ## Two separate ways of classifying floods | By onset | Meaning | Planning implication | | --- | --- | --- | | Slow-onset | Water rises gradually, often after prolonged rainfall. | There may be time for planned evacuation, but long duration disrupts livelihoods. | | Rapid-onset | Water rises over a comparatively short period. | Warnings and prompt action become critical. | | Flash flood | Very rapid rise, often within minutes to a few hours of the trigger. | Little lead time; fast flow and debris can be highly destructive. | | By source | How it develops | | --- | --- | | River / fluvial | River discharge exceeds channel capacity and water spreads over its floodplain. | | Urban / pluvial | Rainfall runoff exceeds drainage or infiltration capacity; a river need not overflow. | | Dam-breach | Dam failure releases reservoir water suddenly downstream. | | Coastal surge | Wind and low pressure raise sea level; high tide can compound flooding. | | GLOF | Sudden release from a glacial lake, for example after its retaining barrier fails. | “Flash” describes speed, whereas “dam-breach” describes the source. A dam-breach flood may therefore also be a flash flood. Onset speed and total flood duration are different; a rapidly starting event may leave some areas inundated for much longer. The PPT uses “rapid” and “flash” inconsistently, so describe the actual time-scale instead of forcing a rigid universal duration. ### Practice question. Differentiate between slow-onset floods and flash floods. [3 practice marks] #### Answer | Slow-onset | Flash | | --- | --- | | Gradual rise, often from prolonged basin rainfall. | Sudden rise, commonly after intense rainfall or dam failure. | | Usually more time for warning and evacuation. | Often little warning time. | | Long inundation disrupts crops and livelihoods. | Fast, debris-laden flow can cause immediate destruction. | #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Source and speed are two different labels. --- ## M2 · Why cities flood; the sponge-city idea Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--urban/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/urban M2 PPT pp 73–126 · syllabus units 1–2 **Definition.** Urban flooding occurs when runoff entering a built-up area exceeds the capacity of its drainage, infiltration and storage systems. **Simple meaning.** City mein rain zyada ho sakti hai, par paani ko soak, store aur exit ka rasta bhi chahiye. Swipe across the diagram to read its labels ↔ ![Urbanisation changes how rainfall becomes runoff](https://deep-learning-study-room.vercel.app/dm/fig/urban-flood.03309d30e8.svg) Diagram: Urbanisation changes how rainfall becomes runoff. Labels: Urbanisation changes how rainfall becomes runoff | Urbanisation changes how rainfall becomes runoff | More permeable catchment | More paved catchment | More infiltration / natural storage | Faster surface runoff → drains | High rainfall + limited storage/conveyance + exposure can cause flood losses. Paving increases runoff; loss of storage and blocked outlets make it harder to drain that runoff. 1. **Impervious surfaces:** roofs and roads prevent much of the rain from soaking into soil, so more water runs off quickly. 2. **Lost storage:** building on wetlands and lakes removes places that temporarily hold water. 3. **Blocked or undersized drains:** waste, silt and poor maintenance reduce conveyance capacity. 4. **Encroachment and poor connectivity:** construction blocks natural flow routes or disconnects drains from outlets. 5. **Heavy rainfall and high downstream water:** intense rain increases inflow; high tides or high river levels can prevent drainage at outfalls. ## Sponge-city measures A sponge-city approach combines permeable surfaces, rain gardens, wetlands, ponds and green spaces to absorb, slow, store and reuse rainwater. It works with drainage and land-use controls. It cannot absorb unlimited rainfall or replace flood warnings. | Problem | Matching measure | | --- | --- | | High runoff from paving | Permeable paving and green areas where suitable | | Little temporary storage | Detention basins and protected wetlands | | Clogged outlets | Pre-monsoon cleaning and reliable solid-waste collection | | Homes in flow paths | Risk-informed land use and floodplain protection | | People receive warnings too late | Local warnings, safe routes and shelters | ### Practice question. Explain three causes of urban flooding and corresponding measures. [3 practice marks] #### Answer 1. Impervious roofs and roads increase runoff; permeable surfaces and rain gardens can reduce and delay it. 2. Blocked or inadequate drains cannot carry peak flows; cleaning, capacity upgrades and connected outlets improve drainage. 3. Encroachment on wetlands and floodplains removes storage and exposes settlements; protection of these areas and risk-based land-use control reduce losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Soak → store → drain; keep the flow path open. --- ## M2 · Runoff calculation: understand C, rainfall, area and units Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--runoff/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/runoff M2 PPT pp 73–126 · syllabus units 1–2 **Source of the calculations.** The first two examples adapt the barren-land and township values in M2 PDF p 88, with the unit error corrected. The percentage-increase request, time conversion and 20-hectare example add practice. These are lecture examples or authored extensions, not PYQs. **Definition.** Runoff is water that flows over the surface rather than being retained or infiltrating. The rational method is a simplified peak-flow estimate for suitable small catchments under stated rainfall assumptions. **Simple meaning.** C zyada matlab same rain se zyada runoff. Area ka unit change hua toh factor bhi change hoga. $$ Q=0.27778\,C I A\quad[Q:\text{m}^3/\text{s},\ I:\text{mm/h},\ A:\text{km}^2] $$ | Symbol | Meaning | | --- | --- | | C | Dimensionless runoff coefficient; a higher value represents a greater runoff contribution. | | I | Rainfall intensity: depth of rain per hour, not total storm depth. | | A | Catchment area draining to the point of interest, not the channel cross-section. | | Q | Estimated peak discharge: volume per unit time. | ## Where the conversion factor comes from 1 mm = 0.001 m; 1 km² = 1,000,000 m². So 1 mm falling on 1 km² produces 1,000 m³ of rainfall volume. Dividing one hour by 3,600 seconds gives 1,000/3,600 = 0.27778. The runoff coefficient multiplies this rainfall input. $$ Q=1000CIA\ (\text{m}^3/\text{h},\ A\text{ in km}^2) $$ $$ Q=10CIA\ (\text{m}^3/\text{h},\ A\text{ in hectares}) $$ **Unit correction:** “10 CIA” is compatible with area in hectares and output in m³/h. It is not compatible with area in km² and the same output unit. The lecture mixes these labels; always write the units in your working. 1 km² = 100 hectares. ### Illustrative calculation (not a PYQ). A 1 km² catchment receives rainfall of intensity 75 mm/h. Using C = 0.5, estimate runoff in m³/h and m³/s. #### Answer ## Given A=1 km²; I=75 mm/h; C=0.5. ## To find Runoff discharge in both units. ## Formula and why $$ Q_{\rm hour}=1000CIA,\quad Q_{\rm second}=Q_{\rm hour}/3600 $$ The first formula keeps time in hours; dividing by 3,600 converts to seconds. ## Step-by-step solution #### Step 1. Calculate rainfall volume rate $$ 1000\times75\times1=75000\text{ m}^3/\text{h} $$ #### Step 2. Apply runoff coefficient $$ Q=0.5\times75000=37500\text{ m}^3/\text{h} $$ #### Step 3. Convert time unit $$ Q=37500/3600=10.416667\text{ m}^3/\text{s} $$ **Final answer:** 37,500 m³/h, or about 10.417 m³/s. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. ### Illustrative calculation (not a PYQ). The same catchment becomes a township with C = 0.9. Find its new runoff and the percentage increase. #### Answer ## Given A=1 km²; I=75 mm/h; C changes from 0.5 to 0.9; old Q=37,500 m³/h. ## To find New Q and percentage increase. ## Formula and why $$ Q=1000CIA;\quad \%\text{increase}=\frac{Q_{new}-Q_{old}}{Q_{old}}\times100 $$ Only C changes, so the increase reflects land-cover change in this simplified comparison. ## Step-by-step solution #### Step 1. Find new discharge $$ Q_{new}=1000(0.9)(75)(1)=67500\text{ m}^3/\text{h} $$ #### Step 2. Subtract old discharge $$ 67500-37500=30000\text{ m}^3/\text{h} $$ #### Step 3. Divide by the old value $$ (30000/37500)\times100=80\% $$ #### Step 4. Convert new discharge $$ 67500/3600=18.75\text{ m}^3/\text{s} $$ **Final answer:** 67,500 m³/h =18.75 m³/s; an 80% increase. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. ### Illustrative calculation (not a PYQ). For a 20-hectare catchment with C = 0.6 and rainfall intensity 50 mm/h, estimate discharge in m³/s. #### Answer ## Given A=20 ha; C=0.6; I=50 mm/h. ## To find Q in m³/s. ## Formula and why $$ Q=10CIA/3600\quad(A\text{ in ha}) $$ The area is in hectares, so use the hectare conversion. ## Step-by-step solution #### Step 1. Calculate hourly discharge $$ Q=10(0.6)(50)(20)=6000\text{ m}^3/\text{h} $$ #### Step 2. Convert to seconds $$ Q=6000/3600=1.666667\text{ m}^3/\text{s} $$ **Final answer:** Q ≈1.667 m³/s. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. These are lecture-formula practice examples, not verified past-paper questions. Real drainage design needs rainfall duration, time of concentration, catchment suitability and local design standards; Q alone does not give the total flood volume. **Yaad rakho:** Write units before numbers. --- ## M2 · Channel discharge: why Q = area × velocity Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--channel-flow/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/channel-flow M2 PPT pp 73–126 · syllabus units 1–2 **Source of the calculations.** M2 PDF p 100 prints Q = A × V in the desilting discussion. It supplies no drain dimensions or worked numerical. All three numerical scenarios below were authored for understanding, not recovered from exam papers. **Definition.** Discharge is the volume of water passing a cross-section per unit time. For a known flowing cross-sectional area and average velocity, Q = Av. **Simple meaning.** Cross-section mein kitna area hai × paani kitni speed se jaa raha hai. $$ Q=A_{flow}\,v $$ Aflow is the wet cross-sectional area in m²; v is average velocity in m/s. Multiplying m² by m/s gives m³/s. This A is different from the catchment area used in the rational method. ### Illustrative calculation (not a PYQ). Water flows through a rectangular drain 2 m wide and 1.5 m deep at an average velocity of 0.8 m/s. Find discharge. #### Answer ## Given Width=2 m; flowing depth=1.5 m; v=0.8 m/s. ## To find Q. ## Formula and why $$ A_{flow}=\text{width}\times\text{depth},\quad Q=A_{flow}v $$ The cross-section is rectangular, so width times flowing depth gives wet area. ## Step-by-step solution #### Step 1. Find area $$ A_{flow}=2\times1.5=3\text{ m}^2 $$ #### Step 2. Find discharge $$ Q=3\times0.8=2.4\text{ m}^3/\text{s} $$ **Final answer:** 2.4 m³/s. #### Practical interpretation · Sizing the flowing area At a discharge of 6 m³/s and a mean velocity of 1.5 m/s, a flowing area of 4 m² carries the stated flow because 1.5 × 4 = 6. This is the wetted flow area, not automatically the entire excavated channel area including freeboard. ### Illustrative calculation (not a PYQ). Silt reduces the same drain’s flowing depth from 1.5 m to 1 m. Assume the average velocity remains 0.8 m/s. Find the reduction in discharge. #### Answer ## Given Width=2 m; new depth=1 m; v=0.8 m/s; old Q=2.4 m³/s. ## To find New Q and reduction. ## Formula and why $$ Q=A_{flow}v $$ The fixed-velocity assumption isolates the effect of reduced cross-sectional area. ## Step-by-step solution #### Step 1. Find reduced area $$ A_{flow}=2\times1=2\text{ m}^2 $$ #### Step 2. Find reduced discharge $$ Q=2\times0.8=1.6\text{ m}^3/\text{s} $$ #### Step 3. Calculate loss $$ 2.4-1.6=0.8\text{ m}^3/\text{s} $$ #### Step 4. Express as percentage $$ (0.8/2.4)\times100=33.333\% $$ **Final answer:** Reduction =0.8 m³/s, or 33.3% under the assumption. #### Practical interpretation · Sizing the flowing area At a discharge of 6 m³/s and a mean velocity of 1.5 m/s, a flowing area of 4 m² carries the stated flow because 1.5 × 4 = 6. This is the wetted flow area, not automatically the entire excavated channel area including freeboard. ### Illustrative calculation (not a PYQ). A channel must carry 6 m³/s at an average velocity of 1.5 m/s. Find the required flowing cross-sectional area. #### Answer ## Given Q=6 m³/s; v=1.5 m/s. ## To find Aflow. ## Formula and why $$ Q=A_{flow}v\quad\Rightarrow\quad A_{flow}=Q/v $$ Divide both sides by velocity to isolate area. ## Step-by-step solution #### Step 1. Substitute the known values $$ A_{flow}=6/1.5 $$ #### Step 2. Calculate and write units $$ A_{flow}=4\text{ m}^2 $$ **Final answer:** Required flowing area =4 m², under the stated average velocity. #### Practical interpretation · Sizing the flowing area At a discharge of 6 m³/s and a mean velocity of 1.5 m/s, a flowing area of 4 m² carries the stated flow because 1.5 × 4 = 6. This is the wetted flow area, not automatically the entire excavated channel area including freeboard. Desilting may restore lost capacity, but actual velocity, downstream water level and channel stability also change. A calculation holding velocity fixed is a teaching comparison, not proof that desilting alone will prevent floods. **Yaad rakho:** Catchment area receives rain; channel area carries flow. --- ## M2 · Seven engineering and catchment measures for floods Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--engineering/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/engineering M2 PPT pp 73–126 · syllabus units 1–2 **Definition.** Structural flood measures change physical storage, conveyance or protection. Their effectiveness depends on design, operation, maintenance and the wider river basin. **Simple meaning.** Paani ko store karo, safe rasta do ya barrier lagao—but downstream ka risk bhi dekho. | Measure | How it helps | Important limitation | | --- | --- | --- | | Reservoirs | Store part of an incoming flood and release it in a controlled manner, reducing downstream peak flow. | Need available storage, safe operations and downstream warnings. | | Drainage improvement | Remove bottlenecks and maintain drains and outfalls. | A high tide or full receiving river can still block discharge. | | Embankments / levees | Form raised barriers to keep water within a channel. | Can breach or be overtopped; they do not eliminate the flood volume. | | Diversion channels | Route excess water to a designed bypass or storage area. | Must not transfer unacceptable risk to other communities. | | Channelisation | Modify channel course or section to improve conveyance. | Can accelerate flow and increase downstream risk or damage habitats. | | Watershed management | Use vegetation, contour bunds, trenches and suitable check dams to slow runoff and reduce erosion. | Performance depends on terrain and maintenance; cannot stop every extreme event. | | Channel improvement | Target widening, deepening, obstruction removal, bank protection and connected culverts. | Silt may return; engineering and environmental assessment are necessary. | ## Reservoir operation, in plain steps 1. Forecast inflow and check the available flood-storage space. 2. Operate according to approved rules and real-time conditions. 3. Coordinate safe releases and warn downstream authorities. 4. Monitor water levels and infrastructure continuously. ## Maintaining embankments Inspect for cracks, erosion, seepage and burrows; repair weaknesses and protect banks. Keep emergency plans for overtopping and breach. A false sense of complete safety can encourage more exposed development behind a barrier. ### Practice question. Explain any three structural flood mitigation measures. [3 practice marks] #### Answer 1. **Reservoir storage:** retain part of a flood inflow and release water in a controlled manner to lower the downstream peak. 2. **Embankments:** provide raised barriers that limit river overflow; inspection and maintenance reduce breach risk. 3. **Drainage and channel improvement:** remove blockages and bottlenecks and restore designed conveyance so excess water drains safely. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Store, convey, protect; inspect and maintain. --- ## M2 · Flood mapping, land-use control and floodplain zoning Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--zoning/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/zoning M2 PPT pp 73–126 · syllabus units 1–2 **Definition.** Floodplain zoning regulates the use of land according to flood hazard. It aims to keep vulnerable activities out of dangerous locations and preserve space for floodwater. **Simple meaning.** Map batata hai paani kahan aa sakta hai; zoning decide karti hai wahan kya banana theek hai. ## From map to decision 1. Collect past flood records, rainfall, river-flow data and elevation information. 2. Use hydrological/hydraulic analysis and remote sensing to identify likely depth, extent and flow conditions. 3. Overlay settlements, hospitals, roads, livelihoods and vulnerable groups. This adds exposure and vulnerability to a hazard map. 4. Set appropriate land-use conditions and protect floodways and storage areas. 5. Plan evacuation routes and shelter locations; update maps and enforce regulations. **Land-use control** is the broader planning process; **floodplain zoning** is its flood-risk-specific application. A flood map informs a decision; it does not remove water by itself. Parks or agriculture can be more suitable than permanent dense housing in some high-risk areas, subject to local conditions and safe use. ## What does a “100-year flood” mean? Under a stationary statistical model, an event with a 100-year return period has a 1% chance of being equalled or exceeded in any given year. It can occur in consecutive years. It does not promise 99 safe years. Flood-frequency estimates are uncertain and may change as climate, catchments or data change. $$ p=1/T;\quad T=100\Rightarrow p=0.01=1\% $$ ### Practice question. Explain floodplain zoning and its importance. [3 practice marks] #### Answer Floodplain zoning divides flood-prone land according to risk and regulates permitted development. 1. It limits exposure by restricting vulnerable settlements and critical facilities in high-risk zones. 2. It preserves natural drainage and floodwater storage, reducing obstruction and encroachment. 3. It supports safer growth, evacuation planning and lower future rescue and recovery costs. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Map the hazard; regulate the exposure. --- ## M2 · Flood impacts, benefits and safe management through the cycle Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--response/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/floods/response M2 PPT pp 73–126 · syllabus units 1–2 **Definition.** Flood management addresses immediate danger, long-term losses and natural floodplain processes. Beneficial seasonal flooding and destructive inundation are not the same outcome. **Simple meaning.** Natural flood pulse useful ho sakta hai; exposed city ka destructive flood alag outcome hai. | Loss category | Example | | --- | --- | | Human / social | Drowning, injuries, displacement, interrupted schooling and distress. | | Economic | Crop damage, lost wages, business shutdown and repair costs. | | Infrastructure | Damaged roads, drains, power and drinking-water systems. | | Environmental / health | Erosion, contamination, habitat damage and increased disease risk where sanitation fails. | ## Why some floods have benefits Seasonal flood pulses can deposit fertile sediment, recharge groundwater, sustain wetlands and support fish breeding. Benefits depend on water quality, timing and magnitude. Floodwater is not automatically clean; it can spread sewage and chemicals. Do not write that all floods “purify water”. ## Before, during and after 1. **Before:** maintain drainage, check warnings, identify high ground and safe shelters, prepare medicines and essentials, waterproof documents and plan accessible evacuation. Move early when authorities advise. 2. **During:** use safe evacuation routes; avoid walking or driving through floodwater, underpasses and damaged electrical areas. Do not delay safe evacuation to save valuables. 3. **After:** return only when cleared, have damaged structures and electrical systems checked, use safe drinking water, discard contaminated food and support cleanup and disease surveillance. If a building has an upper floor, moving upwards may be an emergency refuge when escape is unsafe; it is not a substitute for early authorised evacuation. Never enter a closed attic without an escape route or assume a building is structurally safe. ### Practice question. State two beneficial and two harmful effects of floods. [2 practice marks] #### Answer **Benefits:** deposition of nutrient-rich sediment can improve floodplain fertility; infiltration can recharge groundwater and wetlands. **Harm:** fast or deep floodwater can cause deaths and property damage; contaminated water and disrupted services can create health and livelihood losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Life first; do not enter floodwater. --- ## M2 · Cyclone formation, eye and eyewall Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/cyclones--formation/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/cyclones/formation M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** A cyclone is an atmospheric circulation around a low-pressure centre. A tropical cyclone is an organised rotating storm over warm tropical or subtropical waters, with strong winds, rain and potentially storm surge. **Simple meaning.** Warm sea fuel deta hai; low pressure hawa kheenchta hai; rotation storm ko organise karti hai. Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Warm moist air feeds the storm. The eyewall surrounds the relatively calm eye in a mature intense tropical cyclone. 1. Warm ocean water supplies moisture and energy by evaporation. Typical favourable sea-surface temperatures are around 26–27°C or higher over adequate depth. 2. Warm moist air rises; condensation releases latent heat, supporting further rising motion. 3. Air flows towards the low-pressure centre. Earth’s rotation helps organise the circulation; systems do not usually form right at the equator. 4. With favourable conditions such as sufficient moisture and limited disruptive vertical wind shear, the system organises and intensifies. 5. A mature system may develop an eye surrounded by an eyewall. It weakens when it loses favourable ocean energy or encounters hostile atmospheric conditions. | Part | Meaning | | --- | --- | | Eye | Relatively calm central region with descending air in a well-developed cyclone. | | Eyewall | Ring of intense convection; strongest winds and heavy rainfall are commonly found here. | | Rainbands | Spiral bands of clouds and rain around the centre. | | Track | The path followed by the storm; forecasts have uncertainty. | ### Practice question. Explain the formation of a tropical cyclone. [3 practice marks] #### Answer 1. Warm ocean water supplies moist air; the air rises and condensation releases heat. 2. The low-pressure system draws in more air, which rotates under the Coriolis effect. 3. When atmospheric conditions remain favourable, organised thunderstorms intensify around the centre, forming a mature cyclone that may contain an eye and eyewall. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Warm water → moist rising air → organised low-pressure circulation. --- ## M2 · Cyclone names, types and the three main hazards Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/cyclones--hazards/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/cyclones/hazards M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** The principal tropical-cyclone hazards are strong winds, heavy rainfall and storm surge. Their combined effects can create cascading damage. **Simple meaning.** Cyclone ka damage sirf hawa nahi: wind + rain + sea water. | Hazard | Mechanism | Damage | | --- | --- | --- | | Wind | Strong pressure gradients drive fast winds. | Roof damage, flying debris, fallen trees and power lines. | | Rain | Intense rainfall produces runoff. | River/urban flooding and landslides. | | Storm surge | Wind pushes sea water towards shore; low pressure adds a smaller contribution. | Coastal inundation, saltwater intrusion and erosion. | **Storm tide** combines astronomical tide and storm surge; waves and river flooding can compound impacts further. A tsunami is a different process, usually generated by sudden displacement of the water column. ## Names and classifications without mixing systems Hurricane is the regional name used in the Atlantic and northeast Pacific; typhoon in the northwest Pacific; tropical cyclone or cyclonic storm is used in the Indian Ocean context. A tornado is a small-scale rotating column connected to a thunderstorm and is **not** a South American synonym for tropical cyclone. A mesocyclone is a rotating thunderstorm updraft. Polar and extratropical cyclones occur in different environments and should not be described as identical warm-ocean systems. In the Northern Hemisphere, cyclonic circulation is anticlockwise; in the Southern Hemisphere, clockwise. India’s Bay of Bengal and Arabian Sea coasts both face serious cyclone risk. Not every Indian cyclone is moderate. ## Wind categories need their own units and definitions The PPT shows both a Saffir–Simpson hurricane image and a gust-based five-category table. They are not interchangeable with IMD’s North Indian Ocean classification. Use the named system supplied in a question; do not mix gust speed with sustained wind speed. The key M2 concepts are formation, hazards, warnings and mitigation. ### Practice question. Describe the three major destructive effects of cyclones. [3 practice marks] #### Answer 1. **Strong winds:** damage roofs and lifelines and produce dangerous flying debris. 2. **Heavy rainfall:** causes river and urban flooding and can destabilise slopes. 3. **Storm surge:** raises coastal water levels, inundates settlements and contaminates freshwater and farmland with salt water. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Wind, rain, surge. --- ## M2 · IMD’s four warning stages and protective actions Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/cyclones--warnings/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/cyclones/warnings M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** Cyclone warnings provide advance information on likely coastal effects, allowing authorities and communities to prepare, evacuate and protect essential services. **Simple meaning.** 72 → 48 → 24 → 12; last wala outlook bhi landfall se pehle aata hai. | Stage | Usual lead time in the lecture | What it supports | | --- | --- | --- | | Pre-cyclone watch | About 72 hours before adverse weather | Initial readiness and review of plans. | | Cyclone alert | About 48 hours before adverse weather | Mobilise resources, shelters and evacuation arrangements. | | Cyclone warning | About 24 hours before adverse weather | Implement protective action based on the latest official advice. | | Post-landfall outlook | About 12 hours before landfall | Prepare inland areas for expected track and adverse weather after landfall. | The name **post-landfall outlook** describes the period forecast, not the time at which it is issued. Its 12-hour lead is before landfall. Forecasts can be updated as the storm develops. Cyclones can be forecast days ahead, with uncertainty; the claim that advance forecasts are impossible is incorrect. ## Before impact Follow official warnings; move from unsafe coastal areas to designated shelters when instructed. Arrange transport for people needing assistance, carry essential medicines and documents, secure loose objects, and prepare backup lighting and communication. Fishermen should follow official sea warnings. ## During and after Remain in a safe shelter away from glass, avoid travel and floodwater, and follow official instructions. A temporary calm may be the eye; it does not mean the storm is over. Wait for official clearance before returning; avoid damaged structures, lines and contaminated water. ### Practice question. List the four stages of cyclone warning with their lead times. [3 practice marks] #### Answer 1. Pre-cyclone watch: about 72 hours before adverse weather. 2. Cyclone alert: about 48 hours before adverse weather. 3. Cyclone warning: about 24 hours before adverse weather. 4. Post-landfall outlook: about 12 hours before landfall, describing likely inland effects after crossing. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Watch → alert → warning → outlook. --- ## M2 · Cyclone risk reduction: shelter, construction and nature Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/read/cyclones--mitigation/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/read/cyclones/mitigation M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** Cyclone mitigation reduces exposure and structural vulnerability, while preparedness makes warnings actionable. **Simple meaning.** Shelter sirf building nahi—us tak safe pahunchne ka plan bhi chahiye. | Measure | How it helps | | --- | --- | | Hazard and risk mapping | Identify zones exposed to wind, surge and flooding; include people and lifelines. | | Land-use planning | Keep critical facilities and vulnerable development away from mapped dangerous locations. | | Engineered construction and retrofitting | Provide appropriate connections and wind-resistant design; qualified engineers assess existing structures. | | Accessible cyclone shelters | Provide protected refuge with safe approaches, water, sanitation and arrangements for different needs. | | Flood and drainage management | Address rain flooding and coastal inundation alongside wind damage. | | Mangroves and vegetation | Can reduce wave energy and erosion in suitable locations; cannot guarantee protection against every surge. | | Community participation | Map local resources, practise evacuation and support households needing assistance. | Do not use a generic roof-slope instruction as a complete cyclone design rule. Roof shape, connections, site and applicable standards all matter. Vegetation supplements engineered and organisational protection; it does not replace evacuation from a dangerous coast. ### Practice question. Explain three cyclone mitigation and preparedness measures. [3 practice marks] #### Answer 1. **Resilient construction and land use:** build to suitable wind-resistant standards and avoid high-risk surge zones. 2. **Shelters and evacuation:** provide accessible shelters, safe roads and rehearsed transport arrangements. 3. **Warnings and community readiness:** communicate official forecasts clearly and train volunteers and residents to act in time. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Map risk, strengthen structures, make evacuation possible. --- ## M2 · The essential terms in one place Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/formulas/facts--definitions/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/formulas/facts/definitions Read the meaning, then use the worked examples | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | | Term | Meaning | | --- | --- | | Exposure | People and assets located where a hazard may occur. | | Capacity | Skills, resources and arrangements available to manage risk. | | Resilience | Ability to withstand, adapt and recover while maintaining/restoring essential functions. | | Preparedness | Readiness to act effectively; includes plans, training, warnings and resources. | | Response | Immediate and short-term actions to protect people and address urgent needs. | | Recovery | Restoring services, housing and livelihoods and reducing future risk. | | GIS | A system for working with geographically referenced information. | | Remote sensing | Obtaining information from a distance, for example using satellite sensors. | **Yaad rakho:** Hazard = threat; exposure = who is there; vulnerability = why harm is likely; capacity = what helps. --- ## M2 · Lecture formulas and optional calculation reference Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/formulas/facts--formula-sheet/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/formulas/facts/formula-sheet Read the meaning, then use the worked examples These are formulas discussed or explained alongside the lectures, not a list of confirmed numerical questions. The approximate energy relation is a USGS extension. The available 12 TEE papers contain no numerical substitution questions. ## Magnitude difference $$ \frac{A_2}{A_1}=10^{M_2-M_1} $$ Compares seismic-wave amplitudes on a comparable logarithmic scale; it is not the energy ratio. [Open the complete explanation and solved examples →](https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--logarithms/) ## Approximate energy ratio $$ \frac{E_2}{E_1}\approx10^{1.5(M_2-M_1)} $$ Uses the common approximate magnitude–energy relation. [Open the complete explanation and solved examples →](https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--logarithms/) ## Seismic moment $$ M_0=\mu A D $$ Rigidity × rupture area × average slip. Use compatible SI units to obtain N·m. [Open the complete explanation and solved examples →](https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--moment/) ## Moment magnitude, SI $$ M_w=\frac{2}{3}(\log_{10}M_0-9.1) $$ Here the numerical value of M₀ is in N·m. Do not substitute dyne·cm into this version. [Open the complete explanation and solved examples →](https://deep-learning-study-room.vercel.app/read/dm/m2/read/earthquakes--moment/) ## Rational runoff method $$ Q=0.27778CIA $$ Q in m³/s, rainfall intensity I in mm/h, catchment area A in km², dimensionless C. It estimates peak runoff under the method’s assumptions. [Open the complete explanation and solved examples →](https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--runoff/) ## Channel discharge $$ Q=A_c v $$ Flow cross-section A\_c in m² × mean velocity v in m/s gives Q in m³/s. A\_c is not the catchment area above. [Open the complete explanation and solved examples →](https://deep-learning-study-room.vercel.app/read/dm/m2/read/floods--channel-flow/) ## Conversions used in the calculations $$ 1\,\mathrm{km}=1000\,\mathrm m,\qquad1\,\mathrm{km^2}=10^6\,\mathrm{m^2} $$ $$ 1\,\mathrm{ha}=10^4\,\mathrm{m^2},\qquad1\,\mathrm h=3600\,\mathrm s $$ $$ 1\,\mathrm{N\,m}=10^7\,\mathrm{dyne\,cm} $$ **Yaad rakho:** Pehle units match; phir formula; phir calculation. Same A symbol ka meaning har formula mein same nahi hota. --- ## M2 · Definitions and the cycle Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/papers/m2-questions--basics/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/papers/m2-questions/basics 2-mark and 3-mark practice · full answers below each question ### Practice question. Differentiate between a hazard and a disaster with an example. [2 practice marks] #### Answer A **hazard** has the potential to cause harm, whereas a **disaster** is the serious disruption produced when that hazard affects exposed and vulnerable people or assets. A river rising is a flood hazard; widespread inundation that disrupts homes, hospitals and livelihoods is a flood disaster. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Practice question. Explain vulnerability and capacity with one example each. [2 practice marks] #### Answer **Vulnerability** is a condition that increases susceptibility to a hazard; an unreinforced building is vulnerable to earthquake damage. **Capacity** is the combination of skills and resources available to manage risk; trained rescue teams and safe shelters increase a community’s capacity. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Practice question. Explain the disaster management cycle with examples. [3 practice marks] #### Answer The cycle is a continuous sequence of risk reduction, readiness, emergency action and recovery. 1. **Prevention and mitigation:** avoid unsafe development and strengthen vulnerable buildings. 2. **Preparedness:** arrange warnings, evacuation routes, drills and emergency supplies. 3. **Response:** rescue people, provide urgent care and distribute essentials. 4. **Recovery:** restore services and livelihoods; rehabilitation and reconstruction should build back better. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## M2 · Principles and ethics Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/papers/m2-questions--ethics/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/papers/m2-questions/ethics 2-mark and 3-mark practice · full answers below each question ### Practice question. State and explain three basic principles of disaster management. [3 practice marks] #### Answer 1. **Comprehensive approach:** plan for multiple hazards and cover mitigation, preparedness, response and recovery. 2. **Coordination:** clearly allocate agency responsibilities and share reliable information to avoid delays or duplicated work. 3. **Inclusion:** involve communities and provide accessible warnings, shelters and assistance according to need. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. ### Practice question. State and explain any three general ethical principles of disaster management. [3 practice marks] #### Answer 1. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 2. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 3. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. ### Practice question. Explain ethical principles applicable before a disaster. [3 practice marks] #### Answer 1. **Information and participation:** provide reliable, accessible risk information and include residents in planning. 2. **Prevention and training:** implement safety measures and conduct drills in schools, workplaces and public places. 3. **Equitable protection:** make special arrangements for people with limited mobility, children and other at-risk groups, while protecting dignity and access to remedies. #### Illustrative application · Inclusive planning before the warning Before the cyclone season, a coastal village identifies residents who need evacuation assistance, checks accessible transport and shelter access, explains warnings in local languages, and invites residents to report gaps. These actions apply participation, reliable information and equitable protection before an emergency occurs. ### Practice question. Explain three ethical duties during disaster response. [3 practice marks] #### Answer 1. **Impartial relief:** distribute food, water and shelter according to assessed needs without discrimination. 2. **Respect for dignity:** protect privacy, personal safety, family unity and freedom from abuse. 3. **Accessible and safe assistance:** communicate clearly, support those needing help to evacuate, and protect rescue workers with equipment and training. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. ### Practice question. Explain the role of engineers in disaster management. [3 practice marks] #### Answer 1. **Before impact:** design resilient buildings and lifelines, map hazards and maintain warning and backup systems. 2. **During response:** assess infrastructure damage, restore emergency communications and support safe rescue logistics. 3. **During recovery:** restore services and rebuild to safer standards while reviewing the failures that increased losses. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. --- ## M2 · Institutions and warnings Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/papers/m2-questions--institutions/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/papers/m2-questions/institutions 2-mark and 3-mark practice · full answers below each question ### Practice question. Differentiate between NDMA and NDRF. [2 practice marks] #### Answer **NDMA** is the apex disaster management authority that lays down policies, plans and guidelines and coordinates their implementation. **NDRF** is a specialised response force that carries out operations such as search and rescue. NDMA’s role is strategic and coordinating; NDRF’s role is primarily operational. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. ### Practice question. Explain three functions of NDMA. [3 practice marks] #### Answer 1. **Policy and planning:** establish national disaster management policies and the national planning framework. 2. **Guidelines:** guide state authorities and ministries in preparing plans and incorporating prevention and mitigation into development. 3. **Coordination and capacity:** coordinate implementation, promote mitigation and preparedness and support institutional capacity building. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. ### Practice question. Why can an accurate warning fail to prevent a disaster? [3 practice marks] #### Answer 1. It may not reach everyone because of power loss, network failure or inaccessible language. 2. People may not understand or trust it if it lacks a clear source and instructions. 3. Even informed people may lack transport, accessible shelters or enough time to act. Therefore forecasting must be combined with communication and preparedness. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. --- ## M2 · Earthquake questions Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/papers/m2-questions--earthquakes/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/papers/m2-questions/earthquakes 2-mark and 3-mark practice · full answers below each question ### Practice question. Explain the cause of a tectonic earthquake and distinguish focus from epicentre. [3 practice marks] #### Answer Tectonic movement builds stress in rocks locked along a fault. When resistance is overcome, sudden slip releases stored elastic energy as seismic waves. The **focus** is the point within the Earth where rupture starts; the **epicentre** is the point on the surface directly above it. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. ### Practice question. Differentiate between interplate and intraplate earthquakes. [2 practice marks] #### Answer **Interplate earthquakes** occur at boundaries where tectonic plates interact. **Intraplate earthquakes** occur within a plate, away from its boundary, often on reactivated faults. Both can be damaging; location within a plate does not imply zero seismic risk. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. ### Practice question. Compare P waves and S waves. [3 practice marks] #### Answer | P waves | S waves | | --- | --- | | Faster; arrive first. | Slower; arrive after P. | | Longitudinal compression and expansion. | Transverse shear motion. | | Travel through solids and fluids. | Do not travel through liquids as shear waves. | #### Illustrative application · Reading two arrivals A station records a P arrival before an S arrival because P waves travel faster. The growing arrival-time gap with distance can help locate the source using travel-time information. A gap alone, without an appropriate velocity model, is not a universal kilometre conversion. ### Practice question. Distinguish earthquake magnitude from earthquake intensity. [3 practice marks] #### Answer **Magnitude** expresses the size of an earthquake from instrument-based measurements, for example moment magnitude. **Intensity** expresses its observed effects at a particular site, for example Modified Mercalli I–XII. A given event has an estimated magnitude on a specified scale, but intensities vary among sites because distance, soil and construction differ. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Practice question. Explain soil liquefaction and its effects. [3 practice marks] #### Answer Liquefaction is a loss of strength in susceptible water-saturated loose soil during strong shaking. Rising pore-water pressure reduces contact forces between soil grains, causing the soil to behave temporarily like a fluid. It can cause settlement, tilting of buildings, lateral spreading and damage to buried pipes. #### Illustrative application · Loose saturated ground Imagine two sites experiencing comparable shaking: one rests on competent rock and the other on loose, saturated sand. Excess pore-water pressure can reduce the sand’s strength, allowing a building to settle or tilt. The hazard depends on ground conditions as well as the earthquake. ### Practice question. Explain three earthquake mitigation measures. [3 practice marks] #### Answer 1. **Safe construction and retrofitting:** design and strengthen structures to resist earthquake forces and reduce collapse. 2. **Non-structural safety:** anchor shelves and equipment and protect utilities to reduce falling-object and fire hazards. 3. **Planning and drills:** prepare communication, evacuation and response arrangements so people and agencies act safely. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## M2 · Flood questions Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/papers/m2-questions--floods/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/papers/m2-questions/floods 2-mark and 3-mark practice · full answers below each question ### Practice question. Differentiate between slow-onset floods and flash floods. [3 practice marks] #### Answer | Slow-onset | Flash | | --- | --- | | Gradual rise, often from prolonged basin rainfall. | Sudden rise, commonly after intense rainfall or dam failure. | | Usually more time for warning and evacuation. | Often little warning time. | | Long inundation disrupts crops and livelihoods. | Fast, debris-laden flow can cause immediate destruction. | #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Practice question. Explain three causes of urban flooding and corresponding measures. [3 practice marks] #### Answer 1. Impervious roofs and roads increase runoff; permeable surfaces and rain gardens can reduce and delay it. 2. Blocked or inadequate drains cannot carry peak flows; cleaning, capacity upgrades and connected outlets improve drainage. 3. Encroachment on wetlands and floodplains removes storage and exposes settlements; protection of these areas and risk-based land-use control reduce losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Practice question. Explain any three structural flood mitigation measures. [3 practice marks] #### Answer 1. **Reservoir storage:** retain part of a flood inflow and release water in a controlled manner to lower the downstream peak. 2. **Embankments:** provide raised barriers that limit river overflow; inspection and maintenance reduce breach risk. 3. **Drainage and channel improvement:** remove blockages and bottlenecks and restore designed conveyance so excess water drains safely. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Practice question. Explain floodplain zoning and its importance. [3 practice marks] #### Answer Floodplain zoning divides flood-prone land according to risk and regulates permitted development. 1. It limits exposure by restricting vulnerable settlements and critical facilities in high-risk zones. 2. It preserves natural drainage and floodwater storage, reducing obstruction and encroachment. 3. It supports safer growth, evacuation planning and lower future rescue and recovery costs. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Practice question. State two beneficial and two harmful effects of floods. [2 practice marks] #### Answer **Benefits:** deposition of nutrient-rich sediment can improve floodplain fertility; infiltration can recharge groundwater and wetlands. **Harm:** fast or deep floodwater can cause deaths and property damage; contaminated water and disrupted services can create health and livelihood losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## M2 · Cyclone questions Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/papers/m2-questions--cyclones/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/papers/m2-questions/cyclones 2-mark and 3-mark practice · full answers below each question ### Practice question. Explain the formation of a tropical cyclone. [3 practice marks] #### Answer 1. Warm ocean water supplies moist air; the air rises and condensation releases heat. 2. The low-pressure system draws in more air, which rotates under the Coriolis effect. 3. When atmospheric conditions remain favourable, organised thunderstorms intensify around the centre, forming a mature cyclone that may contain an eye and eyewall. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Practice question. Describe the three major destructive effects of cyclones. [3 practice marks] #### Answer 1. **Strong winds:** damage roofs and lifelines and produce dangerous flying debris. 2. **Heavy rainfall:** causes river and urban flooding and can destabilise slopes. 3. **Storm surge:** raises coastal water levels, inundates settlements and contaminates freshwater and farmland with salt water. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Practice question. List the four stages of cyclone warning with their lead times. [3 practice marks] #### Answer 1. Pre-cyclone watch: about 72 hours before adverse weather. 2. Cyclone alert: about 48 hours before adverse weather. 3. Cyclone warning: about 24 hours before adverse weather. 4. Post-landfall outlook: about 12 hours before landfall, describing likely inland effects after crossing. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Practice question. Explain three cyclone mitigation and preparedness measures. [3 practice marks] #### Answer 1. **Resilient construction and land use:** build to suitable wind-resistant standards and avoid high-risk surge zones. 2. **Shelters and evacuation:** provide accessible shelters, safe roads and rehearsed transport arrangements. 3. **Warnings and community readiness:** communicate official forecasts clearly and train volunteers and residents to act in time. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## M2 · M2 mock A · theory and diagrams Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/mocks/m2-mocks--paper-a/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/mocks/m2-mocks/paper-a Confirmed 2 + 2 + any two of 3, 3, 3 = 10 marks **Pattern:** Q1(a) and Q1(b) are compulsory. Attempt any two of Q2, Q3 and Q4. Printed marks = 13; attempted marks = 10. These are newly written practice questions. Answers are directly below each question. ### Q1(a). Differentiate between hazard and disaster using a flood example. [2 practice marks] #### Answer A **hazard** has the potential to cause harm, whereas a **disaster** is the serious disruption produced when that hazard affects exposed and vulnerable people or assets. A river rising is a flood hazard; widespread inundation that disrupts homes, hospitals and livelihoods is a flood disaster. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Q1(b). Distinguish NDMA from NDRF. [2 practice marks] #### Answer **NDMA** is the apex disaster management authority that lays down policies, plans and guidelines and coordinates their implementation. **NDRF** is a specialised response force that carries out operations such as search and rescue. NDMA’s role is strategic and coordinating; NDRF’s role is primarily operational. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. ### Q2. Explain three ethical duties during disaster response. [3 practice marks] #### Answer 1. **Humanitarian assistance.** Protect life and provide essentials according to need. For example, distribute safe drinking water to communities whose supply has failed. 2. **Information and participation.** Give accurate, accessible updates and involve affected people. Explain shelter locations in local languages and listen to residents about missing people. 3. **Responsible evacuation.** Use safe routes, transport and accessible shelters; explain the danger and preserve dignity. Any compulsory evacuation must follow lawful authority and necessity. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. ### Q3. Explain P waves, S waves and surface waves with a labelled sketch. [3 practice marks] #### Answer Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. P: parallel motion. S: transverse motion. Surface: motion concentrated near the surface. 1. **P waves.** Compressional body waves; particle motion is parallel to propagation and they travel through solids and fluids. 2. **S waves.** Shear body waves; particle motion is transverse and they do not pass through fluids as shear waves. 3. **Surface waves.** Travel along the surface; Love waves involve horizontal shear and Rayleigh waves involve rolling motion. They can produce damaging shaking. #### Illustrative application · Reading two arrivals A station records a P arrival before an S arrival because P waves travel faster. The growing arrival-time gap with distance can help locate the source using travel-time information. A gap alone, without an appropriate velocity model, is not a universal kilometre conversion. ### Q4. Explain three measures for reducing urban flood risk. [3 practice marks] #### Answer 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## M2 · M2 mock B · distinctions and applications Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/mocks/m2-mocks--paper-b/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/mocks/m2-mocks/paper-b Confirmed 2 + 2 + any two of 3, 3, 3 = 10 marks **Pattern:** Q1(a) and Q1(b) are compulsory. Attempt any two of Q2, Q3 and Q4. Printed marks = 13; attempted marks = 10. These are newly written practice questions. Answers are directly below each question. ### Q1(a). Differentiate magnitude from intensity of an earthquake. [2 practice marks] #### Answer **Magnitude** describes earthquake source size using a numerical scale. **Intensity** describes observed shaking/effects at a particular place. One earthquake has a reported magnitude for a specified scale, while intensity varies with distance, ground conditions and building vulnerability. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Q1(b). State two reasons why warning communication may fail. [2 practice marks] #### Answer 1. **Failure to reach or be understood.** Power/network loss, inaccessible language or unclear signals can exclude people. 2. **Failure to act.** People may lack trust, transport, accessible shelters or enough time even after receiving the message. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. ### Q2. Explain the four stages of cyclone warning used by IMD. [3 practice marks] #### Answer **Definition.** Cyclone warnings provide advance information on likely coastal effects, allowing authorities and communities to prepare, evacuate and protect essential services. | Stage | Usual lead time in the lecture | What it supports | | --- | --- | --- | | Pre-cyclone watch | About 72 hours before adverse weather | Initial readiness and review of plans. | | Cyclone alert | About 48 hours before adverse weather | Mobilise resources, shelters and evacuation arrangements. | | Cyclone warning | About 24 hours before adverse weather | Implement protective action based on the latest official advice. | | Post-landfall outlook | About 12 hours before landfall | Prepare inland areas for expected track and adverse weather after landfall. | The name **post-landfall outlook** describes the period forecast, not the time at which it is issued. Its 12-hour lead is before landfall. Forecasts can be updated as the storm develops. Cyclones can be forecast days ahead, with uncertainty; the claim that advance forecasts are impossible is incorrect. ## Before impact Follow official warnings; move from unsafe coastal areas to designated shelters when instructed. Arrange transport for people needing assistance, carry essential medicines and documents, secure loose objects, and prepare backup lighting and communication. Fishermen should follow official sea warnings. ## During and after Remain in a safe shelter away from glass, avoid travel and floodwater, and follow official instructions. A temporary calm may be the eye; it does not mean the storm is over. Wait for official clearance before returning; avoid damaged structures, lines and contaminated water. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Q3. Explain three ways in which urbanisation can increase flood risk. [3 practice marks] #### Answer 1. **Impervious surfaces.** Roofs and paving reduce infiltration and produce faster runoff. 2. **Lost storage and blocked flow.** Wetland loss, encroachment and blocked drains reduce space and conveyance for water. 3. **Increased exposure.** More people, utilities and buildings occupy locations that can flood. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Q4. Explain prevention, mitigation and preparedness with one example each. [3 practice marks] #### Answer | Term | Meaning | Example | | --- | --- | --- | | Prevention | Avoid a risk where possible. | Do not site a new school in a floodway. | | Mitigation | Reduce possible losses. | Strengthen an existing building. | | Preparedness | Build readiness to act. | Practise evacuation and ready shelters. | #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## M2 · M2 mock C · ethics, hazards and management Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/mocks/m2-mocks--paper-c/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/mocks/m2-mocks/paper-c Confirmed 2 + 2 + any two of 3, 3, 3 = 10 marks **Pattern:** Q1(a) and Q1(b) are compulsory. Attempt any two of Q2, Q3 and Q4. Printed marks = 13; attempted marks = 10. These are newly written practice questions. Answers are directly below each question. ### Q1(a). Explain two ethical principles with examples. [2 practice marks] #### Answer 1. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 2. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. ### Q1(b). Name two cyclone hazards and explain how they cause damage. [2 practice marks] #### Answer 1. **Strong wind.** Damages roofs, trees and utilities and produces flying debris. 2. **Storm surge.** Raises coastal water levels and can inundate low-lying settlements. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Q2. Explain three reasons why urbanisation can increase flood risk. [3 practice marks] #### Answer 1. Impervious roofs and roads increase runoff; permeable surfaces and rain gardens can reduce and delay it. 2. Blocked or inadequate drains cannot carry peak flows; cleaning, capacity upgrades and connected outlets improve drainage. 3. Encroachment on wetlands and floodplains removes storage and exposes settlements; protection of these areas and risk-based land-use control reduce losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Q3. Distinguish earthquake magnitude from intensity with a suitable example. [3 practice marks] #### Answer **Magnitude** expresses the size of an earthquake from instrument-based measurements, for example moment magnitude. **Intensity** expresses its observed effects at a particular site, for example Modified Mercalli I–XII. A given event has an estimated magnitude on a specified scale, but intensities vary among sites because distance, soil and construction differ. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Q4. A coastal council receives a cyclone warning. Explain three actions that turn the warning into protection. [3 practice marks] #### Answer 1. **Communicate clearly.** Send official, location-specific action messages through accessible channels. 2. **Arrange movement.** Provide transport and assistance along safe routes before conditions deteriorate. 3. **Prepare shelters.** Open accessible shelters, provide essentials and maintain accountability. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## M2 · Principles, institutions and warnings Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/revision/revision-m2--core/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/revision/revision-m2/core Short revision after the complete lessons ## Definitions | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | ## Do not mix these roles | Term | Remember | | --- | --- | | NDMA | National authority: policy, plans, guidelines and coordination. | | SDMA / DDMA | State and district planning, coordination and implementation arrangements. | | NDRF | Specialised response force. | | NIDM | Training, research and capacity building. | | IMD / CWC / INCOIS | Technical information for weather/cyclones, floods and tsunamis respectively. | ## General ethical principles Solidarity, Joint responsibility, Non-discrimination, Humanity, Impartiality, Neutrality, Co-operation, Territorial sovereignty, Prevention, Role of media. ## EWS Know risk → monitor/forecast → communicate → act. The lecture groups these slightly differently and highlights continuous evaluation. An accurate forecast without accessible warning and action capacity is insufficient. **Yaad rakho:** A = Authority, F = Force, I = Institute. Warning ka last step action hai. --- ## M2 · Earthquakes, floods and cyclones Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/revision/revision-m2--hazards/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/revision/revision-m2/hazards Short revision after the complete lessons | Topic | Recall | | --- | --- | | Earthquake cause | Fault slip releases stored strain; waves transmit energy. | | Focus / epicentre | Origin within Earth / surface point above it. | | Waves | P parallel compression; S transverse shear; Love/Rayleigh surface waves. | | Magnitude / intensity | Source size / local observed effects. | | Magnitude +1 | Amplitude ×10; approximate energy ×31.6. | | Flood mechanisms | Too much water for available storage/conveyance; exposure and vulnerability determine losses. | | Urban flood | Impervious cover, blocked/constrained drainage and loss of natural storage. | | Cyclone | Warm ocean, moisture, rotation and suitable atmospheric conditions; eye, eyewall and rainbands. | | Cyclone hazards | Wind + surge + rain; a calm eye is not the all-clear. | | IMD stages | Pre-cyclone watch 72 h, alert 48 h, warning 24 h before expected adverse weather; post-landfall outlook 12 h before expected landfall. | ## Measures: always include the reason Earthquake: safe construction and retrofitting reduce collapse. Flood: drainage and storage reduce water accumulation; zoning reduces exposure. Cyclone: warnings plus accessible shelters and evacuation reduce life risk; resilient construction reduces damage. [Open the complete calculation formula sheet →](https://deep-learning-study-room.vercel.app/read/dm/m2/formulas/facts--formula-sheet/) --- ## M2 · Write answers in a reliable order Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/revision/revision-m2--writing/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/revision/revision-m2/writing Short revision after the complete lessons 1. **Definition:** one precise sentence, then the requested example. 2. **Difference:** use a comparison table with the same basis in each row. 3. **Measures:** number the points; state the action and explain how it reduces harm. 4. **Diagram:** add a title, labels, arrows and one sentence explaining the process. 5. **Numerical:** Given → To find → Formula and why → unit conversions → separate numbered calculations → answer with units. 6. **Case:** event → cause/vulnerability → impacts → response → lessons. If you blank, first write the exact terms named in the question and the headings it asks for. Then develop one correct explained point at a time. For the M2 choice, read all three 3-mark options before choosing two; attempt both compulsory 2-mark parts. --- ## M2 · M2 portion and complete TEE coverage Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/about/sources--portion/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/about/sources/portion Source details are kept outside the reading flow M2 uses **M2 PPT 2026-27 - T1.pdf** as the supplied portion source, with short prerequisites from M1. Your confirmed M2 pattern is 2 + 2 compulsory and any two of three 3-mark questions. TEE follows **Syllabus\_Disaster Management.pdf**, with M1, M2 and matched library papers. | Source coverage | Reading chapters | | --- | --- | | M2 PDF pp 1–14 | Principles and ethics | | M2 pp 15–18 | Institutions, policy and guideline themes | | M2 pp 19–34 | Early warning systems | | M2 pp 35–72 | Earthquakes | | M2 pp 73–126 | Floods | | M2 pp 127–141 | Cyclones | | Syllabus unit 1 | Basics; classification/risk; all listed natural and human-induced hazards | | Syllabus unit 2 | Earthquakes including India; floods; drought; landslide; cases | | Syllabus unit 3 | Principles/cycle; policy and institutions; warning systems | | Syllabus unit 4 | Training, awareness, drills, GIS and remote sensing | | Syllabus unit 5 | Case-study answer book and applied PYQs | Page numbers above are PDF pages, not individual slide numbers. The syllabus states no prerequisite and allocates 45 teaching hours across the five units. All named syllabus topic groups have dedicated coverage; individual examples go beyond the minimum wording where needed to explain a paper question. --- ## M2 · Sources and corrections used in these notes Canonical: https://deep-learning-study-room.vercel.app/read/dm/m2/about/sources--references/ Reader: https://deep-learning-study-room.vercel.app/dm/#m2/about/sources/references Source details are kept outside the reading flow Teaching material: the supplied 141-page M2 PDF, 118-page M1 PDF and two-page syllabus. Exam material: 59 recovered DM PDFs from the user-provided library archive, reconciled into 12 distinct sittings; answer schemes were checked for the recent four sittings. Authored practice is labelled separately from actual papers. ## Corrections that affect answers - Love waves are surface waves; transform boundaries are different from divergent boundaries. - Seismic moment has units; moment magnitude is logarithmic. Unit conversions are shown before calculation. - The rational-method coefficient changes with the selected area and time units. - Earthquake early warning is not exact advance earthquake prediction. - Cyclone warnings can be issued in advance; use the IMD stage timing correctly. - Nisarga occurred in 2020. The major Uttarakhand/Kedarnath event studied here occurred in 2013. - Cordons follow assessed hazards; there are no universal separate P-wave, S-wave and surface-wave cordon rings. - River interlinking has conditional benefits and limitations; it is not a proven universal cure for mountain flash flooding. - Clinical or hazardous-material actions require appropriate training. Public protective guidance is kept separate from specialist operations. ## Primary references used for technical checks - [UNDRR: multi-hazard early warning](https://www.undrr.org/words-into-action/guide-multi-hazard-early-warning) - [IMD cyclone warning stages](https://rmcnewdelhi.imd.gov.in/MET_CENTRES/MCLUCKNOW/Lmeteorology/faq_cyclone.pdf) - [USGS magnitude, energy and intensity](https://www.usgs.gov/programs/earthquake-hazards/earthquake-magnitude-energy-release-and-shaking-intensity) - [USGS earthquake facts and protective actions](https://www.usgs.gov/programs/earthquake-hazards/earthquake-facts-earthquake-fantasy) - [Government clarification on Indian seismic standards, 1 April 2026](https://www.pib.gov.in/PressReleasePage.aspx?PRID=2247533&lang=2®=48) - [MHA: laws, policy and plans](https://www.ndmindia.mha.gov.in/ndmi/laws-plans-and-policies) - [NRSC disaster management support](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) - [JESIP: METHANE reporting](https://www.jesip.org.uk/joint-doctrine/m-ethane/) - [FHWA hydrology and rational-method units](https://www.fhwa.dot.gov/engineering/hydraulics/pubs/sa96078.pdf) - [GSDMA reconstruction programme](https://www.gsdma.org/Content/geerp-gerrp-4216) - [GSDMA mason training](https://www.gsdma.org/Content/masons-training-certification-programme-4223) - [NPTEL: Panshet case](https://archive.nptel.ac.in/content/storage2/courses/105106114/pdfs/Unit41/41_2.pdf) - [SEEDS](https://www.seedsindia.org/) - [Goonj](https://goonj.org/) - [ActionAid emergency preparedness](https://www.actionaidindia.org/emergency/emergency-preparedness/) - [CARE disaster response](https://www.care.org/our-work/disaster-response/emergencies/) The guide is a study resource, not an official marking scheme. Where a source question contains an error, its wording is retained with a correction in the answer. Checking coverage and arithmetic improves reliability; it cannot guarantee a particular examination score. ## Calculation provenance and exam priority **What the available papers show:** the 12 recovered TEE sittings (1 December 2022 to 10 July 2026), containing 194 question parts, ask for explanations, comparisons, sketches, measures, checklists and case applications. No question in that set supplies values and requires a numerical calculation. The 1 December 2022 Q2A [10 marks] asks for the disaster equation and its components with an example; it is a theory question. This describes the available papers, not a restriction on a future examiner. | Optional material | Actual basis | | --- | --- | | Magnitude comparisons — optional authored practice | M2 PDF p 55 teaches the tenfold amplitude relation. The numerical values below were added for explanation; none is a recovered PYQ. The approximate energy-ratio relation is an external scientific extension (USGS), not a formula explicitly found in the supplied lecture text. | | Seismic moment — optional lecture-formula practice | M2 PDF p 55 teaches seismic moment and moment magnitude. The three sets of values below were authored for practice, not taken from a recovered question paper. SI conversion and explicit unit conditions clarify the lecture formula. | | Runoff — lecture-adapted and authored examples | The first two examples adapt the barren-land and township values in M2 PDF p 88, with the unit error corrected. The percentage-increase request, time conversion and 20-hectare example add practice. These are lecture examples or authored extensions, not PYQs. | | Channel discharge — optional lecture-formula practice | M2 PDF p 100 prints Q = A × V in the desilting discussion. It supplies no drain dimensions or worked numerical. All three numerical scenarios below were authored for understanding, not recovered from exam papers. | | Risk relationships — optional illustrative arithmetic | M1 PDF p 33 gives probability × impact; pp 34–40 explain disaster-risk components and capacity. All numbers below were authored as illustrations. The actual 1 December 2022 Q2A [10 marks] requires a conceptual explanation and example, not a numerical answer. | Practice question marks are authored targets. Actual PYQ marks are transcribed from the original paper. Numerical practice is supplementary; no future paper composition is inferred from the presence of a formula in a slide. --- ## TEE · TEE preparation: syllabus, answer depth and previous papers Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/tee-start--plan/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/tee-start/plan AY2026–27 · all five syllabus units ## TEE preparation order supported by the papers **What the available papers show:** the 12 recovered TEE sittings (1 December 2022 to 10 July 2026), containing 194 question parts, ask for explanations, comparisons, sketches, measures, checklists and case applications. No question in that set supplies values and requires a numerical calculation. The 1 December 2022 Q2A [10 marks] asks for the disaster equation and its components with an example; it is a theory question. This describes the available papers, not a restriction on a future examiner. 1. Complete all five syllabus units. Start with definitions and the management cycle, then study each hazard through causes, impacts and measures. 2. Practise the descriptive and applied answer forms below, including diagrams wherever the prompt asks for them. 3. Use the latest solved final and re-exam first, then the older papers to cover additional themes. Recurrence is useful practice evidence, not a prediction. 4. Keep lecture formulas and their meanings. The long calculation exercises are optional practice, separated from the TEE core reading. | Theme seen in recent papers | Exact examples from inspected originals | Preparation task | | --- | --- | --- | | Earthquake causes, waves and boundaries | 15 May 2026 Q1A [5], Q2A [10]; 10 July 2026 Q2A [10] | Explain the process and practise labelled sketches. | | Hazard, risk, vulnerability and classification | 15 May 2026 Q1C [5]; 10 July 2026 Q1A [5], Q4B [10] | Define each term and apply it to the named disaster. | | Flood, drought, landslide and cyclone measures | 15 May 2026 Q1B [5], Q3A [10], Q5A [10]; 10 July 2026 Q3A [10], Q5A [10], Q7A [10] | Name the measure, explain its mechanism, and justify it for the stated hazard. | | Cordon-off zones, cycle and disaster scale | 15 May 2026 Q2B [10], second printed Q5A [10]; 10 July 2026 Q2B [10], Q7B [10] | Draw labelled diagrams and explain the purpose of each part. | | Risk mapping, GIS and its application | 15 May 2026 Q3B [10], Q6A [10]; 10 July 2026 Q4A [10] | Connect data layers to a decision and the specified management phase. | | Training, drills, awareness and preparedness kits | 15 May 2026 Q1D [5], Q4A [10]; 10 July 2026 Q1D [5], Q6B [10] | Develop the requested checklist, roles or objectives. | | Warnings, media and incident reporting | 15 May 2026 Q6B [10]; 10 July 2026 Q1C [5], Q3B [10], Q6A [10] | Give the channel/protocol, explain its use, and apply it to the incident. | | Ethics and case-based analysis | 15 May 2026 Q4B [10], Q7B [10]; 10 July 2026 Q5B [10] | Explain the principles and justify a relevant example. | [15 May 2026 final →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1a/) · [10 July 2026 re-exam →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1a/) TEE includes the common M2 chapters plus the foundations, additional hazards, training, technology and case-study chapters below. The supplied syllabus specifies a **100-mark TEE, scaled to 50**. The verified recent papers use 3 hours, Q1 compulsory, and any 4 from Q2–Q7. Each selected question totals 20 marks. Treat this as observed past-paper format; follow your forthcoming paper’s printed instructions. | Unit | Syllabus coverage | Where to read | | --- | --- | --- | | 1 | Definitions; risk/vulnerability; all listed natural and man-made hazards | Basics; Risk; Natural hazards; Human-induced hazards | | 2 | Earthquake types, magnitude/intensity, Indian zones/faults; flood, drought and landslide management; case studies | Earthquakes; Floods; Drought/landslides; India/cases | | 3 | Principles, cycle, policy, national/state bodies and warning systems | Common chapters on cycle, principles, institutions and warnings | | 4 | Training, drills, awareness, GIS and remote sensing | Training and technology | | 5 | Case studies | Case-study answer book and solved PYQs | ## How a 10-mark answer becomes different from a 3-mark answer Develop the requested number of points. Each point needs a mechanism, a disaster-specific example and, where relevant, a limitation. If the question says “with sketches”, include labelled diagrams. A list of names alone will not meet “describe in detail”. The recent marking synopses explicitly reward explanations, relevance, examples and sketches. 1. Read the prerequisite concept. 2. Follow the complete model answer beneath a relevant PYQ. 3. Write the answer from memory in the same sequence, adding the requested diagram. 4. Use the revision pages for a final compact pass; use the lessons to resolve any gap. Papers across AI, other BTech streams and integrated programmes contain duplicates. The PYQ section groups these repetitions and retains the original exam date, question number and marks. Source scans are not placed in the reading flow. --- ## TEE · Hazard is the threat; disaster is the serious disruption Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/basics--hazard/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/basics/hazard Foundations · needed in M2 and TEE · syllabus unit 1 **Definition.** A hazard is a potentially harmful process, phenomenon or human activity. A disaster is a serious disruption of a community caused when hazardous events interact with exposure, vulnerability and limited capacity. **Simple meaning.** Baarish khatra ho sakti hai; usse logon ki zindagi aur services seriously disrupt hona disaster hai. ## One example, from cause to consequence Heavy rain is a hazard. People living beside an overflowing drain are exposed. Weak houses and blocked drainage increase vulnerability. Rescue boats, warnings and safe shelters increase capacity. If flooding seriously disrupts lives, services and livelihoods, the event becomes a disaster. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. A hazard becomes a disaster through its interaction with exposed, vulnerable people and assets. Capacity changes the outcome. | Term | Meaning | Flood example | | --- | --- | --- | | Hazard | What can cause harm? | Heavy rainfall / high river flow | | Exposure | Who or what is in the affected place? | Homes beside the river | | Vulnerability | Why can those exposed suffer damage? | Weak houses; limited mobility; poor drainage | | Capacity | What strengths help manage the threat? | Warnings, shelters, trained rescue teams | | Disaster risk | Potential losses before the event occurs | Possible deaths, damage and disruption | | Disaster | Serious disruption when the event occurs | Homes inundated and essential services overwhelmed | ### Practice question. Differentiate between a hazard and a disaster with an example. [2 practice marks] #### Answer A **hazard** has the potential to cause harm, whereas a **disaster** is the serious disruption produced when that hazard affects exposed and vulnerable people or assets. A river rising is a flood hazard; widespread inundation that disrupts homes, hospitals and livelihoods is a flood disaster. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Hazard = threat; disaster = serious disruption. --- ## TEE · Vulnerability, capacity and resilience Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/basics--vulnerability/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/basics/vulnerability Foundations · needed in M2 and TEE · syllabus unit 1 **Definition.** Vulnerability is the susceptibility of people or assets to harm. Capacity is the available strength and resources to manage risk. Resilience is the ability to withstand, adapt to and recover from disruption while maintaining or restoring essential functions. **Simple meaning.** Same earthquake, do buildings: strong building ka loss kam ho sakta hai. ## Four dimensions of vulnerability | Dimension | Why it increases harm | Risk reduction | | --- | --- | --- | | Physical | Weak construction may collapse in shaking. | Safe design and retrofitting | | Social | Inaccessible warnings exclude people with hearing or visual disabilities. | Accessible messages and assisted evacuation | | Economic | A household with one damaged livelihood has little income for recovery. | Savings, social protection and livelihood diversity | | Environmental | Wetland loss removes flood storage. | Wetland protection and catchment restoration | Being exposed is different from being vulnerable. Two buildings in the same seismic area are exposed to similar shaking, but the poorly built one may suffer greater damage. A disability does not itself determine disaster loss: inaccessible transport, buildings and warning systems often create the disabling barrier. ## Capacity operates at three levels 1. **Individual:** knowledge, first-aid training and an evacuation plan. 2. **Organisational:** staff, equipment, procedures and coordination in a hospital or local authority. 3. **Enabling environment:** laws, budgets, institutions and inclusive participation. ### Practice question. Explain vulnerability and capacity with one example each. [2 practice marks] #### Answer **Vulnerability** is a condition that increases susceptibility to a hazard; an unreinforced building is vulnerable to earthquake damage. **Capacity** is the combination of skills and resources available to manage risk; trained rescue teams and safe shelters increase a community’s capacity. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Exposure = location; vulnerability = weakness; capacity = available strength. --- ## TEE · The disaster management cycle: six stages explained Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/basics--cycle/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/basics/cycle Foundations · needed in M2 and TEE · syllabus unit 1 **Definition.** Disaster management is the organised process of preventing or reducing risk, preparing for emergencies, responding to impacts and supporting recovery. **Simple meaning.** Pehle risk ghatao, phir ready raho; event par bachao, baad mein safer tarike se banao. Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle The cycle repeats: lessons from recovery must improve prevention and preparedness. | Stage | Meaning | One clear example | | --- | --- | --- | | Prevention | Avoid a risk where possible. | Keep a new school out of an active floodway. | | Mitigation | Reduce the severity of losses. | Strengthen an existing school against shaking. | | Preparedness | Build readiness to act. | Prepare evacuation routes and conduct drills. | | Response | Take urgent life-saving action. | Rescue trapped people and provide emergency shelter. | | Recovery | Restore services and livelihoods. | Restore water, power and access to education. | | Rehabilitation / reconstruction | Restore functioning and rebuild damaged systems more safely. | Rebuild homes to appropriate safety standards. | ## Why some diagrams show four stages The four-stage cycle uses **mitigation → preparedness → response → recovery**. Prevention is treated with risk reduction; rehabilitation and reconstruction are included in recovery. The six-stage version separates them for explanation. These activities overlap; response can begin before impact, for example by evacuating after a cyclone warning. ## Build Back Better Recovery should reduce future risk. Rebuilding the same weak house in the same floodway may restore yesterday’s vulnerability. Safer siting, stronger design, accessible services and restored livelihoods improve resilience. ### Practice question. Explain the disaster management cycle with examples. [3 practice marks] #### Answer The cycle is a continuous sequence of risk reduction, readiness, emergency action and recovery. 1. **Prevention and mitigation:** avoid unsafe development and strengthen vulnerable buildings. 2. **Preparedness:** arrange warnings, evacuation routes, drills and emergency supplies. 3. **Response:** rescue people, provide urgent care and distribute essentials. 4. **Recovery:** restore services and livelihoods; rehabilitation and reconstruction should build back better. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Prevent → reduce → prepare → respond → restore → rebuild safer. --- ## TEE · Classifying a disaster on four different bases Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/risk--classification/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/risk/classification TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. **Simple meaning.** Ek hi event ko “kis wajah se, kis type ka, kahan effect, kitna spread” se label karo. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. ### Practice question. Classify the Bhopal gas tragedy on four bases and explain the classification. [5 practice marks] #### Answer 1. **Origin:** human-induced, because it arose from an industrial hazardous-material release. 2. **Characteristic:** chemical, involving toxic methyl isocyanate gas. 3. **Environmental medium:** primarily air exposure, with extensive health and social consequences. 4. **Geographic reach:** the immediate impact was concentrated in Bhopal, while relief, regulation and long-term consequences involved state and national institutions. Geographic impact and response level should be stated separately. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. **Yaad rakho:** Origin → characteristic → affected medium → geographic reach. --- ## TEE · Disaster equation: components and interpretation Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/risk--risk-formula/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/risk/risk-formula TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Disaster risk is the potential loss associated with a hazardous event and the exposed, vulnerable system. A classroom index can illustrate how hazard, vulnerability and capacity interact; it is not automatically a real probability. $$ R\propto\frac{H\times V}{C} $$ $$ R_{index}=\frac{H\times E\times V}{C}\quad\text{if exposure is explicitly included} $$ H is hazard, V vulnerability, E exposure and C capacity. More hazard/exposure/vulnerability generally increases potential loss; stronger capacity can reduce it. Scores must be defined and comparable; do not mix rupees, people and undefined scores and call the result a probability. A separate expected-loss model is probability × consequence when probability and consequence are clearly given. ## Explain each component with one connected flood example | Component | Meaning | Example | | --- | --- | --- | | Hazard | Potentially damaging event or process. | Intense rainfall and rising river water. | | Exposure | People and assets in the affected location. | Homes, roads and a hospital on the floodplain. | | Vulnerability | Conditions that make exposed elements susceptible to loss. | Weak housing, blocked drainage and inaccessible evacuation transport. | | Capacity | Available strengths for reducing risk and managing impacts. | Maintained drains, warnings, trained teams and accessible shelters. | ## Interpret the equation For otherwise comparable conditions, greater hazard, exposure or vulnerability increases potential loss; stronger capacity can reduce it. Heavy rain over an uninhabited area and equally heavy rain over a densely populated settlement do not have the same disaster risk. A disaster occurs when the event seriously disrupts the exposed community; the relationship does not define a universal numerical threshold. ## Significance for management 1. Identify the hazard and who or what is exposed before selecting measures. 2. Reduce vulnerability through safer construction and accessible services. 3. Reduce exposure by appropriate land-use planning. 4. Increase capacity through warning, training, shelters and coordination. 5. Review the assessment as conditions and available information change. The original 1 December 2022 Q2A asks for the equation, its components and an example. It supplies no numbers and does not ask for a calculation. The explanation above answers that theory requirement. [Optional solved calculations and their source →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--risk/) --- ## TEE · Risk assessment, mapping and the four-step method Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/risk--mapping/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/risk/mapping TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Risk assessment identifies hazards and evaluates exposure, vulnerability and capacity to understand possible losses and priorities. Risk mapping represents that information geographically. **Simple meaning.** Map sirf coloured picture nahi; uske basis par safer decisions lene hain. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Hazard information combined with exposed assets and vulnerability supports risk-based decisions. 1. **Identify risk:** determine what can happen, where and to whom. For a flood, gather past inundation, low ground, river and settlement data. 2. **Assess risk:** examine likelihood, depth/velocity, people and assets, construction and coping capacity. Rank areas by potential harm. 3. **Communicate risk:** provide understandable maps, warnings and explanations to planners, responders and residents. Include uncertainty and local accessibility needs. 4. **Mitigate risk:** apply zoning, drainage improvements, shelters, evacuation and training; update the assessment after changes. ## Analysis and assessment | Disaster analysis | Damage / needs assessment | | --- | --- | | Explains why and how an event produced losses. | Estimates what has been damaged and what assistance is needed. | | Investigates mechanisms, vulnerabilities and failures. | Measures affected people, services, losses and recovery requirements. | | Uses event data, models and causal investigation. | Uses surveys, inspections, inventories and field reports. | | Supports long-term prevention and improved planning. | Supports relief allocation and recovery priorities. | This comparison concerns **post-disaster damage/needs assessment**. Assessment is not restricted to after a disaster: pre-event risk assessments are essential too. Neither word guarantees greater accuracy by itself. ### Practice question. Explain the four steps of risk mapping for floods. [5 practice marks] #### Answer 1. **Identify:** map flood-prone terrain, past flood extent and exposed settlements. 2. **Assess:** combine likely depth and frequency with population, vulnerable buildings and available shelters. 3. **Communicate:** share accessible risk maps and safe-route information with residents and agencies. 4. **Mitigate:** use the maps to regulate development, protect drainage, prioritise defences and plan evacuation; update them after new data. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) **Yaad rakho:** Identify → assess → communicate → mitigate. --- ## TEE · Why vulnerability builds up: the pressure-and-release model Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/risk--progression/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/risk/progression TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** The progression of vulnerability explains how underlying social and economic conditions become immediate unsafe conditions. Disaster risk emerges when a hazard interacts with this vulnerability. **Simple meaning.** Unsafe ghar last visible problem hai; peeche housing, planning aur resources ka chain ho sakta hai. Swipe across the diagram to read its labels ↔ ![Pressure and release: reduce the causes of vulnerability](https://deep-learning-study-room.vercel.app/dm/fig/vulnerability.bbe86f2049.svg) Diagram: Pressure and release: reduce the causes of vulnerability. Labels: Pressure and release: reduce the causes of vulnerability | Pressure and release: reduce the causes of vulnerability | Root causes | Unequal access to resources | and decision-making | Dynamic pressures | Unsafe urban growth, weak | services and lost ecosystems | Unsafe conditions | Weak buildings, hazardous | sites and limited support | Risk grows where these vulnerabilities meet a hazard. | “Release” means reducing vulnerability and pressure—not releasing a disaster. Root causes act through dynamic pressures to produce unsafe conditions. Risk reduction can intervene at every stage. | Stage | Meaning | Urban flood illustration | | --- | --- | --- | | Root causes | Deep inequalities in access to power, institutions and resources. | Low-income households have limited access to secure affordable housing. | | Dynamic pressures | Processes that translate those causes into local risk. | Rapid unplanned development, weak enforcement and underinvestment in drainage. | | Unsafe conditions | Immediate exposed and vulnerable situations. | Fragile homes beside blocked drains without accessible evacuation. | | Hazard interaction | The physical trigger affects that vulnerable system. | Intense rain floods the settlement. | “Release” in this model means reducing the pressures that create vulnerability; it is not a claim that disaster itself is a beneficial release. Safer housing access, accountable planning, drainage investment and warning support address different links in the chain. ### Practice question. Explain the progression of vulnerability with a flood example. [5 practice marks] #### Answer Vulnerability develops through **root causes → dynamic pressures → unsafe conditions**. Limited access to affordable safe housing is a root cause. Unplanned urbanisation and weak drainage investment are dynamic pressures. Fragile settlements in flood-prone areas are unsafe conditions. When intense rainfall occurs, these conditions amplify losses. Risk reduction must therefore improve both immediate safety and the underlying social and planning conditions. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Root → pressure → unsafe condition → hazard interaction. --- ## TEE · Four perspectives and four impact categories Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/risk--perspectives/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/risk/perspectives TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** A disaster can be studied through physical events, social structures, economic consequences and governance. Each perspective highlights a different reason for the observed losses. **Simple meaning.** Same disaster ko four lenses se dekho: event, people, money, governance. | Perspective | What it asks | Example | | --- | --- | --- | | General / hazard-centred | What happened, how intense was it and what immediate response is required? | Study the earthquake source, shaking and rescue needs. | | Socio-cultural | How do social roles, inequality, trust and local knowledge shape losses and recovery? | Warnings that exclude a language group may fail that community. | | Economic | What are direct losses, interrupted livelihoods and long-term development effects? | A damaged shop loses both assets and future business income. | | Political / governance | How do rules, enforcement, representation and coordination shape risk? | Permission for unsafe development and weak inspections can increase losses. | ## Classify impacts clearly **Physical** impacts include structural and lifeline damage. **Social** impacts include displacement, health effects, education disruption and trauma. **Economic** impacts include repair costs, production losses and livelihood disruption. **Ecological** impacts include habitat damage, erosion and contamination. The same event can create all four. ### Practice question. Explain four perspectives of disaster management with examples. [5 practice marks] #### Answer | Perspective | Explanation and example | | --- | --- | | General | Studies the hazardous event and response: source, shaking and immediate rescue after an earthquake. | | Socio-cultural | Studies unequal vulnerability and community capacity: local networks help evacuate people needing assistance. | | Economic | Studies asset, income and development losses: floods damage crops and remove a season’s earnings. | | Political | Studies governance and accountability: land-use enforcement and transparent relief allocation affect who suffers and who recovers. | #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Physical event ≠ full explanation of the disaster. --- ## TEE · Levels of disaster and escalation of response Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/risk--scale/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/risk/scale TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. **Simple meaning.** Pehle apni capacity, phir nearby help, phir wider coordination; numbering ka framework same rakho. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. ### Practice question. Explain the significance of a disaster response scale. [5 practice marks] #### Answer A response scale helps match resources and coordination to the seriousness of an event and the capacity available. Local management is used when adequate; state and national support are mobilised when needs exceed lower-level capacity. This supports timely escalation, clear responsibilities and allocation of specialist teams. It is distinct from scientific hazard scales such as earthquake magnitude. #### Illustrative application · From urgent help to recovery A displaced household may first need safe shelter and essential supplies, then restoration of services and livelihood support. Rebuilding safer addresses longer-term risk; providing immediate relief alone does not complete recovery. **Yaad rakho:** Needs exceed capacity → escalate support. --- ## TEE · How an earthquake starts: plates, faults, focus and epicentre Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--origin/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/origin TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** An earthquake is ground shaking caused by a sudden release of stored energy in the Earth. Most destructive earthquakes result from sudden slip on a fault, sending out seismic waves. **Simple meaning.** Plate slow move karti hai, fault lock rehta hai; suddenly slip hua toh stored energy waves ban kar nikli. ## Build the idea one step at a time 1. The outer rigid Earth is divided into **tectonic plates**. Their slow relative movement loads rocks with stress. 2. A **fault** is a fracture or zone of fractures along which rock blocks can move. Friction can temporarily lock the blocks. 3. The rocks deform and store elastic energy. When stress exceeds the resistance to slip, the fault moves suddenly. This is the elastic-rebound explanation. 4. Energy travels outward as **seismic waves**. These cause shaking at the surface. The waves carry the released energy; they are not the original tectonic cause. Swipe across the diagram to read its labels ↔ ![Focus, epicentre and a slipping fault](https://deep-learning-study-room.vercel.app/dm/fig/earthquake.46adac0128.svg) Diagram: Focus, epicentre and a slipping fault. Labels: Focus, epicentre and a slipping fault | Focus, epicentre and a slipping fault | Fault plane | Epicentre: surface above focus | Focus: rupture begins within Earth | Surface | Waves spread from the source; shaking effects vary with local conditions. Focus is inside the Earth; epicentre is the surface point directly above it. Fault rupture can extend far beyond the starting point. | Word | Meaning | | --- | --- | | Focus / hypocentre | The point inside the Earth where rupture begins. | | Epicentre | The point on the surface vertically above the focus. | | Focal depth | Vertical distance from the surface to the focus. | | Foreshock / mainshock / aftershock | Smaller preceding event, largest event in a sequence, and subsequent events; “foreshock” is usually identified retrospectively. | ### Practice question. Explain the cause of a tectonic earthquake and distinguish focus from epicentre. [3 practice marks] #### Answer Tectonic movement builds stress in rocks locked along a fault. When resistance is overcome, sudden slip releases stored elastic energy as seismic waves. The **focus** is the point within the Earth where rupture starts; the **epicentre** is the point on the surface directly above it. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. **Yaad rakho:** Focus below; epicentre above. --- ## TEE · Plate boundaries and earthquake classifications Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--types/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/types TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Earthquakes can be classified by their cause, position relative to plates and focal depth. These are different classification bases, so one event can belong to several categories at once. **Simple meaning.** Converge = paas; diverge = door; transform = side se slide. Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Three types of relative plate movement. Arrows show motion, not seismic waves. | Boundary | Movement | Typical process | | --- | --- | --- | | Convergent | Plates move towards one another. | Subduction or continental collision builds compressive stress. | | Divergent | Plates move apart. | Extension and faulting occur as new crust forms at spreading boundaries. | | Transform | Plates slide horizontally past one another. | Shear stress is released along strike-slip faults. | | Classification | Types and meaning | | --- | --- | | By plate position | Interplate: at a plate boundary. Intraplate: within a plate away from its boundary; old faults can reactivate. | | By cause | Tectonic movement; volcanic activity; collapse in cavities; induced events associated with activities such as mining or reservoir loading. | | By focal depth | Common seismological grouping: shallow 0–70 km, intermediate 70–300 km, deep 300–700 km. Boundary conventions may be inclusive on either side. | A shallow event can produce severe local shaking because its source is close to the surface, but depth alone does not determine damage. Magnitude, distance, soil, construction and preparedness also matter. Intraplate does not mean harmless: Kutch and the peninsular region have experienced damaging earthquakes. ### Practice question. Differentiate between interplate and intraplate earthquakes. [2 practice marks] #### Answer **Interplate earthquakes** occur at boundaries where tectonic plates interact. **Intraplate earthquakes** occur within a plate, away from its boundary, often on reactivated faults. Both can be damaging; location within a plate does not imply zero seismic risk. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. **Yaad rakho:** Classify by cause, location or depth—do not mix the three. --- ## TEE · P, S, Love and Rayleigh waves; the seismograph Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--waves/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/waves TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Seismic waves are disturbances carrying earthquake energy. Body waves travel through the Earth; surface waves propagate along its surface. **Simple meaning.** P = push-pull; S = side shear. Seismogram record hai, machine nahi. Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. Compare the direction of energy travel with the local movement of ground particles. | Wave | Particle movement | Travel / key point | | --- | --- | --- | | P: primary | Compression and expansion parallel to travel direction. | Fastest body wave; travels through solids and fluids. | | S: secondary | Shearing perpendicular to travel direction. | Slower than P; cannot propagate through liquids as shear waves. | | Love | Horizontal side-to-side surface motion. | Surface wave; produces strong lateral shaking. | | Rayleigh | Rolling, approximately elliptical motion in a vertical plane. | Surface wave with vertical and horizontal ground movement. | “Direction of travel” means where wave energy moves. “Particle movement” means how a small part of the ground moves locally. A particle need not travel all the way from the fault to your city. Do not list Love waves as body waves. ## How shaking is recorded A **seismometer** senses ground movement. A **seismograph** is the sensing-and-recording system; a **seismogram** is its record. A classical instrument uses inertia: the supporting ground moves relative to a suspended mass. Modern electronic instruments record a time series. Sensor, recorder and timing reference are the three basic components. ## Why P–S arrival separation is useful P waves arrive first because they travel faster. The P–S time gap generally increases with source distance. Records from several stations constrain earthquake location. One station alone does not uniquely locate an epicentre; real location calculations use travel-time models. ### Practice question. Compare P waves and S waves. [3 practice marks] #### Answer | P waves | S waves | | --- | --- | | Faster; arrive first. | Slower; arrive after P. | | Longitudinal compression and expansion. | Transverse shear motion. | | Travel through solids and fluids. | Do not travel through liquids as shear waves. | #### Illustrative application · Reading two arrivals A station records a P arrival before an S arrival because P waves travel faster. The growing arrival-time gap with distance can help locate the source using travel-time information. A gap alone, without an appropriate velocity model, is not a universal kilometre conversion. **Yaad rakho:** Body: P + S. Surface: Love + Rayleigh. --- ## TEE · Magnitude and intensity: the most important distinction Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--magnitude-intensity/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/magnitude-intensity TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Magnitude describes earthquake size using instrument-based scales. Intensity describes the shaking and effects at a particular location. **Simple meaning.** Magnitude event ka size; intensity tumhare location par effect. | Basis | Magnitude | Intensity | | --- | --- | --- | | Refers to | Size of the source event. | Effects at a site. | | Values | An event has an estimated magnitude for a specified scale; estimates can be revised. | One event has many site intensities. | | Scale example | Local magnitude Mₗ / moment magnitude M𝑤. | Modified Mercalli intensity I–XII. | | Evidence | Seismic recordings or seismic moment. | Felt reports, movement and damage observations. | | Depends on site? | Not a separate magnitude for each town. | Changes with distance, local soil and built environment. | Example: a magnitude 6 earthquake may be strongly felt near the source and weakly felt far away. The magnitude has not “become 3” in the distant town; local shaking intensity is lower. Magnitude does not directly tell you a death toll. ## Reading the Modified Mercalli scale I means not felt except under special circumstances; II–III are weakly felt; IV–V become widely noticeable; VI–VII can involve damage, especially to vulnerable construction; VIII–IX indicate severe damage; X–XII represent very severe to extreme effects. These are descriptive intensity levels, not energy multiplication factors. ### Practice question. Distinguish earthquake magnitude from earthquake intensity. [3 practice marks] #### Answer **Magnitude** expresses the size of an earthquake from instrument-based measurements, for example moment magnitude. **Intensity** expresses its observed effects at a particular site, for example Modified Mercalli I–XII. A given event has an estimated magnitude on a specified scale, but intensities vary among sites because distance, soil and construction differ. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. **Yaad rakho:** One event size, many local effects. --- ## TEE · What logarithmic magnitude means Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--logarithms/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/logarithms TEE core · taught concepts and descriptive answers; extended sums are optional A logarithmic scale represents multiplicative changes by differences. The M2 lecture p 55 states that a one-unit increase corresponds to ten times the measured amplitude on a comparable, corrected amplitude-based scale. $$ \frac{A_2}{A_1}=10^{M_2-M_1} $$ A means measured wave amplitude and M means magnitude. The subscripts identify the two events being compared. This is not a direct formula for damage or deaths; local intensity also depends on distance, soil and buildings. For the core theory answer, explain the distinction between source magnitude and local intensity. Extended amplitude, inverse-log and energy calculations are kept in optional practice. [Optional solved calculations and their source →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--magnitude/) --- ## TEE · Seismic moment and magnitude: meaning and units Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--moment/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/moment TEE core · taught concepts and descriptive answers; extended sums are optional Seismic moment measures the physical strength of fault slip. The lecture p 55 relates it to rock rigidity, slipped fault area and average slip. $$ M_0=\mu A D $$ | Symbol | Meaning | SI unit | | --- | --- | --- | | M₀ | Seismic moment | N·m | | μ | Rock rigidity | N/m² | | A | Area of fault that slipped | m² | | D | Average slip | m | Larger rigidity, a larger slipped area or greater slip increases the moment. Moment magnitude places that physical measure on a logarithmic magnitude scale. $$ M_w=\frac{2}{3}(\log_{10}M_0-9.1)\quad(M_0\text{ in N m}) $$ $$ M_w\approx\frac{2}{3}\log_{10}M_0-10.7\quad(M_0\text{ in dyn cm}) $$ Use the unit convention with its matching constant. The lecture prints the second expression; its missing unit condition is made explicit here. The supplied syllabus includes magnitude and intensity. No moment-substitution problem was found in the available papers. [Optional solved calculations and their source →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--moment/) --- ## TEE · Earthquake effects and why buildings fail Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--effects/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/effects TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Earthquake damage results from shaking and ground failure, followed in some cases by cascading hazards such as fire, landslides and tsunami. **Simple meaning.** Ground bas hilta nahi; kabhi uski support dene ki ability bhi gir jaati hai. | Effect | Mechanism | Consequence | | --- | --- | --- | | Ground shaking | Seismic waves accelerate the ground. | Structures experience inertia forces and may crack or collapse. | | Surface rupture | Fault displacement reaches the surface. | Roads, pipelines and foundations crossing the rupture may break. | | Liquefaction | Shaking raises pore-water pressure in susceptible saturated loose soils. | Soil loses effective strength; structures can settle or tilt. | | Landslide / rockfall | Shaking destabilises slopes. | Settlements and roads may be buried or cut off. | | Tsunami | Some undersea earthquakes displace the water column. | Coastal inundation; not every earthquake generates a tsunami. | | Fire and leaks | Utilities or industrial equipment break. | Fire, contamination and loss of water or power. | ## Impacts in an exam answer **Physical:** building and lifeline damage. **Social:** death, injury, displacement, disrupted education and trauma. **Economic:** direct repair losses and indirect loss of production or wages. **Ecological:** slope disturbance, habitat damage and contamination. Disease risk can increase where safe water, sanitation and healthcare fail; an epidemic is not inevitable after every earthquake. ### Practice question. Explain soil liquefaction and its effects. [3 practice marks] #### Answer Liquefaction is a loss of strength in susceptible water-saturated loose soil during strong shaking. Rising pore-water pressure reduces contact forces between soil grains, causing the soil to behave temporarily like a fluid. It can cause settlement, tilting of buildings, lateral spreading and damage to buried pipes. #### Illustrative application · Loose saturated ground Imagine two sites experiencing comparable shaking: one rests on competent rock and the other on loose, saturated sand. Excess pore-water pressure can reduce the sand’s strength, allowing a building to settle or tilt. The hazard depends on ground conditions as well as the earthquake. **Yaad rakho:** Shaking → ground failure → cascading hazards. --- ## TEE · Earthquake preparedness, response, recovery and cordons Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/earthquakes--management/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/earthquakes/management TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Earthquake risk reduction combines safe construction, non-structural safety, preparedness and coordinated response. Precise earthquake prediction is not a dependable safety strategy. **Simple meaning.** Earthquake ka exact date guess karne ke bajay building aur response ready rakho. ## Before shaking - Get qualified assessment of vulnerable structures; retrofit where needed and enforce safe design. - Secure shelves, cylinders and heavy objects; keep heavy items low. - Prepare a family communication plan, emergency kit and accessible evacuation arrangements. Practise Drop, Cover and Hold On. ## During shaking Indoors, **Drop, Cover and Hold On**: get low, protect your head and neck under sturdy cover where possible, and hold on. Keep away from glass. Do not rush towards stairs or lifts while the building is shaking. Outdoors, move away from buildings and overhead lines if safe. In a vehicle, stop in a safe clear place away from bridges and hazards and remain inside until shaking stops. ## After shaking Expect aftershocks. Leave a damaged building by a safe route when shaking stops; do not use lifts or re-enter until cleared. Avoid damaged utilities and flames near suspected gas leaks. Follow official information. On a threatened coast, strong or long shaking is a reason to follow tsunami evacuation procedures without waiting at the beach. ## Agency responsibilities 1. **Response:** rapid assessment, search and rescue, emergency care, firefighting, accessible shelter, communication and restoration of critical services. 2. **Recovery:** inspect and repair lifelines, restore housing and livelihoods, support mental health, and document damage. 3. **Mitigation:** revise unsafe siting and strengthen critical buildings rather than reproduce previous weaknesses. ## Cordon-off zones A cordon is a controlled boundary around a dangerous site. Authorities assess hazards, mark the perimeter, create controlled access points, communicate restrictions and keep responder routes clear. Exclusion zones keep the public away from high danger; restricted zones permit specified authorised tasks; safe assembly areas provide refuge. Distances depend on the incident. Do not treat “gold, silver and bronze” as universal fixed-distance hazard rings: those terms are also used for command levels. ### Practice question. Explain three earthquake mitigation measures. [3 practice marks] #### Answer 1. **Safe construction and retrofitting:** design and strengthen structures to resist earthquake forces and reduce collapse. 2. **Non-structural safety:** anchor shelves and equipment and protect utilities to reduce falling-object and fire hazards. 3. **Planning and drills:** prepare communication, evacuation and response arrangements so people and agencies act safely. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. Earthquake early warning detects a rupture that has already begun and may warn some locations before strong shaking arrives. It is not a prediction of an earthquake days in advance, and nearby locations may receive little or no useful warning. **Yaad rakho:** Before: strengthen. During: protect. After: inspect and recover. --- ## TEE · Indian seismic zones and major fault systems Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/india--zones-faults/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/india/zones-faults TEE · explicitly named in unit 2 **Definition.** Seismic zoning divides territory by expected seismic hazard for design and planning. A fault system is a set of geological structures capable of accommodating deformation; a zone is not a prediction of the next earthquake. **Simple meaning.** Map design risk batata hai; next earthquake ki date nahi. | IS1893(Part 1): 2016 zone | Relative hazard label | | --- | --- | | II | Low seismic hazard | | III | Moderate | | IV | Severe | | V | Very severe / highest in this four-zone framework | Use the four-zone framework II–V shown in the course. A Government of India release dated 1 April 2026 states that the 2016 map remained the applicable standard after withdrawal of the revised zonation in March 2026. Read precise site boundaries from the official map; an entire state need not lie in one zone. | Region / system | Why it matters | | --- | --- | | Himalaya: Main Himalayan Thrust, Main Central Thrust, Main Boundary Thrust, Himalayan Frontal Thrust | India–Eurasia convergence creates major compressional structures; active deformation is not identical on every mapped thrust. | | Northeast: Indo-Burman belt, Shillong region and Kopili fault zone | Complex plate interaction and active faulting produce high regional seismicity. | | Kutch region | Reactivated intraplate faults can produce damaging earthquakes away from the main Himalayan boundary. | | Narmada–Son lineament / central peninsular structures | Older structures can influence intraplate deformation; the peninsula is not completely earthquake-free. | | Andaman–Nicobar / Sunda subduction system | Convergence and underthrusting can generate large earthquakes and tsunami hazards. | ### Practice question. Explain the significance of seismic zoning and major fault systems in India. [5 practice marks] #### Answer Seismic zoning provides a regional basis for earthquake-resistant design and risk planning; the course uses zones II, III, IV and V. The Himalayan thrust system reflects India–Eurasia convergence, the northeast has complex active tectonics, Kutch demonstrates intraplate earthquake risk, and the Andaman–Nicobar subduction region also creates tsunami risk. Fault studies identify potential sources; site soil, construction and exposure determine local consequences. Zoning does not give the date or exact magnitude of a future earthquake. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. **Yaad rakho:** Hazard map + safe design + local assessment. --- ## TEE · Floods: definition, causes and classifications Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--types/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/types TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** A flood is the inundation of normally dry land by water. It may result from river overflow, intense rainfall, inadequate drainage, storm surge or sudden release of stored water. **Simple meaning.** Flood type ka answer dete waqt batao: paani kahan se aaya, aur kitni jaldi badha. ## Two separate ways of classifying floods | By onset | Meaning | Planning implication | | --- | --- | --- | | Slow-onset | Water rises gradually, often after prolonged rainfall. | There may be time for planned evacuation, but long duration disrupts livelihoods. | | Rapid-onset | Water rises over a comparatively short period. | Warnings and prompt action become critical. | | Flash flood | Very rapid rise, often within minutes to a few hours of the trigger. | Little lead time; fast flow and debris can be highly destructive. | | By source | How it develops | | --- | --- | | River / fluvial | River discharge exceeds channel capacity and water spreads over its floodplain. | | Urban / pluvial | Rainfall runoff exceeds drainage or infiltration capacity; a river need not overflow. | | Dam-breach | Dam failure releases reservoir water suddenly downstream. | | Coastal surge | Wind and low pressure raise sea level; high tide can compound flooding. | | GLOF | Sudden release from a glacial lake, for example after its retaining barrier fails. | “Flash” describes speed, whereas “dam-breach” describes the source. A dam-breach flood may therefore also be a flash flood. Onset speed and total flood duration are different; a rapidly starting event may leave some areas inundated for much longer. The PPT uses “rapid” and “flash” inconsistently, so describe the actual time-scale instead of forcing a rigid universal duration. ### Practice question. Differentiate between slow-onset floods and flash floods. [3 practice marks] #### Answer | Slow-onset | Flash | | --- | --- | | Gradual rise, often from prolonged basin rainfall. | Sudden rise, commonly after intense rainfall or dam failure. | | Usually more time for warning and evacuation. | Often little warning time. | | Long inundation disrupts crops and livelihoods. | Fast, debris-laden flow can cause immediate destruction. | #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Source and speed are two different labels. --- ## TEE · Why cities flood; the sponge-city idea Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--urban/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/urban TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Urban flooding occurs when runoff entering a built-up area exceeds the capacity of its drainage, infiltration and storage systems. **Simple meaning.** City mein rain zyada ho sakti hai, par paani ko soak, store aur exit ka rasta bhi chahiye. Swipe across the diagram to read its labels ↔ ![Urbanisation changes how rainfall becomes runoff](https://deep-learning-study-room.vercel.app/dm/fig/urban-flood.03309d30e8.svg) Diagram: Urbanisation changes how rainfall becomes runoff. Labels: Urbanisation changes how rainfall becomes runoff | Urbanisation changes how rainfall becomes runoff | More permeable catchment | More paved catchment | More infiltration / natural storage | Faster surface runoff → drains | High rainfall + limited storage/conveyance + exposure can cause flood losses. Paving increases runoff; loss of storage and blocked outlets make it harder to drain that runoff. 1. **Impervious surfaces:** roofs and roads prevent much of the rain from soaking into soil, so more water runs off quickly. 2. **Lost storage:** building on wetlands and lakes removes places that temporarily hold water. 3. **Blocked or undersized drains:** waste, silt and poor maintenance reduce conveyance capacity. 4. **Encroachment and poor connectivity:** construction blocks natural flow routes or disconnects drains from outlets. 5. **Heavy rainfall and high downstream water:** intense rain increases inflow; high tides or high river levels can prevent drainage at outfalls. ## Sponge-city measures A sponge-city approach combines permeable surfaces, rain gardens, wetlands, ponds and green spaces to absorb, slow, store and reuse rainwater. It works with drainage and land-use controls. It cannot absorb unlimited rainfall or replace flood warnings. | Problem | Matching measure | | --- | --- | | High runoff from paving | Permeable paving and green areas where suitable | | Little temporary storage | Detention basins and protected wetlands | | Clogged outlets | Pre-monsoon cleaning and reliable solid-waste collection | | Homes in flow paths | Risk-informed land use and floodplain protection | | People receive warnings too late | Local warnings, safe routes and shelters | ### Practice question. Explain three causes of urban flooding and corresponding measures. [3 practice marks] #### Answer 1. Impervious roofs and roads increase runoff; permeable surfaces and rain gardens can reduce and delay it. 2. Blocked or inadequate drains cannot carry peak flows; cleaning, capacity upgrades and connected outlets improve drainage. 3. Encroachment on wetlands and floodplains removes storage and exposes settlements; protection of these areas and risk-based land-use control reduce losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Soak → store → drain; keep the flow path open. --- ## TEE · Runoff, urbanisation and the lecture formula Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--runoff/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/runoff TEE core · taught concepts and descriptive answers; extended sums are optional Runoff is the part of rainfall flowing over or through the catchment toward a drainage point. Paving and roofs often increase runoff and reduce the time available for drainage. M2 p 88 compares barren land with a township to explain that mechanism. $$ Q=0.27778CIA $$ | Symbol | Meaning and units | | --- | --- | | Q | Estimated peak discharge in m³/s | | C | Dimensionless runoff coefficient | | I | Rainfall intensity in mm/h | | A | Catchment area in km² | With rainfall and catchment area held fixed, a higher runoff coefficient gives a larger estimated peak discharge. This explains why land cover, drainage capacity and storage matter in urban-flood answers. The lecture p 88 mixes its conversion factor and area/output labels. The expression above has consistent units. Its worked barren-land/township example, full conversions and extra exercises are available separately. [Optional solved calculations and their source →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--runoff/) --- ## TEE · Channel discharge and the purpose of desilting Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--channel-flow/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/channel-flow TEE core · taught concepts and descriptive answers; extended sums are optional Discharge is the volume of water passing a channel cross-section per unit time. M2 p 100 uses this relationship to explain desilting: $$ Q=A_{flow}v $$ | Symbol | Meaning | | --- | --- | | Q | Discharge in m³/s | | A\_flow | Flowing cross-sectional area in m² | | v | Average velocity in m/s | Silt or obstruction can reduce the available flowing area. Removing it may restore conveyance. Actual flow also depends on velocity, downstream water level, slope and channel condition, so desilting alone does not guarantee flood prevention. Channel cross-section is different from the rainfall catchment area in the runoff formula. [Optional solved calculations and their source →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--channel-flow/) --- ## TEE · Seven engineering and catchment measures for floods Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--engineering/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/engineering TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Structural flood measures change physical storage, conveyance or protection. Their effectiveness depends on design, operation, maintenance and the wider river basin. **Simple meaning.** Paani ko store karo, safe rasta do ya barrier lagao—but downstream ka risk bhi dekho. | Measure | How it helps | Important limitation | | --- | --- | --- | | Reservoirs | Store part of an incoming flood and release it in a controlled manner, reducing downstream peak flow. | Need available storage, safe operations and downstream warnings. | | Drainage improvement | Remove bottlenecks and maintain drains and outfalls. | A high tide or full receiving river can still block discharge. | | Embankments / levees | Form raised barriers to keep water within a channel. | Can breach or be overtopped; they do not eliminate the flood volume. | | Diversion channels | Route excess water to a designed bypass or storage area. | Must not transfer unacceptable risk to other communities. | | Channelisation | Modify channel course or section to improve conveyance. | Can accelerate flow and increase downstream risk or damage habitats. | | Watershed management | Use vegetation, contour bunds, trenches and suitable check dams to slow runoff and reduce erosion. | Performance depends on terrain and maintenance; cannot stop every extreme event. | | Channel improvement | Target widening, deepening, obstruction removal, bank protection and connected culverts. | Silt may return; engineering and environmental assessment are necessary. | ## Reservoir operation, in plain steps 1. Forecast inflow and check the available flood-storage space. 2. Operate according to approved rules and real-time conditions. 3. Coordinate safe releases and warn downstream authorities. 4. Monitor water levels and infrastructure continuously. ## Maintaining embankments Inspect for cracks, erosion, seepage and burrows; repair weaknesses and protect banks. Keep emergency plans for overtopping and breach. A false sense of complete safety can encourage more exposed development behind a barrier. ### Practice question. Explain any three structural flood mitigation measures. [3 practice marks] #### Answer 1. **Reservoir storage:** retain part of a flood inflow and release water in a controlled manner to lower the downstream peak. 2. **Embankments:** provide raised barriers that limit river overflow; inspection and maintenance reduce breach risk. 3. **Drainage and channel improvement:** remove blockages and bottlenecks and restore designed conveyance so excess water drains safely. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Store, convey, protect; inspect and maintain. --- ## TEE · Flood mapping, land-use control and floodplain zoning Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--zoning/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/zoning TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Floodplain zoning regulates the use of land according to flood hazard. It aims to keep vulnerable activities out of dangerous locations and preserve space for floodwater. **Simple meaning.** Map batata hai paani kahan aa sakta hai; zoning decide karti hai wahan kya banana theek hai. ## From map to decision 1. Collect past flood records, rainfall, river-flow data and elevation information. 2. Use hydrological/hydraulic analysis and remote sensing to identify likely depth, extent and flow conditions. 3. Overlay settlements, hospitals, roads, livelihoods and vulnerable groups. This adds exposure and vulnerability to a hazard map. 4. Set appropriate land-use conditions and protect floodways and storage areas. 5. Plan evacuation routes and shelter locations; update maps and enforce regulations. **Land-use control** is the broader planning process; **floodplain zoning** is its flood-risk-specific application. A flood map informs a decision; it does not remove water by itself. Parks or agriculture can be more suitable than permanent dense housing in some high-risk areas, subject to local conditions and safe use. ## What does a “100-year flood” mean? Under a stationary statistical model, an event with a 100-year return period has a 1% chance of being equalled or exceeded in any given year. It can occur in consecutive years. It does not promise 99 safe years. Flood-frequency estimates are uncertain and may change as climate, catchments or data change. $$ p=1/T;\quad T=100\Rightarrow p=0.01=1\% $$ ### Practice question. Explain floodplain zoning and its importance. [3 practice marks] #### Answer Floodplain zoning divides flood-prone land according to risk and regulates permitted development. 1. It limits exposure by restricting vulnerable settlements and critical facilities in high-risk zones. 2. It preserves natural drainage and floodwater storage, reducing obstruction and encroachment. 3. It supports safer growth, evacuation planning and lower future rescue and recovery costs. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Map the hazard; regulate the exposure. --- ## TEE · Flood impacts, benefits and safe management through the cycle Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/floods--response/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/floods/response TEE core · taught concepts and descriptive answers; extended sums are optional **Definition.** Flood management addresses immediate danger, long-term losses and natural floodplain processes. Beneficial seasonal flooding and destructive inundation are not the same outcome. **Simple meaning.** Natural flood pulse useful ho sakta hai; exposed city ka destructive flood alag outcome hai. | Loss category | Example | | --- | --- | | Human / social | Drowning, injuries, displacement, interrupted schooling and distress. | | Economic | Crop damage, lost wages, business shutdown and repair costs. | | Infrastructure | Damaged roads, drains, power and drinking-water systems. | | Environmental / health | Erosion, contamination, habitat damage and increased disease risk where sanitation fails. | ## Why some floods have benefits Seasonal flood pulses can deposit fertile sediment, recharge groundwater, sustain wetlands and support fish breeding. Benefits depend on water quality, timing and magnitude. Floodwater is not automatically clean; it can spread sewage and chemicals. Do not write that all floods “purify water”. ## Before, during and after 1. **Before:** maintain drainage, check warnings, identify high ground and safe shelters, prepare medicines and essentials, waterproof documents and plan accessible evacuation. Move early when authorities advise. 2. **During:** use safe evacuation routes; avoid walking or driving through floodwater, underpasses and damaged electrical areas. Do not delay safe evacuation to save valuables. 3. **After:** return only when cleared, have damaged structures and electrical systems checked, use safe drinking water, discard contaminated food and support cleanup and disease surveillance. If a building has an upper floor, moving upwards may be an emergency refuge when escape is unsafe; it is not a substitute for early authorised evacuation. Never enter a closed attic without an escape route or assume a building is structurally safe. ### Practice question. State two beneficial and two harmful effects of floods. [2 practice marks] #### Answer **Benefits:** deposition of nutrient-rich sediment can improve floodplain fertility; infiltration can recharge groundwater and wetlands. **Harm:** fast or deep floodwater can cause deaths and property damage; contaminated water and disrupted services can create health and livelihood losses. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Life first; do not enter floodwater. --- ## TEE · Drought types, causes and consequences Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/drought-landslides--drought/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/drought-landslides/drought TEE · syllabus units 1–2 **Definition.** Drought is an abnormal period of water deficiency relative to a region’s needs and usual conditions. It develops through rainfall, soil moisture, water storage and demand—not simply one hot day. **Simple meaning.** Rain kam → soil dry → storage kam → life/economy affected; har step ka naam alag. | Type | Meaning | Example | | --- | --- | --- | | Meteorological | Precipitation is substantially below the normal pattern over a relevant period. | A poor monsoon. | | Agricultural | Soil moisture is insufficient for crop requirements at a growth stage. | A long dry spell during crop flowering. | | Hydrological | Reduced streamflow, reservoir storage or groundwater. | Low reservoir levels after successive deficient seasons. | | Socio-economic | Water shortage disrupts supply of goods or services relative to demand. | Insufficient water for drinking, irrigation and industry. | ## Why impacts vary Rainfall deficit is a trigger; high evaporation, water-intensive demand, depleted aquifers and poor storage can intensify shortages. Rain-fed farmers, livestock-dependent households and people with limited savings may be especially vulnerable. Agricultural drought can develop before large reservoirs become depleted; hydrological impacts can persist after rainfall improves. ### Practice question. Describe four types of drought with examples. [5 practice marks] #### Answer | Type | Description and example | | --- | --- | | Meteorological | Rainfall is below normal; a deficient monsoon is an example. | | Agricultural | Crop-root moisture is inadequate; crops suffer during a prolonged dry spell. | | Hydrological | River, reservoir or groundwater levels become abnormally low. | | Socio-economic | Water shortage disrupts livelihoods or essential supply, such as drinking water or industrial production. | #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. **Yaad rakho:** Rain, roots, reservoirs, requirements. --- ## TEE · Drought management through the full cycle Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/drought-landslides--drought-management/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/drought-landslides/drought-management TEE · syllabus units 1–2 **Definition.** Drought management reduces water demand and vulnerability, improves sustainable supply and activates assistance when monitored conditions deteriorate. **Simple meaning.** Drought ka solution sirf tanker nahi; demand, storage aur livelihood ko saath manage karo. 1. **Monitor and warn:** track rainfall, soil moisture, vegetation condition, reservoir levels and groundwater; use agreed triggers for action. 2. **Conserve the catchment:** restore vegetation, contour bunds and suitable recharge structures to improve infiltration and reduce erosion. 3. **Use water efficiently:** reduce distribution losses and apply suitable irrigation and water budgeting. Efficiency gains should not justify unlimited expansion of withdrawals. 4. **Adapt farming:** use locally suitable drought-tolerant varieties, adjust sowing and crop choices, diversify incomes and provide advisories. 5. **Protect basic needs:** prioritise safe drinking water, livestock support, food security and livelihood assistance based on transparent needs. 6. **Plan recovery:** restore productive assets, replenish water systems responsibly and revise demand and groundwater management. | Phase | Drought application | | --- | --- | | Mitigation | Recharge, watershed management, sustainable demand and resilient livelihoods. | | Preparedness | Water budgeting, crop contingency plans, monitoring and relief arrangements. | | Response | Emergency safe-water supply, livelihood and livestock assistance. | | Recovery | Restore farming and incomes, repair systems and review the causes of shortage. | ### Practice question. Explain five measures for drought mitigation and preparedness. [5 practice marks] #### Answer 1. **Early monitoring:** observe rainfall, storage and crops to initiate assistance before severe losses. 2. **Rainwater conservation:** use suitable harvesting and recharge structures with maintenance. 3. **Efficient water use:** reduce leaks and manage irrigation according to crop needs. 4. **Climate-resilient agriculture:** choose suitable crops and diversify livelihoods. 5. **Contingency planning:** organise drinking-water, fodder and livelihood support for vulnerable households. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. **Yaad rakho:** Monitor → conserve → use wisely → support → recover. --- ## TEE · Landslide types, causes and warning signs Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/drought-landslides--landslide/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/drought-landslides/landslide TEE · syllabus units 1–2 **Definition.** A landslide is downward movement of rock, debris or earth under gravity. Its movement may be falling, toppling, sliding, spreading or flowing. **Simple meaning.** Fall = girna; topple = palatna; slide = surface par sarakna; flow = behna. | Type | Movement | Illustration | | --- | --- | --- | | Fall | Material detaches and falls through air. | Rockfall from a steep cliff. | | Topple | A block rotates forward around a pivot or base. | Jointed rock columns lean and overturn. | | Slide | Material moves along a recognisable slip surface. | Rotational slide on a curved surface or translational slide on a plane. | | Flow | Material deforms and moves like a flowing mass. | Water-saturated debris flow. | | Spread | Extension and lateral movement, sometimes over a weak layer. | Ground spreading associated with liquefaction. | ## Why a slope becomes unstable 1. Rain infiltration raises pore-water pressure and can reduce effective resistance. 2. River erosion or road cutting removes support at the slope toe. 3. Earthquake shaking adds destabilising forces. 4. Weak or weathered rock and unfavourably oriented joints create possible failure surfaces. 5. Deforestation, added loads, excavation and poor drainage can increase susceptibility. Cracks, tilting trees or poles, new seepage and small falls can indicate instability, but no single sign reliably predicts every landslide. Report suspected movement and follow local evacuation advice; do not enter an active slide to investigate. ### Practice question. Explain the causes and characteristics of a topple landslide. [5 practice marks] #### Answer Toppling occurs when rock or soil blocks rotate forward about a pivot or base. It is common in steep jointed rock where discontinuities allow blocks to detach. Toe erosion, excavation, water in joints and shaking can reduce stability or supply an overturning force. A topple differs from a translational slide, where material mainly moves along a plane. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. **Yaad rakho:** Name the movement before explaining its cause. --- ## TEE · Landslide mitigation and land subsidence Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/drought-landslides--slope-management/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/drought-landslides/slope-management TEE · syllabus units 1–2 **Definition.** Landslide mitigation improves slope stability or reduces exposure. Land subsidence is sinking or settling of the ground surface; it is not simply another word for a landslide. **Simple meaning.** Landslide neeche slope par move karta hai; subsidence mein ground baithta hai. Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. Different measures address water, support and exposure. A real slope needs a geotechnical assessment. | Measure | Why it helps | | --- | --- | | Surface and subsurface drainage | Reduces infiltration and pore-water pressure when appropriately designed. | | Retaining structures / anchors | Provide support or restraint; design must suit the failure mechanism. | | Slope regrading and controlled excavation | Reduce unstable geometry and avoid removal of critical toe support. | | Vegetation / erosion control | Protect shallow soil and limit surface erosion; cannot stabilise every deep failure. | | Hazard zoning and construction control | Keep people and assets away from the most unstable sites. | | Monitoring and warning | Track movement and rainfall and prepare timely evacuation where feasible. | ## Subsidence: causes, effects and management Groundwater withdrawal can compact sediments; mining or underground void collapse can remove support; natural consolidation and dissolution can also cause settling. Uneven subsidence cracks foundations, damages pipelines and changes drainage. Management includes monitoring, regulating extraction and mining, treating voids where appropriate and avoiding unsafe sites. Rapid sinkhole collapse and gradual regional subsidence have different mechanisms and time-scales. ### Practice question. Recommend four mitigation measures for rainfall-triggered landslides. [5 practice marks] #### Answer 1. Provide suitable drainage to reduce water accumulation and pore pressure. 2. Stabilise the slope with appropriately designed retaining structures, anchors or regrading. 3. Control construction, loading and toe cutting in mapped unstable areas. 4. Monitor rainfall and slope movement and prepare evacuation plans; vegetation and erosion control can support shallow-slope protection. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. **Yaad rakho:** Drain water, support the slope, keep exposure low. --- ## TEE · Cyclone formation, eye and eyewall Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cyclones--formation/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cyclones/formation M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** A cyclone is an atmospheric circulation around a low-pressure centre. A tropical cyclone is an organised rotating storm over warm tropical or subtropical waters, with strong winds, rain and potentially storm surge. **Simple meaning.** Warm sea fuel deta hai; low pressure hawa kheenchta hai; rotation storm ko organise karti hai. Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Warm moist air feeds the storm. The eyewall surrounds the relatively calm eye in a mature intense tropical cyclone. 1. Warm ocean water supplies moisture and energy by evaporation. Typical favourable sea-surface temperatures are around 26–27°C or higher over adequate depth. 2. Warm moist air rises; condensation releases latent heat, supporting further rising motion. 3. Air flows towards the low-pressure centre. Earth’s rotation helps organise the circulation; systems do not usually form right at the equator. 4. With favourable conditions such as sufficient moisture and limited disruptive vertical wind shear, the system organises and intensifies. 5. A mature system may develop an eye surrounded by an eyewall. It weakens when it loses favourable ocean energy or encounters hostile atmospheric conditions. | Part | Meaning | | --- | --- | | Eye | Relatively calm central region with descending air in a well-developed cyclone. | | Eyewall | Ring of intense convection; strongest winds and heavy rainfall are commonly found here. | | Rainbands | Spiral bands of clouds and rain around the centre. | | Track | The path followed by the storm; forecasts have uncertainty. | ### Practice question. Explain the formation of a tropical cyclone. [3 practice marks] #### Answer 1. Warm ocean water supplies moist air; the air rises and condensation releases heat. 2. The low-pressure system draws in more air, which rotates under the Coriolis effect. 3. When atmospheric conditions remain favourable, organised thunderstorms intensify around the centre, forming a mature cyclone that may contain an eye and eyewall. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Warm water → moist rising air → organised low-pressure circulation. --- ## TEE · Cyclone names, types and the three main hazards Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cyclones--hazards/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cyclones/hazards M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** The principal tropical-cyclone hazards are strong winds, heavy rainfall and storm surge. Their combined effects can create cascading damage. **Simple meaning.** Cyclone ka damage sirf hawa nahi: wind + rain + sea water. | Hazard | Mechanism | Damage | | --- | --- | --- | | Wind | Strong pressure gradients drive fast winds. | Roof damage, flying debris, fallen trees and power lines. | | Rain | Intense rainfall produces runoff. | River/urban flooding and landslides. | | Storm surge | Wind pushes sea water towards shore; low pressure adds a smaller contribution. | Coastal inundation, saltwater intrusion and erosion. | **Storm tide** combines astronomical tide and storm surge; waves and river flooding can compound impacts further. A tsunami is a different process, usually generated by sudden displacement of the water column. ## Names and classifications without mixing systems Hurricane is the regional name used in the Atlantic and northeast Pacific; typhoon in the northwest Pacific; tropical cyclone or cyclonic storm is used in the Indian Ocean context. A tornado is a small-scale rotating column connected to a thunderstorm and is **not** a South American synonym for tropical cyclone. A mesocyclone is a rotating thunderstorm updraft. Polar and extratropical cyclones occur in different environments and should not be described as identical warm-ocean systems. In the Northern Hemisphere, cyclonic circulation is anticlockwise; in the Southern Hemisphere, clockwise. India’s Bay of Bengal and Arabian Sea coasts both face serious cyclone risk. Not every Indian cyclone is moderate. ## Wind categories need their own units and definitions The PPT shows both a Saffir–Simpson hurricane image and a gust-based five-category table. They are not interchangeable with IMD’s North Indian Ocean classification. Use the named system supplied in a question; do not mix gust speed with sustained wind speed. The key M2 concepts are formation, hazards, warnings and mitigation. ### Practice question. Describe the three major destructive effects of cyclones. [3 practice marks] #### Answer 1. **Strong winds:** damage roofs and lifelines and produce dangerous flying debris. 2. **Heavy rainfall:** causes river and urban flooding and can destabilise slopes. 3. **Storm surge:** raises coastal water levels, inundates settlements and contaminates freshwater and farmland with salt water. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Wind, rain, surge. --- ## TEE · IMD’s four warning stages and protective actions Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cyclones--warnings/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cyclones/warnings M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** Cyclone warnings provide advance information on likely coastal effects, allowing authorities and communities to prepare, evacuate and protect essential services. **Simple meaning.** 72 → 48 → 24 → 12; last wala outlook bhi landfall se pehle aata hai. | Stage | Usual lead time in the lecture | What it supports | | --- | --- | --- | | Pre-cyclone watch | About 72 hours before adverse weather | Initial readiness and review of plans. | | Cyclone alert | About 48 hours before adverse weather | Mobilise resources, shelters and evacuation arrangements. | | Cyclone warning | About 24 hours before adverse weather | Implement protective action based on the latest official advice. | | Post-landfall outlook | About 12 hours before landfall | Prepare inland areas for expected track and adverse weather after landfall. | The name **post-landfall outlook** describes the period forecast, not the time at which it is issued. Its 12-hour lead is before landfall. Forecasts can be updated as the storm develops. Cyclones can be forecast days ahead, with uncertainty; the claim that advance forecasts are impossible is incorrect. ## Before impact Follow official warnings; move from unsafe coastal areas to designated shelters when instructed. Arrange transport for people needing assistance, carry essential medicines and documents, secure loose objects, and prepare backup lighting and communication. Fishermen should follow official sea warnings. ## During and after Remain in a safe shelter away from glass, avoid travel and floodwater, and follow official instructions. A temporary calm may be the eye; it does not mean the storm is over. Wait for official clearance before returning; avoid damaged structures, lines and contaminated water. ### Practice question. List the four stages of cyclone warning with their lead times. [3 practice marks] #### Answer 1. Pre-cyclone watch: about 72 hours before adverse weather. 2. Cyclone alert: about 48 hours before adverse weather. 3. Cyclone warning: about 24 hours before adverse weather. 4. Post-landfall outlook: about 12 hours before landfall, describing likely inland effects after crossing. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Watch → alert → warning → outlook. --- ## TEE · Cyclone risk reduction: shelter, construction and nature Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cyclones--mitigation/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cyclones/mitigation M2 PPT pp 127–141 · syllabus units 1–2 **Definition.** Cyclone mitigation reduces exposure and structural vulnerability, while preparedness makes warnings actionable. **Simple meaning.** Shelter sirf building nahi—us tak safe pahunchne ka plan bhi chahiye. | Measure | How it helps | | --- | --- | | Hazard and risk mapping | Identify zones exposed to wind, surge and flooding; include people and lifelines. | | Land-use planning | Keep critical facilities and vulnerable development away from mapped dangerous locations. | | Engineered construction and retrofitting | Provide appropriate connections and wind-resistant design; qualified engineers assess existing structures. | | Accessible cyclone shelters | Provide protected refuge with safe approaches, water, sanitation and arrangements for different needs. | | Flood and drainage management | Address rain flooding and coastal inundation alongside wind damage. | | Mangroves and vegetation | Can reduce wave energy and erosion in suitable locations; cannot guarantee protection against every surge. | | Community participation | Map local resources, practise evacuation and support households needing assistance. | Do not use a generic roof-slope instruction as a complete cyclone design rule. Roof shape, connections, site and applicable standards all matter. Vegetation supplements engineered and organisational protection; it does not replace evacuation from a dangerous coast. ### Practice question. Explain three cyclone mitigation and preparedness measures. [3 practice marks] #### Answer 1. **Resilient construction and land use:** build to suitable wind-resistant standards and avoid high-risk surge zones. 2. **Shelters and evacuation:** provide accessible shelters, safe roads and rehearsed transport arrangements. 3. **Warnings and community readiness:** communicate official forecasts clearly and train volunteers and residents to act in time. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Map risk, strengthen structures, make evacuation possible. --- ## TEE · Tsunami: generation, warning and protection Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/natural-hazards--tsunami/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/natural-hazards/tsunami TEE · all remaining named natural hazards in unit 1 **Definition.** A tsunami is a series of long waves caused by rapid displacement of a large water volume, commonly by an undersea earthquake, and sometimes by a landslide or volcanic process. **Simple meaning.** Sea ka achanak peeche jaana sightseeing signal nahi, danger signal ho sakta hai. ## How it develops 1. An undersea disturbance displaces water. 2. Long waves travel across the sea; in deep water they may have small height but very long wavelength. 3. As the waves enter shallow water, their speed decreases and their height and run-up can increase, producing damaging coastal currents and inundation. Not every earthquake causes a tsunami. Ordinary wind waves and storm surge have different mechanisms. The first wave need not be the largest, and dangerous currents can persist. ## Warning and risk reduction India’s tsunami warning arrangements combine seismic information, ocean observations and models through INCOIS/ITEWC. Risk mapping, marked evacuation routes, elevated safe destinations, drills and coastal land-use planning make warnings useful. Natural signs such as strong or long coastal shaking or unusual sea withdrawal demand prompt protective action; do not approach the shore to watch. ### Practice question. Describe tsunami generation and two mitigation measures. [5 practice marks] #### Answer A tsunami begins when an undersea disturbance rapidly displaces a large volume of water. The resulting long waves can grow and inundate land near the coast. 1. **Warning and evacuation:** combine monitoring with clear warnings, marked routes and accessible high-ground shelters. 2. **Risk-informed land use:** restrict vulnerable development in mapped inundation areas and strengthen critical infrastructure. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. **Yaad rakho:** Displacement → travelling waves → coastal inundation. --- ## TEE · Volcanoes and avalanches Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/natural-hazards--volcano-avalanche/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/natural-hazards/volcano-avalanche TEE · all remaining named natural hazards in unit 1 **Definition.** Volcanic eruptions release magma, gases and fragmented material at the surface. Avalanches are rapid movements of snow and ice, sometimes with debris, down a slope. **Simple meaning.** Volcano mein material Earth se bahar aata hai; avalanche mein unstable snow slope se neeche aati hai. | Volcanic hazard | Why it matters | | --- | --- | | Lava | Burial and burning of structures and land. | | Ashfall | Respiratory irritation, reduced visibility, machinery and roof-loading problems. | | Pyroclastic density currents | Very hot, fast-moving mixtures of gas and particles. | | Lahars | Water-mixed volcanic debris flows along valleys. | | Gases | Toxicity and asphyxiation risks in dangerous concentrations. | Volcano monitoring uses seismic activity, ground deformation and gas observations. Management relies on hazard zones, evacuation and protection of critical facilities. Barren Island in the Andaman region is an active Indian volcano; ancient Deccan volcanic rocks are not evidence of an ongoing local eruption. ## Avalanche mechanism and protection Snow becomes unstable when loading, warming or a weak layer permits failure. A slab avalanche releases a cohesive snow layer; loose-snow avalanches start with unconsolidated snow. Heavy snowfall, wind loading, temperature changes and disturbance can contribute. Use avalanche zoning, official forecasts, controlled access, protective structures and trained professional mitigation. Controlled explosive release is a specialist operation, not a public safety procedure. ### Practice question. Differentiate a landslide from an avalanche. [2 practice marks] #### Answer A **landslide** is gravity-driven movement of rock, debris or earth down a slope. An **avalanche** primarily involves rapidly moving snow and ice. Both can be triggered by instability and disturbance, but avalanche planning depends strongly on snowpack and weather conditions. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. **Yaad rakho:** Hazard zones and monitoring guide safe access. --- ## TEE · Climate extremes, heat waves and cold waves Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/natural-hazards--climate/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/natural-hazards/climate TEE · all remaining named natural hazards in unit 1 **Definition.** Climate extremes are unusually severe conditions relative to a location and season, such as extreme heat, cold, heavy rainfall and drought. Climate change can alter their likelihood or intensity, but event attribution needs evidence. **Simple meaning.** Heat aur cold mein same “stay indoors” line se kaam nahi—hazard ke hisaab se action badlo. | Driver | Mechanism and example | | --- | --- | | Greenhouse-gas accumulation | Raises background temperatures and changes the conditions in which heat and rainfall extremes occur. | | Land-use change | Loss of vegetation and urban heat islands increase local heat stress and runoff. | | Large-scale variability | Patterns such as El Niño can alter regional rainfall and temperatures. | | Persistent weather circulation | Blocking or prolonged dry / wet conditions can sustain extremes. | ## Heat and cold: compare appropriate actions | Need | Heat wave | Cold wave | | --- | --- | --- | | Reduce exposure | Avoid unnecessary outdoor exertion at the hottest times; provide shaded rest. | Limit cold exposure and provide warm shelter. | | Clothing | Use suitable light, breathable clothing and sun protection. | Use dry warm layers and protect extremities. | | Water / food | Maintain hydration and safe water access. | Maintain nutrition and hydration; do not mistake absence of thirst for no need. | | Households / workplaces | Cool rooms, adjust work hours and check at-risk people. | Safe heating, ventilation and checks on at-risk people. | | Avoid | Never leave people or animals in parked closed vehicles; do not ignore severe symptoms. | Do not burn charcoal or run generators indoors; carbon monoxide can kill. | Prolonged high heat increases demand for water and power and can harm crops. Severe cold and frost can harm people, livestock and crops and disrupt transport. Children, older adults, outdoor workers and people without adequate shelter need accessible support. Severe confusion, collapse or breathing difficulty requires urgent medical help; exam notes are not a treatment protocol. ### Practice question. Explain four causes or drivers of climate extremes with examples. [5 practice marks] #### Answer 1. Greenhouse-gas-driven warming increases the background for extreme heat. 2. Deforestation and urban paving change local heat and water balance, intensifying urban heat or runoff. 3. Natural climate variability such as El Niño alters rainfall and temperature patterns. 4. Persistent circulation patterns can maintain dry spells, heat or prolonged rainfall. These interact; a specific event should not be assigned one cause without evidence. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Protect people, water, power, crops and livelihoods. --- ## TEE · Industrial gas leaks and chemical disasters Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/human-hazards--gas/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/human-hazards/gas TEE · syllabus unit 1 **Definition.** A chemical disaster occurs when hazardous substances are released or react in a way that seriously harms people, property or the environment. **Simple meaning.** Gas ka naam aur behaviour matter karta hai; har gas ke liye ek hi jugaad safe nahi. ## Causes and pathways Equipment failure, corrosion, unsafe storage, uncontrolled process conditions, poor maintenance and inadequate safety management can release hazardous material. A toxic cloud can move beyond a factory boundary; the hazard depends on the chemical, weather and release conditions. Smell alone is not a reliable warning. ## Six preparedness strategies with reasons 1. **Inventory and risk assessment:** identify chemicals, exposure routes and credible release scenarios to plan suitable protection. 2. **Engineering safeguards and maintenance:** inspect equipment, alarms and containment so failures are detected and reduced. 3. **On-site and off-site plans:** coordinate the industry with local authorities, hospitals and communities beyond the gate. 4. **Detection and warning:** use suitable monitoring and a clear public communication chain. 5. **Training and drills:** practise recognition, reporting, authorised isolation, evacuation or shelter procedures and accountability. 6. **Medical and recovery arrangements:** provide responders with chemical information, arrange specialised care and plan safe cleanup by trained teams. Public protective action must follow the chemical-specific official instruction. “Always run in one fixed direction” or “cover the face with any cloth and you are safe” is not a dependable universal rule. Untrained people must not enter a contaminated area to rescue or clean it. ### Practice question. Recommend three preparedness strategies for industrial gas leaks. [3 practice marks] #### Answer 1. Assess chemical hazards and maintain detection, containment and safety systems. 2. Prepare coordinated on-site and off-site plans, including accessible public warnings and medical arrangements. 3. Train workers and neighbouring communities through safe drills so reporting and protective actions are understood. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. **Yaad rakho:** Identify → prevent → detect → coordinate → practise. --- ## TEE · Radiation leaks and toxic waste disposal Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/human-hazards--radiation-waste/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/human-hazards/radiation-waste TEE · syllabus unit 1 **Definition.** A radiological emergency involves hazardous radiation exposure or loss of control of radioactive material. Toxic waste can harm health and ecosystems when stored, transported or disposed of unsafely. **Simple meaning.** Waste gayab nahi hota; galat disposal se hazard doosri jagah shift hota hai. | Term | Meaning | | --- | --- | | Exposure | Radiation reaches a person; this does not automatically mean radioactive material is deposited on them. | | Contamination | Radioactive material is present where it should not be, on surfaces or within material or people. | | Containment | Barriers keep hazardous material from spreading. | Radiological prevention uses secure sources, multiple safety barriers, monitoring, trained operators and emergency plans. Trained response involves identifying the hazard, controlling access, monitoring and following specialist directions. Radiation cannot be reliably detected by human senses. Do not self-administer iodine or assume it protects against every type of radiation. ## Toxic-waste pathway Poorly contained waste can leak into soil, move into groundwater or surface water, enter food chains and create chronic exposure. Prevention requires reducing hazardous waste where possible, separating incompatible waste, labelled secure storage, authorised transport, treatment and monitored disposal. A normal municipal dump is not a substitute for a hazardous-waste facility. ### Practice question. Explain measures to reduce risk from toxic waste disposal. [3 practice marks] #### Answer 1. Identify and segregate hazardous waste to prevent incompatible mixing and uncontrolled reactions. 2. Use secure labelled storage and authorised transport and treatment systems. 3. Monitor disposal sites and surrounding water, maintain records and prepare a leak-response plan so contamination is detected and contained by trained personnel. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. **Yaad rakho:** Contain, track, treat and monitor. --- ## TEE · Oil spills and forest fires Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/human-hazards--oil-fire/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/human-hazards/oil-fire TEE · syllabus unit 1 **Definition.** An oil spill releases petroleum into water or land. A forest fire is uncontrolled burning of vegetation; its ignition can be natural or human-induced. **Simple meaning.** Ignition se start, dry fuel aur wind se spread—cause aur spread factor ko alag samjho. ## Oil spill: source → impact → response Tanker collisions, pipeline failures and offshore accidents can release oil. Oil can coat organisms and shorelines, contaminate habitats and harm fisheries and tourism. Prevention includes maintenance, navigation safety and emergency planning. Specialist response selects containment booms, recovery equipment and cleanup methods according to oil type, waves, currents and sensitive habitats. Dispersants and burning have trade-offs and require competent authorisation. ## Forest fires: five common contributors 1. Human negligence such as unattended fire or discarded burning material. 2. Land clearing or other deliberate burning escaping control. 3. Lightning as a natural ignition source. 4. Dry vegetation and prolonged hot, dry weather that provide combustible fuel. 5. Wind and slope that accelerate spread; these are spread factors rather than ignition sources. ## Response and mitigation Detect and report rapidly; warn and evacuate threatened communities; control access; deploy trained forest/fire teams; protect critical assets; monitor for re-ignition. Fuel management, suitable firebreaks, community awareness and satellite/fire-watch monitoring reduce risk. Firebreaks and suppression can be overwhelmed by severe conditions. The public should not attempt dangerous forest firefighting. ### Practice question. Explain causes and management of forest fires. [5 practice marks] #### Answer Forest fires may start through human negligence, escaped burning or lightning. Dry fuel, heat, wind and slope influence spread. Risk reduction uses awareness, monitoring and appropriate fuel management. Response requires rapid reporting, warning and evacuation, access control and trained fire-service or forest-department suppression, followed by patrol for re-ignition and ecosystem recovery. #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. **Yaad rakho:** Detect early; protect people; use trained response. --- ## TEE · Terrorism and cascading technological disasters Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/human-hazards--terrorism/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/human-hazards/terrorism TEE · syllabus unit 1 **Definition.** Terrorism uses deliberate violence or threats to create fear and pursue objectives. Disaster management focuses on protection, coordinated emergency response and recovery from its consequences. **Simple meaning.** Main event ke baad second hazard bhi ho sakta hai—broken gas line, fire, service failure. Impacts can include casualties, damaged transport or buildings, service disruption, psychological trauma and long-term livelihood loss. Preventive security, intelligence and law enforcement have specialist roles; emergency planning must also prepare hospitals, communication systems, evacuation support and family information services. 1. Maintain coordinated plans among police, fire, health and local authorities. 2. Provide safe public reporting and clear instructions without spreading rumours or revealing operational details. 3. Train institutions in evacuation or other protective action appropriate to the threat and location. 4. Prepare trauma care, reunification, mental-health support and recovery of essential services. 5. Protect civil rights and avoid blaming communities for individual acts. A **cascading disaster** occurs when one event triggers another: an earthquake damages a chemical plant, for example. Planning should therefore consider linked natural and technological hazards rather than treating each hazard in isolation. ### Practice question. State the disaster management priorities following a terrorist incident. [3 practice marks] #### Answer Priorities are protecting people from continuing danger, coordinated rescue and emergency medical care, controlled access, reliable public communication and restoration of essential services. Recovery includes family support, psychosocial care and fair assistance. Security operations remain with trained competent authorities. #### Illustrative application · A disrupted public service When an incident affects a crowded transport facility, responders need verified information, safe access, care for affected people and coordinated public updates. Speculating about the cause can spread fear; operational measures must follow the identified hazard. **Yaad rakho:** Protect life, coordinate information, support recovery. --- ## TEE · Principles of effective disaster management Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/principles--principles/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/principles/principles M2 PPT pp 1–14 · unit 3 **Definition.** A principle is a basic rule that guides decisions across different disasters. Effective management is comprehensive, proactive, coordinated, inclusive and risk-based. **Simple meaning.** Sirf rescue team bhejna DM nahi; pehle se plan, clear roles aur sabke liye access bhi chahiye. | Principle | Meaning | Application | | --- | --- | --- | | Comprehensive | Address all hazards and all phases. | A coastal plan considers wind, flooding, health and recovery. | | Proactive / prevention-oriented | Reduce risk before an event. | Inspect vulnerable structures before the monsoon. | | Risk-based | Give priority according to likelihood and consequences. | Protect hospitals and high-risk settlements first. | | Coordinated | Assign responsibilities and share information. | Police, health, municipal and rescue agencies use a joint plan. | | Participatory and inclusive | Involve affected groups in decisions. | Design evacuation support with people with disabilities. | | Sustainable | Avoid creating future social or environmental harm. | Rebuild outside unstable slopes and preserve drainage. | | Flexible and evidence-informed | Adapt as conditions and verified information change. | Change a rescue route when a bridge becomes unsafe. | ### Practice question. State and explain three basic principles of disaster management. [3 practice marks] #### Answer 1. **Comprehensive approach:** plan for multiple hazards and cover mitigation, preparedness, response and recovery. 2. **Coordination:** clearly allocate agency responsibilities and share reliable information to avoid delays or duplicated work. 3. **Inclusion:** involve communities and provide accessible warnings, shelters and assistance according to need. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. **Yaad rakho:** All hazards, all phases, all people. --- ## TEE · The ten general ethical principles in the lecture Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/principles--general-ethics/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/principles/general-ethics M2 PPT pp 1–14 · unit 3 **Definition.** General ethical principles guide fair decisions before, during and after disasters. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. ## Two distinctions that often cause confusion **Non-discrimination** rejects unfair exclusion. **Impartiality** allocates help according to need. Giving additional evacuation support to a person who cannot walk is impartial assistance, not discrimination. **Neutrality** means not taking sides in conflict; it does not mean refusing to help. Humanitarian assistance can actively protect people while remaining neutral. ### Practice question. State and explain any three general ethical principles of disaster management. [3 practice marks] #### Answer 1. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 2. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 3. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. **Yaad rakho:** Help together; treat fairly; protect dignity; co-operate; prevent harm; communicate responsibly. --- ## TEE · Ethics before a disaster Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/principles--before/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/principles/before M2 PPT pp 1–14 · unit 3 **Definition.** Disaster ethics concerns fair, responsible decisions that respect human dignity and reduce avoidable harm. Before a disaster, it centres on prevention, information, participation and equitable preparedness. **Simple meaning.** Warning tab useful hai jab har affected insaan usse samajh bhi sake aur action bhi le sake. ## Understand each responsibility 1. **Provide reliable risk information.** Explain the hazard, likely impact and protective action in languages and formats people can understand. Unexplained technical data is not an effective warning. 2. **Allow participation and expression.** Residents should help shape local plans; workers should be able to raise safety concerns. Local knowledge identifies barriers that a map may miss. 3. **Protect vulnerable groups fairly.** Arrange accessible shelters, assistance, medicines and transport. Equal treatment does not always mean identical supplies. 4. **Educate and train.** Schools, hospitals, workplaces and tourist locations need drills and clear emergency procedures. 5. **Protect the environment and enforce prevention.** Healthy ecosystems, safe construction and accountable decisions reduce exposure and vulnerability. 6. **Plan evacuation responsibly.** Explain why, when, where and how evacuation will happen. Protect dignity, family unity and property as far as practicable. Necessary emergency powers must follow applicable law. 7. **Provide accountability and remedies.** People need ways to challenge unsafe decisions and report failures. ### Practice question. Explain ethical principles applicable before a disaster. [3 practice marks] #### Answer 1. **Information and participation:** provide reliable, accessible risk information and include residents in planning. 2. **Prevention and training:** implement safety measures and conduct drills in schools, workplaces and public places. 3. **Equitable protection:** make special arrangements for people with limited mobility, children and other at-risk groups, while protecting dignity and access to remedies. #### Illustrative application · Inclusive planning before the warning Before the cyclone season, a coastal village identifies residents who need evacuation assistance, checks accessible transport and shelter access, explains warnings in local languages, and invites residents to report gaps. These actions apply participation, reliable information and equitable protection before an emergency occurs. **Yaad rakho:** Before: inform, involve, train, protect. --- ## TEE · Ethics during a disaster Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/principles--during/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/principles/during M2 PPT pp 1–14 · unit 3 **Definition.** Humanitarian assistance should protect life and dignity and be allocated according to need, without discrimination, exploitation or corruption. **Simple meaning.** Relief need ke hisaab se; favouritism ya photo-op ke hisaab se nahi. ## From principle to action | Principle | What responders must do | | --- | --- | | Impartial assistance | Use transparent needs assessments; do not favour a religion, political group or social class. | | Dignity and privacy | Provide safe shelter, sanitation and privacy; obtain consent where possible and protect personal information. | | Inclusion | Provide accessible communication and assisted evacuation; avoid separating children from carers unnecessarily. | | Information and participation | Communicate the location of shelters, water, health services and registration points; listen to residents. | | Responder safety | Provide training, protective equipment, rest, coordination and psychological support. | | Social and environmental protection | Support family reunification; prevent unsafe waste disposal and further contamination. | Prioritising by urgent need differs from arbitrary favouritism. Clinical triage is performed by trained medical personnel using urgency and expected benefit; it should not be reduced to “always treat one age group first”. ### Practice question. Explain three ethical duties during disaster response. [3 practice marks] #### Answer 1. **Impartial relief:** distribute food, water and shelter according to assessed needs without discrimination. 2. **Respect for dignity:** protect privacy, personal safety, family unity and freedom from abuse. 3. **Accessible and safe assistance:** communicate clearly, support those needing help to evacuate, and protect rescue workers with equipment and training. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. **Yaad rakho:** During: save fairly, explain clearly, protect dignity. --- ## TEE · Ethics after a disaster and engineers’ responsibilities Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/principles--after/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/principles/after M2 PPT pp 1–14 · unit 3 **Definition.** Ethical recovery restores essential services, rights and livelihoods while reducing future risk. Urgency does not justify unsafe rebuilding or exclusion from assistance. **Simple meaning.** Recovery ka target bas purana normal nahi—safer normal hai. 1. **Restore social and economic rights:** reopen schools and healthcare, support housing and livelihoods, and provide mental-health care. 2. **Restore civil participation:** help replace identity documents, reunite families and keep affected residents involved in decisions. 3. **Protect property and culture:** use fair claims procedures when documents are lost; respect cultural practices and heritage. 4. **Rebuild safely:** assess sites, apply building standards and protect the environment. Temporary shelters should not become a substitute for durable recovery. 5. **Accountability:** disclose eligibility and spending, hear complaints and investigate abuse. ## Engineering and AI contributions | Before | During / immediately after | Recovery | | --- | --- | --- | | Civil: risk-informed design; mechanical: safe equipment; IT: secure backups; AI: assist analysis. | Assess damage safely, restore communication, support resource allocation and verified situational reports. | Rebuild lifelines safely; restore data and services; audit failures and improve designs. | AI estimates are decision-support, not automatic authority. Validate data, protect personal information, disclose uncertainty and retain human judgement for evacuation and relief decisions. ### Practice question. Explain the role of engineers in disaster management. [3 practice marks] #### Answer 1. **Before impact:** design resilient buildings and lifelines, map hazards and maintain warning and backup systems. 2. **During response:** assess infrastructure damage, restore emergency communications and support safe rescue logistics. 3. **During recovery:** restore services and rebuild to safer standards while reviewing the failures that increased losses. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. **Yaad rakho:** After: rights, livelihoods, safer rebuilding. --- ## TEE · NDMA, SDMA, DDMA, NDRF and NIDM Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/institutions--bodies/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/institutions/bodies M2 PPT pp 15–18 · syllabus unit 3 **Definition.** India’s disaster management framework distributes policy, planning and response responsibilities across national, state, district and local levels. **Simple meaning.** Authority plan banati hai, Force field operation karti hai, Institute training deta hai. Swipe across the diagram to read its labels ↔ ![From national policy to local action](https://deep-learning-study-room.vercel.app/dm/fig/institutions.e7262187f0.svg) Diagram: From national policy to local action. Labels: From national policy to local action | From national policy to local action | National: NDMA and Union government | Policy, planning framework, guidance and national support | State: SDMA and state departments | State plans, coordination, sector responsibilities and resources | District: DDMA and district administration | Local risk assessment, planning, coordination and implementation | Local authorities and communities | Warnings, preparedness, service delivery and assisted evacuation | Technical support | IMD: weather CWC: | floods INCOIS: tsunami | Other key roles | NDRF: specialist | response NIDM: training | and capacity Authorities plan and coordinate; technical agencies provide specialist information; response forces conduct specialised operations. | Body | Full name / leadership | Main role | | --- | --- | --- | | NDMA | National Disaster Management Authority; chaired by the Prime Minister | National policy, plans, guidelines and coordination for risk reduction and effective response. | | SDMA | State Disaster Management Authority; chaired by the Chief Minister | State policy, plans and coordination adapted to the state’s risks. | | DDMA | District Disaster Management Authority; headed by the District Magistrate / Collector / Deputy Commissioner | District planning, coordination, preparedness and local implementation; elected local representative has a co-chairing role under the Act. | | NDRF | National Disaster Response Force | Specialist response including search, rescue and disaster operations. | | NIDM | National Institute of Disaster Management | Training, capacity building, research and documentation. | | Local authorities | Municipalities, panchayats and local services | Maintain local services, implement safety measures and assist warnings, evacuation and relief. | An **authority** frames policy and coordinates. A **force** provides operational response. An **institute** develops skills and knowledge. They are not interchangeable. State and local services also respond; it is incorrect to suggest that only NDRF does rescue. ### Practice question. Differentiate between NDMA and NDRF. [2 practice marks] #### Answer **NDMA** is the apex disaster management authority that lays down policies, plans and guidelines and coordinates their implementation. **NDRF** is a specialised response force that carries out operations such as search and rescue. NDMA’s role is strategic and coordinating; NDRF’s role is primarily operational. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. **Yaad rakho:** A = Authority; F = Force; I = Institute. --- ## TEE · NDMA functions, policy and guideline themes Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/institutions--ndma/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/institutions/ndma M2 PPT pp 15–18 · syllabus unit 3 **Definition.** The Disaster Management Act, 2005, as amended in 2025, provides the institutional basis for India’s disaster management system. The National Policy on Disaster Management, 2009 emphasises prevention, mitigation, preparedness, participation and resilience. **Simple meaning.** Policy direction deti hai; guideline us direction ko practical actions mein badalti hai. ## NDMA functions: explain the verb, not just the name 1. **Policy and national planning:** establish the national approach and planning framework. 2. **Guidelines:** guide state authorities and central ministries in preparing plans and integrating risk reduction into development. 3. **Coordination:** coordinate implementation across institutions and sectors. 4. **Mitigation and capacity building:** recommend support for mitigation and promote preparedness, training and risk reduction. 5. **Institutional guidance:** guide disaster management capacity-building arrangements, including broad policy for NIDM. ## Guidelines listed in the lecture The lecture’s dated index groups practical guidance on earthquakes, floods and urban floods, cyclones, tsunami, drought, landslides and avalanches, chemical/biological/radiological events, heat and cold, GLOFs, lightning, boat safety, shelter, schools, hospitals, heritage, psychosocial care, relief standards and incident response. Understand their purpose: translate policy into hazard-specific and sector-specific action. The slide list is a historical teaching index, not a complete current catalogue. ### Practice question. Explain three functions of NDMA. [3 practice marks] #### Answer 1. **Policy and planning:** establish national disaster management policies and the national planning framework. 2. **Guidelines:** guide state authorities and ministries in preparing plans and incorporating prevention and mitigation into development. 3. **Coordination and capacity:** coordinate implementation, promote mitigation and preparedness and support institutional capacity building. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. For an answer asking “according to the lecture”, the PPT also explicitly lists approval of the National Plan and central ministry plans, recommending mitigation funds and assistance to affected countries as determined by the Central Government. Read the current-framework lesson below for the 2025 amendment and the distinction between the NDRF Force and Fund. **Yaad rakho:** Policy → plans → guidelines → coordination. --- ## TEE · Technical agencies and the warning-to-action chain Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/institutions--agencies/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/institutions/agencies M2 PPT pp 15–18 · syllabus unit 3 **Definition.** A technical agency measures or forecasts a hazard; disaster authorities and local services turn that information into protective action. **Simple meaning.** Forecast milna first step hai; last step logon ka safe action lena hai. | Agency | Relevant role | Example of action enabled | | --- | --- | --- | | IMD | India Meteorological Department: weather and cyclone monitoring and warnings | Coastal evacuation preparations after a cyclone warning | | CWC | Central Water Commission: river monitoring, flood forecasts and technical water-management support | Flood warnings and reservoir inflow planning | | INCOIS / ITEWC | Indian National Centre for Ocean Information Services / Indian Tsunami Early Warning Centre | Tsunami advisories based on seismic and ocean observations | | NCS | National Centre for Seismology: seismic monitoring and earthquake parameters | Rapid information on a detected earthquake | | ISRO / NRSC | Space-based observations, disaster mapping and decision support | Identify flood extent and exposed settlements | | GSI | Geological Survey of India: geological and landslide information | Landslide susceptibility studies and specialist advice | ### Practice question. Describe the role of the Central Water Commission in flood management. [3 practice marks] #### Answer 1. It monitors river conditions and issues flood and inflow forecasts for authorities. 2. It provides technical advice for flood management, river works and reservoir operation studies. 3. Its data supports warnings, evacuation decisions and coordinated planning with state agencies and IMD. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Measure → warn → decide → act. --- ## TEE · Current framework: the 2025 amendment; Force versus Fund Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/institutions--current-framework/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/institutions/current-framework M2 PPT pp 15–18 · syllabus unit 3 **Definition.** A disaster authority coordinates decisions, a response force supplies specialised personnel, and a response fund supplies financial assistance. Similar abbreviations do not make their functions identical. ## Read the full name before describing the role | Name | What it is | Correct example | | --- | --- | --- | | National Disaster Response Force (NDRF) | Specialist operational personnel and equipment | Teams conduct search and rescue. | | National Disaster Response Fund (NDRF) | A financial assistance mechanism | Approved assistance supports disaster-related needs. | | National Disaster Mitigation Fund (NDMF) | A fund supporting risk-reduction measures | Approved mitigation projects reduce future losses. | **Example.** In a flood, rescuing trapped residents is an operational task. Approving financial assistance is a funding decision. The same abbreviation NDRF can appear in both contexts, so write “Force” or “Fund” explicitly. ## What changed in 2025? The amendment enables states to constitute Urban Disaster Management Authorities for state capitals and municipal-corporation cities, except the NCT of Delhi and UT of Chandigarh. These authorities prepare urban plans and coordinate implementation. It mandates a national disaster database and gives the existing High-Level Committee statutory status. That committee approves assistance from the Response and Mitigation Funds. [Source: Ministry of Home Affairs, Rajya Sabha reply, 11 February 2026](https://www.mha.gov.in/MHA1/Par2017/pdfs/par2026-pdfs/RS11022026/1336.pdf). The core national → state → district framework still explains the lecture’s institution questions. **Yaad rakho:** Force = rescue team; Fund = financial help; Authority = planning and coordination. --- ## TEE · How an early warning system works Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/warnings--components/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/warnings/components M2 PPT pp 19–34 · unit 3 **Definition.** An early warning system links risk knowledge, hazard monitoring and forecasting, warning communication, and preparedness so people can act before or during the early stages of dangerous impacts. **Simple meaning.** Sensor ne danger dekha, lekin message ya transport nahi mila—to system adhura hai. Swipe across the diagram to read its labels ↔ ![Warning must reach the person who needs to act](https://deep-learning-study-room.vercel.app/dm/fig/warning-chain.6950d12628.svg) Diagram: Warning must reach the person who needs to act. Labels: Warning must reach the person who needs to act | Warning must reach the person who needs to act | 1 · Know risk | Who is exposed? | 2 · Monitor | Detect and forecast | 3 · Communicate | Trusted action | message | 4 · Act | Safe route and | shelter | Continuous review: did the message reach everyone, and could they act? A sensor alone is not an early warning system. Every link must work, including the last mile to people. | Component | Question answered | Flood example | | --- | --- | --- | | Risk knowledge | Who and what can be harmed? | Map low-lying settlements and people needing assistance. | | Monitoring and forecasting | What is developing and when might it affect us? | Combine rainfall, river gauges and forecast models. | | Warning communication | What should people understand and do? | Send an official message naming places, timing and safe actions. | | Preparedness / response capacity | Can people act on the message? | Open shelters and use rehearsed evacuation arrangements. | ## Where monitoring and evaluation fit Evaluate accuracy, lead time, coverage, comprehension and actual response; improve the system after drills and real events. The lecture groups the first two components under “risk knowledge and monitoring” and lists evaluation as a fourth level. The widely used four-pillar model above separates risk knowledge from forecasting and treats evaluation as continuous. Both descriptions require communication and action. ### Practice question. Explain the components of an early warning system. [3 practice marks] #### Answer 1. **Risk knowledge:** identify hazards, exposed areas and vulnerable populations. 2. **Monitoring and forecasting:** collect observations and estimate likely hazardous developments. 3. **Communication:** disseminate authoritative, timely, understandable warnings. 4. **Response capability:** maintain plans, shelters, trained personnel and drills so warnings lead to protective action. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. **Yaad rakho:** Know risk → detect → communicate → act. --- ## TEE · Types of warnings, communication and failure points Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/warnings--types/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/warnings/types M2 PPT pp 19–34 · unit 3 **Definition.** Warning systems can be classified by hazard, operating scale and whether they address one or multiple hazards. **Simple meaning.** Message ka “kya, kahan, kab, ab kya karna hai” clear hona chahiye. | Basis | Examples | Meaning | | --- | --- | --- | | Hazard | Flood, cyclone, tsunami, drought, earthquake shaking warning | Methods and available warning time differ by physical process. | | Operating level | Local, national, regional / international | A village siren and a regional tsunami centre serve different functions. | | Hazard scope | Single-hazard or multi-hazard | A multi-hazard platform coordinates several hazards and their cascading effects. | ## Communication channels Use a combination of sirens, public-address systems, radio, television, SMS or cell broadcasts, phone calls, official apps and websites, social media, local volunteers, police and community networks. Sirens attract attention but need a known meaning. Text messages require literacy and connectivity. Radio and trained local volunteers can provide backup during power or mobile-network failures. ## A useful warning includes 1. The issuing authority and issue time. 2. The hazard, affected locations and likely time window. 3. Expected impacts and uncertainty where relevant. 4. Clear protective action: where to go, what to avoid and whom to contact. 5. Where to obtain the next official update. ### Practice question. Why can an accurate warning fail to prevent a disaster? [3 practice marks] #### Answer 1. It may not reach everyone because of power loss, network failure or inaccessible language. 2. People may not understand or trust it if it lacks a clear source and instructions. 3. Even informed people may lack transport, accessible shelters or enough time to act. Therefore forecasting must be combined with communication and preparedness. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. **Yaad rakho:** Official source + place + time + impact + action. --- ## TEE · Four operating levels of early warning systems Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/warnings--levels/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/warnings/levels M2 PPT pp 19–34 · unit 3 **Definition.** An operating level describes the geographic and institutional scale at which a warning system works. It is different from a warning stage or the components of a system. | Level | Who / what it serves | Example | | --- | --- | --- | | Community / local | A settlement, municipality or local community. | A village flood gauge, siren and trained evacuation volunteers. | | National | A national technical agency and national coordination system. | IMD cyclone monitoring and warnings for India. | | Regional | Several countries or a wider geographic region sharing a hazard. | An Indian Ocean tsunami warning arrangement connecting national centres. | | Global | International monitoring and information across the world. | International health or food-security monitoring and alerts. | ## Three different lists: read the question carefully | Question asks for… | Give this list | | --- | --- | | Operating levels | Local → national → regional → global. | | EWS components | Risk knowledge → monitoring/forecasting → communication → response capability. | | IMD cyclone warning stages | Pre-cyclone watch → cyclone alert → cyclone warning → post-landfall outlook. | ### Practice question. Explain the four operating levels of early warning systems. [3 practice marks] #### Answer A local system serves a community, such as a flood siren network. A national system is operated by a national agency such as IMD. A regional system coordinates information for several countries exposed to a common hazard, such as Indian Ocean tsunami risk. A global system monitors and shares international information, such as global health or food-security alerts. #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. **Yaad rakho:** Level = kis area tak system kaam karta hai; stage = warning process ka kaunsa step hai. --- ## TEE · Training and drills: purpose, assembly point and full planning sequence Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/training--drills/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/training/drills TEE · syllabus unit 4 **Definition.** Training develops knowledge and skills. A drill rehearses a defined action or procedure. An exercise tests wider decisions and coordination in a simulated situation. **Simple meaning.** Plan paper par sahi lag sakta hai; drill batati hai log actual mein kya kar paa rahe hain. | Activity | Example | | --- | --- | | Awareness | Explain warning signals and exits. | | Skills training | Teach designated personnel how to use authorised equipment. | | Drill | Rehearse evacuation and head count. | | Tabletop exercise | Discuss a scenario and agency decisions without moving real casualties. | | Full-scale exercise | Test coordinated arrangements with realistic but controlled simulation. | ## Assembly point and communication plan An **assembly point** is a pre-identified safe gathering location outside the hazard area, with enough space, accessibility and no obstruction to emergency access. Accountability confirms who is present and who may need help. A **communication plan** states who reports what, to whom, by which primary and backup channels, and how updates and all-clear messages are verified. ## Ten considerations for an institutional fire drill 1. Set objectives and a realistic safe scenario. 2. Assign a coordinator, wardens, observers and accountability roles. 3. Inspect unobstructed exits, stairs and emergency access. 4. Choose safe accessible assembly points and alternates. 5. Plan individual support for mobility, sensory or other access needs. 6. Check alarms and both primary and backup communication. 7. Coordinate with relevant services; do not cause accidental real dispatch or panic. 8. Explain that participants do not use lifts or re-enter without authorisation. 9. Observe timings, communication, head counts and unsafe bottlenecks. 10. Debrief, assign corrective actions and repeat the drill after changes. ### Practice question. Explain the need and objectives of training and drills. [5 practice marks] #### Answer 1. They turn written plans into practised action and reduce confusion. 2. They teach recognition of alarms, safe routes, assigned roles and accountability. 3. They test communication and inter-agency coordination. 4. They reveal barriers such as blocked exits or inaccessible shelters. 5. Debriefing and corrective action improve the next response rather than merely recording participation. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. **Yaad rakho:** Plan → practise → observe → correct → repeat. --- ## TEE · Awareness programmes, communication plans and emergency kits Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/training--awareness-kit/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/training/awareness-kit TEE · syllabus unit 4 **Definition.** Awareness programmes explain risks and protective actions so people can make informed decisions. They should be locally relevant, accessible and repeated rather than a one-time slogan. **Simple meaning.** Awareness ka goal “sun liya” nahi; “samjha aur action le sakta hoon” hai. 1. Identify the audience and local hazards, including workers, schools, tourists and at-risk groups. 2. Define the action people should learn, such as recognising an alert or using an evacuation route. 3. Use clear local language, pictorial or audio formats and trusted community channels. 4. Demonstrate actions and connect awareness with drills. 5. Evaluate understanding and whether people have the resources to act; revise the programme. ## Eight useful kit components | Component | Purpose | | --- | --- | | Safe drinking water | Support essential hydration when supply is disrupted. | | Non-perishable food and opener if needed | Maintain basic nutrition. | | Required medicines and a first-aid kit | Maintain prescribed treatment and basic first-aid readiness. | | Torch and batteries | Lighting during outages without an open flame. | | Battery / wind-up radio | Receive warnings when other networks fail. | | Phone charging arrangements and contact list | Support family and authority communication. | | Documents and essential cash protected from water | Help identification and access to services. | | Hygiene, sanitation and clothing suited to household needs | Support dignity, warmth and personal care. | Adapt the kit for children, older adults, disability needs, pets and local hazards. A list alone is not preparedness: supplies must be accessible, maintained and known to the household. ### Practice question. Explain how awareness programmes improve disaster preparedness. [3 practice marks] #### Answer They help people recognise local hazards, understand official warnings and learn protective actions. Accessible communication reaches different groups, demonstrations and drills convert knowledge into action, and feedback identifies practical barriers such as missing transport or unsafe routes. This reduces confusion and supports coordinated response. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. **Yaad rakho:** Know the risk, know the route, know the contacts. --- ## TEE · GIS and remote sensing from the first definition Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/training--gis/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/training/gis TEE · syllabus unit 4 **Definition.** Remote sensing obtains information about the Earth from a distance, often using satellites or aircraft. A Geographic Information System (GIS) stores, analyses and displays information linked to location. **Simple meaning.** Satellite dekhne mein help karta hai; GIS layers jodkar decision banane mein. A satellite image can show where floodwater is present. GIS can combine that image with village locations, population, roads, hospitals and shelters to estimate who may be affected and which routes remain useful. Remote sensing supplies observations; GIS combines and analyses location-based layers. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Overlay means combining layers at matching locations, not simply placing unrelated pictures next to one another. | Term | Plain meaning | DM use | | --- | --- | --- | | Raster | A grid of cells, each holding a value. | Satellite image, rainfall grid or elevation model. | | Vector data | Points, lines and polygons. | Hospital points, road lines, village boundary polygons. | | DEM | Digital Elevation Model: a grid representing ground elevation. | Identify low terrain and model water flow. | | Overlay | Combine spatial layers. | Find settlements inside an inundation zone. | | Ground verification | Check map interpretation using reliable observations. | Confirm a reported blocked road or damaged bridge. | ## Uses through the cycle | Phase | Example | | --- | --- | | Mitigation | Hazard zonation and safer location of infrastructure. | | Preparedness | Map shelters, route alternatives, exposed households and resources. | | Response | Update affected extent and access constraints for rescue planning. | | Recovery | Map damage, track reconstruction and compare services restored across communities. | ## Limitations that belong in a long answer Optical images may be obscured by cloud; radar can help but still needs interpretation. Resolution, revisit time, out-of-date maps and incomplete vulnerability data limit accuracy. A map of water extent alone does not measure every building’s damage. Protect personal data and verify important decisions with field information. ### Practice question. Distinguish remote sensing from GIS and state their disaster-management use. [3 practice marks] #### Answer **Remote sensing** observes Earth features using distant sensors, such as a satellite detecting floodwater. **GIS** combines and analyses geographically referenced layers. Overlaying the flood extent with settlements, roads and shelters supports risk assessment, evacuation planning and relief allocation. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) **Yaad rakho:** Observe → locate → combine → decide → verify. --- ## TEE · GIS applications: drought, tsunami, drills and recovery Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/training--gis-applications/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/training/gis-applications TEE · syllabus unit 4 **Definition.** A useful GIS answer connects a specific spatial dataset to a specific decision. Merely writing “GIS makes maps” is insufficient. **Simple meaning.** Layer ka naam likhke rukna mat; usse kaunsa decision better hoga woh bhi likho. | Application | Layers / inputs | Decision supported | | --- | --- | --- | | Drought mapping | Rainfall anomalies, vegetation condition, soil moisture, reservoirs, groundwater and crop distribution | Locate stressed farming areas and target monitoring and relief. | | Tsunami preparedness | Coastal elevation, inundation scenarios, settlements, roads and shelters | Choose evacuation routes and accessible safe destinations. | | Drill planning | Building / street network, exposed population, assembly points and transport constraints | Allocate routes, identify bottlenecks and plan assistance. | | Response | Observed hazard extent, blocked roads and available teams | Prioritise search and logistics with field verification. | | Recovery | Damage surveys, lifelines, temporary housing and completed works | Track restoration, identify underserved areas and guide safer rebuilding. | ## Worked planning example: a coastal evacuation drill 1. Map the plausible inundation zone; state the scenario and uncertainty. 2. Overlay settlements, schools and people needing assistance. 3. Mark shelters outside the scenario hazard and estimate available capacity. 4. Identify routes and alternatives, checking bridges, bottlenecks and accessibility in the field. 5. Rehearse the movement and communication plan; collect timings and failures. 6. Update maps, shelter allocation and the next drill from the observations. ### Practice question. Explain GIS use during disaster recovery. [5 practice marks] #### Answer 1. Map damage to housing and infrastructure and link it with verified field surveys. 2. Identify which communities lack water, roads, power or shelter so assistance can be prioritised. 3. Track repair and reconstruction progress geographically and identify gaps in coverage. 4. Compare rebuilding sites with hazard maps to avoid recreating exposure. 5. Share updated information across agencies while protecting personal data and recording uncertainty. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) **Yaad rakho:** Data layer → decision → benefit → limitation. --- ## TEE · Incident reporting, METHANE and the emergency expert Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/training--reporting/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/training/reporting TEE · syllabus unit 4 **Definition.** Structured incident reporting gives responders a common picture of an emergency. METHANE is a widely used multi-agency reporting mnemonic that appears in the supplied archive’s TEE questions. **Simple meaning.** Panic report mein random details aate hain; structure zaroori details miss hone se bachata hai. | Letter | Information to report | | --- | --- | | M | Major incident: declared or not; do not invent a declaration. | | E | Exact location: identifiable site and geographic details. | | T | Type of incident. | | H | Hazards present or developing. | | A | Access: safe entry and exit routes, including blockages. | | N | Number and condition of casualties; label estimates and unknowns. | | E | Emergency services present and required. | The acronym is not a chemistry question about methane gas. Send a short verified initial report, distinguish observations from estimates, and update as information changes. Exact procedures follow the relevant response organisation; this mnemonic is included as an archival examination application. ## Example report: hypothetical flood incident Major incident status: awaiting confirmation. Location: east-bank bridge approach, Ward 4. Type: river inundation. Hazards: fast water and damaged power line. Access: west approach closed; north road currently confirmed usable. Casualties: three people reported stranded; injury status unknown. Services: local police on scene; authorised rescue and utility support requested. This is an illustration, not a report of a real event. ## Emergency management expert: role by phase 1. Assess hazards and vulnerability and translate findings into plans. 2. Define responsibilities and coordinate agencies, communities and resources. 3. Train personnel, organise safe drills and improve weak procedures. 4. During response, support verified information, priorities and resource allocation. 5. During recovery, assess needs, restore systems, plan resilient reconstruction and review lessons. ### Practice question. Explain the significance of METHANE for incident reporting. [5 practice marks] #### Answer METHANE structures reports around major-incident status, exact location, incident type, hazards, access, casualty information and emergency services. This gives agencies a consistent initial picture, reduces missing information, supports safe deployment and enables updates as conditions change. Unconfirmed information must be labelled rather than presented as fact. #### Illustrative application · A flood incident report A responder reports the incident location, flood type, live electrical hazards, safe access, approximate casualties and services required. Those facts help the receiving service deploy suitable resources; saying only “there is a flood” does not. **Yaad rakho:** Status, location, type, danger, access, people, services. --- ## TEE · Cordon zones: a clear coastal example Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--cordons/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/cordons TEE · repeated older-paper themes explained in full A **cordon** is a controlled boundary used to keep people away from danger and organise safe access. Its location depends on the actual hazard, changing conditions, terrain and operations; it is not a fixed-radius circle for every event. Swipe across the diagram to read its labels ↔ ![A safe cordon follows the hazard, not a fixed circle](https://deep-learning-study-room.vercel.app/dm/fig/cordon.14f06142d3.svg) Diagram: A safe cordon follows the hazard, not a fixed circle. Labels: A safe cordon follows the hazard, not a fixed circle | A safe cordon follows the hazard, not a fixed circle | Sea / water | Restricted | hazard area | Authorised | teams only | Controlled access | Check entry; maintain rescue routes. | Safe reception / assembly | Outside assessed danger; accessible shelter, | headcounts and coordination. | Evacuate to safe ground → | Command levels (gold/silver/bronze) describe roles, not universal cordon distances. For a tsunami or coastal flood, the hazard boundary follows inundation risk. Safe reception and command are inland or on safe high ground. 1. **Inner restricted area.** The inundated or otherwise dangerous area is restricted to authorised, appropriately equipped teams. Control entry and exit and keep untrained people away from moving water, debris, unstable buildings and electrical hazards. 2. **Controlled support area.** Place access control, team briefing, equipment and appropriate casualty transfer at a safe boundary. Maintain rescue routes and prevent crowds from obstructing operations. Move this area if conditions change. 3. **Safe outer area.** Locate assembly, public information, relief reception and coordination outside the hazard. Keep access available for emergency vehicles and account for evacuees. 4. **Command and review.** Bronze, silver and gold commonly describe operational, tactical and strategic command responsibilities. The lecture illustrates them as zones; they do not define universal physical distances. Review boundaries after updated forecasts, damage reports or an official all-clear. **Tsunami application:** close access to beaches and low-lying inundation routes, move people inland/uphill to designated safe areas, permit only controlled rescue access and keep the exclusion in place while further waves remain possible. A tsunami can arrive as several waves; the first is not necessarily the largest. --- ## TEE · METHANE: a complete example report Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--reporting/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/reporting TEE · repeated older-paper themes explained in full **Definition.** Structured incident reporting gives responders a common picture of an emergency. METHANE is a widely used multi-agency reporting mnemonic that appears in the supplied archive’s TEE questions. | Letter | Information to report | | --- | --- | | M | Major incident: declared or not; do not invent a declaration. | | E | Exact location: identifiable site and geographic details. | | T | Type of incident. | | H | Hazards present or developing. | | A | Access: safe entry and exit routes, including blockages. | | N | Number and condition of casualties; label estimates and unknowns. | | E | Emergency services present and required. | The acronym is not a chemistry question about methane gas. Send a short verified initial report, distinguish observations from estimates, and update as information changes. Exact procedures follow the relevant response organisation; this mnemonic is included as an archival examination application. ## Example report: hypothetical flood incident Major incident status: awaiting confirmation. Location: east-bank bridge approach, Ward 4. Type: river inundation. Hazards: fast water and damaged power line. Access: west approach closed; north road currently confirmed usable. Casualties: three people reported stranded; injury status unknown. Services: local police on scene; authorised rescue and utility support requested. This is an illustration, not a report of a real event. ## Emergency management expert: role by phase 1. Assess hazards and vulnerability and translate findings into plans. 2. Define responsibilities and coordinate agencies, communities and resources. 3. Train personnel, organise safe drills and improve weak procedures. 4. During response, support verified information, priorities and resource allocation. 5. During recovery, assess needs, restore systems, plan resilient reconstruction and review lessons. ## Worked incident report: illustrative details | Field | Example report | | --- | --- | | M | Major incident declared by the authorised incident commander. | | E | Example: Riverside School, east gate, mapped grid reference shared with control. | | T | Flooding with people stranded. | | H | Fast water, submerged electrical equipment and unstable walls. | | A | Use the northern approach; southern bridge reported closed. Confirm route status. | | N | Twenty people reported stranded; injuries not yet confirmed. | | E | Police and fire teams on scene; request water rescue and medical support. | Update time-stamped information as it is verified. METHANE is an acronym for structured reporting here, not the chemical methane gas. --- ## TEE · Writing a complete training plan Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--training-plans/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/training-plans TEE · repeated older-paper themes explained in full A fire training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain smoke/fire alarm and the source of authorised updates. 4. **State protective actions.** Teach marked stairs and exits; never lifts. 5. **Assign responsibilities.** Identify fire wardens and fire services and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. --- ## TEE · Recovery: ten explained considerations Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--recovery/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/recovery TEE · repeated older-paper themes explained in full Recovery after a tsunami restores services and livelihoods while reducing future risk. The sequence overlaps; urgent shelter and essential services may begin during response. 1. **Verify damage and needs.** Survey affected households, infrastructure, services and livelihoods with community participation. 2. **Maintain safe temporary shelter.** Provide accessible accommodation, privacy, water and sanitation while longer-term housing is arranged. 3. **Restore essential lifelines.** Prioritise water, power, communication and emergency access with responsible agencies. 4. **Support health and wellbeing.** Maintain health services, rehabilitation and psychosocial support; monitor actual risks rather than assuming every disaster causes an epidemic. 5. **Manage debris and contamination.** Separate hazardous material and dispose of debris safely through trained services. 6. **Restore education and social services.** Reopen schools and support children, older people and persons with disabilities. 7. **Support livelihoods.** Restore productive assets, market access and fair assistance for affected workers and households. 8. **Reconstruct safely.** Use hazard assessment, appropriate building standards and safer sites where necessary. 9. **Coordinate and account for assistance.** Use transparent eligibility, information sharing and complaint mechanisms to prevent exclusion and duplication. 10. **Review and prepare for recurrence.** Record lessons, maintain restored systems and improve plans, training, warnings and risk reduction. --- ## TEE · Roles of four engineering specialisations Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--engineers/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/engineers TEE · repeated older-paper themes explained in full Engineers reduce risk through safe design, reliable infrastructure, technical assessment and coordinated restoration. They work within their competence and alongside emergency authorities. | Specialisation | Before | Response and recovery example | | --- | --- | --- | | Civil/structural | Assess sites, use seismic/flood-resistant design and inspect structures. | Assess damaged bridges/buildings and guide safe repair or reconstruction. | | Mechanical | Maintain pumps, machinery, pressure systems and safety interlocks. | Restore pumping and essential plant safely; investigate failures. | | Electrical | Protect supply systems and provide appropriate redundancy and backup. | Isolate dangerous systems through trained staff and restore essential power. | | Computer/IT/communication | Protect data and communication, maintain backups and mapping systems. | Restore networks, support verified incident information and protect sensitive records. | For example, after a flood, civil engineers assess road access, electrical teams make damaged installations safe, mechanical teams restore pumps and IT teams support reliable information sharing. Coordination avoids restoring one system in a way that endangers another. --- ## TEE · Five technologies and their practical limits Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--technology/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/technology TEE · repeated older-paper themes explained in full 1. **GIS.** Overlay hazard, exposure and resource maps to support evacuation and allocation decisions. 2. **Remote sensing.** Use satellite observations to map flood extent, land-cover change or drought indicators; field verification remains necessary. 3. **Sensors and telemetry.** Rain gauges, river gauges, seismic stations and ocean instruments transmit observations for monitoring and warning. 4. **Drones.** Where authorised and safe, inspect inaccessible areas and support damage or search reconnaissance. Weather, flight restrictions, privacy and limited endurance matter. 5. **Models and decision support.** Forecast and scenario models, including appropriately validated AI tools, can support prioritisation. Explain uncertainty, check data and keep responsible human judgement. Technology is useful only when it supports a decision and reaches the people who must act. A dashboard alone does not provide evacuation transport or a safe shelter. --- ## TEE · Mitigation, preparedness and response: different tasks Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--comparison/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/comparison TEE · repeated older-paper themes explained in full | Hazard | Mitigation reduces likely losses | Preparedness builds readiness | | --- | --- | --- | | Flood | Protect floodplains/storage, maintain drainage and apply suitable resilient construction. | Map routes/shelters, link forecasts to alerts, ready teams and practise evacuation. | | Drought | Improve water efficiency, appropriate cropping, recharge and sustainable allocation. | Monitor deficits, set water priorities, prepare supply contingencies and livelihood support. | Some measures contribute to both. A warning system is primarily preparedness, while land-use control primarily reduces exposure. Explain the function rather than relying only on a memorised category. ## Explain the difference through two situations **Flood:** keeping a hospital outside a mapped floodway reduces its exposure even if no warning is received; this is mitigation. Preparing an accessible route, shelter and transport plan enables people to act on a warning; this is preparedness. Both are needed because a flood barrier may be overtopped and an unpractised evacuation plan may fail. **Drought:** efficient irrigation and suitable crops reduce long-term water demand and vulnerability, making them mitigation measures. Monitoring reservoir storage and agreeing when to activate priority drinking-water supply prepare authorities to act, making them preparedness. Emergency delivery of water after severe shortage is response. Mitigation asks “How can likely damage be reduced?”; preparedness asks “How will we act effectively when the threat develops?” --- ## TEE · NGOs and community support Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/applications--ngos/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/applications/ngos TEE · repeated older-paper themes explained in full NGOs can complement public authorities through local knowledge, relief, inclusion, training and recovery. They should coordinate needs assessment, avoid duplication and remain accountable to affected people. 1. **SEEDS.** Works on disaster response, resilience, community skills and safer built environments. 2. **Goonj.** Connects material relief and community-led work with dignity and recovery needs. 3. **ActionAid Association.** Supports inclusive emergency preparedness, response and recovery, with attention to marginalised communities. 4. **CARE.** Provides humanitarian support across emergencies, including essential needs and recovery activities through its programmes and partners. An NGO is not the incident-command authority merely because it provides relief. Clear roles and coordination with designated authorities are necessary. --- ## TEE · Gujarat earthquake, 2001 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--bhuj/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/bhuj TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** On 26 January 2001 a major earthquake struck the Kutch region of Gujarat. 2. **Causes and vulnerability:** Fault rupture caused strong shaking; vulnerable buildings and lifelines amplified losses. 3. **Impacts:** Building collapse, deaths and injuries, disrupted services and large housing and livelihood needs. 4. **Response and recovery:** Search and rescue, medical help and temporary shelter; longer-term reconstruction and institutional strengthening. 5. **Lessons:** Use seismic design and retrofitting, improve construction quality, protect lifelines, train communities, support owner/community participation and rebuild with risk reduction. ### Practice question. Explain the Gujarat earthquake, 2001 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** On 26 January 2001 a major earthquake struck the Kutch region of Gujarat. 2. **Causes and vulnerability:** Fault rupture caused strong shaking; vulnerable buildings and lifelines amplified losses. 3. **Impacts:** Building collapse, deaths and injuries, disrupted services and large housing and livelihood needs. 4. **Response and recovery:** Search and rescue, medical help and temporary shelter; longer-term reconstruction and institutional strengthening. 5. **Lessons:** Use seismic design and retrofitting, improve construction quality, protect lifelines, train communities, support owner/community participation and rebuild with risk reduction. #### Real programme · Gujarat earthquake recovery GSDMA’s reconstruction and mason-training programmes connect recovery with safer rebuilding. The principle is to improve construction capacity and resilience while restoring what was damaged, rather than simply reproduce the previous vulnerability. [Case reference ↗](https://www.gsdma.org/Content/masons-training-certification-programme-4223) **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Bhopal gas tragedy, 1984 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--bhopal/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/bhopal TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** A major toxic gas release occurred at the Union Carbide pesticide plant in Bhopal during the night of 2–3 December 1984. 2. **Causes and vulnerability:** Release of methyl isocyanate and failures of industrial safety and preparedness exposed nearby communities. 3. **Impacts:** Severe acute harm, long-term health and social consequences, and difficult compensation and environmental questions. 4. **Response and recovery:** Emergency medical response and long-term care and relief; the event exposed weaknesses in chemical risk communication and regulation. 5. **Lessons:** Maintain safety systems; assess off-site risk; coordinate industry, hospitals and authorities; disclose hazard information; practise response; provide accountable long-term recovery. ### Practice question. Explain the Bhopal gas tragedy, 1984 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** A major toxic gas release occurred at the Union Carbide pesticide plant in Bhopal during the night of 2–3 December 1984. 2. **Causes and vulnerability:** Release of methyl isocyanate and failures of industrial safety and preparedness exposed nearby communities. 3. **Impacts:** Severe acute harm, long-term health and social consequences, and difficult compensation and environmental questions. 4. **Response and recovery:** Emergency medical response and long-term care and relief; the event exposed weaknesses in chemical risk communication and regulation. 5. **Lessons:** Maintain safety systems; assess off-site risk; coordinate industry, hospitals and authorities; disclose hazard information; practise response; provide accountable long-term recovery. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Indian Ocean tsunami, 2004 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--tsunami2004/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/tsunami2004 TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. 2. **Causes and vulnerability:** Seafloor displacement generated waves; exposed coastal settlements and limited warning readiness increased losses. 3. **Impacts:** Coastal inundation, housing and livelihood destruction and disruption across several countries, including India. 4. **Response and recovery:** Rescue, shelter and livelihood rehabilitation; India subsequently strengthened tsunami monitoring and warning through INCOIS/ITEWC. 5. **Lessons:** Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. ### Practice question. Explain the Indian Ocean tsunami, 2004 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. 2. **Causes and vulnerability:** Seafloor displacement generated waves; exposed coastal settlements and limited warning readiness increased losses. 3. **Impacts:** Coastal inundation, housing and livelihood destruction and disruption across several countries, including India. 4. **Response and recovery:** Rescue, shelter and livelihood rehabilitation; India subsequently strengthened tsunami monitoring and warning through INCOIS/ITEWC. 5. **Lessons:** Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Mumbai floods, 2005 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--mumbai/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/mumbai TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** Extreme rainfall on 26 July 2005 caused severe flooding in Mumbai and surrounding areas. 2. **Causes and vulnerability:** Intense rainfall interacted with inadequate or obstructed drainage, loss of natural storage, low-lying development and tide-related drainage constraints. 3. **Impacts:** Transport paralysis, deaths and injuries, housing damage, disrupted livelihoods and public-health risks. 4. **Response and recovery:** Rescue and shelter, restoration of services and attention to drainage, warning and urban-planning weaknesses. 5. **Lessons:** Maintain drains; protect wetlands and natural flow paths; plan outfalls and detention; issue local warnings; regulate exposed development. ### Practice question. Explain the Mumbai floods, 2005 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** Extreme rainfall on 26 July 2005 caused severe flooding in Mumbai and surrounding areas. 2. **Causes and vulnerability:** Intense rainfall interacted with inadequate or obstructed drainage, loss of natural storage, low-lying development and tide-related drainage constraints. 3. **Impacts:** Transport paralysis, deaths and injuries, housing damage, disrupted livelihoods and public-health risks. 4. **Response and recovery:** Rescue and shelter, restoration of services and attention to drainage, warning and urban-planning weaknesses. 5. **Lessons:** Maintain drains; protect wetlands and natural flow paths; plan outfalls and detention; issue local warnings; regulate exposed development. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Panshet dam failure and Pune floods, 1961 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--panshet/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/panshet TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** Failure of Panshet Dam on 12 July 1961 released floodwater into the Pune river system and contributed to severe flooding. 2. **Causes and vulnerability:** A dam-failure release created rapid downstream inundation; downstream settlements and infrastructure were exposed. 3. **Impacts:** Severe damage to housing, property and services and large-scale displacement in Pune. 4. **Response and recovery:** Emergency evacuation and relief were followed by rebuilding and review of dam and flood safety. 5. **Lessons:** Combine sound design and construction quality with dam surveillance, safe operation, breach-inundation mapping, downstream warnings and rehearsed emergency action plans. ### Practice question. Explain the Panshet dam failure and Pune floods, 1961 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** Failure of Panshet Dam on 12 July 1961 released floodwater into the Pune river system and contributed to severe flooding. 2. **Causes and vulnerability:** A dam-failure release created rapid downstream inundation; downstream settlements and infrastructure were exposed. 3. **Impacts:** Severe damage to housing, property and services and large-scale displacement in Pune. 4. **Response and recovery:** Emergency evacuation and relief were followed by rebuilding and review of dam and flood safety. 5. **Lessons:** Combine sound design and construction quality with dam surveillance, safe operation, breach-inundation mapping, downstream warnings and rehearsed emergency action plans. #### Real case and learning connection · Panshet and Pune, 1961 The Panshet dam failure is a real example of a structural failure creating downstream flood consequences. In an answer, connect dam design, construction, inspection and warning arrangements to downstream exposure rather than treating every flood as rainfall alone. [Case reference ↗](https://archive.nptel.ac.in/content/storage2/courses/105106114/pdfs/Unit41/41_2.pdf) **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Uttarakhand disaster, 2013 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--uttarakhand/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/uttarakhand TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** Extreme rainfall in June 2013 caused floods, debris flows and landslides across Uttarakhand, including the Kedarnath area. 2. **Causes and vulnerability:** Heavy rainfall interacted with steep fragile terrain, river and debris processes, exposed pilgrimage routes and vulnerable development. 3. **Impacts:** People were stranded or killed; roads, bridges and settlements were damaged, restricting access and relief. 4. **Response and recovery:** Multi-agency evacuation and rescue, relief camps and restoration of access and essential services. 5. **Lessons:** Use basin and slope risk assessment, control unsafe construction, manage visitor exposure, improve warnings and routes and protect critical connections. River interlinking is not a proven simple solution to short-lead mountain flash floods. ### Practice question. Explain the Uttarakhand disaster, 2013 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** Extreme rainfall in June 2013 caused floods, debris flows and landslides across Uttarakhand, including the Kedarnath area. 2. **Causes and vulnerability:** Heavy rainfall interacted with steep fragile terrain, river and debris processes, exposed pilgrimage routes and vulnerable development. 3. **Impacts:** People were stranded or killed; roads, bridges and settlements were damaged, restricting access and relief. 4. **Response and recovery:** Multi-agency evacuation and rescue, relief camps and restoration of access and essential services. 5. **Lessons:** Use basin and slope risk assessment, control unsafe construction, manage visitor exposure, improve warnings and routes and protect critical connections. River interlinking is not a proven simple solution to short-lead mountain flash floods. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Kerala floods, 2018 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--kerala/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/kerala TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** Heavy monsoon rainfall in August 2018 caused widespread flooding and landslides in Kerala. 2. **Causes and vulnerability:** Very high rainfall, saturated catchments, affected river systems and exposed development combined; reservoir management formed part of the broader management challenge. 3. **Impacts:** Damage to housing, roads, crops and services, large-scale evacuation and major recovery needs. 4. **Response and recovery:** Government services, armed forces, volunteers and local fishers supported rescue and relief; rebuilding required coordinated needs assessment. 5. **Lessons:** Use integrated basin planning, forecast-informed reservoir coordination, wetland and drainage protection, accessible warnings and resilient reconstruction. Avoid assigning the entire disaster to one cause. ### Practice question. Explain the Kerala floods, 2018 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** Heavy monsoon rainfall in August 2018 caused widespread flooding and landslides in Kerala. 2. **Causes and vulnerability:** Very high rainfall, saturated catchments, affected river systems and exposed development combined; reservoir management formed part of the broader management challenge. 3. **Impacts:** Damage to housing, roads, crops and services, large-scale evacuation and major recovery needs. 4. **Response and recovery:** Government services, armed forces, volunteers and local fishers supported rescue and relief; rebuilding required coordinated needs assessment. 5. **Lessons:** Use integrated basin planning, forecast-informed reservoir coordination, wetland and drainage protection, accessible warnings and resilient reconstruction. Avoid assigning the entire disaster to one cause. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Cyclone Nisarga, 2020 Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--nisarga/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/nisarga TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** Cyclone Nisarga made landfall near the Maharashtra coast on 3 June 2020. 2. **Causes and vulnerability:** A tropical cyclone brought strong winds and rain to exposed coastal settlements and infrastructure. 3. **Impacts:** Damage to roofs, trees, power networks and livelihoods; rain and access problems complicated response. 4. **Response and recovery:** Official forecasting and warnings supported protective preparations and evacuation; agencies then assessed damage and restored essential services. 5. **Lessons:** Translate forecasts into local action using mass communication plus last-mile outreach; prepare shelters, protect lifelines and support recovery. Distinguish what authorities should do from a claim that each particular action is documented. ### Practice question. Explain the Cyclone Nisarga, 2020 case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** Cyclone Nisarga made landfall near the Maharashtra coast on 3 June 2020. 2. **Causes and vulnerability:** A tropical cyclone brought strong winds and rain to exposed coastal settlements and infrastructure. 3. **Impacts:** Damage to roofs, trees, power networks and livelihoods; rain and access problems complicated response. 4. **Response and recovery:** Official forecasting and warnings supported protective preparations and evacuation; agencies then assessed damage and restored essential services. 5. **Lessons:** Translate forecasts into local action using mass communication plus last-mile outreach; prepare shelters, protect lifelines and support recovery. Distinguish what authorities should do from a claim that each particular action is documented. #### Real case and learning connection · Cyclone Nisarga, 2020 Nisarga provides a Maharashtra coastal-cyclone example. The lesson is to consider wind, rain and coastal exposure together, and connect forecasts to protective action. Its year is 2020; do not reproduce the incorrect 2021 date found in some question wording. **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Odisha cyclone lessons: 1999 and later preparedness Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--odisha/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/odisha TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** The 1999 Odisha super cyclone caused catastrophic coastal impacts. Later cyclone management emphasised stronger warning, shelters, evacuation and community preparedness. 2. **Causes and vulnerability:** Extreme wind, rainfall and storm surge interacted with coastal exposure and vulnerable housing. 3. **Impacts:** Large human, housing, agricultural and livelihood losses showed the cost of limited protective capacity. 4. **Response and recovery:** Investment in institutions, shelters, warning dissemination, roads and trained community networks strengthened later response arrangements. 5. **Lessons:** A forecast saves lives when people receive it, trust it and can reach safe shelter; construction, ecosystem protection and recovery remain necessary. ### Practice question. Explain the Odisha cyclone lessons: 1999 and later preparedness case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** The 1999 Odisha super cyclone caused catastrophic coastal impacts. Later cyclone management emphasised stronger warning, shelters, evacuation and community preparedness. 2. **Causes and vulnerability:** Extreme wind, rainfall and storm surge interacted with coastal exposure and vulnerable housing. 3. **Impacts:** Large human, housing, agricultural and livelihood losses showed the cost of limited protective capacity. 4. **Response and recovery:** Investment in institutions, shelters, warning dissemination, roads and trained community networks strengthened later response arrangements. 5. **Lessons:** A forecast saves lives when people receive it, trust it and can reach safe shelter; construction, ecosystem protection and recovery remain necessary. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · Drought in Maharashtra: applying the framework Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/read/cases--drought-case/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/read/cases/drought-case TEE · unit 5; linked applications for M2 ## Read the case as a cause-and-response chain 1. **Event and setting:** Recurring drought in parts of Maharashtra illustrates a slow-developing water and livelihood crisis. 2. **Causes and vulnerability:** Rainfall deficits interact with irrigation demand, groundwater pressure, storage and dependence on rain-fed livelihoods. 3. **Impacts:** Drinking-water stress, crop and fodder losses, livelihood insecurity and migration pressures. 4. **Response and recovery:** Monitor shortages and prioritise basic water needs while supporting livelihoods; plan conservation and appropriate cropping beyond emergency supplies. 5. **Lessons:** Emergency tankers address immediate need; sustainable water budgeting, watershed work and demand management address longer-term vulnerability. ### Practice question. Explain the Drought in Maharashtra: applying the framework case study and its disaster-management lessons. [5 practice marks] #### Answer 1. **Event and setting:** Recurring drought in parts of Maharashtra illustrates a slow-developing water and livelihood crisis. 2. **Causes and vulnerability:** Rainfall deficits interact with irrigation demand, groundwater pressure, storage and dependence on rain-fed livelihoods. 3. **Impacts:** Drinking-water stress, crop and fodder losses, livelihood insecurity and migration pressures. 4. **Response and recovery:** Monitor shortages and prioritise basic water needs while supporting livelihoods; plan conservation and appropriate cropping beyond emergency supplies. 5. **Lessons:** Emergency tankers address immediate need; sustainable water budgeting, watershed work and demand management address longer-term vulnerability. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. **Yaad rakho:** Event → cause and vulnerability → impacts → response → lessons. --- ## TEE · The essential terms in one place Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/formulas/facts--definitions/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/formulas/facts/definitions Definitions and taught relationships · optional sums separately | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | | Term | Meaning | | --- | --- | | Exposure | People and assets located where a hazard may occur. | | Capacity | Skills, resources and arrangements available to manage risk. | | Resilience | Ability to withstand, adapt and recover while maintaining/restoring essential functions. | | Preparedness | Readiness to act effectively; includes plans, training, warnings and resources. | | Response | Immediate and short-term actions to protect people and address urgent needs. | | Recovery | Restoring services, housing and livelihoods and reducing future risk. | | GIS | A system for working with geographically referenced information. | | Remote sensing | Obtaining information from a distance, for example using satellite sensors. | **Yaad rakho:** Hazard = threat; exposure = who is there; vulnerability = why harm is likely; capacity = what helps. --- ## TEE · Lecture formulas and optional calculation reference Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/formulas/facts--formula-sheet/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/formulas/facts/formula-sheet Definitions and taught relationships · optional sums separately These are formulas discussed or explained alongside the lectures, not a list of confirmed numerical questions. The approximate energy relation is a USGS extension. The available 12 TEE papers contain no numerical substitution questions. ## Magnitude difference $$ \frac{A_2}{A_1}=10^{M_2-M_1} $$ Compares seismic-wave amplitudes on a comparable logarithmic scale; it is not the energy ratio. [Open the optional solved examples →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--magnitude/) ## Approximate energy ratio $$ \frac{E_2}{E_1}\approx10^{1.5(M_2-M_1)} $$ Uses the common approximate magnitude–energy relation. [Open the optional solved examples →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--magnitude/) ## Seismic moment $$ M_0=\mu A D $$ Rigidity × rupture area × average slip. Use compatible SI units to obtain N·m. [Open the optional solved examples →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--moment/) ## Moment magnitude, SI $$ M_w=\frac{2}{3}(\log_{10}M_0-9.1) $$ Here the numerical value of M₀ is in N·m. Do not substitute dyne·cm into this version. [Open the optional solved examples →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--moment/) ## Rational runoff method $$ Q=0.27778CIA $$ Q in m³/s, rainfall intensity I in mm/h, catchment area A in km², dimensionless C. It estimates peak runoff under the method’s assumptions. [Open the optional solved examples →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--runoff/) ## Channel discharge $$ Q=A_c v $$ Flow cross-section A\_c in m² × mean velocity v in m/s gives Q in m³/s. A\_c is not the catchment area above. [Open the optional solved examples →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--channel-flow/) ## Conversions used in the calculations $$ 1\,\mathrm{km}=1000\,\mathrm m,\qquad1\,\mathrm{km^2}=10^6\,\mathrm{m^2} $$ $$ 1\,\mathrm{ha}=10^4\,\mathrm{m^2},\qquad1\,\mathrm h=3600\,\mathrm s $$ $$ 1\,\mathrm{N\,m}=10^7\,\mathrm{dyne\,cm} $$ **Yaad rakho:** Pehle units match; phir formula; phir calculation. Same A symbol ka meaning har formula mein same nahi hota. --- ## TEE · Disaster equation: components and interpretation Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/formulas/facts--risk/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/formulas/facts/risk Definitions and taught relationships · optional sums separately **Definition.** Disaster risk is the potential loss associated with a hazardous event and the exposed, vulnerable system. A classroom index can illustrate how hazard, vulnerability and capacity interact; it is not automatically a real probability. $$ R\propto\frac{H\times V}{C} $$ $$ R_{index}=\frac{H\times E\times V}{C}\quad\text{if exposure is explicitly included} $$ H is hazard, V vulnerability, E exposure and C capacity. More hazard/exposure/vulnerability generally increases potential loss; stronger capacity can reduce it. Scores must be defined and comparable; do not mix rupees, people and undefined scores and call the result a probability. A separate expected-loss model is probability × consequence when probability and consequence are clearly given. ## Explain each component with one connected flood example | Component | Meaning | Example | | --- | --- | --- | | Hazard | Potentially damaging event or process. | Intense rainfall and rising river water. | | Exposure | People and assets in the affected location. | Homes, roads and a hospital on the floodplain. | | Vulnerability | Conditions that make exposed elements susceptible to loss. | Weak housing, blocked drainage and inaccessible evacuation transport. | | Capacity | Available strengths for reducing risk and managing impacts. | Maintained drains, warnings, trained teams and accessible shelters. | ## Interpret the equation For otherwise comparable conditions, greater hazard, exposure or vulnerability increases potential loss; stronger capacity can reduce it. Heavy rain over an uninhabited area and equally heavy rain over a densely populated settlement do not have the same disaster risk. A disaster occurs when the event seriously disrupts the exposed community; the relationship does not define a universal numerical threshold. ## Significance for management 1. Identify the hazard and who or what is exposed before selecting measures. 2. Reduce vulnerability through safer construction and accessible services. 3. Reduce exposure by appropriate land-use planning. 4. Increase capacity through warning, training, shelters and coordination. 5. Review the assessment as conditions and available information change. The original 1 December 2022 Q2A asks for the equation, its components and an example. It supplies no numbers and does not ask for a calculation. The explanation above answers that theory requirement. [Optional solved calculations and their source →](https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--risk/) --- ## TEE · What the TEE papers actually ask Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--pattern/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/pattern Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated The supplied syllabus specifies a **100-mark TEE**. The reviewed papers allow **3 hours**, require **Q1**, and require **any four of Q2–Q7**. Each complete question carries 20 marks, giving 5 × 20 = 100 attempted marks. | Paper group | Q1 | Q2–Q7 | | --- | --- | --- | | Recent papers and most older papers | Four parts × 5 marks = 20 | Two parts × 10 marks in each question | | December 2022 and February 2023 | Five parts × 4 marks = 20 | Two parts × 10 marks in each question | The archive contained 59 distinct PDF files, including stream copies, scanned duplicates and answer schemes. They resolve to **12 distinct question-paper sittings**. All 12 are presented below with complete question text and model answers; scanned wording has spacing and punctuation normalised. The 2025–26 answer schemes were used to check the requested answer depth, not as unquestioned scientific authority. ## Recurring question forms | Command | What the answer must contain | | --- | --- | | Define / differentiate | Precise definitions, the requested comparison and a relevant example. | | Explain measures | Name each measure, explain what it does and why it reduces harm. | | Draw / illustrate | A labelled diagram plus an explanation of its parts. | | Apply GIS / EWS / a plan | Connect tools to a specific hazard and management phase. | | Case study | Event and setting → causes and vulnerability → impacts → response → lessons. | | Checklist | The requested number of distinct, explained considerations. | These are observed past-paper patterns, not an announced blueprint for the next examination. The recent 5 + 5 + 5 + 5 format is kept separate from the older 4-mark format and from your 10-mark M2 format. ## Calculation evidence **What the available papers show:** the 12 recovered TEE sittings (1 December 2022 to 10 July 2026), containing 194 question parts, ask for explanations, comparisons, sketches, measures, checklists and case applications. No question in that set supplies values and requires a numerical calculation. The 1 December 2022 Q2A [10 marks] asks for the disaster equation and its components with an example; it is a theory question. This describes the available papers, not a restriction on a future examiner. --- ## TEE · Syllabus match and recurring TEE themes Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--topics/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/topics Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated | Syllabus area | Themes found in the papers | How to study | | --- | --- | --- | | Unit 1 | Hazard/risk/vulnerability, classification, perspectives, impacts, climate extremes and industrial hazards | Learn the distinctions first, then practise applying them to an actual case. | | Unit 2 | Earthquake causes/waves, floods, droughts, landslides and mitigation | Learn cause → effect → measure, and practise the labelled diagrams. | | Unit 3 | Cycle, ethics, NDMA, EWS, hierarchy, cordons and response/recovery plans | Explain roles and reasons; distinguish authority, technical agency and response force. | | Unit 4 | GIS, remote sensing, media, training, drills, kits, METHANE and expert roles | Apply each tool to places, people and a management decision. | | Unit 5 | Bhopal, Gujarat, Indian Ocean tsunami, Mumbai, Panshet, Nisarga, Uttarakhand, Kerala | Use a structured case answer without invented quantities. | No whole DM question in the 12 sittings needed exclusion as unrelated to the current five units. Ambiguous labels, scientific errors and incorrect dates are corrected in the corresponding answer. Topics named in the syllabus but less visible in the papers—such as volcanoes, avalanches, subsidence, radiation, waste, oil spills and terrorism—remain in TEE reading. ## Recent-paper examples, not predictions | Theme | Paper references | What to practise | | --- | --- | --- | | Earthquake causes, waves and boundaries | 15 May 2026 Q1A [5], Q2A [10]; 10 July 2026 Q2A [10] | Explain the process and practise labelled sketches. | | Hazard, risk, vulnerability and classification | 15 May 2026 Q1C [5]; 10 July 2026 Q1A [5], Q4B [10] | Define each term and apply it to the named disaster. | | Flood, drought, landslide and cyclone measures | 15 May 2026 Q1B [5], Q3A [10], Q5A [10]; 10 July 2026 Q3A [10], Q5A [10], Q7A [10] | Name the measure, explain its mechanism, and justify it for the stated hazard. | | Cordon-off zones, cycle and disaster scale | 15 May 2026 Q2B [10], second printed Q5A [10]; 10 July 2026 Q2B [10], Q7B [10] | Draw labelled diagrams and explain the purpose of each part. | | Risk mapping, GIS and its application | 15 May 2026 Q3B [10], Q6A [10]; 10 July 2026 Q4A [10] | Connect data layers to a decision and the specified management phase. | | Training, drills, awareness and preparedness kits | 15 May 2026 Q1D [5], Q4A [10]; 10 July 2026 Q1D [5], Q6B [10] | Develop the requested checklist, roles or objectives. | | Warnings, media and incident reporting | 15 May 2026 Q6B [10]; 10 July 2026 Q1C [5], Q3B [10], Q6A [10] | Give the channel/protocol, explain its use, and apply it to the incident. | | Ethics and case-based analysis | 15 May 2026 Q4B [10], Q7B [10]; 10 July 2026 Q5B [10] | Explain the principles and justify a relevant example. | --- ## TEE · Choose a solved TEE paper Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--index/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/index Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated | Date | Paper | Open | | --- | --- | --- | | 2025-12-10 | Semester V final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1a/) | | 2026-02-12 | Semester V re-exam | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1a/) | | 2026-05-15 | Semester VI final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1a/) | | 2026-07-10 | Semester VI re-exam | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1a/) | | 2025-05-12 | Semester VI final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1a/) | | 2025-02-25 | Semester V re-exam | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1a/) | | 2024-12-10 | Semester V final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1a/) | | 2023-12-04 | Semester V final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1a/) | | 2023-07-05 | Semester VI re-exam | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1a/) | | 2023-05-04 | Semester VI final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1a/) | | 2023-02-07 | Semester V/VII re-exam | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1a/) | | 2022-12-01 | Semester V/VII final | [Read questions and answers →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1a/) | --- ## TEE · All PYQs: units, marks and latest-vs-older pattern Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--all-pyq-patterns/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/all-pyq-patterns Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated **12 distinct sittings · 194 solved question parts.** These counts consolidate duplicate stream copies. Every included question is linked below by its current syllabus unit. All are relevant to at least one current syllabus area. ## Latest four sittings versus older papers Read this as the marks **offered across several papers**, not a promised unit weightage or a recommendation to skip a unit. Latest = 2026-07-10, 2026-05-15, 2026-02-12, 2025-12-10. A combined question is counted once under its main unit; its secondary topics are still shown in the unit lists. | Primary syllabus unit | Latest four papers | Older 8 papers | | --- | --- | --- | | Unit 1 · Disaster concepts, types, risk and hazards | 12 parts · 100 confirmed marks | 28 parts · 229 confirmed marks | | Unit 2 · Earthquakes, floods, droughts and landslides | 14 parts · 125 confirmed marks | 24 parts · 220 confirmed marks | | Unit 3 · Mitigation, management, institutions and warning | 19 parts · 175 confirmed marks | 32 parts · 266 confirmed marks | | Unit 4 · Training, awareness, GIS and remote sensing | 16 parts · 135 confirmed marks | 39 parts · 335 confirmed marks | | Unit 5 · Case studies | 3 parts · 25 confirmed marks | 7 parts · 70 confirmed marks | ## Offered marks and attempted marks are different Q1 is compulsory (20 marks). Choose any four complete questions from Q2–Q7 (4 × 20 = 80). **Attempt 100 marks.** The nominal full paper offers 140 marks because two optional complete questions are left unanswered. Choosing two separate halves from different questions is not the stated rule. December 2022 and February 2023 use five compulsory 4-mark Q1 parts. The other recovered sittings use four 5-mark Q1 parts. Both produce the same 20-mark compulsory group. May 2026 repeats the printed Q5A label; the second occurrence is indexed as Q5B and explained in its answer. ## What the numerical evidence actually supports No recovered DM paper supplies data for a standalone calculation. The December 2022 equation-of-disaster question asks for meaning, components and an example. It is a theory/application question, not an instruction to insert invented values. Extra arithmetic drills stay optional. [Download the complete question/unit/topic/marks map (JSON)](https://deep-learning-study-room.vercel.app/dm/pyq-analysis.json). Printed wording is retained with the existing scan transcription’s normalised spacing/punctuation. Unit mapping is our academic interpretation of the supplied syllabus, not a faculty marks blueprint. --- ## TEE · Unit 1 · Disaster concepts, types, risk and hazards — every PYQ Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--unit-1-pyqs/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/unit-1-pyqs Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated Each row links directly to its full question and answer. The marks belong to the **whole listed part**; a question with two or more topics has no invented split between them. Cross-unit questions appear once under their primary unit here, with all unit tags visible. ## Latest four sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2026-07-10 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1a/) | 5 | Describe in detail types of Disasters on basis of legal boundaries. Also cite relevant example for each type | Disaster classification: cause, occurrence, impact and/or legal boundaries Required treatment: types / classifications Units 1 · theory application | Solved | | [2026-07-10 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q4b/) | 10 | Differentiate between Hazard, Risk, Vulnerability and Disaster citing suitable examples, considering Landslides as a Natural Disasters. | Risk / hazard / vulnerability / disaster distinctions Hazard-specific application: Landslide Hazard(s): Landslide Required treatment: comparison Units 1, 2 · theory application | Solved | | [2026-05-15 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1c/) | 5 | Draft a typical classification chain for the case study of Uttarakhand Forest Fires and explain the same in detail | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Fire Units 1, 5 · case application | Solved | | [2026-05-15 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q7a/) | 10 | Differentiate between the (any 5) dos and don’ts for disaster response for the cold wave and heat wave citing relevant examples | Extreme-temperature / industrial / fire hazard management Management measures for the stated hazard Hazard(s): Heat wave, Cold wave Required treatment: response, comparison Units 1, 3 · theory application | Solved | | [2026-02-12 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1a/) | 5 | Discuss in detail the 4 key causes of Global Climate Extremes citing relevant examples | Hazard types, impacts, perspectives or climate extremes Required treatment: causes / mechanism Units 1 · theory application | Solved | | [2026-02-12 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q3a/) | 10 | State and elaborate in detail 4 Perspectives of Disaster Management, citing suitable examples for each of the perspectives. | Hazard types, impacts, perspectives or climate extremes Units 1 · theory application | Solved | | [2026-02-12 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q4b/) | 10 | Discuss in detail 5 types of Hazards. Also cite typical Disaster caused by each of the hazard. | Hazard types, impacts, perspectives or climate extremes Required treatment: causes / mechanism, types / classifications Units 1 · theory | Solved | | [2025-12-10 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1a/) | 5 | Describe in brief the following terms/concepts in reference to Disaster Management – Risk, Vulnerability, Hazard, Preparedness and Mitigation Measures. | Risk / hazard / vulnerability / disaster distinctions Management measures for the stated hazard Required treatment: mitigation, preparedness Units 1, 3 · theory | Solved | | [2025-12-10 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q2a/) | 10 | For the Case Study “Bhopal Gas Tragedy” draft the classification chain. Also Explain detail for classification Disaster on basis of its occurrence and Legal Boundaries | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Gas release Units 1, 5 · case application | Solved | | [2025-12-10 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q4b/) | 10 | Describe in brief 5 causes and 5 preparedness measures for each - Heat Wave and Cold Wave. | Extreme-temperature / industrial / fire hazard management Management measures for the stated hazard Hazard(s): Heat wave, Cold wave Required treatment: causes / mechanism, preparedness Units 1, 3 · theory application | Solved | | [2025-12-10 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q7a/) | 10 | Explain in brief 5 key causes of Forest Fires and elaborate the any 5 immediate response measures that can be adopted for control of Forest fires and extinguishing the forest fires | Extreme-temperature / industrial / fire hazard management Management measures for the stated hazard Hazard(s): Fire Required treatment: causes / mechanism, response Units 1, 3 · theory application | Solved | | [2025-12-10 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q7b/) | 10 | You are appointed as a consultant by an industry for recommending preparedness strategies for Gas Leaks. Also elaborate any 6 strategies in brief that you shall recommend and justify the same. | Extreme-temperature / industrial / fire hazard management Management measures for the stated hazard Hazard(s): Gas release Required treatment: preparedness Units 1, 3 · theory application | Solved | ## Older sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2025-05-12 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1b/) | 5 | Elaborate in detail any 5 causes of Forest Fires. | Extreme-temperature / industrial / fire hazard management Hazard(s): Fire Required treatment: causes / mechanism Units 1 · theory application | Solved | | [2025-05-12 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1d/) | 5 | Elaborate in brief the classification chain of Indian Ocean Tsunami. | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Tsunami Units 1, 5 · case application | Solved | | [2025-05-12 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q2a/) | 10 | Elaborate in brief any 5 causes for Cold Wave and Droughts. | Extreme-temperature / industrial / fire hazard management Hazard-specific application: Drought / Cold wave Hazard(s): Drought, Cold wave Required treatment: causes / mechanism Units 1, 2 · theory application | Solved | | [2025-05-12 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q4b/) | 10 | Explain the following concepts (Risk, Hazard, Vulnerability, Disaster) related to Identification of Disaster considering any one type of risk. | Risk / hazard / vulnerability / disaster distinctions Required treatment: types / classifications Units 1 · theory | Solved | | [2025-02-25 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1a/) | 5 | Differentiate between Geological and Environmental Hazards elaborating, citing any 2 relevant examples. | Hazard types, impacts, perspectives or climate extremes Required treatment: comparison Units 1 · theory application | Solved | | [2025-02-25 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1d/) | 5 | Elaborate in detail classification of “Nisarg Cyclone - 2021” on basis of Legal Boundaries. Also elaborate types of legal boundaries. | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Cyclone, Nisarga cyclone Required treatment: types / classifications Units 1, 5 · case application | Solved | | [2025-02-25 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q2b/) | 10 | Explain in detail causes for occurrence of disaster citing relevant examples of disaster caused by each. | Hazard types, impacts, perspectives or climate extremes Required treatment: causes / mechanism Units 1 · theory application | Solved | | [2025-02-25 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q5b/) | 10 | Explain how global climate change is linked to the increasing frequency and intensity of floods and droughts, elaborating with relevant example for each. | Hazard types, impacts, perspectives or climate extremes Hazard-specific application: Flood / Drought Hazard(s): Flood, Drought Units 1, 2 · theory application | Solved | | [2025-02-25 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q7a/) | 10 | Draft the checklist of 10 precautions to be considered in responding to Heat Wave. | Extreme-temperature / industrial / fire hazard management Hazard(s): Heat wave Required treatment: explained checklist Units 1 · theory application | Solved | | [2024-12-10 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1a/) | 5 | Explain in detail Hydrological and Geological Hazards elaborating, citing any 2 relevant examples. | Hazard types, impacts, perspectives or climate extremes Units 1 · theory application | Solved | | [2024-12-10 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1d/) | 5 | Elaborate in detail classification “Uttarakhand Floods - 2005” on basis of Legal boundaries. Also elaborate types of legal boundaries. | Disaster classification: cause, occurrence, impact and/or legal boundaries Hazard-specific application: Flood Named case used as the application context Hazard(s): Flood Required treatment: types / classifications Units 1, 2, 5 · case application | Solved | | [2024-12-10 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q2b/) | 10 | Explain in detail 5 types of adverse effect of Disasters citing relevant examples of disaster caused by each. | Hazard types, impacts, perspectives or climate extremes Required treatment: causes / mechanism, types / classifications, effects / impacts Units 1 · theory application | Solved | | [2024-12-10 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q5b/) | 10 | Explain how global climate change is linked to the increasing frequency and intensity of Cyclones and Floods, elaborating with relevant example for each. | Hazard types, impacts, perspectives or climate extremes Hazard-specific application: Flood / Cyclone Hazard(s): Flood, Cyclone Units 1, 2 · theory application | Solved | | [2024-12-10 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q7a/) | 10 | Draft the checklist of 10 precautions to be considered in responding to Cold Wave. | Extreme-temperature / industrial / fire hazard management Hazard(s): Cold wave Required treatment: explained checklist Units 1 · theory application | Solved | | [2023-12-04 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1a/) | 5 | Discuss in detail the difference between Risk and Hazard citing relevant examples. | Risk / hazard / vulnerability / disaster distinctions Units 1 · theory application | Solved | | [2023-12-04 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q3a/) | 10 | Discuss in detail with neat sketch formation of Cyclone and elaborate in detail each component of Cyclone. | Cyclone — mechanism and components Hazard(s): Cyclone Required treatment: labelled sketch Units 1 · theory application | Solved | | [2023-12-04 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q5a/) | 10 | Discuss in detail Classification of Disaster on basis of Occurrence and on basis of legal boundaries citing suitable example. | Disaster classification: cause, occurrence, impact and/or legal boundaries Units 1 · theory application | Solved | | [2023-12-04 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q6a/) | 10 | Discuss in detail the significance of Mitigation in Disaster Management and elaborate any five mitigation measures to be adopted for Forest Fires. | Extreme-temperature / industrial / fire hazard management Management measures for the stated hazard Hazard(s): Fire Required treatment: mitigation Units 1, 3 · theory application | Solved | | [2023-12-04 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q7a/) | 10 | Explain in detail classification types for the case study of “Bhopal Gas Accident”. | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Gas release Required treatment: types / classifications Units 1, 5 · case application | Solved | | [2023-12-04 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q7b/) | 10 | Create a checklist of any 10 Do’s to avoid Industrial Chemical Accidents citing relevant examples. | Extreme-temperature / industrial / fire hazard management Required treatment: explained checklist Units 1 · theory application | Solved | | [2023-07-05 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1a/) | 5 | Discuss in detail with relevant examples types of Disasters on basis of Cause of Disaster. | Disaster classification: cause, occurrence, impact and/or legal boundaries Required treatment: causes / mechanism, types / classifications Units 1 · theory application | Solved | | [2023-07-05 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q7b/) | 10 | Elaborate the classification types on basis of cause, characteristics, impact component and legal boundaries for the case study of “Nisarg Cyclone” and justify the same in detail. | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Cyclone, Nisarga cyclone Required treatment: causes / mechanism, types / classifications, effects / impacts Units 1, 5 · case application | Solved | | [2023-05-04 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1d/) | 5 | Discuss in detail how a cyclone is formed with a neat sketch. | Cyclone — mechanism and components Hazard(s): Cyclone Required treatment: labelled sketch Units 1 · theory application | Solved | | [2023-05-04 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q7b/) | 10 | Elaborate the classification types for the case study of “Kerala Floods” and justify the same in detail. | Disaster classification: cause, occurrence, impact and/or legal boundaries Hazard-specific application: Flood Named case used as the application context Hazard(s): Flood Required treatment: types / classifications Units 1, 2, 5 · case application | Solved | | [2023-02-07 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q3a/) | 10 | Establish and explain in detail the classification of four types of Disaster for the case study of “The Nisarg Cyclone”. | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Cyclone, Nisarga cyclone Required treatment: types / classifications Units 1, 5 · case application | Solved | | [2022-12-01 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1a/) | 4 | Differentiate between Disaster and Hazard citing any two relevant examples. | Risk / hazard / vulnerability / disaster distinctions Required treatment: comparison Units 1 · theory application | Solved | | [2022-12-01 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q2a/) | 10 | Describe in detail the Equation of Disaster and detail each component of the equation citing an example. | Conceptual disaster-risk equation and component meanings Units 1 · theory application | Solved | | [2022-12-01 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q3a/) | 10 | Establish and explain in detail the classification of four types of Disaster for the case study of “The Bhopal Gas Tragedy”. | Disaster classification: cause, occurrence, impact and/or legal boundaries Named case used as the application context Hazard(s): Gas release Required treatment: types / classifications Units 1, 5 · case application | Solved | --- ## TEE · Unit 2 · Earthquakes, floods, droughts and landslides — every PYQ Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--unit-2-pyqs/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/unit-2-pyqs Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated Each row links directly to its full question and answer. The marks belong to the **whole listed part**; a question with two or more topics has no invented split between them. Cross-unit questions appear once under their primary unit here, with all unit tags visible. ## Latest four sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2026-07-10 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q2a/) | 10 | Describe in detail with neat sketch 3 types of boundaries for earthquakes. Also state the causes of earthquake | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: causes / mechanism, types / classifications, labelled sketch Units 2 · theory application | Solved | | [2026-07-10 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q3a/) | 10 | Describe in detail citing relevant examples 5 mitigation measures that can be adopted for Droughts Disaster. | Drought — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Drought Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2026-07-10 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q5a/) | 10 | An area faces River Floods frequently. Suggest any 4 mitigation measures that can be adopted for the same. Describe and Justify your suggestion in detail with sketches. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: mitigation, labelled sketch Units 2, 3 · theory application | Solved | | [2026-05-15 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1a/) | 5 | Elaborate in detail the causes of earthquakes with a neat sketch | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: causes / mechanism, labelled sketch Units 2 · theory application | Solved | | [2026-05-15 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1b/) | 5 | State and explain in detail any 4 mitigation measures that can be adopted in case of landslides due to heavy rainfall in an area. | Landslide — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Landslide Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2026-05-15 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q2a/) | 10 | Illustrate and explain in detail with neat sketch 3 types of waves for earthquakes. Also state the 2 types of earthquakes on earthquake on basis of plate boundaries | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: types / classifications, labelled sketch Units 2 · theory application | Solved | | [2026-05-15 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q3a/) | 10 | Describe in detail citing relevant examples 5 mitigation measures that can be adopted for River flood Disaster. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2026-05-15 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q5a/) | 10 | The area faces Coastal Flash Floods frequently. Recommend any 4 mitigation measures that can be adopted for the same. Describe and justify your suggestion in detail with sketches. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: mitigation, labelled sketch Units 2, 3 · theory application | Solved | | [2026-02-12 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1b/) | 5 | The city council, of a city is facing problem of consequent River Floods during monsoon. In past decade the city has developed from Tier -II city to Tier – I city. What would be your suggestion for preparedness measures that the council can adopted to reduce the vulnerability and risk of the disaster. Elaborate your suggestion (any 4) in brief. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: preparedness Units 2, 3 · theory application | Solved | | [2026-02-12 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q2a/) | 10 | Discuss in detail with neat sketch any 3 types of seismic waves. Also explain the concept of cordon-off zone and draft typical cordon-off zone for each type of seismic waves. | Seismic waves and earthquake processes Hazard-based cordons and controlled access Hazard(s): Earthquake Required treatment: types / classifications, labelled sketch Units 2, 3 · theory application | Solved | | [2026-02-12 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q2b/) | 10 | Explain in detail any 5 the preparedness and mitigation measures adopted for of Droughts Disaster Management | Drought — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Drought Required treatment: mitigation, preparedness Units 2, 3 · theory application | Solved | | [2026-02-12 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q5a/) | 10 | Describe in brief the 10 Do’s and Don’ts for response to Flash Floods due to cloud burst | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: response Units 2, 3 · theory application | Solved | | [2026-02-12 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q7a/) | 10 | Explain in detail Cause, Characteristics and Mitigation measures for “Topple” type of Landslide. | Landslide — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Landslide Required treatment: causes / mechanism, types / classifications, mitigation Units 2, 3 · theory application | Solved | | [2025-12-10 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q2b/) | 10 | Describe in detail any 4 the mitigation measures adopted for prevention of Landslides. Also state and explain in brief any 4 key causes of Landslides | Landslide — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Landslide Required treatment: causes / mechanism, mitigation Units 2, 3 · theory application | Solved | ## Older sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2025-05-12 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q2b/) | 10 | Enlist and elaborate in detail any 5 techniques for mitigation of River Floods. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2025-05-12 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q4a/) | 10 | State 7 Do’s and 3 Don’ts as response to Earthquake. | Earthquake — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Earthquake Required treatment: response Units 2, 3 · theory application | Solved | | [2025-05-12 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q5a/) | 10 | Explain in brief classification of floods on basis of sources and duration. Also state examples of the same occurred in India for each type. | Flood classification by source and onset / duration Hazard(s): Flood Required treatment: types / classifications Units 2 · theory application | Solved | | [2025-02-25 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q3a/) | 10 | Illustrate with neat sketch any 2 types of waves causing earthquake and any 2 types of earthquakes. Also explain the same in detail. | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: types / classifications, labelled sketch Units 2 · theory application | Solved | | [2025-02-25 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q3b/) | 10 | Describe in brief any 5 Do’s and Don’ts for individual response during Coastal Floods. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: response Units 2, 3 · theory application | Solved | | [2025-02-25 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q4b/) | 10 | Critically evaluate the five preparedness measures for mitigating the effects of earthquakes and droughts in an area. | Earthquake / Drought — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Earthquake, Drought Required treatment: effects / impacts, preparedness, critical evaluation Units 2, 3 · theory application | Solved | | [2025-02-25 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q5a/) | 10 | State and elaborate in brief any 5 Do’s and Don’ts for response during landslides. | Landslide — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Landslide Required treatment: response Units 2, 3 · theory application | Solved | | [2024-12-10 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q3a/) | 10 | Illustrate with neat sketch any 2 types of Landslides and their specific mitigation measures. Also explain the same in detail. | Landslide — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Landslide Required treatment: types / classifications, mitigation, labelled sketch Units 2, 3 · theory application | Solved | | [2024-12-10 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q3b/) | 10 | State and elaborate in brief any 5 Do’s and Don’ts for individual response during Flash Floods. | Flood — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood Required treatment: response Units 2, 3 · theory application | Solved | | [2024-12-10 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q5a/) | 10 | State and elaborate in brief any 5 Do’s and Don’ts for response during Earthquakes. | Earthquake — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Earthquake Required treatment: response Units 2, 3 · theory application | Solved | | [2024-12-10 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q6a/) | 10 | Differentiate between preparedness and mitigation measures for Floods and Droughts. | Flood / Drought — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Flood, Drought Required treatment: mitigation, preparedness, comparison Units 2, 3 · theory application | Solved | | [2023-12-04 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1c/) | 5 | Explain in brief any five mitigation measures adopted for Earthquake Disaster Management. | Earthquake — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Earthquake Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2023-12-04 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q2b/) | 10 | Compare in detail Do’s and Don’ts for Earthquake and Tsunami Disasters. | Earthquake / Tsunami — mechanisms, types, effects or management Hazard context: Earthquake / Tsunami Hazard(s): Earthquake, Tsunami Units 2, 1 · theory application | Solved | | [2023-12-04 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q5b/) | 10 | Discuss in detail the cause, effects and mitigation measures for Droughts. | Drought — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Drought Required treatment: causes / mechanism, effects / impacts, mitigation Units 2, 3 · theory application | Solved | | [2023-07-05 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1c/) | 5 | Elaborate in brief any 5 measures that can be adopted to avoid flooding of Rivers. | Flood — mechanisms, types, effects or management Hazard(s): Flood Units 2 · theory application | Solved | | [2023-07-05 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1d/) | 5 | Discuss in detail the three causes resulting in earthquakes with neat sketches. | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: causes / mechanism, labelled sketch Units 2 · theory application | Solved | | [2023-07-05 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q4b/) | 10 | Discuss in detail any five mitigation measures for prevention of Landslides with neat sketches as applicable. | Landslide — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Landslide Required treatment: mitigation, labelled sketch Units 2, 3 · theory application | Solved | | [2023-05-04 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1a/) | 5 | Discuss in detail types of Floods on basis of duration of onset of floods with relevant examples. | Flood — mechanisms, types, effects or management Hazard(s): Flood Required treatment: types / classifications Units 2 · theory application | Solved | | [2023-05-04 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q4b/) | 10 | Discuss in detail any five mitigation measures for prevention of Droughts. | Drought — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Drought Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2023-02-07 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q2a/) | 10 | Describe in detail the three main causes of earthquakes illustrating them with neat sketches. | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: causes / mechanism, labelled sketch Units 2 · theory application | Solved | | [2023-02-07 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q4a/) | 10 | Describe in detail any four types of impact observed in reference to topography and ground profiling due to earthquake. | Earthquake — mechanisms, types, effects or management Hazard(s): Earthquake Required treatment: types / classifications, effects / impacts Units 2 · theory application | Solved | | [2023-02-07 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q5b/) | 10 | Discuss in detail at least 10 significances of Mitigation in a Seismic Zone prone to frequent Earthquakes. | Earthquake — mechanisms, types, effects or management Management measures for the stated hazard Hazard(s): Earthquake Required treatment: mitigation Units 2, 3 · theory application | Solved | | [2023-02-07 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q7b/) | 10 | Describe in detail any five preventive measures for Droughts reoccurrence. | Drought — mechanisms, types, effects or management Hazard(s): Drought Units 2 · theory application | Solved | | [2022-12-01 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q6a/) | 10 | Discuss in detail with relevant case-study examples four types of Floods. | Flood — mechanisms, types, effects or management Named case used as the application context Hazard(s): Flood Required treatment: types / classifications Units 2, 5 · case application | Solved | --- ## TEE · Unit 3 · Mitigation, management, institutions and warning — every PYQ Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--unit-3-pyqs/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/unit-3-pyqs Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated Each row links directly to its full question and answer. The marks belong to the **whole listed part**; a question with two or more topics has no invented split between them. Cross-unit questions appear once under their primary unit here, with all unit tags visible. ## Latest four sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2026-07-10 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1b/) | 5 | With neat sketch describe any 2 mitigation measures for developing coping capacity to create resilience against Tsunami | Preparedness / mitigation / response / recovery measures Hazard context: Tsunami Hazard(s): Tsunami Required treatment: mitigation, labelled sketch Units 3, 1 · theory application | Solved | | [2026-07-10 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1c/) | 5 | Explain in detail Early Warning System helped in reducing the impacts of Cyclone in Case of Nisarg Cyclone. Also elaborate in brief any two early warning system adopted for Nisarg Cyclone | Early warning / institutions / coordination Hazard context: Cyclone / Nisarga cyclone Named case used as the application context Hazard(s): Cyclone, Nisarga cyclone Required treatment: effects / impacts Units 3, 1, 5 · case application | Solved | | [2026-07-10 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q2b/) | 10 | Elaborate with neat sketches application of Cordon- off Zones for Coastal Floods | Hazard-based cordons and controlled access Hazard-specific application: Flood Hazard(s): Flood Required treatment: labelled sketch Units 3, 2 · theory application | Solved | | [2026-07-10 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q5b/) | 10 | State and elaborate in brief 10 general ethical principles to be followed in Disaster management. | General / response ethical principles Units 3 · theory | Solved | | [2026-07-10 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q7a/) | 10 | Recommend a suitable mitigation measures that can be suitably adopted for capacity development against cyclone. Justify and explain any such 4 measures in detail. | Preparedness / mitigation / response / recovery measures Hazard context: Cyclone Hazard(s): Cyclone Required treatment: mitigation Units 3, 1 · theory application | Solved | | [2026-07-10 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q7b/) | 10 | Elaborate in detail significance of Disaster Scale in Disaster management. Describe the Disaster Scale with a neat sketch for any one type of Disaster. | Disaster cycle / stages / capacity-based scale Required treatment: types / classifications, labelled sketch Units 3 · theory | Solved | | [2026-05-15 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q2b/) | 10 | Explain in detail the concept of Cordon-off Zone with a neat labelled sketch. Also elaborate its significance in Disaster Response considering Tsunami | Hazard-based cordons and controlled access Hazard context: Tsunami Hazard(s): Tsunami Required treatment: response, labelled sketch Units 3, 1 · theory application | Solved | | [2026-05-15 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q3b/) | 10 | State and elaborate in detail the application of risk mapping for detection of flood prone areas. Explain in detail the 4 steps of Risk Mapping | Hazard / risk mapping, steps and significance Spatial mapping application Hazard-specific application: Flood Hazard(s): Flood Units 3, 4, 2 · theory application | Solved | | [2026-05-15 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q4b/) | 10 | Differentiate between Analysis and Assessment (4 pointers) of a Disaster. Consider the case study of Nisarg Cyclone and elaborate analysis and assessment for the same. | Disaster analysis versus assessment Hazard context: Cyclone / Nisarga cyclone Named case used as the application context Hazard(s): Cyclone, Nisarga cyclone Required treatment: comparison Units 3, 1, 5 · case application | Solved | | [2026-05-15 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q5b/) | 10 | With a neat sketch explain in detail Disaster Cycle. Also elaborate the same considering Droughts as a disaster | Disaster cycle / stages / capacity-based scale Hazard-specific application: Drought Hazard(s): Drought Required treatment: labelled sketch Units 3, 2 · theory application | Solved | | [2026-05-15 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q7b/) | 10 | Enlist and Elaborate in detail (any 8) ethical principles to be adopted during the disaster with relevant example | General / response ethical principles Units 3 · theory application | Solved | | [2026-02-12 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1d/) | 5 | Describe the key details (5 points) in brief for the post-disaster response by NDMA in case of “Nisarg Cyclone” | Early warning / institutions / coordination Hazard context: Cyclone / Nisarga cyclone Named case used as the application context Hazard(s): Cyclone, Nisarga cyclone Required treatment: response Units 3, 1, 5 · case application | Solved; source limitation below answer | | [2026-02-12 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q5b/) | 10 | With a neat sketch explain in detail Disaster Scale. Considering Cyclone as Disaster Elaborate explain in brief level of Disaster Scale | Disaster cycle / stages / capacity-based scale Hazard context: Cyclone Hazard(s): Cyclone Required treatment: labelled sketch Units 3, 1 · theory application | Solved | | [2026-02-12 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q6b/) | 10 | Explain in detail the concept of “Hazard Mapping”. Also elaborate in detail its significance for its application in Disaster Preparedness considering any 2 types of Disasters. | Hazard / risk mapping, steps and significance Spatial mapping application Required treatment: types / classifications, preparedness Units 3, 4 · theory | Solved | | [2026-02-12 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q7b/) | 10 | Disaster Management Cell of a Coastal City is planning to implement Early Warning Systems. Suggest which Modes (any 3) of Early Warning you would recommend considering Coastal Flood, and Cyclone as Disaster Commonly faced by the city. Justify your suggestion in brief. | Early warning / institutions / coordination Hazard-specific application: Flood / Cyclone Hazard context: Flood / Cyclone Hazard(s): Flood, Cyclone Units 3, 2, 1 · theory application | Solved | | [2025-12-10 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q3a/) | 10 | Describe in brief need for application of Ethical Principles in Disaster Management. Also explain in brief any 8 ethical principles to be adopted during the Disaster Response. | General / response ethical principles Required treatment: response Units 3 · theory | Solved | | [2025-12-10 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q5a/) | 10 | Explain in detail the any 5 Mitigation Measures that can be adopted for Cyclones in case of Coastal cities | Preparedness / mitigation / response / recovery measures Hazard context: Cyclone Hazard(s): Cyclone Required treatment: mitigation Units 3, 1 · theory application | Solved | | [2025-12-10 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q5b/) | 10 | Draft the hierarchy chart for Flood Management in India and explain the role of each component in brief. Also, explain how inter-linking of rivers can reduce the risk of River Floods. | Early warning / institutions / coordination Hazard-specific application: Flood Hazard(s): Flood Units 3, 2 · theory application | Solved | | [2025-12-10 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q6b/) | 10 | Elaborate in detail the concept of Cordon-Off Zone. Also Draft a typical Cordon-Off Zone to be adopted for the Tsunami Disaster Management | Hazard-based cordons and controlled access Hazard context: Tsunami Hazard(s): Tsunami Units 3, 1 · theory application | Solved | ## Older sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2025-05-12 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1a/) | 5 | Distinguish between Analysis and Assessment of a Disaster. | Disaster analysis versus assessment Units 3 · theory | Solved | | [2025-05-12 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q3a/) | 10 | State the 4 levels of Early Warning system and elaborate each in detail citing relevant examples for each level. | Early warning / institutions / coordination Units 3 · theory application | Solved | | [2025-05-12 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q5b/) | 10 | Discuss in detail with neat sketch Disaster Cycle and explain progression of scale considering any one Disaster. | Disaster cycle / stages / capacity-based scale Required treatment: labelled sketch Units 3 · theory | Solved | | [2025-05-12 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q6b/) | 10 | Discuss in detail Preparedness and Response stages of Disaster Relief for Cyclone Disaster. | Preparedness / mitigation / response / recovery measures Hazard context: Cyclone Hazard(s): Cyclone Required treatment: preparedness, response Units 3, 1 · theory application | Solved | | [2025-05-12 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q7b/) | 10 | Describe in detail role of cordon-off zones in 4 phases of disaster relief for Tsunami. | Hazard-based cordons and controlled access Hazard context: Tsunami Hazard(s): Tsunami Units 3, 1 · theory application | Solved | | [2025-02-25 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1b/) | 5 | With a neat sketch, elaborate in detail various stages of Disaster Scale considering any one type of disaster. | Disaster cycle / stages / capacity-based scale Required treatment: types / classifications, labelled sketch Units 3 · theory | Solved | | [2025-02-25 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q6a/) | 10 | Differentiate between preparedness and response measures for tsunami and cyclone disasters. | Preparedness / mitigation / response / recovery measures Hazard context: Tsunami / Cyclone Hazard(s): Tsunami, Cyclone Required treatment: preparedness, response, comparison Units 3, 1 · theory application | Solved | | [2025-02-25 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q6b/) | 10 | Enlist and explain in brief any 8 Ethical Principles applied in response phase of Disaster Management. | General / response ethical principles Required treatment: response Units 3 · theory | Solved | | [2024-12-10 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1b/) | 5 | With neat labelled sketch elaborate in detail the phases of Disaster Cycle considering any one type of disaster. | Disaster cycle / stages / capacity-based scale Required treatment: types / classifications, labelled sketch Units 3 · theory | Solved | | [2024-12-10 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q4b/) | 10 | Critically evaluate the five preparedness measures for mitigating the effects of cyclones and tsunamis in coastal areas. | Preparedness / mitigation / response / recovery measures Hazard context: Tsunami / Cyclone Hazard(s): Tsunami, Cyclone Required treatment: effects / impacts, preparedness, critical evaluation Units 3, 1 · theory application | Solved | | [2024-12-10 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q6b/) | 10 | Enlist and explain in brief any 8 General Principles adopted during Disaster Management. | General / response ethical principles Units 3 · theory | Solved | | [2023-12-04 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1b/) | 5 | Elaborate any five don’ts for response during the Tsunami Disaster. | Preparedness / mitigation / response / recovery measures Hazard context: Tsunami Hazard(s): Tsunami Required treatment: response Units 3, 1 · theory application | Solved | | [2023-07-05 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1b/) | 5 | Discuss in detail the need, significance and benefits of Mitigation Measures for Disaster Management. | Preparedness / mitigation / response / recovery measures Required treatment: mitigation Units 3 · theory | Solved | | [2023-07-05 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q2a/) | 10 | Discuss in detail any five functions and responsibilities of NDMA India. | Early warning / institutions / coordination Units 3 · theory | Solved | | [2023-07-05 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q3b/) | 10 | Discuss any 10 points that need to be considered during the Recovery Phase for a Tsunami Disaster. | Preparedness / mitigation / response / recovery measures Hazard context: Tsunami Hazard(s): Tsunami Required treatment: recovery Units 3, 1 · theory application | Solved | | [2023-07-05 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q4a/) | 10 | Discuss in detail any five ways adopted for Risk Reduction. | Preparedness / mitigation / response / recovery measures Units 3 · theory | Solved | | [2023-07-05 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q5a/) | 10 | Discuss in detail any five general principles of Disaster Management citing suitable examples for each principle. | General / response ethical principles Units 3 · theory application | Solved | | [2023-07-05 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q5b/) | 10 | Discuss in detail the Cordon-Off Zones. Elaborate their significance citing relevant examples in Disaster Management for Tsunami. | Hazard-based cordons and controlled access Hazard context: Tsunami Hazard(s): Tsunami Units 3, 1 · theory application | Solved | | [2023-05-04 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1b/) | 5 | Discuss in detail the significance and benefits of Preparedness Measures for Disaster Management. | Preparedness / mitigation / response / recovery measures Required treatment: preparedness Units 3 · theory | Solved | | [2023-05-04 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q3b/) | 10 | Discuss any 10 points that need to be considered during the Recovery Phase for a Cyclone Disaster. | Preparedness / mitigation / response / recovery measures Hazard context: Cyclone Hazard(s): Cyclone Required treatment: recovery Units 3, 1 · theory application | Solved | | [2023-05-04 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q4a/) | 10 | Discuss in detail with a neat sketch Risk Mapping and explain in detail the four steps of Risk Mapping. Also elaborate in brief the significance of Risk Mapping. | Hazard / risk mapping, steps and significance Spatial mapping application Required treatment: labelled sketch Units 3, 4 · theory | Solved | | [2023-05-04 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q5a/) | 10 | Discuss in detail any five general principles of Disaster Management citing suitable examples for each principle. | General / response ethical principles Units 3 · theory application | Solved | | [2023-05-04 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q5b/) | 10 | Discuss in detail the Cordon-Off Zones. Elaborate their significance citing relevant examples in Disaster Management for Floods. | Hazard-based cordons and controlled access Hazard-specific application: Flood Hazard(s): Flood Units 3, 2 · theory application | Solved | | [2023-02-07 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1b/) | 4 | Discuss in brief Risk Reduction Measures to avoid disaster. | Preparedness / mitigation / response / recovery measures Units 3 · theory | Solved | | [2023-02-07 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q4b/) | 10 | Illustrate in detail with neat sketch Disaster Scale citing suitable examples for each level of the scale. Also state its significance. | Disaster cycle / stages / capacity-based scale Required treatment: labelled sketch Units 3 · theory application | Solved | | [2023-02-07 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q5a/) | 10 | Describe in detail application of Modes of Early Warning System in Disaster Management of Earthquakes. | Early warning / institutions / coordination Hazard-specific application: Earthquake Hazard(s): Earthquake Units 3, 2 · theory application | Solved | | [2022-12-01 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1b/) | 4 | Elaborate the role of Early Warning System for Cyclone Disaster Management. | Early warning / institutions / coordination Hazard context: Cyclone Hazard(s): Cyclone Units 3, 1 · theory application | Solved | | [2022-12-01 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1c/) | 4 | Discuss in detail four key NGOs in Disaster Management. | Preparedness / mitigation / response / recovery measures Units 3 · theory | Solved | | [2022-12-01 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1d/) | 4 | Discuss with examples in brief any four Ethical Principles of Disaster Management. | General / response ethical principles Units 3 · theory application | Solved | | [2022-12-01 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q4a/) | 10 | Discuss in brief any five General Principles of Disaster Management with relevant examples. | General / response ethical principles Units 3 · theory application | Solved | | [2022-12-01 · Q5A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q5a/) | 10 | Describe in detail six stages of Disaster Management citing relevant examples. | Disaster cycle / stages / capacity-based scale Units 3 · theory application | Solved | | [2022-12-01 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q7a/) | 10 | Describe in detail with neat sketches the significance of Cordon-off zones for Disaster Management of River Floods. | Hazard-based cordons and controlled access Hazard-specific application: Flood Hazard(s): Flood Required treatment: labelled sketch Units 3, 2 · theory application | Solved | --- ## TEE · Unit 4 · Training, awareness, GIS and remote sensing — every PYQ Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--unit-4-pyqs/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/unit-4-pyqs Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated Each row links directly to its full question and answer. The marks belong to the **whole listed part**; a question with two or more topics has no invented split between them. Cross-unit questions appear once under their primary unit here, with all unit tags visible. ## Latest four sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2026-07-10 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1d/) | 5 | Discuss in detail role of Trainings and drills as a mitigation measure adopted for Industrial Gas Leaks. | Training, drills and preparedness awareness Hazard context: Gas release Management measures for the stated hazard Hazard(s): Gas release Required treatment: mitigation Units 4, 1, 3 · theory application | Solved | | [2026-07-10 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q3b/) | 10 | Which 4 type of mode of communication you would have adopted for communication in case of Uttarakhand Forest Fires, and why. Elaborate in detail any 4 modes of communication in detail. | Warning / disaster communication and media roles Hazard context: Fire Named case used as the application context Hazard(s): Fire Required treatment: types / classifications Units 4, 1, 5 · case application | Solved | | [2026-07-10 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q4a/) | 10 | Explain the detail the application of GIS in Disaster Management during the recovery stage | GIS / remote sensing / technology application Management measures for the stated hazard Required treatment: recovery Units 4, 3 · theory | Solved | | [2026-07-10 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q6a/) | 10 | Explain “Methane” as the incident reporting protocol for structured communication | METHANE disaster reporting Units 4 · theory | Solved | | [2026-07-10 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q6b/) | 10 | Discuss in detail the role of Emergency Expert in Disaster management citing relevant examples. | Emergency response expert responsibilities Units 4 · theory application | Solved | | [2026-05-15 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1d/) | 5 | Describe in detail the need and objective of awareness generation about disaster preparedness. | Training, drills and preparedness awareness Management measures for the stated hazard Required treatment: preparedness Units 4, 3 · theory | Solved | | [2026-05-15 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q4a/) | 10 | Discuss in detail the concept of Assembly Point and Communication Plan in Drills. Also state any 8 key components of Preparedness Kit | Emergency kits and assembly arrangements Management measures for the stated hazard Required treatment: preparedness Units 4, 3 · theory | Solved | | [2026-05-15 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q6a/) | 10 | Describe the role of GIS in training and conducting drills considering any one type of natural disaster | GIS / remote sensing / technology application Required treatment: types / classifications Units 4 · theory | Solved | | [2026-05-15 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q6b/) | 10 | “Media play a very significant role in Disaster Management” describe in detail with relevant justification and examples the statement for 4 types of media commonly considered. | Warning / disaster communication and media roles Required treatment: types / classifications Units 4 · theory application | Solved | | [2026-02-12 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1c/) | 5 | Describe in detail citing any 3 relevant examples, how Training and Drills create awareness about Disaster Response. | Training, drills and preparedness awareness Management measures for the stated hazard Required treatment: response Units 4, 3 · theory application | Solved | | [2026-02-12 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q3b/) | 10 | Explain the significance of “METHANE” in reporting an Incident. Also explain in brief 3 key objectives for training drills for earthquakes. | METHANE disaster reporting Hazard-specific application: Earthquake Hazard(s): Earthquake Units 4, 2 · theory application | Solved | | [2026-02-12 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q6a/) | 10 | Explain in detail how GIS can prove to be an efficient tool for Tsunami Disaster Management for 4 phases of Disaster Relief | GIS / remote sensing / technology application Four management phases Hazard context: Tsunami Hazard(s): Tsunami Units 4, 3, 1 · theory application | Solved | | [2025-12-10 · Q1B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1b/) | 5 | The IMD has informed a Cyclone to hit the coastal city in 72 hours on basis of its travel speed. You are part of Disaster Preparedness team of City Council. Explain how will you communicate the information by any 2 modes of communication, so that it has the maximum reach. Elaborate the modes to adopted in detail. | Warning / disaster communication and media roles Hazard context: Cyclone Management measures for the stated hazard Hazard(s): Cyclone Required treatment: preparedness Units 4, 1, 3 · theory application | Solved | | [2025-12-10 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1c/) | 5 | Elaborate in detail Need and Objective of Training and Drills for Disaster Preparedness | Training, drills and preparedness awareness Management measures for the stated hazard Required treatment: preparedness Units 4, 3 · theory | Solved | | [2025-12-10 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q3b/) | 10 | Prepare the checklist for 10 key considerations for Planning of Fire Drill in an Institution Building | Training, drills and preparedness awareness Hazard(s): Fire Required treatment: explained checklist Units 4 · theory application | Solved | | [2025-12-10 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q6a/) | 10 | Describe in detail, How GIS can help in Hazard Mapping for Droughts citing relevant examples | GIS / remote sensing / technology application Hazard-specific application: Drought Hazard(s): Drought Units 4, 2 · theory application | Solved | ## Older sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2025-05-12 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1c/) | 5 | State the 5 responsibilities of an emergency response expert in Fire drill. | Emergency response expert responsibilities Management measures for the stated hazard Hazard(s): Fire Required treatment: response Units 4, 3 · theory application | Solved | | [2025-05-12 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q3b/) | 10 | “GIS is an effective tool for River Flood Disaster Management”. Explain the statement in detail. Elaborate in brief how it can be adopted in four Phases of Disaster Relief. | GIS / remote sensing / technology application Four management phases Hazard-specific application: Flood Hazard(s): Flood Required treatment: effects / impacts Units 4, 3, 2 · theory application | Solved | | [2025-05-12 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q6a/) | 10 | Draft the 10-pointer checklist defining role of Emergency Response Expert for conducting drill for Gas Leak, for Industrial Training. | Emergency response expert responsibilities Hazard context: Gas release Management measures for the stated hazard Hazard(s): Gas release Required treatment: response, explained checklist Units 4, 1, 3 · theory application | Solved | | [2025-05-12 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q7a/) | 10 | Describe in detail citing relevant examples how Engineers can prove to be effective emergency response expert for reducing the adverse impacts of disasters. | Engineers: specialist emergency-management roles Management measures for the stated hazard Required treatment: effects / impacts, response Units 4, 3 · theory application | Solved | | [2025-02-25 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1c/) | 5 | Demonstrate in detail the application of GIS in 4 phases of Tsunami Disaster Management considering a case study example. | GIS / remote sensing / technology application Four management phases Hazard context: Tsunami Named case used as the application context Hazard(s): Tsunami Units 4, 3, 1, 5 · case application | Solved | | [2025-02-25 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q2a/) | 10 | Discuss in detail any 5 considerations to be taken into account while planning a drill for Fire Safety in a Commercial Building. | Training, drills and preparedness awareness Hazard(s): Fire Units 4 · theory application | Solved | | [2025-02-25 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q4a/) | 10 | Analysing the case study of “Uttarakhand Forest Fires”, elaborate in detail how Warning systems and Drone Technology can be adopted for such Disaster Management Preparedness and Response citing relevant examples. | GIS / remote sensing / technology application Hazard context: Fire Management measures for the stated hazard Named case used as the application context Hazard(s): Fire Required treatment: preparedness, response Units 4, 1, 3, 5 · case application | Solved | | [2024-12-10 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1c/) | 5 | Demonstrate in detail the application of GIS in 4 phases of Droughts Disaster Management considering a case study example. | GIS / remote sensing / technology application Four management phases Hazard-specific application: Drought Named case used as the application context Hazard(s): Drought Units 4, 3, 2, 5 · case application | Solved | | [2024-12-10 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q2a/) | 10 | Discuss in detail any 5 considerations to be taken into account while designing an Awareness Program for Fire Outbreak Preparedness. | Training, drills and preparedness awareness Management measures for the stated hazard Hazard(s): Fire Required treatment: preparedness Units 4, 3 · theory application | Solved | | [2024-12-10 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q4a/) | 10 | Analysing the case study of “Indian Ocean Tsunami”, elaborate in detail how Warning systems and Drone Technology can be adopted for such Disaster Management Preparedness and Response citing relevant examples. | GIS / remote sensing / technology application Hazard context: Tsunami Management measures for the stated hazard Named case used as the application context Hazard(s): Tsunami Required treatment: preparedness, response Units 4, 1, 3, 5 · case application | Solved | | [2023-12-04 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1d/) | 5 | Discuss in detail the significance and benefits of Training and Drills for Disaster Preparedness for Oil Spills Accident. | Training, drills and preparedness awareness Hazard context: Oil spill Management measures for the stated hazard Hazard(s): Oil spill Required treatment: preparedness Units 4, 1, 3 · theory application | Solved | | [2023-12-04 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q3b/) | 10 | Elaborate citing any five suitable examples how new advanced technologies can be adopted in disaster management. | GIS / remote sensing / technology application Units 4 · theory application | Solved | | [2023-12-04 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q4a/) | 10 | Explain in detail the role of GIS in effective Disaster management for Landslides. | GIS / remote sensing / technology application Hazard-specific application: Landslide Hazard(s): Landslide Required treatment: effects / impacts Units 4, 2 · theory application | Solved | | [2023-12-04 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q6b/) | 10 | Demonstrate how GIS can be suitably adopted for Flash Floods Disaster Management. | GIS / remote sensing / technology application Hazard-specific application: Flood Hazard(s): Flood Units 4, 2 · theory application | Solved | | [2023-07-05 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q2b/) | 10 | Discuss in detail how GIS Application can help in Efficient Earthquake Disaster Management citing relevant examples. | GIS / remote sensing / technology application Hazard-specific application: Earthquake Hazard(s): Earthquake Units 4, 2 · theory application | Solved | | [2023-07-05 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q6a/) | 10 | Elaborate in detail any 10 considerations that you shall consider while drafting a Training manual for Disaster Management in case of Fire Accident. | Training, drills and preparedness awareness Hazard(s): Fire Units 4 · theory application | Solved | | [2023-07-05 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q6b/) | 10 | Discuss in detail role of Engineers (any four specialisations) in Disaster Management. | Engineers: specialist emergency-management roles Units 4 · theory | Solved | | [2023-07-05 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q7a/) | 10 | Prepare and discuss in brief a 10-pointer list to be considered in planning a Preparedness awareness program for a drought-prone area. | Training, drills and preparedness awareness Hazard-specific application: Drought Management measures for the stated hazard Hazard(s): Drought Required treatment: preparedness Units 4, 2, 3 · theory application | Solved | | [2023-05-04 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1c/) | 5 | Elaborate in brief any five components of an emergency kit for cyclone preparedness. | Emergency kits and assembly arrangements Hazard context: Cyclone Management measures for the stated hazard Hazard(s): Cyclone Required treatment: preparedness Units 4, 1, 3 · theory application | Solved | | [2023-05-04 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q2a/) | 10 | Discuss in detail Disaster Reporting and Management hierarchy in India. | METHANE disaster reporting Indian management hierarchy Units 4, 3 · theory | Solved | | [2023-05-04 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q2b/) | 10 | Discuss in detail how GIS Application can help in Efficient Flood Disaster Management citing relevant examples. | GIS / remote sensing / technology application Hazard-specific application: Flood Hazard(s): Flood Units 4, 2 · theory application | Solved | | [2023-05-04 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q6a/) | 10 | Elaborate in detail any 10 considerations that you shall consider while drafting a Training manual for Disaster Management in case of Cyclone. | Training, drills and preparedness awareness Hazard context: Cyclone Hazard(s): Cyclone Units 4, 1 · theory application | Solved | | [2023-05-04 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q6b/) | 10 | Discuss in detail the role of media in Disaster Management citing relevant examples. | Warning / disaster communication and media roles Units 4 · theory application | Solved | | [2023-05-04 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q7a/) | 10 | Prepare and discuss in brief a 10-pointer list to be considered in planning a Preparedness awareness program for an area predicted for landslides. | Training, drills and preparedness awareness Hazard-specific application: Landslide Management measures for the stated hazard Hazard(s): Landslide Required treatment: preparedness Units 4, 2, 3 · theory application | Solved | | [2023-02-07 · Q1A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1a/) | 4 | Discuss in detail significance of awareness in Disaster Management considering any one type of disaster. | Training, drills and preparedness awareness Required treatment: types / classifications Units 4 · theory | Solved | | [2023-02-07 · Q1C](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1c/) | 4 | Differentiate between Training and Drill citing at least two relevant examples. | Training, drills and preparedness awareness Required treatment: comparison Units 4 · theory application | Solved | | [2023-02-07 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1d/) | 4 | Discuss in detail the four key roles of Media in Disaster Management. | Warning / disaster communication and media roles Units 4 · theory | Solved | | [2023-02-07 · Q1E](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1e/) | 4 | Discuss in detail significance of Fire Drills in High Rise Buildings and elaborate any two points from Fire Accidents management case. | Training, drills and preparedness awareness Hazard(s): Fire Units 4 · theory application | Solved; source limitation below answer | | [2023-02-07 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q2b/) | 10 | Prepare at least five Do’s and Don’ts draft for training of preparedness for Earthquake. | Training, drills and preparedness awareness Hazard-specific application: Earthquake Management measures for the stated hazard Hazard(s): Earthquake Required treatment: preparedness Units 4, 2, 3 · theory application | Solved | | [2023-02-07 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q3b/) | 10 | Prepare at least five Do’s and Don’ts draft for training of preparedness for Floods. | Training, drills and preparedness awareness Hazard-specific application: Flood Management measures for the stated hazard Hazard(s): Flood Required treatment: preparedness Units 4, 2, 3 · theory application | Solved | | [2023-02-07 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q6b/) | 10 | Describe in detail how GIS can be beneficial in real-time tsunami monitoring. | GIS / remote sensing / technology application Hazard context: Tsunami Hazard(s): Tsunami Units 4, 1 · theory application | Solved | | [2023-02-07 · Q7A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q7a/) | 10 | Discuss in detail application of GIS in Response for Floods Disaster management citing at least 5 examples. | GIS / remote sensing / technology application Hazard-specific application: Flood Management measures for the stated hazard Hazard(s): Flood Required treatment: response Units 4, 2, 3 · theory application | Solved | | [2022-12-01 · Q1E](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1e/) | 4 | Elaborate the four points of difference in Training manual for Tsunami and Cyclone Disaster Management. | Training, drills and preparedness awareness Hazard context: Tsunami / Cyclone Hazard(s): Tsunami, Cyclone Units 4, 1 · theory application | Solved | | [2022-12-01 · Q2B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q2b/) | 10 | Prepare at least five Do’s and Don’ts draft for training of preparedness for Cyclone. | Training, drills and preparedness awareness Hazard context: Cyclone Management measures for the stated hazard Hazard(s): Cyclone Required treatment: preparedness Units 4, 1, 3 · theory application | Solved | | [2022-12-01 · Q3B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q3b/) | 10 | Discuss in detail at least 10 key responsibilities of Emergency response person in case of Tsunami Disasters. | Emergency response expert responsibilities Hazard context: Tsunami Management measures for the stated hazard Hazard(s): Tsunami Required treatment: response Units 4, 1, 3 · theory application | Solved | | [2022-12-01 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q4b/) | 10 | Prepare at least five Do’s and Don’ts draft for training of preparedness for Tsunami. | Training, drills and preparedness awareness Hazard context: Tsunami Management measures for the stated hazard Hazard(s): Tsunami Required treatment: preparedness Units 4, 1, 3 · theory application | Solved | | [2022-12-01 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q5b/) | 10 | Discuss in detail at least 10 key responsibilities of Emergency response person in case of Earthquake Disasters. | Emergency response expert responsibilities Hazard-specific application: Earthquake Management measures for the stated hazard Hazard(s): Earthquake Required treatment: response Units 4, 2, 3 · theory application | Solved | | [2022-12-01 · Q6B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q6b/) | 10 | Prepare at least five Do’s and Don’ts draft for training of preparedness for Cyclone. | Training, drills and preparedness awareness Hazard context: Cyclone Management measures for the stated hazard Hazard(s): Cyclone Required treatment: preparedness Units 4, 1, 3 · theory application | Solved | | [2022-12-01 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q7b/) | 10 | Discuss in detail application of GIS in drought-prone area mapping for drought management. | GIS / remote sensing / technology application Hazard-specific application: Drought Hazard(s): Drought Units 4, 2 · theory application | Solved | --- ## TEE · Unit 5 · Case studies — every PYQ Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--unit-5-pyqs/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/unit-5-pyqs Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated Each row links directly to its full question and answer. The marks belong to the **whole listed part**; a question with two or more topics has no invented split between them. Cross-unit questions appear once under their primary unit here, with all unit tags visible. ## Latest four sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2026-02-12 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q4a/) | 10 | Elaborate in detail the 4 key causes of “Uttarakhand Floods”. Also elaborate in brief how inter-linking of rivers could have played a significant role. | Named disaster case: causes, effects and management lessons Hazard-specific application: Flood Hazard(s): Flood Required treatment: causes / mechanism Units 5, 2 · case study | Solved | | [2025-12-10 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1d/) | 5 | Summarize the key details (5 points) for the case study of “The Panshet Dam Burst Floods” | Named disaster case: causes, effects and management lessons Hazard-specific application: Flood Hazard(s): Flood Units 5, 2 · case study | Solved | | [2025-12-10 · Q4A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q4a/) | 10 | Describe in detail any 6 Mitigation Measure adopted by Governance as part of Post Disaster Management after “Gujarat Earthquake” for earthquakes. | Named disaster case: causes, effects and management lessons Hazard-specific application: Earthquake Management measures for the stated hazard Hazard(s): Earthquake Required treatment: mitigation Units 5, 2, 3 · case study | Solved | ## Older sittings | Question and solution | Marks | Full question | Topic / unit cross-reference | Coverage | | --- | --- | --- | --- | --- | | [2025-02-25 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q7b/) | 10 | Describe in brief any 5 key highlights and adverse effects of “Indian Ocean Tsunami 2004”. | Named disaster case: causes, effects and management lessons Hazard context: Tsunami Hazard(s): Tsunami Required treatment: effects / impacts Units 5, 1 · case study | Solved | | [2024-12-10 · Q7B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q7b/) | 10 | Describe in brief any 5 key highlights and adverse effects of “Gujarat Earthquake - 2001”. | Named disaster case: causes, effects and management lessons Hazard-specific application: Earthquake Hazard(s): Earthquake Required treatment: effects / impacts Units 5, 2 · case study | Solved | | [2023-12-04 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q2a/) | 10 | Explain in detail with respect to its causes and stages of Disaster management the case study of “Tsunami in Indian Ocean, 2004”. | Named disaster case: causes, effects and management lessons Hazard context: Tsunami Hazard(s): Tsunami Required treatment: causes / mechanism Units 5, 1 · case study | Solved | | [2023-12-04 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q4b/) | 10 | Explain in detail with respect to its causes and stages of Disaster management the case study of “Nisarg Cyclone”. | Named disaster case: causes, effects and management lessons Hazard context: Cyclone / Nisarga cyclone Hazard(s): Cyclone, Nisarga cyclone Required treatment: causes / mechanism Units 5, 1 · case study | Solved | | [2023-07-05 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q3a/) | 10 | Discuss in detail the three key causes that resulted in Mumbai Floods 2005. Also suggest any 4 measures of mitigation for reoccurrence of such disaster. | Named disaster case: causes, effects and management lessons Hazard-specific application: Flood Management measures for the stated hazard Hazard(s): Flood Required treatment: causes / mechanism, mitigation Units 5, 2, 3 · case study | Solved | | [2023-05-04 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q3a/) | 10 | Discuss in detail the causes and impacts of “Tamil Nadu Tsunami”. Also suggest any 4 measures of mitigation for reoccurrence of such disaster. | Named disaster case: causes, effects and management lessons Hazard context: Tsunami Management measures for the stated hazard Hazard(s): Tsunami Required treatment: causes / mechanism, effects / impacts, mitigation Units 5, 1, 3 · case study | Solved | | [2023-02-07 · Q6A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q6a/) | 10 | Discuss in brief Uttarakhand Floods 2013 Disaster. | Named disaster case: causes, effects and management lessons Hazard-specific application: Flood Hazard(s): Flood Units 5, 2 · case study | Solved | --- ## TEE · Questions with source ambiguities or case limits Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-guide--source-limits/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-guide/source-limits Twelve distinct paper sittings, 2022–2026; repeated stream copies consolidated These specific limitations do not hide the question or remove its answer. They identify exactly what is printed, what is unclear in a source and where a model answer needs the original classroom case to become exact. | Question / answer | Source issue or limit | | --- | --- | | [2026-05-15 · Q5B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q5b/) | Original paper repeats Q5A. This is the second printed Q5A, indexed as Q5B only to keep the navigation unique; marks remain 10. | | [2026-02-12 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1d/) | Five appropriate post-Nisarga coordination functions are explained with authority/force distinctions. An action-by-action historical attribution of all five to NDMA is not independently verified. | | [2026-02-12 · Q2A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q2a/) | Wave-specific cordon radii are not a scientific standard. Answer preserves the printed demand but explains seismic waves separately and draws a damage-based earthquake cordon. | | [2025-02-25 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1d/) | Source prints Nisarg Cyclone 2021; the answer corrects the event to June 2020 while retaining the printed prompt. | | [2025-02-25 · Q3A](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q3a/) | Waves transmit released energy; they do not cause tectonic rupture. Answer distinguishes the mechanism from the source wording. | | [2024-12-10 · Q1D](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1d/) | Source prints Uttarakhand Floods 2005; answer identifies the major June 2013 event used in these notes and discloses the date mismatch. | | [2023-12-04 · Q4B](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q4b/) | Nisarga facts and general cyclone formation are distinguished from an illustrative phase-by-phase management application; this is not a verified historical operations log. | | [2023-02-07 · Q1E](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1e/) | The exact classroom Fire Accidents management case narrative was not supplied. Two high-rise drill applications are explicitly illustrative, not claimed facts from that missing case. | --- ## TEE · Q1A · Describe in brief the following terms/concepts in reference to Disaster Management – … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q1a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1A. Describe in brief the following terms/concepts in reference to Disaster Management – Risk, Vulnerability, Hazard, Preparedness and Mitigation Measures. [5 marks] #### Answer | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · The IMD has informed a Cyclone to hit the coastal city in 72 hours on basis of its tr… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q1b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1B. The IMD has informed a Cyclone to hit the coastal city in 72 hours on basis of its travel speed. You are part of Disaster Preparedness team of City Council. Explain how will you communicate the information by any 2 modes of communication, so that it has the maximum reach. Elaborate the modes to adopted in detail. [5 marks] #### Answer For a cyclone warning issued about 72 hours before expected adverse conditions, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q1C · Elaborate in detail Need and Objective of Training and Drills for Disaster Preparedne… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q1c Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1C. Elaborate in detail Need and Objective of Training and Drills for Disaster Preparedness [5 marks] #### Answer ## Need 1. **Convert knowledge into action.** People may know an alarm exists but still not know which exit or assembly point to use. Training explains the procedure; a drill rehearses it. 2. **Reduce confusion.** Assigned roles and rehearsed communication reduce duplicated work and missed responsibilities. 3. **Identify weaknesses.** A drill can reveal blocked exits, inaudible alarms, inaccessible routes and inaccurate contact lists. 4. **Include all occupants.** Visitors and people needing assistance must be included in plans rather than assumed to evacuate independently. ## Objectives 1. **Practise safe behaviour.** Participants recognise the warning and follow the correct protective procedure. 2. **Test coordination and accountability.** Wardens, emergency services and occupants communicate and account for people at the assembly point. 3. **Improve the plan.** Observers record delays and gaps; organisers assign corrections and repeat the exercise to verify improvement. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q1D · Summarize the key details (5 points) for the case study of “The Panshet Dam Burst Flo… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q1d Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1D. Summarize the key details (5 points) for the case study of “The Panshet Dam Burst Floods” [5 marks] #### Answer 1. **Event and setting:** Failure of Panshet Dam on 12 July 1961 released floodwater into the Pune river system and contributed to severe flooding. 2. **Causes and vulnerability:** A dam-failure release created rapid downstream inundation; downstream settlements and infrastructure were exposed. 3. **Impacts:** Severe damage to housing, property and services and large-scale displacement in Pune. 4. **Response and recovery:** Emergency evacuation and relief were followed by rebuilding and review of dam and flood safety. 5. **Lessons:** Combine sound design and construction quality with dam surveillance, safe operation, breach-inundation mapping, downstream warnings and rehearsed emergency action plans. #### Real case and learning connection · Panshet and Pune, 1961 The Panshet dam failure is a real example of a structural failure creating downstream flood consequences. In an answer, connect dam design, construction, inspection and warning arrangements to downstream exposure rather than treating every flood as rainfall alone. [Case reference ↗](https://archive.nptel.ac.in/content/storage2/courses/105106114/pdfs/Unit41/41_2.pdf) The key date is 12 July 1961. The event involved rapid flooding followed by a much longer recovery; avoid inventing one exact duration or casualty figure when it is not supplied or verified. --- ## TEE · Q2A · For the Case Study “Bhopal Gas Tragedy” draft the classification chain. Also Explain … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q2a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2A. For the Case Study “Bhopal Gas Tragedy” draft the classification chain. Also Explain detail for classification Disaster on basis of its occurrence and Legal Boundaries [10 marks] #### Answer **Classification chain:** human-induced → industrial chemical release → primarily air contamination and human exposure → local/regional impact with wider national consequences. The lecture labels the regional/state category “domicile”. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. --- ## TEE · Q2B · Describe in detail any 4 the mitigation measures adopted for prevention of Landslides… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q2b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2B. Describe in detail any 4 the mitigation measures adopted for prevention of Landslides. Also state and explain in brief any 4 key causes of Landslides [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. Drainage and stabilisation must match the slope and failure mechanism. ## Four causes 1. **Rainfall and saturation.** Water increases pore pressure and reduces effective resistance along a potential slip surface. Prolonged or intense rain can therefore destabilise an already weak slope. 2. **Earthquake shaking.** Shaking adds dynamic forces and can dislodge fractured rock or weaken soil. Unstable slopes may fail during or after a strong earthquake. 3. **Loss of support or vegetation.** River erosion, road cutting and excavation remove support at the toe; loss of roots can reduce shallow soil reinforcement. 4. **Weak or unfavourable geology.** Steep slopes, weathered material and joints or bedding dipping toward the valley can make movement easier. Construction loads may further disturb the balance. ## Four mitigation measures 1. **Control water.** Maintain surface drains and, where designed, subsurface drainage. Diverting water safely reduces saturation; do not discharge it onto another unstable slope. 2. **Stabilise the slope.** Qualified engineers can use retaining structures, anchors, soil nails or regrading after investigation. The design must suit the failure mechanism and include drainage. 3. **Protect cover and regulate land use.** Restore suitable vegetation, limit quarrying and avoid unsafe toe cutting or building on unstable ground. Vegetation helps some shallow failures but cannot stop every deep landslide. 4. **Map, monitor and prepare.** Use susceptibility maps, rainfall observations and movement indicators to prioritise closures and evacuation. Mark safe routes and train residents to report new cracks or tilting structures. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q3A · Describe in brief need for application of Ethical Principles in Disaster Management. … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q3a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3A. Describe in brief need for application of Ethical Principles in Disaster Management. Also explain in brief any 8 ethical principles to be adopted during the Disaster Response. [10 marks] #### Answer Ethics is needed because scarce resources, urgent decisions and disrupted normal safeguards can lead to exclusion, exploitation and unsafe actions. It provides standards for fair prioritisation, accountability, dignity and public trust. 1. **Humanitarian assistance.** Protect life and provide essentials according to need. For example, distribute safe drinking water to communities whose supply has failed. 2. **Information and participation.** Give accurate, accessible updates and involve affected people. Explain shelter locations in local languages and listen to residents about missing people. 3. **Responsible evacuation.** Use safe routes, transport and accessible shelters; explain the danger and preserve dignity. Any compulsory evacuation must follow lawful authority and necessity. 4. **Respect for dignity.** Protect privacy, sanitation and freedom from exploitation. Separate private changing and washing facilities reduce risks in crowded shelters. 5. **Respect for persons.** Treat survivors respectfully and protect their identity, culture and consent where possible. Do not publish identifiable distressing images merely for publicity. 6. **Assistance for those needing additional support.** Arrange assistance for children, older people, pregnant people and persons with disabilities according to actual needs. Do not separate dependants from carers unnecessarily. 7. **Protection of rescue workers.** Provide training, protective equipment, communication, safe deployment and rest. A fatigued, unprotected responder can become another casualty. 8. **Environmental and social restoration.** Control hazardous waste, protect water sources and restore family/community links. Safe debris disposal and family reunification prevent secondary harm. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q3B · Prepare the checklist for 10 key considerations for Planning of Fire Drill in an Inst… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q3b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3B. Prepare the checklist for 10 key considerations for Planning of Fire Drill in an Institution Building [10 marks] #### Answer A fire drill is a planned rehearsal of emergency procedures. The checklist should test safe action and reveal practical weaknesses without creating a real hazard. Swipe across the diagram to read its labels ↔ ![A drill tests the full evacuation process](https://deep-learning-study-room.vercel.app/dm/fig/evacuation.06122809c0.svg) Diagram: A drill tests the full evacuation process. Labels: A drill tests the full evacuation process | A drill tests the full evacuation process | Alarm | Recognise the signal | Safe movement | Use the assigned exit | Assembly | Count and report | Review | Correct the gaps | Include visitors and people needing assistance; keep emergency access clear. The sequence is alarm → safe exit → assembly → accountability → review. 1. **Assess the building.** Identify ignition sources, fuel, occupancy and high-risk rooms; choose a realistic scenario. 2. **Set objectives.** Decide whether the drill tests alarm recognition, evacuation, assisted movement or accountability. 3. **Inspect exits.** Check that exit routes are marked, usable and free of obstructions; do not create unsafe bottlenecks. 4. **Choose an assembly point.** Select a safe, accessible place away from smoke, structures and emergency vehicle access. 5. **Test communication.** Check alarms and public-address systems; prepare a backup and an unambiguous signal for a real emergency. 6. **Assign responsibilities.** Name an incident coordinator, floor wardens, first-aid staff and people responsible for counting occupants. 7. **Include everyone.** Plan assistance for persons with disabilities, visitors and others needing support; brief helpers in advance. 8. **Coordinate services.** Inform relevant building managers and emergency services; keep equipment ready for trained users. 9. **Observe and account.** Record movement and delays, conduct a headcount, report missing people and keep participants from re-entering. 10. **Debrief and correct.** Review observations, assign corrective actions, update the plan and repeat the drill after improvements. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q4A · Describe in detail any 6 Mitigation Measure adopted by Governance as part of Post Dis… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q4a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4A. Describe in detail any 6 Mitigation Measure adopted by Governance as part of Post Disaster Management after “Gujarat Earthquake” for earthquakes. [10 marks] #### Answer Following the 26 January 2001 earthquake, Gujarat’s recovery programme linked reconstruction with longer-term risk reduction. Six relevant measures are: 1. **Institutional strengthening.** GSDMA was established in February 2001 to coordinate reconstruction and develop preparedness and mitigation capacity. 2. **Safer housing repair and reconstruction.** The programme repaired and rebuilt damaged homes; risk reduction requires appropriate earthquake-resistant design and construction quality rather than simple replacement. 3. **Restoration of critical public facilities.** Schools, hospitals, water systems and other public assets were repaired or reconstructed to restore essential functions and improve safety. 4. **Town planning and access.** Reconstruction in affected towns included improved roads, planned open spaces and services, supporting evacuation and future emergency access. 5. **Training construction workers.** Training and certification of masons and capacity building for engineers promoted earthquake-resistant construction practices. 6. **Community preparedness and long-term systems.** Multi-hazard preparedness, community participation and strengthened emergency-management institutions connected recovery to future resilience. #### Real programme · Gujarat earthquake recovery GSDMA’s reconstruction and mason-training programmes connect recovery with safer rebuilding. The principle is to improve construction capacity and resilience while restoring what was damaged, rather than simply reproduce the previous vulnerability. [Case reference ↗](https://www.gsdma.org/Content/masons-training-certification-programme-4223) --- ## TEE · Q4B · Describe in brief 5 causes and 5 preparedness measures for each - Heat Wave and Cold … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q4b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4B. Describe in brief 5 causes and 5 preparedness measures for each - Heat Wave and Cold Wave. [10 marks] #### Answer ## Heat wave: five causes 1. **Persistent high pressure.** Subsiding air and settled weather can suppress cloud and prolong hot conditions. 2. **Strong solar heating.** Clear skies allow sustained daytime heating; low ventilation can worsen local heat exposure. 3. **Dry soils.** Reduced soil moisture limits evaporative cooling and can intensify near-surface heating. 4. **Urban conditions.** Heat-storing surfaces and limited shade can increase local temperatures and reduce night-time cooling. 5. **Background warming.** Climate change increases the likelihood and severity of many heat extremes, while the details of an individual event also depend on weather patterns. ## Heat wave: five preparedness measures 1. **Alerts and action plans.** Use forecast warnings to activate local heat plans and communicate protective actions. 2. **Water and shade.** Prepare reliable safe drinking water, shaded waiting areas and cooling spaces. 3. **Reschedule exposure.** Move strenuous outdoor work away from the hottest hours and arrange rest and shade. 4. **Protect people at higher risk.** Check on isolated older people, infants, outdoor workers and people with relevant health conditions. 5. **Prepare services.** Train staff to recognise heat illness and arrange access to urgent medical care and reliable power/water. ## Cold wave: five causes 1. **Cold air intrusion.** Air masses from colder regions can sharply lower local temperatures. 2. **Clear nights.** The ground loses heat through radiation when cloud cover is limited. 3. **Light winds.** In some settings light winds allow a shallow cold layer to develop near the surface. 4. **Snow and cold surfaces.** Snow cover and nearby cold terrain can reinforce low temperatures under suitable conditions. 5. **Persistent circulation.** Weather patterns can sustain cold conditions over several days. Climate change does not mean cold events become impossible. ## Cold wave: five preparedness measures 1. **Monitor warnings.** Communicate expected cold conditions and protective actions in accessible forms. 2. **Provide shelter.** Arrange warm, dry night shelters, especially for people without secure housing. 3. **Clothing and bedding.** Provide suitable layered clothing, blankets and protection from wet conditions. 4. **Safe heating.** Prepare safe, ventilated heating and fire precautions; never burn charcoal in an enclosed room. 5. **Support and health services.** Check on vulnerable people and maintain access to care, transport and essential supplies. #### Illustrative application · A city during a heat wave Outdoor workers, older adults and poorly ventilated homes may face different levels of risk during the same hot period. Heat warnings, access to cooling and adjusted work arrangements address vulnerability and exposure; they do not change the weather event itself. --- ## TEE · Q5A · Explain in detail the any 5 Mitigation Measures that can be adopted for Cyclones in c… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q5a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5A. Explain in detail the any 5 Mitigation Measures that can be adopted for Cyclones in case of Coastal cities [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Wind, surge and rain create different protection needs. 1. **Warning and last-mile communication.** Use official forecasts, clear action messages and several communication channels. A forecast must reach fishers, visitors and people without smartphones, with enough time and support to act. 2. **Shelters and evacuation access.** Provide accessible shelters outside surge and flood zones, linked by reliable routes. Practise transport, headcounts and support for people needing assistance so that shelter capacity becomes usable protection. 3. **Resilient buildings and lifelines.** Strengthen roof connections and protect power, water and communication systems to appropriate standards. Hospitals require backup services and protected equipment to keep functioning during response. 4. **Risk-informed coastal land use.** Use surge and flood maps to control exposed development and locate critical infrastructure safely. Protect mangroves and appropriate coastal vegetation as part of a wider protection system, not a guaranteed barrier against every surge. 5. **Drainage and protective works.** Maintain drains and outfalls and use engineered embankments, sea walls or detention where justified by local studies. Consider overtopping, erosion and downstream effects; combine works with warning and evacuation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q5B · Draft the hierarchy chart for Flood Management in India and explain the role of each … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q5b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5B. Draft the hierarchy chart for Flood Management in India and explain the role of each component in brief. Also, explain how inter-linking of rivers can reduce the risk of River Floods. [10 marks] #### Answer Flood management in India combines **central technical support and coordination** with **state planning and implementation**. The lecture identifies the following flood-specific organisations; district and local services turn their plans and warnings into action. ## 1. Flood-management organisation chart Swipe across the diagram to read its labels ↔ ![Flood management in India: central and state coordination](https://deep-learning-study-room.vercel.app/dm/fig/flood-institutions.9a8cc4ec14.svg) Diagram: Flood management in India: central and state coordination. Labels: Flood management in India: central and state coordination | Flood management in India: central and state coordination | Central level: specialist roles and national support | NDMA: disaster policy, guidance and coordination | CWC: river observation, flood forecasts and technical advice | GFCC: Ganga basin flood plans and scheme appraisal | Brahmaputra Board: basin flood, erosion and drainage plans | Farakka Project: barrage operation and regional bank protection | Forecasts, guidance and support | State level: plans, engineering works and emergency readiness | Water Resources Department: prepare, implement and maintain works | Flood Control Board: state priorities and coordination | State Technical Advisory Committee: technical review of proposals | Disaster Management Cell / SDMA: preparedness and response | Local action and feedback | District and local implementation | District administration, local authorities and communities: warnings, evacuation, shelters, local services | and reporting of needs. | Functional links, not a single command chain; state arrangements can vary. A functional coordination chart: central and state bodies cooperate. These are not all subordinate offices of NDMA; arrangements and department names can vary by state. ## 2. Central-level components and their roles | Component | Role in flood management | | --- | --- | | National Disaster Management Authority (NDMA) | Provides disaster-management policy and flood-risk guidelines; supports preparedness, coordination and risk reduction across agencies. | | Central Water Commission (CWC) | Observes river levels and flows, issues flood forecasts and gives technical advice/appraisal for flood-management schemes. Its forecasts help states decide when to warn and evacuate. | | Ganga Flood Control Commission (GFCC) | Prepares and coordinates flood-management planning for the Ganga basin; appraises and monitors relevant schemes so measures in one part of the basin account for other affected areas. | | Brahmaputra Board | Develops basin plans and investigations for flood control, bank erosion and drainage in the Brahmaputra and Barak systems and its assigned region. | | Farakka Barrage Project | Operates and maintains the barrage and associated works and undertakes riverbank/anti-erosion protection within its assigned area. This is a regional project role, not control of all Indian rivers. | ## 3. State-level components and local implementation | Component | Role in flood management | | --- | --- | | State Water Resources / Irrigation Department | Surveys local problems, prepares and executes flood-control and drainage schemes, and maintains works such as embankments and channels. | | State Flood Control Board | Sets or reviews state flood-management priorities and coordinates proposals and responsible departments under the state arrangement. | | State Technical Advisory Committee | Examines engineering proposals and their technical soundness before projects progress through the applicable approval process. | | State Disaster Management Cell / SDMA | Coordinates preparedness, warnings, resources and emergency response with state departments and districts. | | District administration and local authorities | Communicate actionable warnings, manage evacuation and shelters, maintain local services and report damage and resource needs. | **Example of the connection:** CWC forecasts a rising river; the state department and district administration assess exposed areas, check protection works and communicate evacuation instructions. A basin-planning body supports longer-term schemes, while the district manages local action. ## 4. How river interlinking may help, and its limits 1. **Possible diversion.** A suitably designed transfer can divert part of a high flow to a basin with spare capacity. The receiving basin must not itself be flooded. 2. **Storage and timing.** Reservoirs and detention associated with a scheme can hold some inflow and release it later. Benefits depend on available storage and forecasts, not merely the existence of a canal. 3. **Coordinated basin operation.** Operating rules, monitoring and communication can reduce poorly timed releases and support balanced water use. 4. **Limits and safeguards.** Conveyance capacity, extreme rainfall, ecological effects, sediment, social impacts and downstream risk require assessment. A transfer can shift risk rather than remove it. 5. **Mountain flash-flood limitation.** Short, intense rainfall, debris flows and slope failures such as those in Uttarakhand require local and basin risk measures. It is not established that river interlinking would have prevented the 2013 disaster. Organisation list: supplied M2 PPT, pp. 101–102. Role details: [Ministry of Jal Shakti on flood management](https://www.pib.gov.in/PressReleasePage.aspx?PRID=1947573); [Farakka Barrage Project functions](https://fbp.gov.in/function.html). #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q6A · Describe in detail, How GIS can help in Hazard Mapping for Droughts citing relevant e… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q6a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6A. Describe in detail, How GIS can help in Hazard Mapping for Droughts citing relevant examples [10 marks] #### Answer GIS links information to location, allowing drought indicators and affected people to be analysed together. Remote sensing supplies repeated observations; field verification is still needed. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Combine hazard indicators, exposure and resources to support decisions. 1. **Map rainfall deficits.** Compare rainfall with the local long-term pattern and map persistent deficits. For example, identify districts with deficient seasonal rainfall rather than applying one national rainfall threshold. 2. **Observe soil and vegetation.** Use soil-moisture information and vegetation indicators to locate crop stress. Ground observations help separate drought stress from disease, land-use change or poor data. 3. **Map available water.** Locate reservoirs, wells, streams and supply systems and track their condition. Overlay settlements to identify people far from reliable drinking-water sources. 4. **Assess vulnerability.** Combine rain-fed cultivation, livestock, poverty and access data with hazard indicators. Two equally dry areas can need different support because livelihood and service conditions differ. 5. **Prioritise and monitor action.** Select recharge, supply and livelihood interventions and map their progress. For example, direct emergency water to poorly served settlements while planning long-term watershed work. 6. **Communicate limitations.** Show data dates, uncertainty and update schedules. A map supports judgement; it does not automatically prove a village has water or that an individual household received relief. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q6B · Elaborate in detail the concept of Cordon-Off Zone. Also Draft a typical Cordon-Off Z… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q6b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6B. Elaborate in detail the concept of Cordon-Off Zone. Also Draft a typical Cordon-Off Zone to be adopted for the Tsunami Disaster Management [10 marks] #### Answer A **cordon** is a controlled boundary used to keep people away from danger and organise safe access. Its location depends on the actual hazard, changing conditions, terrain and operations; it is not a fixed-radius circle for every event. Swipe across the diagram to read its labels ↔ ![A safe cordon follows the hazard, not a fixed circle](https://deep-learning-study-room.vercel.app/dm/fig/cordon.14f06142d3.svg) Diagram: A safe cordon follows the hazard, not a fixed circle. Labels: A safe cordon follows the hazard, not a fixed circle | A safe cordon follows the hazard, not a fixed circle | Sea / water | Restricted | hazard area | Authorised | teams only | Controlled access | Check entry; maintain rescue routes. | Safe reception / assembly | Outside assessed danger; accessible shelter, | headcounts and coordination. | Evacuate to safe ground → | Command levels (gold/silver/bronze) describe roles, not universal cordon distances. For a tsunami or coastal flood, the hazard boundary follows inundation risk. Safe reception and command are inland or on safe high ground. 1. **Inner restricted area.** The inundated or otherwise dangerous area is restricted to authorised, appropriately equipped teams. Control entry and exit and keep untrained people away from moving water, debris, unstable buildings and electrical hazards. 2. **Controlled support area.** Place access control, team briefing, equipment and appropriate casualty transfer at a safe boundary. Maintain rescue routes and prevent crowds from obstructing operations. Move this area if conditions change. 3. **Safe outer area.** Locate assembly, public information, relief reception and coordination outside the hazard. Keep access available for emergency vehicles and account for evacuees. 4. **Command and review.** Bronze, silver and gold commonly describe operational, tactical and strategic command responsibilities. The lecture illustrates them as zones; they do not define universal physical distances. Review boundaries after updated forecasts, damage reports or an official all-clear. **Tsunami application:** close access to beaches and low-lying inundation routes, move people inland/uphill to designated safe areas, permit only controlled rescue access and keep the exclusion in place while further waves remain possible. A tsunami can arrive as several waves; the first is not necessarily the largest. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q7A · Explain in brief 5 key causes of Forest Fires and elaborate the any 5 immediate respo… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q7a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7A. Explain in brief 5 key causes of Forest Fires and elaborate the any 5 immediate response measures that can be adopted for control of Forest fires and extinguishing the forest fires [10 marks] #### Answer ## Five causes 1. **Lightning.** A strike can ignite sufficiently dry vegetation, especially when little rain reaches the ground. 2. **Unattended flames.** Careless campfires, discarded smoking materials or other open flames can ignite litter. 3. **Escaped burning.** Agricultural or debris burning can spread into nearby forest when control fails. 4. **Deliberate ignition.** Arson can start a fire; motives and responsibility require investigation rather than assumption. 5. **Equipment or electrical faults.** Sparks and damaged power infrastructure can ignite dry fuel. Heat, drought and wind make fuels drier and spread faster; they are not always the ignition source themselves. ## Five immediate response measures 1. **Detect, report and assess.** Report the location, fire direction, weather, access and people at risk. Authorities assess fuel, terrain and expected spread. 2. **Warn and evacuate.** Issue clear route and shelter instructions, assist vulnerable residents and close unsafe roads. Avoid sending people into smoke or the expected fire path. 3. **Establish safe command and access.** Coordinate fire and forest services, protect responders and maintain communication, escape routes and safety zones. 4. **Contain and suppress professionally.** Trained crews use tactics and equipment suitable for the fire, such as controlled suppression and prepared containment lines. Prescribed burning or back-burning is specialist work, never an instruction for the public. 5. **Prevent re-ignition and meet urgent needs.** Maintain professional patrols for hotspots and re-ignition, keep unsafe areas closed, and arrange urgent medical care, safe water and temporary shelter for affected people. Long-term forest restoration belongs to recovery rather than this immediate-response list. #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. --- ## TEE · Q7B · You are appointed as a consultant by an industry for recommending preparedness strate… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-12-10--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-12-10/q7b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7B. You are appointed as a consultant by an industry for recommending preparedness strategies for Gas Leaks. Also elaborate any 6 strategies in brief that you shall recommend and justify the same. [10 marks] #### Answer 1. **Detect and identify hazards.** Inventory chemicals, assess credible leak scenarios and install suitable detectors and alarms. Knowing what can leak determines the required warning and response. 2. **Maintain and audit equipment.** Inspect pipelines, valves, vessels and interlocks; investigate defects and follow safe operating procedures. Prevention reduces the chance of a leak rather than only treating its consequences. 3. **Prepare on-site and off-site plans.** Map potential affected areas and coordinate with authorities, hospitals and neighbouring communities. Specify incident command, isolation procedures, communication and resource requests. 4. **Plan protective action.** Pre-identify safe assembly locations, alternate routes and shelter arrangements based on the chemical and official advice. A gas release may require evacuation or shelter-in-place; one direction or action is not safe for every chemical. 5. **Train and rehearse.** Teach workers to recognise alarms, report incidents and follow their assigned roles. Practise communication, accountability and coordination without releasing hazardous material. 6. **Equip and communicate.** Provide suitable PPE and specialised response resources for trained teams; maintain backup communication. Inform communities clearly and arrange medical support while preventing untrained rescue entry. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. --- ## TEE · Q1A · Discuss in detail the 4 key causes of Global Climate Extremes citing relevant example… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q1a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1A. Discuss in detail the 4 key causes of Global Climate Extremes citing relevant examples [5 marks] #### Answer 1. **Anthropogenic greenhouse warming.** A warmer climate increases many heat extremes and changes the moisture available for heavy rain. For example, a higher temperature baseline makes an unusually hot period more likely to exceed a harmful heat threshold. This is a mechanism example, not attribution of a particular heat wave to one cause. 2. **Ocean and atmospheric variability.** Patterns such as El Niño redistribute heat and influence atmospheric circulation. For example, El Niño can contribute to deficient rainfall in some regions and heavy rainfall in others; it does not produce the same weather everywhere or guarantee an Indian drought. 3. **Land-use change.** Deforestation and sealed urban surfaces can alter local heat and runoff. For example, replacing vegetation with dark paving reduces shade and evaporative cooling, worsening local heat exposure. This local influence should not be confused with the global greenhouse driver. 4. **Persistent weather and local feedbacks.** Long-lived circulation patterns and feedbacks can sustain extremes. For example, a persistent high-pressure pattern can suppress rain and maintain heat; drying soil then reduces evaporative cooling and amplifies the hot conditions. #### Illustrative application · A city during a heat wave Outdoor workers, older adults and poorly ventilated homes may face different levels of risk during the same hot period. Heat warnings, access to cooling and adjusted work arrangements address vulnerability and exposure; they do not change the weather event itself. --- ## TEE · Q1B · The city council, of a city is facing problem of consequent River Floods during monso… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q1b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1B. The city council, of a city is facing problem of consequent River Floods during monsoon. In past decade the city has developed from Tier -II city to Tier – I city. What would be your suggestion for preparedness measures that the council can adopted to reduce the vulnerability and risk of the disaster. Elaborate your suggestion (any 4) in brief. [5 marks] #### Answer 1. **Map changing exposure.** Update floodplain, settlement and drainage maps as the city expands; identify critical facilities and people needing support. 2. **Maintain and inspect services.** Remove drainage blockages before the monsoon, inspect culverts and organise emergency maintenance teams. 3. **Set warning and action triggers.** Link rainfall and river forecasts to local alerts, road closures and evacuation decisions with named responsible officers. 4. **Prepare accessible evacuation and relief.** Mark alternate routes, ready shelters and transport and practise coordinated action. These measures reduce vulnerability even when heavy rainfall cannot be prevented. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q1C · Describe in detail citing any 3 relevant examples, how Training and Drills create awa… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q1c Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1C. Describe in detail citing any 3 relevant examples, how Training and Drills create awareness about Disaster Response. [5 marks] #### Answer 1. **Earthquake drill.** Participants rehearse Drop, Cover and Hold On, followed by safe evacuation when shaking stops and conditions permit. This makes the distinction between protection during shaking and later movement clear. 2. **Fire drill.** Occupants recognise the alarm, use designated exits and report to the assembly point. Wardens practise headcounts and identify blocked routes. 3. **Cyclone evacuation drill.** Residents practise receiving warnings, using transport and reaching designated shelters, including assisted evacuation. The drill turns a forecast into a rehearsed community action. Debriefing explains why each action matters and corrects errors before a real emergency. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q1D · Describe the key details (5 points) in brief for the post-disaster response by NDMA i… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q1d Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1D. Describe the key details (5 points) in brief for the post-disaster response by NDMA in case of “Nisarg Cyclone” [5 marks] #### Answer Cyclone Nisarga affected Maharashtra on 3 June 2020. NDMA has a strategic/coordinating role; state and district authorities, NDRF and other services carry out field operations. The following five post-impact functions should be attributed to this coordinated system, not all described as personally executed by NDMA. 1. **Coordinate needs assessment.** Collect verified information about affected settlements, damage, access and urgent requirements. 2. **Support rescue and urgent care.** Coordinate specialist response, medical support and movement of people from unsafe conditions. 3. **Organise basic relief.** Support safe shelters, water, food, sanitation and assistance for people with additional needs. 4. **Restore essential services.** Coordinate clearance and restoration of roads, electricity, communication and water supply through the responsible agencies. 5. **Support recovery and review.** Assess longer-term housing and livelihood needs and use lessons to improve future preparedness. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q2A · Discuss in detail with neat sketch any 3 types of seismic waves. Also explain the con… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q2a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2A. Discuss in detail with neat sketch any 3 types of seismic waves. Also explain the concept of cordon-off zone and draft typical cordon-off zone for each type of seismic waves. [10 marks] #### Answer **Definition.** Seismic waves are disturbances carrying earthquake energy. Body waves travel through the Earth; surface waves propagate along its surface. Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. Compare the direction of energy travel with the local movement of ground particles. | Wave | Particle movement | Travel / key point | | --- | --- | --- | | P: primary | Compression and expansion parallel to travel direction. | Fastest body wave; travels through solids and fluids. | | S: secondary | Shearing perpendicular to travel direction. | Slower than P; cannot propagate through liquids as shear waves. | | Love | Horizontal side-to-side surface motion. | Surface wave; produces strong lateral shaking. | | Rayleigh | Rolling, approximately elliptical motion in a vertical plane. | Surface wave with vertical and horizontal ground movement. | “Direction of travel” means where wave energy moves. “Particle movement” means how a small part of the ground moves locally. A particle need not travel all the way from the fault to your city. Do not list Love waves as body waves. ## How shaking is recorded A **seismometer** senses ground movement. A **seismograph** is the sensing-and-recording system; a **seismogram** is its record. A classical instrument uses inertia: the supporting ground moves relative to a suspended mass. Modern electronic instruments record a time series. Sensor, recorder and timing reference are the three basic components. ## Why P–S arrival separation is useful P waves arrive first because they travel faster. The P–S time gap generally increases with source distance. Records from several stations constrain earthquake location. One station alone does not uniquely locate an epicentre; real location calculations use travel-time models. A **cordon** is a controlled boundary separating an assessed danger area from safe public access. After an earthquake it follows damage and secondary hazards, not the distance travelled by a particular wave. Swipe across the diagram to read its labels ↔ ![Earthquake damage: a hazard-based cordon](https://deep-learning-study-room.vercel.app/dm/fig/quake-cordon.33e92aab0d.svg) Diagram: Earthquake damage: a hazard-based cordon. Labels: Earthquake damage: a hazard-based cordon | Earthquake damage: a hazard-based cordon | Restricted damage area | Unstable building / debris | Controlled entry | Authorised rescue teams; structural | assessment and safe access. | Safe assembly / coordination | Outside assessed collapse and | secondary-hazard zones. | Review aftershocks, adjacent structures, utilities and new damage. | No separate fixed-radius cordon exists for P, S or surface waves. Use the damaged building and secondary hazards to set the boundary. This is one typical earthquake-response sketch, not a separate zone for each wave. 1. **Restrict the dangerous area.** Keep the public away from unstable buildings, falling debris, damaged utilities and possible collapse zones. Specialist assessment guides the boundary. 2. **Control rescue access.** Authorised and properly equipped teams enter through managed access points. Maintain a clear route for rescue vehicles and casualty transfer. 3. **Provide safe outer coordination.** Place assembly, information, medical support and command outside the assessed danger. Account for evacuees and keep emergency routes unobstructed. 4. **Review the boundary.** Aftershocks and further structural or utility failures can change the danger. Update cordons and communicate any movement or all-clear through responsible authorities. The question’s request for a different cordon for each seismic wave is scientifically misleading. P, S and surface waves are forms of propagating energy; they do not define standard separate operational cordon radii. Explain this distinction, then draw the hazard-based earthquake cordon shown above. #### Illustrative application · Reading two arrivals A station records a P arrival before an S arrival because P waves travel faster. The growing arrival-time gap with distance can help locate the source using travel-time information. A gap alone, without an appropriate velocity model, is not a universal kilometre conversion. --- ## TEE · Q2B · Explain in detail any 5 the preparedness and mitigation measures adopted for of Droug… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q2b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2B. Explain in detail any 5 the preparedness and mitigation measures adopted for of Droughts Disaster Management [10 marks] #### Answer ## Five measures, with mitigation and preparedness distinguished Mitigation reduces future losses; preparedness makes people and services ready to act. The paper asks for five measures, while its synoptic wording refers to ten pointers. The five paired areas below cover both aspects without changing the printed question or marks. | Area | Mitigation — reduce the underlying loss | Preparedness — be ready before severe shortage | | --- | --- | --- | | Water storage and recharge | Build and maintain suitable rainwater harvesting, recharge and watershed works after checking local geology. Example: a maintained village harvesting system captures part of the monsoon runoff. | Inspect existing storage before the dry season and list usable water sources. Example: verify tank capacity and repair leaks before supplies decline. | | Water-use efficiency | Reduce avoidable losses through leak repair and appropriate irrigation systems. Example: suitable drip irrigation and crop-stage scheduling can reduce applied water needs. | Agree demand-management triggers and priority uses. Example: plan restrictions on nonessential use while protecting drinking water. | | Agricultural resilience | Choose locally suitable less water-intensive crops and diversify livelihoods. Example: a farm reduces dependence on a single water-demanding crop. | Prepare crop advisories, contingency seed and fodder plans. Example: adjust sowing advice when the seasonal rainfall outlook changes. | | Catchment and resource management | Protect soil cover, manage extraction and conserve groundwater according to a water budget. Example: prevent over-pumping from cancelling the gains from recharge. | Monitor rainfall, soil moisture, reservoir storage and groundwater; define alert thresholds. Example: an early storage warning activates the agreed village plan. | | Reduce social vulnerability | Strengthen safe regular drinking-water access and livelihood resilience for vulnerable households. Example: a reliable maintained supply reduces dependence on costly emergency purchases. | Pre-arrange safe emergency supply, transport, health coordination and support for people and livestock. Example: identify delivery points and responsible teams before shortages become acute. | Monitoring alone does not create water, and tankers are emergency support rather than a permanent substitute for sustainable management. Measures must suit local rainfall, geology, land use and community needs. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q3A · State and elaborate in detail 4 Perspectives of Disaster Management, citing suitable … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q3a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3A. State and elaborate in detail 4 Perspectives of Disaster Management, citing suitable examples for each of the perspectives. [10 marks] #### Answer **Definition.** A disaster can be studied through physical events, social structures, economic consequences and governance. Each perspective highlights a different reason for the observed losses. | Perspective | What it asks | Example | | --- | --- | --- | | General / hazard-centred | What happened, how intense was it and what immediate response is required? | Study the earthquake source, shaking and rescue needs. | | Socio-cultural | How do social roles, inequality, trust and local knowledge shape losses and recovery? | Warnings that exclude a language group may fail that community. | | Economic | What are direct losses, interrupted livelihoods and long-term development effects? | A damaged shop loses both assets and future business income. | | Political / governance | How do rules, enforcement, representation and coordination shape risk? | Permission for unsafe development and weak inspections can increase losses. | ## Classify impacts clearly **Physical** impacts include structural and lifeline damage. **Social** impacts include displacement, health effects, education disruption and trauma. **Economic** impacts include repair costs, production losses and livelihood disruption. **Ecological** impacts include habitat damage, erosion and contamination. The same event can create all four. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q3B · Explain the significance of “METHANE” in reporting an Incident. Also explain in brief… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q3b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3B. Explain the significance of “METHANE” in reporting an Incident. Also explain in brief 3 key objectives for training drills for earthquakes. [10 marks] #### Answer **Definition.** Structured incident reporting gives responders a common picture of an emergency. METHANE is a widely used multi-agency reporting mnemonic that appears in the supplied archive’s TEE questions. | Letter | Information to report | | --- | --- | | M | Major incident: declared or not; do not invent a declaration. | | E | Exact location: identifiable site and geographic details. | | T | Type of incident. | | H | Hazards present or developing. | | A | Access: safe entry and exit routes, including blockages. | | N | Number and condition of casualties; label estimates and unknowns. | | E | Emergency services present and required. | The acronym is not a chemistry question about methane gas. Send a short verified initial report, distinguish observations from estimates, and update as information changes. Exact procedures follow the relevant response organisation; this mnemonic is included as an archival examination application. ## Example report: hypothetical flood incident Major incident status: awaiting confirmation. Location: east-bank bridge approach, Ward 4. Type: river inundation. Hazards: fast water and damaged power line. Access: west approach closed; north road currently confirmed usable. Casualties: three people reported stranded; injury status unknown. Services: local police on scene; authorised rescue and utility support requested. This is an illustration, not a report of a real event. ## Emergency management expert: role by phase 1. Assess hazards and vulnerability and translate findings into plans. 2. Define responsibilities and coordinate agencies, communities and resources. 3. Train personnel, organise safe drills and improve weak procedures. 4. During response, support verified information, priorities and resource allocation. 5. During recovery, assess needs, restore systems, plan resilient reconstruction and review lessons. ## Worked incident report: illustrative details | Field | Example report | | --- | --- | | M | Major incident declared by the authorised incident commander. | | E | Example: Riverside School, east gate, mapped grid reference shared with control. | | T | Flooding with people stranded. | | H | Fast water, submerged electrical equipment and unstable walls. | | A | Use the northern approach; southern bridge reported closed. Confirm route status. | | N | Twenty people reported stranded; injuries not yet confirmed. | | E | Police and fire teams on scene; request water rescue and medical support. | Update time-stamped information as it is verified. METHANE is an acronym for structured reporting here, not the chemical methane gas. ## Three earthquake-drill objectives 1. **Protect during shaking.** Practise Drop, Cover and Hold On. 2. **Evacuate and account safely.** Use safe routes after shaking when conditions permit and conduct headcounts. 3. **Test coordination.** Check alarms, roles, assistance and communication; correct observed gaps. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q4A · Elaborate in detail the 4 key causes of “Uttarakhand Floods”. Also elaborate in brief… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q4a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4A. Elaborate in detail the 4 key causes of “Uttarakhand Floods”. Also elaborate in brief how inter-linking of rivers could have played a significant role. [10 marks] #### Answer ## Four interacting causes and risk factors 1. **Extreme rainfall.** Intense, sustained rainfall produced rapid runoff and high river flows. 2. **Steep and fragile terrain.** Steep slopes, erodible material and narrow valleys encouraged landslides, debris movement and fast flows. 3. **River and debris processes.** Sediment, debris and channel changes increased destructive force and could obstruct or redirect flow; local lake-related processes affected the Kedarnath area. 4. **Exposure and vulnerable development.** Settlements, roads and pilgrimage activity in hazardous places increased losses and complicated rescue when links failed. ## River interlinking: conditional role 1. **Possible diversion.** A suitably designed transfer can divert part of a high flow to a basin with spare capacity. The receiving basin must not itself be flooded. 2. **Storage and timing.** Reservoirs and detention associated with a scheme can hold some inflow and release it later. Benefits depend on available storage and forecasts, not merely the existence of a canal. 3. **Coordinated basin operation.** Operating rules, monitoring and communication can reduce poorly timed releases and support balanced water use. 4. **Limits and safeguards.** Conveyance capacity, extreme rainfall, ecological effects, sediment, social impacts and downstream risk require assessment. A transfer can shift risk rather than remove it. 5. **Mountain flash-flood limitation.** Short, intense rainfall, debris flows and slope failures such as those in Uttarakhand require local and basin risk measures. It is not established that river interlinking would have prevented the 2013 disaster. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q4B · Discuss in detail 5 types of Hazards. Also cite typical Disaster caused by each of th… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q4b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4B. Discuss in detail 5 types of Hazards. Also cite typical Disaster caused by each of the hazard. [10 marks] #### Answer | Hazard group | Explanation | Typical disaster | | --- | --- | --- | | Geological | Processes of the solid Earth, such as fault rupture or slope failure. | An earthquake or landslide disaster. | | Hydrometeorological | Water and weather processes such as intense rain, river flow or cyclone winds. | River flooding or a cyclone disaster. | | Biological | Pathogens or biological agents affecting populations. | An epidemic. | | Technological | Failures or hazardous releases involving industrial or engineered systems. | Bhopal industrial gas disaster. | | Environmental | Degradation or pollution that harms ecosystems and can increase other risks. | Severe toxic contamination affecting water, livelihoods and health. | Categories can overlap and trigger cascading impacts. For example, an earthquake is geological, but a resulting industrial release is a secondary technological hazard. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q5A · Describe in brief the 10 Do’s and Don’ts for response to Flash Floods due to cloud bu… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q5a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5A. Describe in brief the 10 Do’s and Don’ts for response to Flash Floods due to cloud burst [10 marks] #### Answer 1. **Follow official alerts.** Act on a flash-flood warning promptly; short lead time makes delay dangerous. 2. **Move to designated higher ground.** Use a known safe route away from channels and depressions. 3. **Avoid flowing water.** Do not walk or swim through floodwater; depth, speed and hidden hazards are difficult to judge. 4. **Do not drive through flooding.** Turn away from flooded roads and underpasses; a vehicle is not reliable protection. 5. **Keep away from electricity.** Avoid wires and flooded electrical installations; only trained personnel should isolate unsafe systems. 6. **Assist without entering danger.** Help children and people needing support along safe routes, and report stranded people to rescue services. 7. **Carry essentials if safe.** Take medicines, identification, communication and necessary supplies without delaying escape. 8. **Avoid banks and damaged structures.** Eroded edges, bridges and unstable slopes can fail suddenly. 9. **Use verified information.** Share accurate location and needs; avoid rumours and unverified routes. 10. **Return only after clearance.** Further rain, contamination and damaged services can remain dangerous after water recedes. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q5B · With a neat sketch explain in detail Disaster Scale. Considering Cyclone as Disaster … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q5b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5B. With a neat sketch explain in detail Disaster Scale. Considering Cyclone as Disaster Elaborate explain in brief level of Disaster Scale [10 marks] #### Answer **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q6A · Explain in detail how GIS can prove to be an efficient tool for Tsunami Disaster Mana… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q6a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6A. Explain in detail how GIS can prove to be an efficient tool for Tsunami Disaster Management for 4 phases of Disaster Relief [10 marks] #### Answer For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q6B · Explain in detail the concept of “Hazard Mapping”. Also elaborate in detail its signi… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q6b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6B. Explain in detail the concept of “Hazard Mapping”. Also elaborate in detail its significance for its application in Disaster Preparedness considering any 2 types of Disasters. [10 marks] #### Answer **Definition.** Risk assessment identifies hazards and evaluates exposure, vulnerability and capacity to understand possible losses and priorities. Risk mapping represents that information geographically. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Hazard information combined with exposed assets and vulnerability supports risk-based decisions. 1. **Identify risk:** determine what can happen, where and to whom. For a flood, gather past inundation, low ground, river and settlement data. 2. **Assess risk:** examine likelihood, depth/velocity, people and assets, construction and coping capacity. Rank areas by potential harm. 3. **Communicate risk:** provide understandable maps, warnings and explanations to planners, responders and residents. Include uncertainty and local accessibility needs. 4. **Mitigate risk:** apply zoning, drainage improvements, shelters, evacuation and training; update the assessment after changes. ## Analysis and assessment | Disaster analysis | Damage / needs assessment | | --- | --- | | Explains why and how an event produced losses. | Estimates what has been damaged and what assistance is needed. | | Investigates mechanisms, vulnerabilities and failures. | Measures affected people, services, losses and recovery requirements. | | Uses event data, models and causal investigation. | Uses surveys, inspections, inventories and field reports. | | Supports long-term prevention and improved planning. | Supports relief allocation and recovery priorities. | This comparison concerns **post-disaster damage/needs assessment**. Assessment is not restricted to after a disaster: pre-event risk assessments are essential too. Neither word guarantees greater accuracy by itself. ## Two applications **Flood:** overlay predicted inundation, settlements and shelters to select safe routes and prepare assisted evacuation. **Landslide:** overlay slope susceptibility, roads and settlements to identify closures, monitoring points and alternative access. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q7A · Explain in detail Cause, Characteristics and Mitigation measures for “Topple” type of… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q7a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7A. Explain in detail Cause, Characteristics and Mitigation measures for “Topple” type of Landslide. [10 marks] #### Answer A **topple** is the forward rotation of a rock or soil mass out of a slope about a pivot near its base. It differs from a slide, in which a mass moves along a rupture surface. Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. The right-hand sketch shows a block rotating forward: a topple. ## Causes and characteristics 1. **Fractured structure.** Steeply jointed or layered rock can form columns or blocks with limited lateral support. 2. **Loss of support.** Erosion or excavation at the toe can remove resistance and allow forward rotation. 3. **External triggers.** Water pressure, weathering, freeze-thaw where applicable or earthquake shaking can destabilise blocks. 4. **Visible behaviour.** Leaning blocks, opening joints and detached fragments may indicate instability. Movement may involve individual blocks or a larger interacting mass. ## Mitigation 1. **Investigate and restrict exposure.** Map unstable rock and keep buildings, parking and people away from the potential fall/runout zone. 2. **Improve drainage.** Control infiltration and pressure through professionally designed drainage. 3. **Stabilise or remove hazardous material.** Suitable anchors, bolts, support or controlled scaling require specialist design and trained execution. 4. **Protect and monitor.** Use designed catch structures where appropriate; monitor movement and close threatened routes when necessary. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q7B · Disaster Management Cell of a Coastal City is planning to implement Early Warning Sys… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-02-12--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-02-12/q7b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7B. Disaster Management Cell of a Coastal City is planning to implement Early Warning Systems. Suggest which Modes (any 3) of Early Warning you would recommend considering Coastal Flood, and Cyclone as Disaster Commonly faced by the city. Justify your suggestion in brief. [10 marks] #### Answer For coastal flood and cyclone risk, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q1A · Elaborate in detail the causes of earthquakes with a neat sketch Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q1a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1A. Elaborate in detail the causes of earthquakes with a neat sketch [5 marks] #### Answer **Definition.** An earthquake is ground shaking caused by a sudden release of stored energy in the Earth. Most destructive earthquakes result from sudden slip on a fault, sending out seismic waves. ## Build the idea one step at a time 1. The outer rigid Earth is divided into **tectonic plates**. Their slow relative movement loads rocks with stress. 2. A **fault** is a fracture or zone of fractures along which rock blocks can move. Friction can temporarily lock the blocks. 3. The rocks deform and store elastic energy. When stress exceeds the resistance to slip, the fault moves suddenly. This is the elastic-rebound explanation. 4. Energy travels outward as **seismic waves**. These cause shaking at the surface. The waves carry the released energy; they are not the original tectonic cause. Swipe across the diagram to read its labels ↔ ![Focus, epicentre and a slipping fault](https://deep-learning-study-room.vercel.app/dm/fig/earthquake.46adac0128.svg) Diagram: Focus, epicentre and a slipping fault. Labels: Focus, epicentre and a slipping fault | Focus, epicentre and a slipping fault | Fault plane | Epicentre: surface above focus | Focus: rupture begins within Earth | Surface | Waves spread from the source; shaking effects vary with local conditions. Focus is inside the Earth; epicentre is the surface point directly above it. Fault rupture can extend far beyond the starting point. | Word | Meaning | | --- | --- | | Focus / hypocentre | The point inside the Earth where rupture begins. | | Epicentre | The point on the surface vertically above the focus. | | Focal depth | Vertical distance from the surface to the focus. | | Foreshock / mainshock / aftershock | Smaller preceding event, largest event in a sequence, and subsequent events; “foreshock” is usually identified retrospectively. | Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Convergent: move together. Divergent: move apart. Transform: slide past. Most earthquakes result from sudden fault slip releasing stored strain. Volcanic processes, collapse and certain human activities can also generate earthquakes; seismic waves are the released energy travelling outward, not the underlying tectonic cause. ## Three plate movements that build stress 1. **Convergence.** Plates move together, causing compression, subduction or collision. Locked faults can release stored energy suddenly. 2. **Divergence.** Plates separate and the crust extends. Faulting associated with extension can generate earthquakes. 3. **Transform motion.** Plates slide past one another. Friction can lock parts of a fault until stress overcomes resistance and slip occurs. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q1B · State and explain in detail any 4 mitigation measures that can be adopted in case of … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q1b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1B. State and explain in detail any 4 mitigation measures that can be adopted in case of landslides due to heavy rainfall in an area. [5 marks] #### Answer 1. **Control water.** Maintain surface drains and, where designed, subsurface drainage. Diverting water safely reduces saturation; do not discharge it onto another unstable slope. 2. **Stabilise the slope.** Qualified engineers can use retaining structures, anchors, soil nails or regrading after investigation. The design must suit the failure mechanism and include drainage. 3. **Protect cover and regulate land use.** Restore suitable vegetation, limit quarrying and avoid unsafe toe cutting or building on unstable ground. Vegetation helps some shallow failures but cannot stop every deep landslide. 4. **Map, monitor and prepare.** Use susceptibility maps, rainfall observations and movement indicators to prioritise closures and evacuation. Mark safe routes and train residents to report new cracks or tilting structures. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q1C · Draft a typical classification chain for the case study of Uttarakhand Forest Fires a… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q1c Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1C. Draft a typical classification chain for the case study of Uttarakhand Forest Fires and explain the same in detail [5 marks] #### Answer **Classification chain:** known ignition cause → forest/vegetation fire → physical heat and smoke → air, land/ecosystems and social impacts → local or regional spread. For Uttarakhand forest fires, distinguish human ignition such as escaped burning from natural ignition such as lightning. Dry vegetation, heat and wind favour spread. Do not label every fire “natural” simply because it burns in a forest, or claim an exact ignition source without evidence. | Basis | Application | | --- | --- | | Occurrence | Human-induced where started by human action; natural where caused by lightning. | | Characteristic | Primarily physical fire/heat, with hazardous smoke. | | Affected component | Air quality, soil, vegetation, wildlife, property and livelihoods. | | Legal/administrative reach | A local fire may spread across several districts into a regional/state event; response must coordinate affected jurisdictions. | #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. --- ## TEE · Q1D · Describe in detail the need and objective of awareness generation about disaster prep… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q1d Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1D. Describe in detail the need and objective of awareness generation about disaster preparedness. [5 marks] #### Answer Awareness generation helps people recognise their local hazards, understand warnings and know how to obtain assistance. It is needed because unfamiliar terms, rumours and inaccessible messages can prevent action even when a technically accurate forecast exists. 1. **Explain local risk.** Use familiar places and examples so residents understand who may be affected and why. 2. **Teach protective action.** Show the warning signal, safe route, assembly point and essential preparations rather than giving only slogans. 3. **Include different audiences.** Use local languages, accessible formats and suitable times for children, workers, older people and visitors. 4. **Build trust and coordination.** Identify official information sources and encourage community participation, reporting and mutual support. 5. **Link awareness to practice.** Follow explanation with training and drills, collect feedback and correct gaps. Knowing a message is different from being able to act on it. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2A · Illustrate and explain in detail with neat sketch 3 types of waves for earthquakes. A… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q2a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2A. Illustrate and explain in detail with neat sketch 3 types of waves for earthquakes. Also state the 2 types of earthquakes on earthquake on basis of plate boundaries [10 marks] #### Answer **Definition.** Seismic waves are disturbances carrying earthquake energy. Body waves travel through the Earth; surface waves propagate along its surface. Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. Compare the direction of energy travel with the local movement of ground particles. | Wave | Particle movement | Travel / key point | | --- | --- | --- | | P: primary | Compression and expansion parallel to travel direction. | Fastest body wave; travels through solids and fluids. | | S: secondary | Shearing perpendicular to travel direction. | Slower than P; cannot propagate through liquids as shear waves. | | Love | Horizontal side-to-side surface motion. | Surface wave; produces strong lateral shaking. | | Rayleigh | Rolling, approximately elliptical motion in a vertical plane. | Surface wave with vertical and horizontal ground movement. | “Direction of travel” means where wave energy moves. “Particle movement” means how a small part of the ground moves locally. A particle need not travel all the way from the fault to your city. Do not list Love waves as body waves. ## How shaking is recorded A **seismometer** senses ground movement. A **seismograph** is the sensing-and-recording system; a **seismogram** is its record. A classical instrument uses inertia: the supporting ground moves relative to a suspended mass. Modern electronic instruments record a time series. Sensor, recorder and timing reference are the three basic components. ## Why P–S arrival separation is useful P waves arrive first because they travel faster. The P–S time gap generally increases with source distance. Records from several stations constrain earthquake location. One station alone does not uniquely locate an epicentre; real location calculations use travel-time models. ## Interplate and intraplate earthquakes **Interplate** earthquakes occur at plate boundaries. **Intraplate** earthquakes occur within a plate, commonly on reactivated faults. Boundary setting is different from classification by depth or by tectonic/volcanic origin. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q2B · Explain in detail the concept of Cordon-off Zone with a neat labelled sketch. Also el… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q2b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2B. Explain in detail the concept of Cordon-off Zone with a neat labelled sketch. Also elaborate its significance in Disaster Response considering Tsunami [10 marks] #### Answer A **cordon** is a controlled boundary used to keep people away from danger and organise safe access. Its location depends on the actual hazard, changing conditions, terrain and operations; it is not a fixed-radius circle for every event. Swipe across the diagram to read its labels ↔ ![A safe cordon follows the hazard, not a fixed circle](https://deep-learning-study-room.vercel.app/dm/fig/cordon.14f06142d3.svg) Diagram: A safe cordon follows the hazard, not a fixed circle. Labels: A safe cordon follows the hazard, not a fixed circle | A safe cordon follows the hazard, not a fixed circle | Sea / water | Restricted | hazard area | Authorised | teams only | Controlled access | Check entry; maintain rescue routes. | Safe reception / assembly | Outside assessed danger; accessible shelter, | headcounts and coordination. | Evacuate to safe ground → | Command levels (gold/silver/bronze) describe roles, not universal cordon distances. For a tsunami or coastal flood, the hazard boundary follows inundation risk. Safe reception and command are inland or on safe high ground. 1. **Inner restricted area.** The inundated or otherwise dangerous area is restricted to authorised, appropriately equipped teams. Control entry and exit and keep untrained people away from moving water, debris, unstable buildings and electrical hazards. 2. **Controlled support area.** Place access control, team briefing, equipment and appropriate casualty transfer at a safe boundary. Maintain rescue routes and prevent crowds from obstructing operations. Move this area if conditions change. 3. **Safe outer area.** Locate assembly, public information, relief reception and coordination outside the hazard. Keep access available for emergency vehicles and account for evacuees. 4. **Command and review.** Bronze, silver and gold commonly describe operational, tactical and strategic command responsibilities. The lecture illustrates them as zones; they do not define universal physical distances. Review boundaries after updated forecasts, damage reports or an official all-clear. **Tsunami application:** close access to beaches and low-lying inundation routes, move people inland/uphill to designated safe areas, permit only controlled rescue access and keep the exclusion in place while further waves remain possible. A tsunami can arrive as several waves; the first is not necessarily the largest. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q3A · Describe in detail citing relevant examples 5 mitigation measures that can be adopted… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q3a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3A. Describe in detail citing relevant examples 5 mitigation measures that can be adopted for River flood Disaster. [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Four complementary flood-risk measures](https://deep-learning-study-room.vercel.app/dm/fig/flood-measures.8571e23804.svg) Diagram: Four complementary flood-risk measures. Labels: Four complementary flood-risk measures | Four complementary flood-risk measures | 1 · Storage | Wetlands and detention hold water and reduce | a peak. | 2 · Drainage | Maintain flow paths, culverts and outfalls. | 3 · Land-use control | Keep vulnerable development outside mapped | floodways. | 4 · Warning and evacuation | Move people on safe routes while access | remains usable. | floodway | safe site | people | shelter Risk reduction combines storage, protected land use, maintained conveyance and safe evacuation. 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. 5. **Combine protection with warning and preparedness.** Appropriately designed embankments or levees protect selected areas, but can overtop or fail. Maintain them, issue actionable forecasts, mark escape routes and provide safe shelters for the remaining risk. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q3B · State and elaborate in detail the application of risk mapping for detection of flood … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q3b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3B. State and elaborate in detail the application of risk mapping for detection of flood prone areas. Explain in detail the 4 steps of Risk Mapping [10 marks] #### Answer **Definition.** Risk assessment identifies hazards and evaluates exposure, vulnerability and capacity to understand possible losses and priorities. Risk mapping represents that information geographically. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Hazard information combined with exposed assets and vulnerability supports risk-based decisions. 1. **Identify risk:** determine what can happen, where and to whom. For a flood, gather past inundation, low ground, river and settlement data. 2. **Assess risk:** examine likelihood, depth/velocity, people and assets, construction and coping capacity. Rank areas by potential harm. 3. **Communicate risk:** provide understandable maps, warnings and explanations to planners, responders and residents. Include uncertainty and local accessibility needs. 4. **Mitigate risk:** apply zoning, drainage improvements, shelters, evacuation and training; update the assessment after changes. ## Analysis and assessment | Disaster analysis | Damage / needs assessment | | --- | --- | | Explains why and how an event produced losses. | Estimates what has been damaged and what assistance is needed. | | Investigates mechanisms, vulnerabilities and failures. | Measures affected people, services, losses and recovery requirements. | | Uses event data, models and causal investigation. | Uses surveys, inspections, inventories and field reports. | | Supports long-term prevention and improved planning. | Supports relief allocation and recovery priorities. | This comparison concerns **post-disaster damage/needs assessment**. Assessment is not restricted to after a disaster: pre-event risk assessments are essential too. Neither word guarantees greater accuracy by itself. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q4A · Discuss in detail the concept of Assembly Point and Communication Plan in Drills. Als… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q4a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4A. Discuss in detail the concept of Assembly Point and Communication Plan in Drills. Also state any 8 key components of Preparedness Kit [10 marks] #### Answer ## Assembly point An assembly point is a pre-designated, safe and accessible place where evacuees gather and are accounted for. It must be away from the relevant hazard and should not block emergency access. Wardens conduct headcounts, report missing people and prevent unsafe re-entry; an alternate point is needed if the primary point becomes unsafe. ## Communication plan The plan states who issues the warning, what signal and message are used, how occupants and emergency services are contacted and how updates and headcounts are reported. It includes accessible messages, current contact lists and backup communication. During a drill, a separate instruction must identify a real emergency. ## Eight preparedness-kit components 1. **Safe drinking water.** Support essential hydration when supply is interrupted. 2. **Suitable ready-to-eat food.** Choose practical food compatible with household needs. 3. **Essential medicines.** Include prescribed medicines and necessary personal medical supplies. 4. **First-aid supplies.** Keep basic supplies and use them within the user’s training. 5. **Torch.** A torch with spare power is safer than an open flame around uncertain damage. 6. **Battery radio and phone power.** Receive official updates and maintain communication. 7. **Documents and contacts.** Protect copies of identification and essential contact information. 8. **Personal essentials.** Include hygiene items, weather protection and disability, infant or other individual needs. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q4B · Differentiate between Analysis and Assessment (4 pointers) of a Disaster. Consider th… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q4b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4B. Differentiate between Analysis and Assessment (4 pointers) of a Disaster. Consider the case study of Nisarg Cyclone and elaborate analysis and assessment for the same. [10 marks] #### Answer | Aspect | Analysis | Assessment | | --- | --- | --- | | Purpose | Explain causes, processes and relationships. | Judge the level of risk, damage, needs or available resources. | | Question | Why did the event produce these impacts? | How severe is the situation and what is required? | | Methods | Study hazard behaviour, exposure, failures and interactions. | Survey, estimate and prioritise using defined criteria. | | Use | Improve understanding, models and management choices. | Support decisions on preparedness, response and recovery. | Both can occur before or after a disaster. **Risk assessment** can be pre-event; **damage and needs assessment** is commonly post-event. They should not be defined simply as “analysis before, assessment after”. ## Nisarga example Analysis examines cyclone wind/rain, exposed settlements, roof weaknesses and service failures to explain impacts. Assessment estimates affected households, damage, shelter and water requirements and the status of roads and power. Together they support targeted relief and safer reconstruction; historical quantities must come from verified records. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q5A · The area faces Coastal Flash Floods frequently. Recommend any 4 mitigation measures t… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q5a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5A. The area faces Coastal Flash Floods frequently. Recommend any 4 mitigation measures that can be adopted for the same. Describe and justify your suggestion in detail with sketches. [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Coastal flood: four measures and the risk each reduces](https://deep-learning-study-room.vercel.app/dm/fig/coastal-four.57a97d3a0e.svg) Diagram: Coastal flood: four measures and the risk each reduces. Labels: Coastal flood: four measures and the risk each reduces | Coastal flood: four measures and the risk each reduces | 1 · Risk-informed land use | Keep new critical facilities outside mapped | surge / flood areas. | 2 · Drainage and protection | Maintain outfalls; use assessed engineered | protection where suitable. | 3 · Shelter and safe access | Provide accessible safe shelters and routes | outside the hazard. | 4 · Warning and evacuation | Send clear alerts and move people before | routes become unsafe. | flood zone | safe | water | safe route | official alert | act early | Transport + assistance + headcounts | Each measure reduces a different part of risk; none guarantees zero flooding. | Protection may overtop; drainage can back up when coastal water is high. Coastal flooding can combine rainfall, high tide, surge and blocked drainage. The four labelled panels match the four measures below. 1. **Risk-informed coastal land use.** Use surge and flood maps to control exposed development and locate critical infrastructure safely. Protect mangroves and appropriate coastal vegetation as part of a wider protection system, not a guaranteed barrier against every surge. 2. **Drainage and protective works.** Maintain drains and outfalls and use engineered embankments, sea walls or detention where justified by local studies. Consider overtopping, erosion and downstream effects; combine works with warning and evacuation. 3. **Shelters and evacuation access.** Provide accessible shelters outside surge and flood zones, linked by reliable routes. Practise transport, headcounts and support for people needing assistance so that shelter capacity becomes usable protection. 4. **Warning and last-mile communication.** Use official forecasts, clear action messages and several communication channels. A forecast must reach fishers, visitors and people without smartphones, with enough time and support to act. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q5B · With a neat sketch explain in detail Disaster Cycle. Also elaborate the same consider… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q5b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 This is the second question printed as Q5A in the source. It is displayed as Q5B here so the two parts remain distinguishable. ### Q5B. With a neat sketch explain in detail Disaster Cycle. Also elaborate the same considering Droughts as a disaster [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle A drought develops slowly, but all stages still apply. 1. **Prevention and mitigation.** Reduce avoidable vulnerability through watershed conservation, suitable cropping, efficient water use and sustainable groundwater management. These do not prevent every rainfall deficit. 2. **Preparedness.** Monitor rainfall, storage and crop stress; plan water priorities, advisories, supply contingencies and livelihood support. 3. **Response.** Provide safe drinking water and urgent livelihood, fodder or health support according to assessed need; manage scarce resources fairly. 4. **Recovery.** Restore productive capacity and livelihoods, repair water systems and improve future planning. Review whether reconstruction and new demand would recreate the same water stress. ## How the cycle connects in one village Before a deficient monsoon, the village improves storage and water-use efficiency: this is mitigation. When monitoring shows a deficit, authorities activate a prepared priority-supply plan: this is preparedness. During severe shortage, safe drinking-water supply and targeted livelihood assistance are response. After conditions improve, repairing sources and restoring livelihoods are recovery. Reviewing which households were excluded should change the next plan. Thus recovery feeds into better mitigation and preparedness rather than simply restoring the earlier vulnerability. In the six-stage lecture diagram, prevention and mitigation are shown separately, and rehabilitation/reconstruction are distinguished within recovery. The stages can overlap; an activity is classified by its purpose, not just its calendar date. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q6A · Describe the role of GIS in training and conducting drills considering any one type o… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q6a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6A. Describe the role of GIS in training and conducting drills considering any one type of natural disaster [10 marks] #### Answer Consider a river-flood evacuation drill. GIS helps convert a general plan into a realistic exercise for actual places. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. A drill uses a map of both the hazard and the people/resources affected. 1. **Construct a scenario.** Show likely flood extent and depth and identify settlements that would need evacuation. 2. **Map people and routes.** Locate schools, hospitals, people needing assistance, roads and bridges; identify bottlenecks and alternate routes. 3. **Select safe destinations.** Check shelter location, accessibility and capacity and avoid routes crossing the forecast flood zone. 4. **Allocate teams and resources.** Assign wardens, transport, first-aid points and communication responsibilities to mapped areas. 5. **Rehearse changing conditions.** During the exercise mark a simulated bridge closure and require teams to select a safe alternative using the shared map. 6. **Evaluate performance.** Record movement times, coverage and unresolved assistance needs; update maps and plans. A shorter evacuation time alone is not success if people were left behind. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q6B · “Media play a very significant role in Disaster Management” describe in detail with r… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q6b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6B. “Media play a very significant role in Disaster Management” describe in detail with relevant justification and examples the statement for 4 types of media commonly considered. [10 marks] #### Answer For disaster information across preparedness, response and recovery, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. 4. **Operational radio and verified digital updates.** Use two-way radio for field teams and control rooms, with official web/social updates for public information. Team reports help correct road closures and resource needs; verify updates before forwarding them. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q7A · Differentiate between the (any 5) dos and don’ts for disaster response for the cold w… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q7a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7A. Differentiate between the (any 5) dos and don’ts for disaster response for the cold wave and heat wave citing relevant examples [10 marks] #### Answer | Aspect | Heat-wave response | Cold-wave response | | --- | --- | --- | | Exposure | Use shade/cooling and reduce strenuous activity during extreme heat; do not remain in a hot parked vehicle. | Move to a warm, dry shelter; do not remain in wet clothes. | | Clothing | Wear suitable lightweight clothing and sun protection. | Use dry layers and protect the head, hands and feet. | | Hydration and food | Drink safe fluids and follow relevant medical advice; do not rely on alcohol. | Maintain food and fluids; do not assume alcohol safely warms the body. | | Protect others | Check on vulnerable people and never leave a child in a closed hot vehicle. | Check on isolated people and arrange blankets and night shelter. | | Warning signs and safe care | Serious confusion, collapse or severe heat illness needs urgent medical help. | Marked confusion, drowsiness or suspected hypothermia needs urgent medical help; avoid unsafe direct intense heating. | | Indoor equipment | Use cooling safely and plan for power loss. | Use safe ventilated heating; never use charcoal or a generator inside an enclosed room. | #### Illustrative application · A city during a heat wave Outdoor workers, older adults and poorly ventilated homes may face different levels of risk during the same hot period. Heat warnings, access to cooling and adjusted work arrangements address vulnerability and exposure; they do not change the weather event itself. --- ## TEE · Q7B · Enlist and Elaborate in detail (any 8) ethical principles to be adopted during the di… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-05-15/q7b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7B. Enlist and Elaborate in detail (any 8) ethical principles to be adopted during the disaster with relevant example [10 marks] #### Answer Ethics is needed because scarce resources, urgent decisions and disrupted normal safeguards can lead to exclusion, exploitation and unsafe actions. It provides standards for fair prioritisation, accountability, dignity and public trust. 1. **Humanitarian assistance.** Protect life and provide essentials according to need. For example, distribute safe drinking water to communities whose supply has failed. 2. **Information and participation.** Give accurate, accessible updates and involve affected people. Explain shelter locations in local languages and listen to residents about missing people. 3. **Responsible evacuation.** Use safe routes, transport and accessible shelters; explain the danger and preserve dignity. Any compulsory evacuation must follow lawful authority and necessity. 4. **Respect for dignity.** Protect privacy, sanitation and freedom from exploitation. Separate private changing and washing facilities reduce risks in crowded shelters. 5. **Respect for persons.** Treat survivors respectfully and protect their identity, culture and consent where possible. Do not publish identifiable distressing images merely for publicity. 6. **Assistance for those needing additional support.** Arrange assistance for children, older people, pregnant people and persons with disabilities according to actual needs. Do not separate dependants from carers unnecessarily. 7. **Protection of rescue workers.** Provide training, protective equipment, communication, safe deployment and rest. A fatigued, unprotected responder can become another casualty. 8. **Environmental and social restoration.** Control hazardous waste, protect water sources and restore family/community links. Safe debris disposal and family reunification prevent secondary harm. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q1A · Describe in detail types of Disasters on basis of legal boundaries. Also cite relevan… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q1a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1A. Describe in detail types of Disasters on basis of legal boundaries. Also cite relevant example for each type [5 marks] #### Answer **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · With neat sketch describe any 2 mitigation measures for developing coping capacity to… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q1b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1B. With neat sketch describe any 2 mitigation measures for developing coping capacity to create resilience against Tsunami [5 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Tsunami: displacement → propagation → inundation](https://deep-learning-study-room.vercel.app/dm/fig/tsunami.bc017e1e08.svg) Diagram: Tsunami: displacement → propagation → inundation. Labels: Tsunami: displacement → propagation → inundation | Tsunami: displacement → propagation → inundation | 1 · Seafloor displacement | 2 · Waves propagate | 3 · Move to designated | safe high ground | The tsunami can be a series of waves; do not return after the first wave. Monitoring must lead to rapid movement to designated safe ground. 1. **Warning linked to evacuation.** Combine tsunami monitoring and official alerts with signs, drills and accessible routes to safe high ground. Residents must also recognise natural warning signs when official lead time is too short. 2. **Reduce physical vulnerability.** Use risk-informed coastal siting, suitable resilient construction and protected lifelines. Designated safe shelters or vertical evacuation structures require engineering assessment; ordinary buildings are not automatically safe. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q1C · Explain in detail Early Warning System helped in reducing the impacts of Cyclone in C… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q1c Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1C. Explain in detail Early Warning System helped in reducing the impacts of Cyclone in Case of Nisarg Cyclone. Also elaborate in brief any two early warning system adopted for Nisarg Cyclone [5 marks] #### Answer Cyclone Nisarga made landfall near Alibag on 3 June 2020. Early warning connected observations and forecasts to protective action before landfall. Two documented parts of the warning system were: 1. **IMD cyclone monitoring and forecast-warning system.** Satellite observations and Doppler weather radars at Goa and Mumbai helped IMD track the cyclone. Forecasts and bulletins identified the expected landfall period and hazards from wind, rain and storm surge. This gave agencies a basis for readiness and evacuation decisions. 2. **Bulk-SMS warning dissemination to residents.** The Government of India’s 2 June 2020 preparedness release states that the Telecom Department’s bulk-SMS facility was being used to warn residents likely to be affected. It also records that evacuation was underway. This channel carried the forecast from agencies to people who needed to act. ## How warnings reduced exposure The same preparedness review directed completion of evacuation from low-lying areas in the cyclone path and return of fishers from the sea. Thus the practical chain was **monitor → forecast → communicate → evacuate / protect**. A forecast alone cannot prevent damage: clear instructions, transport, safe shelters and public cooperation are needed. Do not invent an exact number of lives saved. Sources: [IMD report on Nisarga, monitoring section](https://rsmcnewdelhi.imd.gov.in/uploads/report/26/26_f84c76_nisarga.pdf); [PIB, NCMC preparedness review, 2 June 2020](https://www.pib.gov.in/PressReleasePage.aspx?PRID=1628698&lang=2®=48). #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q1D · Discuss in detail role of Trainings and drills as a mitigation measure adopted for In… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q1d Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q1D. Discuss in detail role of Trainings and drills as a mitigation measure adopted for Industrial Gas Leaks. [5 marks] #### Answer Training and drills turn an industrial gas-leak plan into practised action. Five roles are: 1. **Recognise and report the hazard.** Teach workers the relevant detector/alarm signals, how to report a suspected release and which authorised team identifies the chemical. An unusual odour is not a safe universal detection method. 2. **Practise the correct protective action.** Rehearse evacuation or shelter-in-place according to the chemical-specific plan and official instructions. Use planned alternate routes and assistance arrangements; ordinary masks are not a universal gas protection system. 3. **Assign roles and account for people.** Train supervisors, wardens and control-room staff in notification, safe isolation by authorised personnel, headcounts and reporting missing workers. Visitors and contractors must be included. 4. **Coordinate specialist response.** Practise communication with fire/hazmat teams, district authorities and hospitals. Share the chemical identity, location, hazards and access information so responders select suitable protection and treatment. 5. **Find and correct weaknesses safely.** A simulated drill tests alarms, communication, routes and responsibilities. Debrief delays or confusion and repeat after corrections. Do not release hazardous gas or create real exposure for a drill. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2A · Describe in detail with neat sketch 3 types of boundaries for earthquakes. Also state… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q2a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2A. Describe in detail with neat sketch 3 types of boundaries for earthquakes. Also state the causes of earthquake [10 marks] #### Answer **Definition.** Earthquakes can be classified by their cause, position relative to plates and focal depth. These are different classification bases, so one event can belong to several categories at once. Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Three types of relative plate movement. Arrows show motion, not seismic waves. | Boundary | Movement | Typical process | | --- | --- | --- | | Convergent | Plates move towards one another. | Subduction or continental collision builds compressive stress. | | Divergent | Plates move apart. | Extension and faulting occur as new crust forms at spreading boundaries. | | Transform | Plates slide horizontally past one another. | Shear stress is released along strike-slip faults. | | Classification | Types and meaning | | --- | --- | | By plate position | Interplate: at a plate boundary. Intraplate: within a plate away from its boundary; old faults can reactivate. | | By cause | Tectonic movement; volcanic activity; collapse in cavities; induced events associated with activities such as mining or reservoir loading. | | By focal depth | Common seismological grouping: shallow 0–70 km, intermediate 70–300 km, deep 300–700 km. Boundary conventions may be inclusive on either side. | A shallow event can produce severe local shaking because its source is close to the surface, but depth alone does not determine damage. Magnitude, distance, soil, construction and preparedness also matter. Intraplate does not mean harmless: Kutch and the peninsular region have experienced damaging earthquakes. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q2B · Elaborate with neat sketches application of Cordon- off Zones for Coastal Floods Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q2b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q2B. Elaborate with neat sketches application of Cordon- off Zones for Coastal Floods [10 marks] #### Answer A **cordon** is a controlled boundary used to keep people away from danger and organise safe access. Its location depends on the actual hazard, changing conditions, terrain and operations; it is not a fixed-radius circle for every event. Swipe across the diagram to read its labels ↔ ![A safe cordon follows the hazard, not a fixed circle](https://deep-learning-study-room.vercel.app/dm/fig/cordon.14f06142d3.svg) Diagram: A safe cordon follows the hazard, not a fixed circle. Labels: A safe cordon follows the hazard, not a fixed circle | A safe cordon follows the hazard, not a fixed circle | Sea / water | Restricted | hazard area | Authorised | teams only | Controlled access | Check entry; maintain rescue routes. | Safe reception / assembly | Outside assessed danger; accessible shelter, | headcounts and coordination. | Evacuate to safe ground → | Command levels (gold/silver/bronze) describe roles, not universal cordon distances. For a tsunami or coastal flood, the hazard boundary follows inundation risk. Safe reception and command are inland or on safe high ground. 1. **Inner restricted area.** The inundated or otherwise dangerous area is restricted to authorised, appropriately equipped teams. Control entry and exit and keep untrained people away from moving water, debris, unstable buildings and electrical hazards. 2. **Controlled support area.** Place access control, team briefing, equipment and appropriate casualty transfer at a safe boundary. Maintain rescue routes and prevent crowds from obstructing operations. Move this area if conditions change. 3. **Safe outer area.** Locate assembly, public information, relief reception and coordination outside the hazard. Keep access available for emergency vehicles and account for evacuees. 4. **Command and review.** Bronze, silver and gold commonly describe operational, tactical and strategic command responsibilities. The lecture illustrates them as zones; they do not define universal physical distances. Review boundaries after updated forecasts, damage reports or an official all-clear. **Tsunami application:** close access to beaches and low-lying inundation routes, move people inland/uphill to designated safe areas, permit only controlled rescue access and keep the exclusion in place while further waves remain possible. A tsunami can arrive as several waves; the first is not necessarily the largest. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q3A · Describe in detail citing relevant examples 5 mitigation measures that can be adopted… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q3a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3A. Describe in detail citing relevant examples 5 mitigation measures that can be adopted for Droughts Disaster. [10 marks] #### Answer 1. **Conserve rainfall and restore watersheds.** Use suitable rainwater harvesting, contour measures and recharge work. Site-specific geology and maintenance determine whether water can be stored or recharge groundwater effectively. 2. **Use water efficiently.** Repair leaks, use appropriate irrigation scheduling and adopt efficient systems where suitable. Saving water at one point should be reflected in an overall water budget rather than expansion that cancels the saving. 3. **Plan crops and livelihoods.** Choose crops and sowing decisions suited to local water availability; diversify income where feasible. This reduces dependence on a single water-intensive crop or season. 4. **Monitor shortages and manage demand.** Track rainfall deficits, soil moisture, reservoir levels and groundwater. Prioritise drinking water, protect essential services and agree fair allocation before supplies become critical. 5. **Prepare community support.** Communicate advisories, arrange safe emergency drinking-water supply and fodder, and support vulnerable livelihoods. Emergency relief addresses immediate suffering while long-term measures reduce the next drought’s impacts. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q3B · Which 4 type of mode of communication you would have adopted for communication in cas… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q3b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q3B. Which 4 type of mode of communication you would have adopted for communication in case of Uttarakhand Forest Fires, and why. Elaborate in detail any 4 modes of communication in detail. [10 marks] #### Answer For Uttarakhand forest fires, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. 4. **Operational radio and verified digital updates.** Use two-way radio for field teams and control rooms, with official web/social updates for public information. Team reports help correct road closures and resource needs; verify updates before forwarding them. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. --- ## TEE · Q4A · Explain the detail the application of GIS in Disaster Management during the recovery … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q4a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4A. Explain the detail the application of GIS in Disaster Management during the recovery stage [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Recovery decisions combine observed damage, services, population and rebuilding constraints. 1. **Assess spatial damage.** Compare pre-event records with imagery and field surveys to map damaged buildings, roads, crops and utilities. 2. **Prioritise restoration.** Locate hospitals, drinking-water systems and isolated settlements so critical services and access are restored in a reasoned sequence. 3. **Match needs and resources.** Map shelter, livelihoods and assistance coverage to reveal underserved areas; verify needs with affected communities. 4. **Plan safer reconstruction.** Overlay hazard and land-use constraints to avoid rebuilding critical assets in the same high-risk locations. 5. **Monitor progress.** Update repair status, housing completion and access to services. A shared map reduces duplication and supports transparent review. 6. **Review and protect data.** Document uncertainty and survey dates, correct discrepancies and limit access to sensitive personal information. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q4B · Differentiate between Hazard, Risk, Vulnerability and Disaster citing suitable exampl… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q4b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q4B. Differentiate between Hazard, Risk, Vulnerability and Disaster citing suitable examples, considering Landslides as a Natural Disasters. [10 marks] #### Answer | Concept | Landslide example | | --- | --- | | Hazard | Potential downslope movement of unstable soil or rock. | | Exposure | Houses, roads and people within the potential runout area. | | Vulnerability | Weak structures, limited alternative access or lack of warning/support. | | Risk | Potential deaths, damage and disruption resulting from the hazard interacting with exposure and vulnerability. | | Disaster | A landslide causes serious disruption to an affected community. | Risk exists before the event; a disaster is the realised serious disruption. Drainage and stabilisation reduce hazard in suitable conditions, relocation reduces exposure, and safer structures and evacuation support reduce vulnerability. **Definition.** Vulnerability is the susceptibility of people or assets to harm. Capacity is the available strength and resources to manage risk. Resilience is the ability to withstand, adapt to and recover from disruption while maintaining or restoring essential functions. ## Four dimensions of vulnerability | Dimension | Why it increases harm | Risk reduction | | --- | --- | --- | | Physical | Weak construction may collapse in shaking. | Safe design and retrofitting | | Social | Inaccessible warnings exclude people with hearing or visual disabilities. | Accessible messages and assisted evacuation | | Economic | A household with one damaged livelihood has little income for recovery. | Savings, social protection and livelihood diversity | | Environmental | Wetland loss removes flood storage. | Wetland protection and catchment restoration | Being exposed is different from being vulnerable. Two buildings in the same seismic area are exposed to similar shaking, but the poorly built one may suffer greater damage. A disability does not itself determine disaster loss: inaccessible transport, buildings and warning systems often create the disabling barrier. ## Capacity operates at three levels 1. **Individual:** knowledge, first-aid training and an evacuation plan. 2. **Organisational:** staff, equipment, procedures and coordination in a hospital or local authority. 3. **Enabling environment:** laws, budgets, institutions and inclusive participation. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q5A · An area faces River Floods frequently. Suggest any 4 mitigation measures that can be … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q5a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5A. An area faces River Floods frequently. Suggest any 4 mitigation measures that can be adopted for the same. Describe and Justify your suggestion in detail with sketches. [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Four complementary river-flood mitigation measures](https://deep-learning-study-room.vercel.app/dm/fig/river-four.7447872224.svg) Diagram: Four complementary river-flood mitigation measures. Labels: Four complementary river-flood mitigation measures | Four complementary river-flood mitigation measures | 1 · Natural storage | Protect wetlands and floodplains; slow and | store part of the runoff. | 2 · Maintained flow paths | Keep drains, culverts and channels usable after | engineering assessment. | 3 · Managed storage | Reservoirs / detention hold inflow; planned | releases require warnings. | 4 · Safer land use | Keep critical facilities outside high-risk areas; | protect permitted buildings. | Mapped floodplain | Residual risk remains: warning and evacuation support all four measures. Natural storage, maintained flow paths, managed storage and safer land use match the four measures below. 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. All structural measures retain residual risk, so forecasting, warning and evacuation remain necessary. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q5B · State and elaborate in brief 10 general ethical principles to be followed in Disaster… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q5b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q5B. State and elaborate in brief 10 general ethical principles to be followed in Disaster management. [10 marks] #### Answer Ethical principles protect life and dignity, improve trust and coordination and prevent unfair treatment or avoidable harm. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q6A · Explain “Methane” as the incident reporting protocol for structured communication Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q6a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6A. Explain “Methane” as the incident reporting protocol for structured communication [10 marks] #### Answer **Definition.** Structured incident reporting gives responders a common picture of an emergency. METHANE is a widely used multi-agency reporting mnemonic that appears in the supplied archive’s TEE questions. | Letter | Information to report | | --- | --- | | M | Major incident: declared or not; do not invent a declaration. | | E | Exact location: identifiable site and geographic details. | | T | Type of incident. | | H | Hazards present or developing. | | A | Access: safe entry and exit routes, including blockages. | | N | Number and condition of casualties; label estimates and unknowns. | | E | Emergency services present and required. | The acronym is not a chemistry question about methane gas. Send a short verified initial report, distinguish observations from estimates, and update as information changes. Exact procedures follow the relevant response organisation; this mnemonic is included as an archival examination application. ## Example report: hypothetical flood incident Major incident status: awaiting confirmation. Location: east-bank bridge approach, Ward 4. Type: river inundation. Hazards: fast water and damaged power line. Access: west approach closed; north road currently confirmed usable. Casualties: three people reported stranded; injury status unknown. Services: local police on scene; authorised rescue and utility support requested. This is an illustration, not a report of a real event. ## Emergency management expert: role by phase 1. Assess hazards and vulnerability and translate findings into plans. 2. Define responsibilities and coordinate agencies, communities and resources. 3. Train personnel, organise safe drills and improve weak procedures. 4. During response, support verified information, priorities and resource allocation. 5. During recovery, assess needs, restore systems, plan resilient reconstruction and review lessons. ## Worked incident report: illustrative details | Field | Example report | | --- | --- | | M | Major incident declared by the authorised incident commander. | | E | Example: Riverside School, east gate, mapped grid reference shared with control. | | T | Flooding with people stranded. | | H | Fast water, submerged electrical equipment and unstable walls. | | A | Use the northern approach; southern bridge reported closed. Confirm route status. | | N | Twenty people reported stranded; injuries not yet confirmed. | | E | Police and fire teams on scene; request water rescue and medical support. | Update time-stamped information as it is verified. METHANE is an acronym for structured reporting here, not the chemical methane gas. #### Illustrative application · A flood incident report A responder reports the incident location, flood type, live electrical hazards, safe access, approximate casualties and services required. Those facts help the receiving service deploy suitable resources; saying only “there is a flood” does not. --- ## TEE · Q6B · Discuss in detail the role of Emergency Expert in Disaster management citing relevant… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q6b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q6B. Discuss in detail the role of Emergency Expert in Disaster management citing relevant examples. [10 marks] #### Answer 1. **Assess and plan.** Identify hazards, exposed groups and resource gaps; for example, inspect flood evacuation access and prioritise critical facilities. 2. **Train and prepare.** Define roles, communication, equipment and safe drills; ensure participants and staff needing assistance are included. 3. **Coordinate safe response.** Maintain situational awareness, establish appropriate incident arrangements and request specialist resources rather than sending untrained people into danger. 4. **Communicate and protect people.** Issue clear verified information, keep incident records, organise accountability and promote fair assistance while safeguarding responders. 5. **Support recovery and learning.** Assess restoration needs, coordinate responsible agencies and review failures so that plans, training and infrastructure improve. ## Applied example: a school fire drill The expert first checks the approved building plan, alarm, safe exits and assistance arrangements. The expert briefs wardens, agrees a safe drill signal and verifies that emergency access remains clear. During the exercise, observers monitor movement without creating real smoke or fire. At the assembly point, class lists and visitor records support accountability; a missing person is reported through the agreed chain instead of prompting an untrained search. The expert then records blocked exits, unclear instructions or communication failures, assigns corrective actions and checks them before the next drill. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q7A · Recommend a suitable mitigation measures that can be suitably adopted for capacity de… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q7a Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7A. Recommend a suitable mitigation measures that can be suitably adopted for capacity development against cyclone. Justify and explain any such 4 measures in detail. [10 marks] #### Answer 1. **Warning and last-mile communication.** Use official forecasts, clear action messages and several communication channels. A forecast must reach fishers, visitors and people without smartphones, with enough time and support to act. 2. **Shelters and evacuation access.** Provide accessible shelters outside surge and flood zones, linked by reliable routes. Practise transport, headcounts and support for people needing assistance so that shelter capacity becomes usable protection. 3. **Resilient buildings and lifelines.** Strengthen roof connections and protect power, water and communication systems to appropriate standards. Hospitals require backup services and protected equipment to keep functioning during response. 4. **Risk-informed coastal land use.** Use surge and flood maps to control exposed development and locate critical infrastructure safely. Protect mangroves and appropriate coastal vegetation as part of a wider protection system, not a guaranteed barrier against every surge. These measures build information, physical, organisational and community capacity. They reduce losses; they do not prevent the atmospheric cyclone itself. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q7B · Elaborate in detail significance of Disaster Scale in Disaster management. Describe t… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2026-07-10/q7b Actual TEE paper · 100 marks · 3 hours · Q1 + any four of Q2–Q7 ### Q7B. Elaborate in detail significance of Disaster Scale in Disaster management. Describe the Disaster Scale with a neat sketch for any one type of Disaster. [10 marks] #### Answer **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1A · Distinguish between Analysis and Assessment of a Disaster. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Distinguish between Analysis and Assessment of a Disaster. [5 marks] #### Answer | Aspect | Analysis | Assessment | | --- | --- | --- | | Purpose | Explain causes, processes and relationships. | Judge the level of risk, damage, needs or available resources. | | Question | Why did the event produce these impacts? | How severe is the situation and what is required? | | Methods | Study hazard behaviour, exposure, failures and interactions. | Survey, estimate and prioritise using defined criteria. | | Use | Improve understanding, models and management choices. | Support decisions on preparedness, response and recovery. | Both can occur before or after a disaster. **Risk assessment** can be pre-event; **damage and needs assessment** is commonly post-event. They should not be defined simply as “analysis before, assessment after”. ## Nisarga example Analysis examines cyclone wind/rain, exposed settlements, roof weaknesses and service failures to explain impacts. Assessment estimates affected households, damage, shelter and water requirements and the status of roads and power. Together they support targeted relief and safer reconstruction; historical quantities must come from verified records. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · Elaborate in detail any 5 causes of Forest Fires. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. Elaborate in detail any 5 causes of Forest Fires. [5 marks] #### Answer 1. **Lightning.** A strike can ignite sufficiently dry vegetation, especially when little rain reaches the ground. 2. **Unattended flames.** Careless campfires, discarded smoking materials or other open flames can ignite litter. 3. **Escaped burning.** Agricultural or debris burning can spread into nearby forest when control fails. 4. **Deliberate ignition.** Arson can start a fire; motives and responsibility require investigation rather than assumption. 5. **Equipment or electrical faults.** Sparks and damaged power infrastructure can ignite dry fuel. Heat, drought and wind make fuels drier and spread faster; they are not always the ignition source themselves. #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. --- ## TEE · Q1C · State the 5 responsibilities of an emergency response expert in Fire drill. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. State the 5 responsibilities of an emergency response expert in Fire drill. [5 marks] #### Answer 1. **Assess and plan.** Identify hazards, exposed groups and resource gaps; for example, inspect flood evacuation access and prioritise critical facilities. 2. **Train and prepare.** Define roles, communication, equipment and safe drills; ensure participants and staff needing assistance are included. 3. **Coordinate safe response.** Maintain situational awareness, establish appropriate incident arrangements and request specialist resources rather than sending untrained people into danger. 4. **Communicate and protect people.** Issue clear verified information, keep incident records, organise accountability and promote fair assistance while safeguarding responders. 5. **Support recovery and learning.** Assess restoration needs, coordinate responsible agencies and review failures so that plans, training and infrastructure improve. ## Applied example: a school fire drill The expert first checks the approved building plan, alarm, safe exits and assistance arrangements. The expert briefs wardens, agrees a safe drill signal and verifies that emergency access remains clear. During the exercise, observers monitor movement without creating real smoke or fire. At the assembly point, class lists and visitor records support accountability; a missing person is reported through the agreed chain instead of prompting an untrained search. The expert then records blocked exits, unclear instructions or communication failures, assigns corrective actions and checks them before the next drill. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q1D · Elaborate in brief the classification chain of Indian Ocean Tsunami. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Elaborate in brief the classification chain of Indian Ocean Tsunami. [5 marks] #### Answer **Chain:** natural geophysical trigger (undersea earthquake) → physical ocean-wave/inundation hazard → water, land, settlements and livelihoods affected → international/transboundary disaster for the Indian Ocean event of 26 December 2004. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q2A · Elaborate in brief any 5 causes for Cold Wave and Droughts. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Elaborate in brief any 5 causes for Cold Wave and Droughts. [10 marks] #### Answer ## Five cold-wave causes 1. **Cold air intrusion.** Air masses from colder regions can sharply lower local temperatures. 2. **Clear nights.** The ground loses heat through radiation when cloud cover is limited. 3. **Light winds.** In some settings light winds allow a shallow cold layer to develop near the surface. 4. **Snow and cold surfaces.** Snow cover and nearby cold terrain can reinforce low temperatures under suitable conditions. 5. **Persistent circulation.** Weather patterns can sustain cold conditions over several days. Climate change does not mean cold events become impossible. ## Five drought causes and contributing factors 1. **Persistent rainfall deficit.** Rainfall stays below the local seasonal requirement for a sustained period. Delayed monsoon onset, long dry spells or early withdrawal reduce the water entering soil, streams and reservoirs. 2. **High evaporative demand.** Hot, dry and windy conditions increase evaporation and plant water demand. The same rainfall deficit can therefore produce a more severe soil-moisture shortage. 3. **Large-scale circulation variability.** Variations in circulation and monsoon behaviour can suppress rain over a region. ENSO can influence some Indian droughts, but not every El Niño produces drought everywhere and not every drought has this cause. 4. **Excessive withdrawal relative to recharge.** Over-abstraction of groundwater or surface water can intensify hydrological shortage. Water-demand pressure amplifies drought impacts; it does not itself cause a meteorological rainfall deficit. 5. **Reduced storage and poor water management.** Degraded catchments, loss of suitable water storage, leakage and unsuitable crop-water demand leave less usable supply during a dry period. These conditions increase drought vulnerability rather than independently proving that rainfall has decreased. Separate the **climatic trigger** from the **human factors that intensify water shortage**. Example: a village faces deficient monsoon rainfall; high heat dries the soil faster, heavy pumping lowers groundwater, and leaky supply pipes worsen the shortage. Source: [Government of India Manual for Drought Management, hosted by NIDM](https://nidm.gov.in/pdf/manuals/drought_manual.pdf): rainfall deficit, evaporative losses and water-demand indicators. This explains mechanisms, not a declaration of drought for any specific district. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q2B · Enlist and elaborate in detail any 5 techniques for mitigation of River Floods. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Enlist and elaborate in detail any 5 techniques for mitigation of River Floods. [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Four complementary flood-risk measures](https://deep-learning-study-room.vercel.app/dm/fig/flood-measures.8571e23804.svg) Diagram: Four complementary flood-risk measures. Labels: Four complementary flood-risk measures | Four complementary flood-risk measures | 1 · Storage | Wetlands and detention hold water and reduce | a peak. | 2 · Drainage | Maintain flow paths, culverts and outfalls. | 3 · Land-use control | Keep vulnerable development outside mapped | floodways. | 4 · Warning and evacuation | Move people on safe routes while access | remains usable. | floodway | safe site | people | shelter Risk reduction combines storage, protected land use, maintained conveyance and safe evacuation. 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. 5. **Combine protection with warning and preparedness.** Appropriately designed embankments or levees protect selected areas, but can overtop or fail. Maintain them, issue actionable forecasts, mark escape routes and provide safe shelters for the remaining risk. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q3A · State the 4 levels of Early Warning system and elaborate each in detail citing releva… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. State the 4 levels of Early Warning system and elaborate each in detail citing relevant examples for each level. [10 marks] #### Answer **Definition.** An operating level describes the geographic and institutional scale at which a warning system works. It is different from a warning stage or the components of a system. | Level | Who / what it serves | Example | | --- | --- | --- | | Community / local | A settlement, municipality or local community. | A village flood gauge, siren and trained evacuation volunteers. | | National | A national technical agency and national coordination system. | IMD cyclone monitoring and warnings for India. | | Regional | Several countries or a wider geographic region sharing a hazard. | An Indian Ocean tsunami warning arrangement connecting national centres. | | Global | International monitoring and information across the world. | International health or food-security monitoring and alerts. | ## Three different lists: read the question carefully | Question asks for… | Give this list | | --- | --- | | Operating levels | Local → national → regional → global. | | EWS components | Risk knowledge → monitoring/forecasting → communication → response capability. | | IMD cyclone warning stages | Pre-cyclone watch → cyclone alert → cyclone warning → post-landfall outlook. | #### Illustrative application · A warning must reach people who can act A technically accurate warning still fails if a resident cannot understand its language or has no accessible transport. Add a clear message, known safe destination, assistance arrangements and backup channels; each repairs a different link between detection and protection. --- ## TEE · Q3B · “GIS is an effective tool for River Flood Disaster Management”. Explain the statement… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. “GIS is an effective tool for River Flood Disaster Management”. Explain the statement in detail. Elaborate in brief how it can be adopted in four Phases of Disaster Relief. [10 marks] #### Answer For river flood management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Overlay flood extent/depth, terrain and development to support floodplain zoning, storage planning and protection of critical facilities. 2. **Preparedness.** Map forecasts, vulnerable settlements, shelters and alternate evacuation routes; rehearse responses to road and bridge closures. 3. **Response.** Update inundation and accessibility maps, locate stranded people and allocate boats, supplies and medical teams using verified field reports. 4. **Recovery.** Map damage and losses, track restoration of roads and water supply, prioritise rebuilding and check that reconstructed assets are less exposed. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q4A · State 7 Do’s and 3 Don’ts as response to Earthquake. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. State 7 Do’s and 3 Don’ts as response to Earthquake. [10 marks] #### Answer ## Seven dos 1. **Drop, Cover and Hold On.** During shaking indoors, protect yourself under suitable sturdy cover and hold on; if cover is unavailable, protect your head and neck where you are. 2. **Stay clear of falling objects.** Keep away from windows, tall unsecured furniture and damaged partitions. 3. **If outdoors, seek open space.** Keep clear of buildings, trees, poles and wires without moving into another hazard. 4. **If driving, stop safely.** Pull over away from bridges, overpasses and wires where safe and remain in the vehicle until shaking stops. 5. **Move carefully after shaking.** When safe, use designated exits and stairs, expecting aftershocks and debris. 6. **Account and report.** Check on people, report injuries or trapped people and follow the instructions of trained responders. 7. **Follow official updates.** Keep clear of unsafe structures and respond appropriately if you are near a coast and notice tsunami warning signs. ## Three don’ts 1. **Do not rush outside while shaking.** Falling glass and masonry can make exits and building edges dangerous. 2. **Do not use lifts.** Power loss or damage can trap occupants. 3. **Do not re-enter damaged buildings without clearance.** Aftershocks and hidden structural damage can cause collapse. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q4B · Explain the following concepts (Risk, Hazard, Vulnerability, Disaster) related to Ide… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Explain the following concepts (Risk, Hazard, Vulnerability, Disaster) related to Identification of Disaster considering any one type of risk. [10 marks] #### Answer | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | **Definition.** A hazard is a potentially harmful process, phenomenon or human activity. A disaster is a serious disruption of a community caused when hazardous events interact with exposure, vulnerability and limited capacity. ## One example, from cause to consequence Heavy rain is a hazard. People living beside an overflowing drain are exposed. Weak houses and blocked drainage increase vulnerability. Rescue boats, warnings and safe shelters increase capacity. If flooding seriously disrupts lives, services and livelihoods, the event becomes a disaster. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. A hazard becomes a disaster through its interaction with exposed, vulnerable people and assets. Capacity changes the outcome. | Term | Meaning | Flood example | | --- | --- | --- | | Hazard | What can cause harm? | Heavy rainfall / high river flow | | Exposure | Who or what is in the affected place? | Homes beside the river | | Vulnerability | Why can those exposed suffer damage? | Weak houses; limited mobility; poor drainage | | Capacity | What strengths help manage the threat? | Warnings, shelters, trained rescue teams | | Disaster risk | Potential losses before the event occurs | Possible deaths, damage and disruption | | Disaster | Serious disruption when the event occurs | Homes inundated and essential services overwhelmed | #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q5A · Explain in brief classification of floods on basis of sources and duration. Also stat… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. Explain in brief classification of floods on basis of sources and duration. Also state examples of the same occurred in India for each type. [10 marks] #### Answer **Definition.** A flood is the inundation of normally dry land by water. It may result from river overflow, intense rainfall, inadequate drainage, storm surge or sudden release of stored water. ## Two separate ways of classifying floods | By onset | Meaning | Planning implication | | --- | --- | --- | | Slow-onset | Water rises gradually, often after prolonged rainfall. | There may be time for planned evacuation, but long duration disrupts livelihoods. | | Rapid-onset | Water rises over a comparatively short period. | Warnings and prompt action become critical. | | Flash flood | Very rapid rise, often within minutes to a few hours of the trigger. | Little lead time; fast flow and debris can be highly destructive. | | By source | How it develops | | --- | --- | | River / fluvial | River discharge exceeds channel capacity and water spreads over its floodplain. | | Urban / pluvial | Rainfall runoff exceeds drainage or infiltration capacity; a river need not overflow. | | Dam-breach | Dam failure releases reservoir water suddenly downstream. | | Coastal surge | Wind and low pressure raise sea level; high tide can compound flooding. | | GLOF | Sudden release from a glacial lake, for example after its retaining barrier fails. | “Flash” describes speed, whereas “dam-breach” describes the source. A dam-breach flood may therefore also be a flash flood. Onset speed and total flood duration are different; a rapidly starting event may leave some areas inundated for much longer. The PPT uses “rapid” and “flash” inconsistently, so describe the actual time-scale instead of forcing a rigid universal duration. **Indian examples:** monsoon river floods in Assam illustrate river flooding; Mumbai in July 2005 illustrates severe urban flooding; Panshet in 1961 illustrates dam-failure flooding; coastal inundation during a cyclone illustrates coastal flooding. Uttarakhand in June 2013 included rapid mountain floods and debris flows. Source and speed of onset are different classification axes. ## Keep source and onset classifications separate | Classification axis | Type | Indian example and explanation | | --- | --- | --- | | Source | River flood | Assam monsoon river flooding: rivers overflow or inundate adjacent low-lying land. | | Source | Urban / surface-water flood | Mumbai, July 2005: exceptional rainfall combined with drainage and urban vulnerabilities. | | Source | Dam-failure flood | Panshet, 1961: failure released stored water downstream. | | Source | Coastal flood | The 1999 Odisha super cyclone produced destructive storm-surge inundation along the coast. | | Onset / duration | Slow-onset or sustained flood | Seasonal Assam/Brahmaputra flood episodes can build and persist over days. The actual timing varies by event and location. | | Onset / duration | Rapid-onset / flash flood | Uttarakhand, June 2013 included rapidly developing mountain floods and debris flows. A flash flood describes rapid onset, not a separate water source. | One event can occupy both classifications: a sudden dam-break flood is a source-defined dam-failure flood and a rapid-onset flood. Do not treat “river” and “slow” as mutually exclusive categories or assume every river flood develops slowly. Coastal-case source: [NDMA cyclone-management guidelines, hosted by NIDM](https://nidm.gov.in/pdf/guidelines/cyclones.pdf), discussion of storm surge and inland inundation during the October 1999 Odisha cyclone. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q5B · Discuss in detail with neat sketch Disaster Cycle and explain progression of scale co… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Discuss in detail with neat sketch Disaster Cycle and explain progression of scale considering any one Disaster. [10 marks] #### Answer **Definition.** Disaster management is the organised process of preventing or reducing risk, preparing for emergencies, responding to impacts and supporting recovery. Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle The cycle repeats: lessons from recovery must improve prevention and preparedness. | Stage | Meaning | One clear example | | --- | --- | --- | | Prevention | Avoid a risk where possible. | Keep a new school out of an active floodway. | | Mitigation | Reduce the severity of losses. | Strengthen an existing school against shaking. | | Preparedness | Build readiness to act. | Prepare evacuation routes and conduct drills. | | Response | Take urgent life-saving action. | Rescue trapped people and provide emergency shelter. | | Recovery | Restore services and livelihoods. | Restore water, power and access to education. | | Rehabilitation / reconstruction | Restore functioning and rebuild damaged systems more safely. | Rebuild homes to appropriate safety standards. | ## Why some diagrams show four stages The four-stage cycle uses **mitigation → preparedness → response → recovery**. Prevention is treated with risk reduction; rehabilitation and reconstruction are included in recovery. The six-stage version separates them for explanation. These activities overlap; response can begin before impact, for example by evacuating after a cyclone warning. ## Build Back Better Recovery should reduce future risk. Rebuilding the same weak house in the same floodway may restore yesterday’s vulnerability. Safer siting, stronger design, accessible services and restored livelihoods improve resilience. **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q6A · Draft the 10-pointer checklist defining role of Emergency Response Expert for conduct… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Draft the 10-pointer checklist defining role of Emergency Response Expert for conducting drill for Gas Leak, for Industrial Training. [10 marks] #### Answer A gas leak training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain appropriate detector/alarm and the source of authorised updates. 4. **State protective actions.** Teach chemical-specific evacuation or shelter-in-place instructions. 5. **Assign responsibilities.** Identify industrial specialists, medical services and local authorities and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q6B · Discuss in detail Preparedness and Response stages of Disaster Relief for Cyclone Dis… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Discuss in detail Preparedness and Response stages of Disaster Relief for Cyclone Disaster. [10 marks] #### Answer | Training item | Tsunami | Cyclone | | --- | --- | --- | | Trigger and lead time | Recognise official alerts and natural signs; nearby sources can give very little time. | Follow progressively updated cyclone forecasts and warnings, often with longer preparation time. | | Movement | Rehearse rapid movement to designated high ground/inland safe areas. | Rehearse early evacuation to cyclone-safe shelters before routes become unsafe. | | Shelter and hazards | Avoid mapped inundation areas and expect several waves. | Protect against wind, flying debris, storm surge and rain flooding. | | Return | Wait for the tsunami all-clear; the first wave may not be largest. | Wait for official clearance and do not mistake the eye’s calm for safety. | Both manuals need accessible routes, accountability, essential supplies, family contacts and arrangements for people needing assistance. Local hazard maps determine actual safe destinations. ## Preparedness versus response | Disaster | Preparedness before impact | Response when threatened/affected | | --- | --- | --- | | Tsunami | Map inundation, mark safe routes, teach natural signs and practise evacuation. | Move to safe ground promptly on warning, restrict unsafe coast access and conduct trained rescue/relief. | | Cyclone | Monitor forecasts, prepare shelters, secure suitable buildings and plan assisted evacuation. | Complete evacuation before conditions deteriorate; provide shelter, urgent care and safe restoration. | #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q7A · Describe in detail citing relevant examples how Engineers can prove to be effective e… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Describe in detail citing relevant examples how Engineers can prove to be effective emergency response expert for reducing the adverse impacts of disasters. [10 marks] #### Answer Engineers reduce risk through safe design, reliable infrastructure, technical assessment and coordinated restoration. They work within their competence and alongside emergency authorities. | Specialisation | Before | Response and recovery example | | --- | --- | --- | | Civil/structural | Assess sites, use seismic/flood-resistant design and inspect structures. | Assess damaged bridges/buildings and guide safe repair or reconstruction. | | Mechanical | Maintain pumps, machinery, pressure systems and safety interlocks. | Restore pumping and essential plant safely; investigate failures. | | Electrical | Protect supply systems and provide appropriate redundancy and backup. | Isolate dangerous systems through trained staff and restore essential power. | | Computer/IT/communication | Protect data and communication, maintain backups and mapping systems. | Restore networks, support verified incident information and protect sensitive records. | For example, after a flood, civil engineers assess road access, electrical teams make damaged installations safe, mechanical teams restore pumps and IT teams support reliable information sharing. Coordination avoids restoring one system in a way that endangers another. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. --- ## TEE · Q7B · Describe in detail role of cordon-off zones in 4 phases of disaster relief for Tsunam… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-05-12--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-05-12/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Describe in detail role of cordon-off zones in 4 phases of disaster relief for Tsunami. [10 marks] #### Answer A **cordon** is a controlled boundary used to keep people away from danger and organise safe access. Its location depends on the actual hazard, changing conditions, terrain and operations; it is not a fixed-radius circle for every event. Swipe across the diagram to read its labels ↔ ![A safe cordon follows the hazard, not a fixed circle](https://deep-learning-study-room.vercel.app/dm/fig/cordon.14f06142d3.svg) Diagram: A safe cordon follows the hazard, not a fixed circle. Labels: A safe cordon follows the hazard, not a fixed circle | A safe cordon follows the hazard, not a fixed circle | Sea / water | Restricted | hazard area | Authorised | teams only | Controlled access | Check entry; maintain rescue routes. | Safe reception / assembly | Outside assessed danger; accessible shelter, | headcounts and coordination. | Evacuate to safe ground → | Command levels (gold/silver/bronze) describe roles, not universal cordon distances. For a tsunami or coastal flood, the hazard boundary follows inundation risk. Safe reception and command are inland or on safe high ground. 1. **Inner restricted area.** The inundated or otherwise dangerous area is restricted to authorised, appropriately equipped teams. Control entry and exit and keep untrained people away from moving water, debris, unstable buildings and electrical hazards. 2. **Controlled support area.** Place access control, team briefing, equipment and appropriate casualty transfer at a safe boundary. Maintain rescue routes and prevent crowds from obstructing operations. Move this area if conditions change. 3. **Safe outer area.** Locate assembly, public information, relief reception and coordination outside the hazard. Keep access available for emergency vehicles and account for evacuees. 4. **Command and review.** Bronze, silver and gold commonly describe operational, tactical and strategic command responsibilities. The lecture illustrates them as zones; they do not define universal physical distances. Review boundaries after updated forecasts, damage reports or an official all-clear. **Tsunami application:** close access to beaches and low-lying inundation routes, move people inland/uphill to designated safe areas, permit only controlled rescue access and keep the exclusion in place while further waves remain possible. A tsunami can arrive as several waves; the first is not necessarily the largest. | Phase | Role | | --- | --- | | Mitigation | Map likely inundation and safe locations before choosing control points. | | Preparedness | Assign access-control roles, mark evacuation routes and practise setting up boundaries. | | Response | Restrict hazardous areas, maintain rescue access and keep public reception safely outside. | | Recovery | Adjust restrictions as hazards are assessed; reopen areas only when competent authorities judge them safe. | #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q1A · Differentiate between Geological and Environmental Hazards elaborating, citing any 2 … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Differentiate between Geological and Environmental Hazards elaborating, citing any 2 relevant examples. [5 marks] #### Answer | Hazard group | Explanation | Typical disaster | | --- | --- | --- | | Geological | Processes of the solid Earth, such as fault rupture or slope failure. | An earthquake or landslide disaster. | | Hydrometeorological | Water and weather processes such as intense rain, river flow or cyclone winds. | River flooding or a cyclone disaster. | | Biological | Pathogens or biological agents affecting populations. | An epidemic. | | Technological | Failures or hazardous releases involving industrial or engineered systems. | Bhopal industrial gas disaster. | | Environmental | Degradation or pollution that harms ecosystems and can increase other risks. | Severe toxic contamination affecting water, livelihoods and health. | Categories can overlap and trigger cascading impacts. For example, an earthquake is geological, but a resulting industrial release is a secondary technological hazard. Geological examples include fault rupture and landslides. Environmental examples include severe pollution and ecosystem degradation; these can interact with other hazards and increase vulnerability. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · With a neat sketch, elaborate in detail various stages of Disaster Scale considering … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. With a neat sketch, elaborate in detail various stages of Disaster Scale considering any one type of disaster. [5 marks] #### Answer **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1C · Demonstrate in detail the application of GIS in 4 phases of Tsunami Disaster Manageme… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Demonstrate in detail the application of GIS in 4 phases of Tsunami Disaster Management considering a case study example. [5 marks] #### Answer For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. 1. **Event and setting:** On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. 2. **Causes and vulnerability:** Seafloor displacement generated waves; exposed coastal settlements and limited warning readiness increased losses. 3. **Impacts:** Coastal inundation, housing and livelihood destruction and disruption across several countries, including India. 4. **Response and recovery:** Rescue, shelter and livelihood rehabilitation; India subsequently strengthened tsunami monitoring and warning through INCOIS/ITEWC. 5. **Lessons:** Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q1D · Elaborate in detail classification of “Nisarg Cyclone - 2021” on basis of Legal Bound… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Elaborate in detail classification of “Nisarg Cyclone - 2021” on basis of Legal Boundaries. Also elaborate types of legal boundaries. [5 marks] #### Answer Date correction: Nisarga occurred in June 2020; “2021” is printed in this paper. **Chain:** natural → atmospheric/hydrometeorological → wind, rain and possible coastal inundation affecting air, water, land and society → local/regional impact within India. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. Nisarga made landfall in Maharashtra on 3 June 2020. Its affected footprint and coordination needs determine the administrative level; the occurrence of a cyclone does not automatically make it a global disaster. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q2A · Discuss in detail any 5 considerations to be taken into account while planning a dril… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Discuss in detail any 5 considerations to be taken into account while planning a drill for Fire Safety in a Commercial Building. [10 marks] #### Answer A fire drill is a planned rehearsal of emergency procedures. The checklist should test safe action and reveal practical weaknesses without creating a real hazard. Swipe across the diagram to read its labels ↔ ![A drill tests the full evacuation process](https://deep-learning-study-room.vercel.app/dm/fig/evacuation.06122809c0.svg) Diagram: A drill tests the full evacuation process. Labels: A drill tests the full evacuation process | A drill tests the full evacuation process | Alarm | Recognise the signal | Safe movement | Use the assigned exit | Assembly | Count and report | Review | Correct the gaps | Include visitors and people needing assistance; keep emergency access clear. The sequence is alarm → safe exit → assembly → accountability → review. 1. **Assess the building.** Identify ignition sources, fuel, occupancy and high-risk rooms; choose a realistic scenario. 2. **Set objectives.** Decide whether the drill tests alarm recognition, evacuation, assisted movement or accountability. 3. **Inspect exits.** Check that exit routes are marked, usable and free of obstructions; do not create unsafe bottlenecks. 4. **Choose an assembly point.** Select a safe, accessible place away from smoke, structures and emergency vehicle access. 5. **Test communication.** Check alarms and public-address systems; prepare a backup and an unambiguous signal for a real emergency. 6. **Assign responsibilities.** Name an incident coordinator, floor wardens, first-aid staff and people responsible for counting occupants. 7. **Include everyone.** Plan assistance for persons with disabilities, visitors and others needing support; brief helpers in advance. 8. **Coordinate services.** Inform relevant building managers and emergency services; keep equipment ready for trained users. 9. **Observe and account.** Record movement and delays, conduct a headcount, report missing people and keep participants from re-entering. 10. **Debrief and correct.** Review observations, assign corrective actions, update the plan and repeat the drill after improvements. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2B · Explain in detail causes for occurrence of disaster citing relevant examples of disas… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Explain in detail causes for occurrence of disaster citing relevant examples of disaster caused by each. [10 marks] #### Answer | Hazard group | Explanation | Typical disaster | | --- | --- | --- | | Geological | Processes of the solid Earth, such as fault rupture or slope failure. | An earthquake or landslide disaster. | | Hydrometeorological | Water and weather processes such as intense rain, river flow or cyclone winds. | River flooding or a cyclone disaster. | | Biological | Pathogens or biological agents affecting populations. | An epidemic. | | Technological | Failures or hazardous releases involving industrial or engineered systems. | Bhopal industrial gas disaster. | | Environmental | Degradation or pollution that harms ecosystems and can increase other risks. | Severe toxic contamination affecting water, livelihoods and health. | Categories can overlap and trigger cascading impacts. For example, an earthquake is geological, but a resulting industrial release is a secondary technological hazard. A disaster is produced by the interaction between the trigger and exposure, vulnerability and capacity. Consequently, “natural cause” describes the trigger but does not mean unsafe construction, exclusion or poor planning had no part in the losses. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q3A · Illustrate with neat sketch any 2 types of waves causing earthquake and any 2 types o… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Illustrate with neat sketch any 2 types of waves causing earthquake and any 2 types of earthquakes. Also explain the same in detail. [10 marks] #### Answer **Definition.** Seismic waves are disturbances carrying earthquake energy. Body waves travel through the Earth; surface waves propagate along its surface. Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. Compare the direction of energy travel with the local movement of ground particles. | Wave | Particle movement | Travel / key point | | --- | --- | --- | | P: primary | Compression and expansion parallel to travel direction. | Fastest body wave; travels through solids and fluids. | | S: secondary | Shearing perpendicular to travel direction. | Slower than P; cannot propagate through liquids as shear waves. | | Love | Horizontal side-to-side surface motion. | Surface wave; produces strong lateral shaking. | | Rayleigh | Rolling, approximately elliptical motion in a vertical plane. | Surface wave with vertical and horizontal ground movement. | “Direction of travel” means where wave energy moves. “Particle movement” means how a small part of the ground moves locally. A particle need not travel all the way from the fault to your city. Do not list Love waves as body waves. ## How shaking is recorded A **seismometer** senses ground movement. A **seismograph** is the sensing-and-recording system; a **seismogram** is its record. A classical instrument uses inertia: the supporting ground moves relative to a suspended mass. Modern electronic instruments record a time series. Sensor, recorder and timing reference are the three basic components. ## Why P–S arrival separation is useful P waves arrive first because they travel faster. The P–S time gap generally increases with source distance. Records from several stations constrain earthquake location. One station alone does not uniquely locate an epicentre; real location calculations use travel-time models. **Definition.** Earthquakes can be classified by their cause, position relative to plates and focal depth. These are different classification bases, so one event can belong to several categories at once. Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Three types of relative plate movement. Arrows show motion, not seismic waves. | Boundary | Movement | Typical process | | --- | --- | --- | | Convergent | Plates move towards one another. | Subduction or continental collision builds compressive stress. | | Divergent | Plates move apart. | Extension and faulting occur as new crust forms at spreading boundaries. | | Transform | Plates slide horizontally past one another. | Shear stress is released along strike-slip faults. | | Classification | Types and meaning | | --- | --- | | By plate position | Interplate: at a plate boundary. Intraplate: within a plate away from its boundary; old faults can reactivate. | | By cause | Tectonic movement; volcanic activity; collapse in cavities; induced events associated with activities such as mining or reservoir loading. | | By focal depth | Common seismological grouping: shallow 0–70 km, intermediate 70–300 km, deep 300–700 km. Boundary conventions may be inclusive on either side. | A shallow event can produce severe local shaking because its source is close to the surface, but depth alone does not determine damage. Magnitude, distance, soil, construction and preparedness also matter. Intraplate does not mean harmless: Kutch and the peninsular region have experienced damaging earthquakes. Waves transmit released energy. They are not the underlying cause of tectonic earthquakes. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q3B · Describe in brief any 5 Do’s and Don’ts for individual response during Coastal Floods… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. Describe in brief any 5 Do’s and Don’ts for individual response during Coastal Floods. [10 marks] #### Answer ## Five dos and five don’ts for flood response | Do — action and reason | Do not — unsafe action and reason | | --- | --- | | Act on official warnings and use designated safe ground; flood conditions can change quickly. | Do not wait beside a river, shore, drain or underpass to watch water rise. | | Use an assessed safe route and arrange assistance for people who need it. | Do not walk, swim or drive through floodwater; currents and hidden damage are difficult to judge. | | Carry essential medicines and communication items if doing so does not delay escape. | Do not return for replaceable belongings once the route is unsafe. | | Report stranded people and electricity hazards to trained services from a safe location. | Do not touch fallen wires or attempt an untrained water rescue. | | Follow verified updates and return only after clearance; water can remain contaminated. | Do not assume receding water means buildings, roads or drinking-water supplies are safe. | For coastal flooding, move beyond the mapped inundation area to designated safe inland or high-ground locations. For flash flooding, act promptly because warning time may be very short. The route must be safe for the actual hazard, not merely the shortest route. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q4A · Analysing the case study of “Uttarakhand Forest Fires”, elaborate in detail how Warni… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Analysing the case study of “Uttarakhand Forest Fires”, elaborate in detail how Warning systems and Drone Technology can be adopted for such Disaster Management Preparedness and Response citing relevant examples. [10 marks] #### Answer ## Warning For forest fire risk, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. ## Drone applications Authorised operators can use suitable imaging to inspect fire extent, access and hotspots and transmit observations to incident command. Flights must be coordinated with emergency aviation, kept clear of responders and operated within legal and weather limits. Drones support assessment; they do not replace trained suppression teams or guarantee visibility through smoke. #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. --- ## TEE · Q4B · Critically evaluate the five preparedness measures for mitigating the effects of eart… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Critically evaluate the five preparedness measures for mitigating the effects of earthquakes and droughts in an area. [10 marks] #### Answer ## Earthquakes 1. **Assess and strengthen buildings.** Use qualified structural assessment, appropriate seismic design and retrofitting. This reduces vulnerability but requires resources and competent execution. 2. **Secure non-structural hazards.** Anchor tall furniture and heavy equipment and keep exits clear. This reduces falling-object injuries but cannot compensate for an unsafe main structure. 3. **Rehearse protective action and accountability.** Practise Drop, Cover and Hold On, safe movement after shaking, assistance and headcounts. Repeated, evaluated drills make plans usable. 4. **Prepare communication and essential resources.** Keep verified contacts, first-aid supplies, water and backup communications. Supplies must be maintained and accessible. 5. **Plan coordinated response and continuity.** Identify shelters, emergency access, trained responders and backup arrangements for hospitals and utilities. Review the plan as population, staff and risks change. Earthquake preparedness manages likely consequences; it does not provide reliable prediction of the exact date, place and magnitude of the next earthquake. ## Droughts | Preparedness measure | How it helps | Limitation / condition | | --- | --- | --- | | Monitor rainfall, soil moisture, storage and groundwater with trigger levels. | Recognises developing shortage and activates an agreed plan earlier. | Data must be current and interpreted for local seasons; one dry day does not define drought. | | Prepare a fair water-allocation and demand-management plan. | Protects drinking water and essential services while controlling avoidable demand. | Requires enforceable, equitable rules and a realistic water budget. | | Arrange tested contingency drinking-water supplies. | Identifies reliable sources, safe transport and quality testing before severe shortage. | Tankers and temporary sources are costly and cannot replace long-term secure supply. | | Prepare livelihood, crop and fodder advisories and support. | Helps households adjust decisions and protects vulnerable livelihoods. | Advice must match local crops, rainfall prospects and available resources. | | Assign responsibilities, communications and relief readiness. | Specifies who issues advisories, assists vulnerable households and reviews progress. | Plans and contacts must be updated; a written plan without resources is insufficient. | Long-term recharge, efficient irrigation and crop planning are mitigation measures. Preparedness ensures that agreed actions and support can be activated when a drought develops. Neither guarantees that rainfall deficiency will not recur. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q5A · State and elaborate in brief any 5 Do’s and Don’ts for response during landslides. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. State and elaborate in brief any 5 Do’s and Don’ts for response during landslides. [10 marks] #### Answer | Do | Do not | | --- | --- | | Follow warnings and leave threatened routes/areas when advised. | Do not approach an active slide to watch or photograph it. | | Report new cracks, tilting trees or suddenly changed drainage. | Do not assume a quiet slope is safe immediately after movement. | | Use known safe routes outside the runout area. | Do not cross unstable debris or a closed mountain road. | | Help others from safe positions and contact trained rescue services. | Do not enter unsupported excavations or damaged structures. | | Return only after assessment and clearance. | Do not clear debris or alter drainage without appropriate guidance. | These precautions address both the moving slope and its runout, meaning the area that displaced rock, soil or debris can reach. A person standing below the visible break can still be exposed. Rainfall may continue to weaken the slope after the first movement, so a pause is not evidence of stability. Reporting cracks or drainage changes helps competent authorities assess the site; members of the public should not approach an unstable slope to measure it. Use locally designated safe destinations and official road-closure information. Search, slope excavation and debris removal require trained teams because careless work can trigger further movement or obstruct drainage. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q5B · Explain how global climate change is linked to the increasing frequency and intensity… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Explain how global climate change is linked to the increasing frequency and intensity of floods and droughts, elaborating with relevant example for each. [10 marks] #### Answer 1. **Anthropogenic greenhouse warming.** A warmer climate increases many heat extremes and changes the moisture available for heavy rain. For example, a higher temperature baseline makes an unusually hot period more likely to exceed a harmful heat threshold. This is a mechanism example, not attribution of a particular heat wave to one cause. 2. **Ocean and atmospheric variability.** Patterns such as El Niño redistribute heat and influence atmospheric circulation. For example, El Niño can contribute to deficient rainfall in some regions and heavy rainfall in others; it does not produce the same weather everywhere or guarantee an Indian drought. 3. **Land-use change.** Deforestation and sealed urban surfaces can alter local heat and runoff. For example, replacing vegetation with dark paving reduces shade and evaporative cooling, worsening local heat exposure. This local influence should not be confused with the global greenhouse driver. 4. **Persistent weather and local feedbacks.** Long-lived circulation patterns and feedbacks can sustain extremes. For example, a persistent high-pressure pattern can suppress rain and maintain heat; drying soil then reduces evaporative cooling and amplifies the hot conditions. A warmer atmosphere can hold more moisture and contribute to heavier rainfall when weather conditions support it. Intense rain over saturated or sealed catchments can produce flooding. In other regions or seasons, rainfall deficits and greater evaporative demand can intensify drought. These are compatible outcomes: more variable water availability can produce wet extremes and dry extremes in different places or times. Urban expansion and water use also shape the disaster impacts. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q6A · Differentiate between preparedness and response measures for tsunami and cyclone disa… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Differentiate between preparedness and response measures for tsunami and cyclone disasters. [10 marks] #### Answer | Training item | Tsunami | Cyclone | | --- | --- | --- | | Trigger and lead time | Recognise official alerts and natural signs; nearby sources can give very little time. | Follow progressively updated cyclone forecasts and warnings, often with longer preparation time. | | Movement | Rehearse rapid movement to designated high ground/inland safe areas. | Rehearse early evacuation to cyclone-safe shelters before routes become unsafe. | | Shelter and hazards | Avoid mapped inundation areas and expect several waves. | Protect against wind, flying debris, storm surge and rain flooding. | | Return | Wait for the tsunami all-clear; the first wave may not be largest. | Wait for official clearance and do not mistake the eye’s calm for safety. | Both manuals need accessible routes, accountability, essential supplies, family contacts and arrangements for people needing assistance. Local hazard maps determine actual safe destinations. ## Preparedness versus response | Disaster | Preparedness before impact | Response when threatened/affected | | --- | --- | --- | | Tsunami | Map inundation, mark safe routes, teach natural signs and practise evacuation. | Move to safe ground promptly on warning, restrict unsafe coast access and conduct trained rescue/relief. | | Cyclone | Monitor forecasts, prepare shelters, secure suitable buildings and plan assisted evacuation. | Complete evacuation before conditions deteriorate; provide shelter, urgent care and safe restoration. | #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q6B · Enlist and explain in brief any 8 Ethical Principles applied in response phase of Dis… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Enlist and explain in brief any 8 Ethical Principles applied in response phase of Disaster Management. [10 marks] #### Answer Ethics is needed because scarce resources, urgent decisions and disrupted normal safeguards can lead to exclusion, exploitation and unsafe actions. It provides standards for fair prioritisation, accountability, dignity and public trust. 1. **Humanitarian assistance.** Protect life and provide essentials according to need. For example, distribute safe drinking water to communities whose supply has failed. 2. **Information and participation.** Give accurate, accessible updates and involve affected people. Explain shelter locations in local languages and listen to residents about missing people. 3. **Responsible evacuation.** Use safe routes, transport and accessible shelters; explain the danger and preserve dignity. Any compulsory evacuation must follow lawful authority and necessity. 4. **Respect for dignity.** Protect privacy, sanitation and freedom from exploitation. Separate private changing and washing facilities reduce risks in crowded shelters. 5. **Respect for persons.** Treat survivors respectfully and protect their identity, culture and consent where possible. Do not publish identifiable distressing images merely for publicity. 6. **Assistance for those needing additional support.** Arrange assistance for children, older people, pregnant people and persons with disabilities according to actual needs. Do not separate dependants from carers unnecessarily. 7. **Protection of rescue workers.** Provide training, protective equipment, communication, safe deployment and rest. A fatigued, unprotected responder can become another casualty. 8. **Environmental and social restoration.** Control hazardous waste, protect water sources and restore family/community links. Safe debris disposal and family reunification prevent secondary harm. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q7A · Draft the checklist of 10 precautions to be considered in responding to Heat Wave. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Draft the checklist of 10 precautions to be considered in responding to Heat Wave. [10 marks] #### Answer 1. **Follow heat alerts.** Adjust plans before the hottest period. 2. **Reduce strenuous exposure.** Reschedule outdoor work where possible and take rest breaks. 3. **Use shade and cooling.** Seek cooler spaces and improve safe ventilation/cooling. 4. **Drink safe fluids.** Maintain hydration consistent with personal medical advice. 5. **Wear suitable clothing.** Use lightweight clothing and sun protection appropriate to the setting. 6. **Never leave people in hot vehicles.** Closed parked vehicles can become dangerous rapidly. 7. **Check on vulnerable people.** Support older people, infants, outdoor workers and isolated people. 8. **Prepare water and power arrangements.** Keep essential water and service access available during disruption. 9. **Avoid unsafe assumptions.** Alcohol and ignoring worsening symptoms are not protective strategies. 10. **Seek urgent help for serious illness.** Confusion, collapse or severe heat illness needs urgent medical attention. #### Illustrative application · A city during a heat wave Outdoor workers, older adults and poorly ventilated homes may face different levels of risk during the same hot period. Heat warnings, access to cooling and adjusted work arrangements address vulnerability and exposure; they do not change the weather event itself. --- ## TEE · Q7B · Describe in brief any 5 key highlights and adverse effects of “Indian Ocean Tsunami 2… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2025-02-25--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2025-02-25/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Describe in brief any 5 key highlights and adverse effects of “Indian Ocean Tsunami 2004”. [10 marks] #### Answer 1. **Event and setting:** On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. 2. **Causes and vulnerability:** Seafloor displacement generated waves; exposed coastal settlements and limited warning readiness increased losses. 3. **Impacts:** Coastal inundation, housing and livelihood destruction and disruption across several countries, including India. 4. **Response and recovery:** Rescue, shelter and livelihood rehabilitation; India subsequently strengthened tsunami monitoring and warning through INCOIS/ITEWC. 5. **Lessons:** Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. ## Four measures to reduce future losses 1. **Monitoring and warning.** Connect seismic/ocean observations to actionable public alerts. 2. **Evacuation routes and drills.** Mark safe routes and destinations and include people needing assistance. 3. **Risk-informed siting.** Keep critical facilities and new vulnerable development outside mapped inundation zones. 4. **Resilient services and recovery.** Protect lifelines, prepare backups and rebuild with reduced exposure and better construction. These measures reduce disaster impacts; they cannot prevent the submarine earthquake or every tsunami. --- ## TEE · Q1A · Explain in detail Hydrological and Geological Hazards elaborating, citing any 2 relev… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Explain in detail Hydrological and Geological Hazards elaborating, citing any 2 relevant examples. [5 marks] #### Answer | Hazard group | Explanation | Typical disaster | | --- | --- | --- | | Geological | Processes of the solid Earth, such as fault rupture or slope failure. | An earthquake or landslide disaster. | | Hydrometeorological | Water and weather processes such as intense rain, river flow or cyclone winds. | River flooding or a cyclone disaster. | | Biological | Pathogens or biological agents affecting populations. | An epidemic. | | Technological | Failures or hazardous releases involving industrial or engineered systems. | Bhopal industrial gas disaster. | | Environmental | Degradation or pollution that harms ecosystems and can increase other risks. | Severe toxic contamination affecting water, livelihoods and health. | Categories can overlap and trigger cascading impacts. For example, an earthquake is geological, but a resulting industrial release is a secondary technological hazard. Hydrological hazards concern water occurrence, movement and distribution, such as river flooding and dam-break flooding. Geological hazards concern solid-Earth processes, such as fault rupture and slope movement. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · With neat labelled sketch elaborate in detail the phases of Disaster Cycle considerin… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. With neat labelled sketch elaborate in detail the phases of Disaster Cycle considering any one type of disaster. [5 marks] #### Answer Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle A drought develops slowly, but all stages still apply. 1. **Prevention and mitigation.** Reduce avoidable vulnerability through watershed conservation, suitable cropping, efficient water use and sustainable groundwater management. These do not prevent every rainfall deficit. 2. **Preparedness.** Monitor rainfall, storage and crop stress; plan water priorities, advisories, supply contingencies and livelihood support. 3. **Response.** Provide safe drinking water and urgent livelihood, fodder or health support according to assessed need; manage scarce resources fairly. 4. **Recovery.** Restore productive capacity and livelihoods, repair water systems and improve future planning. Review whether reconstruction and new demand would recreate the same water stress. ## How the cycle connects in one village Before a deficient monsoon, the village improves storage and water-use efficiency: this is mitigation. When monitoring shows a deficit, authorities activate a prepared priority-supply plan: this is preparedness. During severe shortage, safe drinking-water supply and targeted livelihood assistance are response. After conditions improve, repairing sources and restoring livelihoods are recovery. Reviewing which households were excluded should change the next plan. Thus recovery feeds into better mitigation and preparedness rather than simply restoring the earlier vulnerability. In the six-stage lecture diagram, prevention and mitigation are shown separately, and rehabilitation/reconstruction are distinguished within recovery. The stages can overlap; an activity is classified by its purpose, not just its calendar date. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1C · Demonstrate in detail the application of GIS in 4 phases of Droughts Disaster Managem… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Demonstrate in detail the application of GIS in 4 phases of Droughts Disaster Management considering a case study example. [5 marks] #### Answer GIS links information to location, allowing drought indicators and affected people to be analysed together. Remote sensing supplies repeated observations; field verification is still needed. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Combine hazard indicators, exposure and resources to support decisions. 1. **Map rainfall deficits.** Compare rainfall with the local long-term pattern and map persistent deficits. For example, identify districts with deficient seasonal rainfall rather than applying one national rainfall threshold. 2. **Observe soil and vegetation.** Use soil-moisture information and vegetation indicators to locate crop stress. Ground observations help separate drought stress from disease, land-use change or poor data. 3. **Map available water.** Locate reservoirs, wells, streams and supply systems and track their condition. Overlay settlements to identify people far from reliable drinking-water sources. 4. **Assess vulnerability.** Combine rain-fed cultivation, livestock, poverty and access data with hazard indicators. Two equally dry areas can need different support because livelihood and service conditions differ. 5. **Prioritise and monitor action.** Select recharge, supply and livelihood interventions and map their progress. For example, direct emergency water to poorly served settlements while planning long-term watershed work. 6. **Communicate limitations.** Show data dates, uncertainty and update schedules. A map supports judgement; it does not automatically prove a village has water or that an individual household received relief. Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle A drought develops slowly, but all stages still apply. 1. **Prevention and mitigation.** Reduce avoidable vulnerability through watershed conservation, suitable cropping, efficient water use and sustainable groundwater management. These do not prevent every rainfall deficit. 2. **Preparedness.** Monitor rainfall, storage and crop stress; plan water priorities, advisories, supply contingencies and livelihood support. 3. **Response.** Provide safe drinking water and urgent livelihood, fodder or health support according to assessed need; manage scarce resources fairly. 4. **Recovery.** Restore productive capacity and livelihoods, repair water systems and improve future planning. Review whether reconstruction and new demand would recreate the same water stress. ## How the cycle connects in one village Before a deficient monsoon, the village improves storage and water-use efficiency: this is mitigation. When monitoring shows a deficit, authorities activate a prepared priority-supply plan: this is preparedness. During severe shortage, safe drinking-water supply and targeted livelihood assistance are response. After conditions improve, repairing sources and restoring livelihoods are recovery. Reviewing which households were excluded should change the next plan. Thus recovery feeds into better mitigation and preparedness rather than simply restoring the earlier vulnerability. In the six-stage lecture diagram, prevention and mitigation are shown separately, and rehabilitation/reconstruction are distinguished within recovery. The stages can overlap; an activity is classified by its purpose, not just its calendar date. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q1D · Elaborate in detail classification “Uttarakhand Floods - 2005” on basis of Legal boun… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Elaborate in detail classification “Uttarakhand Floods - 2005” on basis of Legal boundaries. Also elaborate types of legal boundaries. [5 marks] #### Answer The major Uttarakhand disaster studied in these notes occurred in **June 2013**. A paper prints “2005”; do not memorise that as the date of the 2013 Kedarnath disaster. **Chain:** natural hydrometeorological trigger → flooding/debris flows and landslides → water, land, infrastructure and society affected → regional/state disaster with wider national consequences and support. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q2A · Discuss in detail any 5 considerations to be taken into account while designing an Aw… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Discuss in detail any 5 considerations to be taken into account while designing an Awareness Program for Fire Outbreak Preparedness. [10 marks] #### Answer A fire training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain smoke/fire alarm and the source of authorised updates. 4. **State protective actions.** Teach marked stairs and exits; never lifts. 5. **Assign responsibilities.** Identify fire wardens and fire services and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2B · Explain in detail 5 types of adverse effect of Disasters citing relevant examples of … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Explain in detail 5 types of adverse effect of Disasters citing relevant examples of disaster caused by each. [10 marks] #### Answer 1. **Human impacts.** Deaths, injuries, displacement and psychological distress affect individuals and communities; a building collapse illustrates immediate injury risk. 2. **Physical damage.** Homes, schools, hospitals, roads and lifelines may be damaged, interrupting services. 3. **Economic and livelihood loss.** Asset damage and disrupted production, trade and employment can create prolonged hardship after flooding. 4. **Social disruption.** Education, family networks, care arrangements and community institutions may be interrupted, with unequal effects across groups. 5. **Environmental harm.** Pollution, erosion, habitat damage and hazardous debris can affect water, soil and ecosystems and create secondary risks. ## Connect every effect to an example | Effect | Illustrative disaster example | | --- | --- | | Human | A major earthquake can injure occupants of collapsed buildings and displace families needing shelter and support. | | Physical | Floodwater can damage a power substation, interrupting electricity to otherwise undamaged neighbourhoods. | | Economic | Drought can reduce farm output and wages, affecting food access and debt long after the rainfall deficit begins. | | Social | A cyclone that damages schools and separates households can interrupt education, care and community support networks. | | Environmental | An oil spill can contaminate shorelines and habitats, while also harming fishing livelihoods. | These categories interact: physical damage to a bridge may interrupt school access and trade, producing social and economic effects. Some losses are direct, such as a destroyed house; others are indirect, such as lost income from prolonged transport disruption. Describe the causal connection rather than listing the category alone. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q3A · Illustrate with neat sketch any 2 types of Landslides and their specific mitigation m… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Illustrate with neat sketch any 2 types of Landslides and their specific mitigation measures. Also explain the same in detail. [10 marks] #### Answer **Definition.** A landslide is downward movement of rock, debris or earth under gravity. Its movement may be falling, toppling, sliding, spreading or flowing. | Type | Movement | Illustration | | --- | --- | --- | | Fall | Material detaches and falls through air. | Rockfall from a steep cliff. | | Topple | A block rotates forward around a pivot or base. | Jointed rock columns lean and overturn. | | Slide | Material moves along a recognisable slip surface. | Rotational slide on a curved surface or translational slide on a plane. | | Flow | Material deforms and moves like a flowing mass. | Water-saturated debris flow. | | Spread | Extension and lateral movement, sometimes over a weak layer. | Ground spreading associated with liquefaction. | ## Why a slope becomes unstable 1. Rain infiltration raises pore-water pressure and can reduce effective resistance. 2. River erosion or road cutting removes support at the slope toe. 3. Earthquake shaking adds destabilising forces. 4. Weak or weathered rock and unfavourably oriented joints create possible failure surfaces. 5. Deforestation, added loads, excavation and poor drainage can increase susceptibility. Cracks, tilting trees or poles, new seepage and small falls can indicate instability, but no single sign reliably predicts every landslide. Report suspected movement and follow local evacuation advice; do not enter an active slide to investigate. ## Mitigation matched to mechanism **Rotational slide:** investigate the curved slip surface, reduce infiltration, manage loading and toe support and restrict unsafe development. **Topple:** investigate fractured blocks, control water and use suitable specialist anchoring/support or exclusion and catch measures. The same retaining wall is not a universal solution for both. Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. A curved slip surface indicates rotation; forward block rotation indicates toppling. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q3B · State and elaborate in brief any 5 Do’s and Don’ts for individual response during Fla… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. State and elaborate in brief any 5 Do’s and Don’ts for individual response during Flash Floods. [10 marks] #### Answer ## Five dos and five don’ts for flood response | Do — action and reason | Do not — unsafe action and reason | | --- | --- | | Act on official warnings and use designated safe ground; flood conditions can change quickly. | Do not wait beside a river, shore, drain or underpass to watch water rise. | | Use an assessed safe route and arrange assistance for people who need it. | Do not walk, swim or drive through floodwater; currents and hidden damage are difficult to judge. | | Carry essential medicines and communication items if doing so does not delay escape. | Do not return for replaceable belongings once the route is unsafe. | | Report stranded people and electricity hazards to trained services from a safe location. | Do not touch fallen wires or attempt an untrained water rescue. | | Follow verified updates and return only after clearance; water can remain contaminated. | Do not assume receding water means buildings, roads or drinking-water supplies are safe. | For coastal flooding, move beyond the mapped inundation area to designated safe inland or high-ground locations. For flash flooding, act promptly because warning time may be very short. The route must be safe for the actual hazard, not merely the shortest route. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q4A · Analysing the case study of “Indian Ocean Tsunami”, elaborate in detail how Warning s… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Analysing the case study of “Indian Ocean Tsunami”, elaborate in detail how Warning systems and Drone Technology can be adopted for such Disaster Management Preparedness and Response citing relevant examples. [10 marks] #### Answer 1. **Event and setting:** On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. 2. **Causes and vulnerability:** Seafloor displacement generated waves; exposed coastal settlements and limited warning readiness increased losses. 3. **Impacts:** Coastal inundation, housing and livelihood destruction and disruption across several countries, including India. 4. **Response and recovery:** Rescue, shelter and livelihood rehabilitation; India subsequently strengthened tsunami monitoring and warning through INCOIS/ITEWC. 5. **Lessons:** Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. ## Four measures to reduce future losses 1. **Monitoring and warning.** Connect seismic/ocean observations to actionable public alerts. 2. **Evacuation routes and drills.** Mark safe routes and destinations and include people needing assistance. 3. **Risk-informed siting.** Keep critical facilities and new vulnerable development outside mapped inundation zones. 4. **Resilient services and recovery.** Protect lifelines, prepare backups and rebuild with reduced exposure and better construction. These measures reduce disaster impacts; they cannot prevent the submarine earthquake or every tsunami. ## Warning and drones Seismic and ocean monitoring support official tsunami alerts; natural signs can require immediate evacuation without waiting. After impact, authorised drone observations can help map inundation, damaged access and stranded people when conditions allow. A drone cannot prevent a tsunami and is not a substitute for ocean-wide monitoring or last-mile evacuation. --- ## TEE · Q4B · Critically evaluate the five preparedness measures for mitigating the effects of cycl… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Critically evaluate the five preparedness measures for mitigating the effects of cyclones and tsunamis in coastal areas. [10 marks] #### Answer | Preparedness task | Cyclone application | Tsunami application | Critical condition | | --- | --- | --- | --- | | Warning and action triggers | Monitor official cyclone forecasts and evacuation advice. | Connect official alerts and recognised natural warning signs to prompt evacuation. | Tsunami lead time can be very short; never assume a cyclone-style multi-day warning. | | Routes and destinations | Plan movement to designated cyclone-safe shelters before severe conditions. | Practise routes to designated safe high ground or inland areas outside mapped inundation. | A nearby building is not automatically safe for either hazard. | | Assistance and transport | Arrange early movement for people needing help and support for visitors. | Practise immediate assisted movement along safe routes. | Transport availability and route bottlenecks must be tested. | | Supplies, communications and accountability | Prepare essential supplies, backups and shelter headcounts. | Prepare portable essentials without delaying escape and establish safe-area headcounts. | Equipment must be maintained and messages accessible. | | Coordinated drills and review | Test agencies, shelter staff and utility readiness. | Test evacuation, safe-area control and repeated-wave/all-clear procedures. | Review observed failures; one unassessed drill does not establish readiness. | #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q5A · State and elaborate in brief any 5 Do’s and Don’ts for response during Earthquakes. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. State and elaborate in brief any 5 Do’s and Don’ts for response during Earthquakes. [10 marks] #### Answer ## Five dos 1. **Drop, Cover and Hold On.** During shaking indoors, protect yourself under suitable sturdy cover and hold on; if cover is unavailable, protect your head and neck where you are. 2. **Stay clear of falling objects.** Keep away from windows, tall unsecured furniture and damaged partitions. 3. **If outdoors, seek open space.** Keep clear of buildings, trees, poles and wires without moving into another hazard. 4. **If driving, stop safely.** Pull over away from bridges, overpasses and wires where safe and remain in the vehicle until shaking stops. 5. **Move carefully after shaking.** When safe, use designated exits and stairs, expecting aftershocks and debris. ## Five don’ts 1. **Do not rush outside while shaking.** Falling glass and masonry can make exits and building edges dangerous. 2. **Do not use lifts.** Power loss or damage can trap occupants. 3. **Do not re-enter damaged buildings without clearance.** Aftershocks and hidden structural damage can cause collapse. 4. **Do not stand beside windows or unsecured tall furniture.** Glass, shelves and contents can fall during shaking. 5. **Do not touch fallen power lines or operate switches near a suspected gas leak.** Keep clear and report the hazard to trained emergency or utility teams; sparks can ignite leaking gas. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q5B · Explain how global climate change is linked to the increasing frequency and intensity… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Explain how global climate change is linked to the increasing frequency and intensity of Cyclones and Floods, elaborating with relevant example for each. [10 marks] #### Answer 1. **Anthropogenic greenhouse warming.** A warmer climate increases many heat extremes and changes the moisture available for heavy rain. For example, a higher temperature baseline makes an unusually hot period more likely to exceed a harmful heat threshold. This is a mechanism example, not attribution of a particular heat wave to one cause. 2. **Ocean and atmospheric variability.** Patterns such as El Niño redistribute heat and influence atmospheric circulation. For example, El Niño can contribute to deficient rainfall in some regions and heavy rainfall in others; it does not produce the same weather everywhere or guarantee an Indian drought. 3. **Land-use change.** Deforestation and sealed urban surfaces can alter local heat and runoff. For example, replacing vegetation with dark paving reduces shade and evaporative cooling, worsening local heat exposure. This local influence should not be confused with the global greenhouse driver. 4. **Persistent weather and local feedbacks.** Long-lived circulation patterns and feedbacks can sustain extremes. For example, a persistent high-pressure pattern can suppress rain and maintain heat; drying soil then reduces evaporative cooling and amplifies the hot conditions. Warmer oceans and atmospheric moisture can favour heavier tropical-cyclone rainfall and more intense storms under suitable conditions; sea-level rise raises the starting level for coastal inundation. This does not mean the number of cyclones increases everywhere. Heavy rain, storm surge, tides and vulnerable coastal development jointly determine flooding. Assess a particular event using evidence rather than attributing every impact solely to climate change. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q6A · Differentiate between preparedness and mitigation measures for Floods and Droughts. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Differentiate between preparedness and mitigation measures for Floods and Droughts. [10 marks] #### Answer | Hazard | Mitigation reduces likely losses | Preparedness builds readiness | | --- | --- | --- | | Flood | Protect floodplains/storage, maintain drainage and apply suitable resilient construction. | Map routes/shelters, link forecasts to alerts, ready teams and practise evacuation. | | Drought | Improve water efficiency, appropriate cropping, recharge and sustainable allocation. | Monitor deficits, set water priorities, prepare supply contingencies and livelihood support. | Some measures contribute to both. A warning system is primarily preparedness, while land-use control primarily reduces exposure. Explain the function rather than relying only on a memorised category. ## Explain the difference through two situations **Flood:** keeping a hospital outside a mapped floodway reduces its exposure even if no warning is received; this is mitigation. Preparing an accessible route, shelter and transport plan enables people to act on a warning; this is preparedness. Both are needed because a flood barrier may be overtopped and an unpractised evacuation plan may fail. **Drought:** efficient irrigation and suitable crops reduce long-term water demand and vulnerability, making them mitigation measures. Monitoring reservoir storage and agreeing when to activate priority drinking-water supply prepare authorities to act, making them preparedness. Emergency delivery of water after severe shortage is response. Mitigation asks “How can likely damage be reduced?”; preparedness asks “How will we act effectively when the threat develops?” #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q6B · Enlist and explain in brief any 8 General Principles adopted during Disaster Manageme… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Enlist and explain in brief any 8 General Principles adopted during Disaster Management. [10 marks] #### Answer Ethical principles protect life and dignity, improve trust and coordination and prevent unfair treatment or avoidable harm. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q7A · Draft the checklist of 10 precautions to be considered in responding to Cold Wave. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Draft the checklist of 10 precautions to be considered in responding to Cold Wave. [10 marks] #### Answer 1. **Follow cold-weather advisories.** Use reliable forecasts and prepare before the coldest period. 2. **Use warm dry shelter.** Avoid prolonged outdoor exposure where protection is inadequate. 3. **Wear suitable layers.** Protect the head, hands and feet and adapt layers to conditions. 4. **Replace wet clothing.** Wet conditions increase heat loss; remain dry where possible. 5. **Maintain food and fluids.** Support basic needs and follow relevant medical advice. 6. **Check on vulnerable people.** Arrange support for isolated older people, infants and people without secure shelter. 7. **Use heating safely.** Maintain ventilation and fire precautions. 8. **Avoid indoor combustion hazards.** Never burn charcoal or run a generator in an enclosed room. 9. **Recognise serious illness.** Confusion, unusual drowsiness or suspected hypothermia require urgent medical help. 10. **Use safe travel and communication.** Check access conditions, carry essentials and keep contact with others when necessary. #### Illustrative application · A city during a heat wave Outdoor workers, older adults and poorly ventilated homes may face different levels of risk during the same hot period. Heat warnings, access to cooling and adjusted work arrangements address vulnerability and exposure; they do not change the weather event itself. --- ## TEE · Q7B · Describe in brief any 5 key highlights and adverse effects of “Gujarat Earthquake - 2… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2024-12-10--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2024-12-10/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Describe in brief any 5 key highlights and adverse effects of “Gujarat Earthquake - 2001”. [10 marks] #### Answer 1. **Event and setting:** On 26 January 2001 a major earthquake struck the Kutch region of Gujarat. 2. **Causes and vulnerability:** Fault rupture caused strong shaking; vulnerable buildings and lifelines amplified losses. 3. **Impacts:** Building collapse, deaths and injuries, disrupted services and large housing and livelihood needs. 4. **Response and recovery:** Search and rescue, medical help and temporary shelter; longer-term reconstruction and institutional strengthening. 5. **Lessons:** Use seismic design and retrofitting, improve construction quality, protect lifelines, train communities, support owner/community participation and rebuild with risk reduction. #### Real programme · Gujarat earthquake recovery GSDMA’s reconstruction and mason-training programmes connect recovery with safer rebuilding. The principle is to improve construction capacity and resilience while restoring what was damaged, rather than simply reproduce the previous vulnerability. [Case reference ↗](https://www.gsdma.org/Content/masons-training-certification-programme-4223) Following the 26 January 2001 earthquake, Gujarat’s recovery programme linked reconstruction with longer-term risk reduction. Six relevant measures are: 1. **Institutional strengthening.** GSDMA was established in February 2001 to coordinate reconstruction and develop preparedness and mitigation capacity. 2. **Safer housing repair and reconstruction.** The programme repaired and rebuilt damaged homes; risk reduction requires appropriate earthquake-resistant design and construction quality rather than simple replacement. 3. **Restoration of critical public facilities.** Schools, hospitals, water systems and other public assets were repaired or reconstructed to restore essential functions and improve safety. 4. **Town planning and access.** Reconstruction in affected towns included improved roads, planned open spaces and services, supporting evacuation and future emergency access. 5. **Training construction workers.** Training and certification of masons and capacity building for engineers promoted earthquake-resistant construction practices. 6. **Community preparedness and long-term systems.** Multi-hazard preparedness, community participation and strengthened emergency-management institutions connected recovery to future resilience. --- ## TEE · Q1A · Discuss in detail the difference between Risk and Hazard citing relevant examples. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Discuss in detail the difference between Risk and Hazard citing relevant examples. [5 marks] #### Answer | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | **Definition.** A hazard is a potentially harmful process, phenomenon or human activity. A disaster is a serious disruption of a community caused when hazardous events interact with exposure, vulnerability and limited capacity. ## One example, from cause to consequence Heavy rain is a hazard. People living beside an overflowing drain are exposed. Weak houses and blocked drainage increase vulnerability. Rescue boats, warnings and safe shelters increase capacity. If flooding seriously disrupts lives, services and livelihoods, the event becomes a disaster. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. A hazard becomes a disaster through its interaction with exposed, vulnerable people and assets. Capacity changes the outcome. | Term | Meaning | Flood example | | --- | --- | --- | | Hazard | What can cause harm? | Heavy rainfall / high river flow | | Exposure | Who or what is in the affected place? | Homes beside the river | | Vulnerability | Why can those exposed suffer damage? | Weak houses; limited mobility; poor drainage | | Capacity | What strengths help manage the threat? | Warnings, shelters, trained rescue teams | | Disaster risk | Potential losses before the event occurs | Possible deaths, damage and disruption | | Disaster | Serious disruption when the event occurs | Homes inundated and essential services overwhelmed | #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · Elaborate any five don’ts for response during the Tsunami Disaster. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. Elaborate any five don’ts for response during the Tsunami Disaster. [5 marks] #### Answer | Do | Do not | | --- | --- | | Move promptly to designated safe high ground or inland on official or natural warning. | Do not go to the shore to watch unusual sea behaviour. | | Learn and practise evacuation routes before an event. | Do not wait for a phone alert after strong/long coastal shaking if natural warning demands immediate action. | | Assist others along safe routes without entering danger. | Do not assume ordinary buildings or parked cars provide suitable tsunami protection. | | Stay in the safe area and monitor verified advice. | Do not return after the first wave; more waves may follow. | | Return only after official clearance and avoid damaged services. | Do not enter debris-filled water or unstable buildings. | A tsunami is a series of waves. Natural signs can include strong or long coastal shaking, sudden unusual sea-level change or a loud ocean roar; not every tsunami displays every sign at every location. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q1C · Explain in brief any five mitigation measures adopted for Earthquake Disaster Managem… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Explain in brief any five mitigation measures adopted for Earthquake Disaster Management. [5 marks] #### Answer **Definition.** Earthquake risk reduction combines safe construction, non-structural safety, preparedness and coordinated response. Precise earthquake prediction is not a dependable safety strategy. ## Before shaking - Get qualified assessment of vulnerable structures; retrofit where needed and enforce safe design. - Secure shelves, cylinders and heavy objects; keep heavy items low. - Prepare a family communication plan, emergency kit and accessible evacuation arrangements. Practise Drop, Cover and Hold On. ## During shaking Indoors, **Drop, Cover and Hold On**: get low, protect your head and neck under sturdy cover where possible, and hold on. Keep away from glass. Do not rush towards stairs or lifts while the building is shaking. Outdoors, move away from buildings and overhead lines if safe. In a vehicle, stop in a safe clear place away from bridges and hazards and remain inside until shaking stops. ## After shaking Expect aftershocks. Leave a damaged building by a safe route when shaking stops; do not use lifts or re-enter until cleared. Avoid damaged utilities and flames near suspected gas leaks. Follow official information. On a threatened coast, strong or long shaking is a reason to follow tsunami evacuation procedures without waiting at the beach. ## Agency responsibilities 1. **Response:** rapid assessment, search and rescue, emergency care, firefighting, accessible shelter, communication and restoration of critical services. 2. **Recovery:** inspect and repair lifelines, restore housing and livelihoods, support mental health, and document damage. 3. **Mitigation:** revise unsafe siting and strengthen critical buildings rather than reproduce previous weaknesses. ## Cordon-off zones A cordon is a controlled boundary around a dangerous site. Authorities assess hazards, mark the perimeter, create controlled access points, communicate restrictions and keep responder routes clear. Exclusion zones keep the public away from high danger; restricted zones permit specified authorised tasks; safe assembly areas provide refuge. Distances depend on the incident. Do not treat “gold, silver and bronze” as universal fixed-distance hazard rings: those terms are also used for command levels. Earthquake early warning detects a rupture that has already begun and may warn some locations before strong shaking arrives. It is not a prediction of an earthquake days in advance, and nearby locations may receive little or no useful warning. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q1D · Discuss in detail the significance and benefits of Training and Drills for Disaster P… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Discuss in detail the significance and benefits of Training and Drills for Disaster Preparedness for Oil Spills Accident. [5 marks] #### Answer ## Need 1. **Convert knowledge into action.** People may know an alarm exists but still not know which exit or assembly point to use. Training explains the procedure; a drill rehearses it. 2. **Reduce confusion.** Assigned roles and rehearsed communication reduce duplicated work and missed responsibilities. 3. **Identify weaknesses.** A drill can reveal blocked exits, inaudible alarms, inaccessible routes and inaccurate contact lists. 4. **Include all occupants.** Visitors and people needing assistance must be included in plans rather than assumed to evacuate independently. ## Objectives 1. **Practise safe behaviour.** Participants recognise the warning and follow the correct protective procedure. 2. **Test coordination and accountability.** Wardens, emergency services and occupants communicate and account for people at the assembly point. 3. **Improve the plan.** Observers record delays and gaps; organisers assign corrections and repeat the exercise to verify improvement. For an oil-spill scenario, training covers reporting, exclusion zones, ignition hazards, suitable PPE for trained workers and coordination with specialist containment/cleanup teams. A drill tests notifications, access, equipment readiness and protection of sensitive areas without releasing real oil. Unsafe improvisation can spread contamination or expose workers. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2A · Explain in detail with respect to its causes and stages of Disaster management the ca… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Explain in detail with respect to its causes and stages of Disaster management the case study of “Tsunami in Indian Ocean, 2004”. [10 marks] #### Answer 1. **Event and setting:** On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. 2. **Causes and vulnerability:** Seafloor displacement generated waves; exposed coastal settlements and limited warning readiness increased losses. 3. **Impacts:** Coastal inundation, housing and livelihood destruction and disruption across several countries, including India. 4. **Response and recovery:** Rescue, shelter and livelihood rehabilitation; India subsequently strengthened tsunami monitoring and warning through INCOIS/ITEWC. 5. **Lessons:** Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. ## Four measures to reduce future losses 1. **Monitoring and warning.** Connect seismic/ocean observations to actionable public alerts. 2. **Evacuation routes and drills.** Mark safe routes and destinations and include people needing assistance. 3. **Risk-informed siting.** Keep critical facilities and new vulnerable development outside mapped inundation zones. 4. **Resilient services and recovery.** Protect lifelines, prepare backups and rebuild with reduced exposure and better construction. These measures reduce disaster impacts; they cannot prevent the submarine earthquake or every tsunami. --- ## TEE · Q2B · Compare in detail Do’s and Don’ts for Earthquake and Tsunami Disasters. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Compare in detail Do’s and Don’ts for Earthquake and Tsunami Disasters. [10 marks] #### Answer ## Five dos 1. **Drop, Cover and Hold On.** During shaking indoors, protect yourself under suitable sturdy cover and hold on; if cover is unavailable, protect your head and neck where you are. 2. **Stay clear of falling objects.** Keep away from windows, tall unsecured furniture and damaged partitions. 3. **If outdoors, seek open space.** Keep clear of buildings, trees, poles and wires without moving into another hazard. 4. **If driving, stop safely.** Pull over away from bridges, overpasses and wires where safe and remain in the vehicle until shaking stops. 5. **Move carefully after shaking.** When safe, use designated exits and stairs, expecting aftershocks and debris. ## Five don’ts 1. **Do not rush outside while shaking.** Falling glass and masonry can make exits and building edges dangerous. 2. **Do not use lifts.** Power loss or damage can trap occupants. 3. **Do not re-enter damaged buildings without clearance.** Aftershocks and hidden structural damage can cause collapse. 4. **Do not stand beside windows or unsecured tall furniture.** Glass, shelves and contents can fall during shaking. 5. **Do not touch fallen power lines or operate switches near a suspected gas leak.** Keep clear and report the hazard to trained emergency or utility teams; sparks can ignite leaking gas. ## Tsunami actions | Do | Do not | | --- | --- | | Move promptly to designated safe high ground or inland on official or natural warning. | Do not go to the shore to watch unusual sea behaviour. | | Learn and practise evacuation routes before an event. | Do not wait for a phone alert after strong/long coastal shaking if natural warning demands immediate action. | | Assist others along safe routes without entering danger. | Do not assume ordinary buildings or parked cars provide suitable tsunami protection. | | Stay in the safe area and monitor verified advice. | Do not return after the first wave; more waves may follow. | | Return only after official clearance and avoid damaged services. | Do not enter debris-filled water or unstable buildings. | A tsunami is a series of waves. Natural signs can include strong or long coastal shaking, sudden unusual sea-level change or a loud ocean roar; not every tsunami displays every sign at every location. Key difference: protect in place from falling objects during earthquake shaking, then act on coastal tsunami danger as soon as safe. Do not apply “remain indoors” to an exposed low-lying coastal area after a tsunami warning. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q3A · Discuss in detail with neat sketch formation of Cyclone and elaborate in detail each … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Discuss in detail with neat sketch formation of Cyclone and elaborate in detail each component of Cyclone. [10 marks] #### Answer **Definition.** A cyclone is an atmospheric circulation around a low-pressure centre. A tropical cyclone is an organised rotating storm over warm tropical or subtropical waters, with strong winds, rain and potentially storm surge. Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Warm moist air feeds the storm. The eyewall surrounds the relatively calm eye in a mature intense tropical cyclone. 1. Warm ocean water supplies moisture and energy by evaporation. Typical favourable sea-surface temperatures are around 26–27°C or higher over adequate depth. 2. Warm moist air rises; condensation releases latent heat, supporting further rising motion. 3. Air flows towards the low-pressure centre. Earth’s rotation helps organise the circulation; systems do not usually form right at the equator. 4. With favourable conditions such as sufficient moisture and limited disruptive vertical wind shear, the system organises and intensifies. 5. A mature system may develop an eye surrounded by an eyewall. It weakens when it loses favourable ocean energy or encounters hostile atmospheric conditions. | Part | Meaning | | --- | --- | | Eye | Relatively calm central region with descending air in a well-developed cyclone. | | Eyewall | Ring of intense convection; strongest winds and heavy rainfall are commonly found here. | | Rainbands | Spiral bands of clouds and rain around the centre. | | Track | The path followed by the storm; forecasts have uncertainty. | **Definition.** The principal tropical-cyclone hazards are strong winds, heavy rainfall and storm surge. Their combined effects can create cascading damage. | Hazard | Mechanism | Damage | | --- | --- | --- | | Wind | Strong pressure gradients drive fast winds. | Roof damage, flying debris, fallen trees and power lines. | | Rain | Intense rainfall produces runoff. | River/urban flooding and landslides. | | Storm surge | Wind pushes sea water towards shore; low pressure adds a smaller contribution. | Coastal inundation, saltwater intrusion and erosion. | **Storm tide** combines astronomical tide and storm surge; waves and river flooding can compound impacts further. A tsunami is a different process, usually generated by sudden displacement of the water column. ## Names and classifications without mixing systems Hurricane is the regional name used in the Atlantic and northeast Pacific; typhoon in the northwest Pacific; tropical cyclone or cyclonic storm is used in the Indian Ocean context. A tornado is a small-scale rotating column connected to a thunderstorm and is **not** a South American synonym for tropical cyclone. A mesocyclone is a rotating thunderstorm updraft. Polar and extratropical cyclones occur in different environments and should not be described as identical warm-ocean systems. In the Northern Hemisphere, cyclonic circulation is anticlockwise; in the Southern Hemisphere, clockwise. India’s Bay of Bengal and Arabian Sea coasts both face serious cyclone risk. Not every Indian cyclone is moderate. ## Wind categories need their own units and definitions The PPT shows both a Saffir–Simpson hurricane image and a gust-based five-category table. They are not interchangeable with IMD’s North Indian Ocean classification. Use the named system supplied in a question; do not mix gust speed with sustained wind speed. The key M2 concepts are formation, hazards, warnings and mitigation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q3B · Elaborate citing any five suitable examples how new advanced technologies can be adop… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. Elaborate citing any five suitable examples how new advanced technologies can be adopted in disaster management. [10 marks] #### Answer 1. **GIS.** Overlay hazard, exposure and resource maps to support evacuation and allocation decisions. 2. **Remote sensing.** Use satellite observations to map flood extent, land-cover change or drought indicators; field verification remains necessary. 3. **Sensors and telemetry.** Rain gauges, river gauges, seismic stations and ocean instruments transmit observations for monitoring and warning. 4. **Drones.** Where authorised and safe, inspect inaccessible areas and support damage or search reconnaissance. Weather, flight restrictions, privacy and limited endurance matter. 5. **Models and decision support.** Forecast and scenario models, including appropriately validated AI tools, can support prioritisation. Explain uncertainty, check data and keep responsible human judgement. Technology is useful only when it supports a decision and reaches the people who must act. A dashboard alone does not provide evacuation transport or a safe shelter. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. --- ## TEE · Q4A · Explain in detail the role of GIS in effective Disaster management for Landslides. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Explain in detail the role of GIS in effective Disaster management for Landslides. [10 marks] #### Answer For landslide management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine slope, geology, drainage, land cover and past failures to map susceptibility and guide development controls. 2. **Preparedness.** Map rainfall thresholds, monitoring points, settlements and safe routes; practise road closures and evacuation. 3. **Response.** Update slide extent and blocked roads; identify isolated communities and safe team access using verified reports. 4. **Recovery.** Assess damaged land and infrastructure, select safer reconstruction sites and monitor slope stabilisation and drainage repairs. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q4B · Explain in detail with respect to its causes and stages of Disaster management the ca… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Explain in detail with respect to its causes and stages of Disaster management the case study of “Nisarg Cyclone”. [10 marks] #### Answer 1. **Event and setting:** Cyclone Nisarga made landfall near the Maharashtra coast on 3 June 2020. 2. **Causes and vulnerability:** A tropical cyclone brought strong winds and rain to exposed coastal settlements and infrastructure. 3. **Impacts:** Damage to roofs, trees, power networks and livelihoods; rain and access problems complicated response. 4. **Response and recovery:** Official forecasting and warnings supported protective preparations and evacuation; agencies then assessed damage and restored essential services. 5. **Lessons:** Translate forecasts into local action using mass communication plus last-mile outreach; prepare shelters, protect lifelines and support recovery. Distinguish what authorities should do from a claim that each particular action is documented. #### Real case and learning connection · Cyclone Nisarga, 2020 Nisarga provides a Maharashtra coastal-cyclone example. The lesson is to consider wind, rain and coastal exposure together, and connect forecasts to protective action. Its year is 2020; do not reproduce the incorrect 2021 date found in some question wording. **Definition.** Cyclone warnings provide advance information on likely coastal effects, allowing authorities and communities to prepare, evacuate and protect essential services. | Stage | Usual lead time in the lecture | What it supports | | --- | --- | --- | | Pre-cyclone watch | About 72 hours before adverse weather | Initial readiness and review of plans. | | Cyclone alert | About 48 hours before adverse weather | Mobilise resources, shelters and evacuation arrangements. | | Cyclone warning | About 24 hours before adverse weather | Implement protective action based on the latest official advice. | | Post-landfall outlook | About 12 hours before landfall | Prepare inland areas for expected track and adverse weather after landfall. | The name **post-landfall outlook** describes the period forecast, not the time at which it is issued. Its 12-hour lead is before landfall. Forecasts can be updated as the storm develops. Cyclones can be forecast days ahead, with uncertainty; the claim that advance forecasts are impossible is incorrect. ## Before impact Follow official warnings; move from unsafe coastal areas to designated shelters when instructed. Arrange transport for people needing assistance, carry essential medicines and documents, secure loose objects, and prepare backup lighting and communication. Fishermen should follow official sea warnings. ## During and after Remain in a safe shelter away from glass, avoid travel and floodwater, and follow official instructions. A temporary calm may be the eye; it does not mean the storm is over. Wait for official clearance before returning; avoid damaged structures, lines and contaminated water. 1. **Warning and last-mile communication.** Use official forecasts, clear action messages and several communication channels. A forecast must reach fishers, visitors and people without smartphones, with enough time and support to act. 2. **Shelters and evacuation access.** Provide accessible shelters outside surge and flood zones, linked by reliable routes. Practise transport, headcounts and support for people needing assistance so that shelter capacity becomes usable protection. 3. **Resilient buildings and lifelines.** Strengthen roof connections and protect power, water and communication systems to appropriate standards. Hospitals require backup services and protected equipment to keep functioning during response. 4. **Risk-informed coastal land use.** Use surge and flood maps to control exposed development and locate critical infrastructure safely. Protect mangroves and appropriate coastal vegetation as part of a wider protection system, not a guaranteed barrier against every surge. ## Apply the management stages to this case | Stage | Case-based application — not an action-by-action historical log | | --- | --- | | Mitigation | Reduce wind and flood vulnerability through suitable construction, drainage, safer siting and protected lifelines. | | Preparedness | Use forecast information, official alerts, evacuation arrangements, shelters and trained personnel before landfall. | | Response | Protect life, restrict dangerous areas, coordinate trained rescue and provide urgent care and essentials. | | Recovery | Restore services and livelihoods, assess damage and rebuild with reduced vulnerability. | Nisarga formed through tropical-cyclone processes over the Arabian Sea: warm ocean water, moisture, favourable circulation and sufficiently low disruptive vertical wind shear supported organisation. The detailed formation diagram explains these processes; do not attribute a particular loss solely to one factor without evidence. **Definition.** A cyclone is an atmospheric circulation around a low-pressure centre. A tropical cyclone is an organised rotating storm over warm tropical or subtropical waters, with strong winds, rain and potentially storm surge. Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Warm moist air feeds the storm. The eyewall surrounds the relatively calm eye in a mature intense tropical cyclone. 1. Warm ocean water supplies moisture and energy by evaporation. Typical favourable sea-surface temperatures are around 26–27°C or higher over adequate depth. 2. Warm moist air rises; condensation releases latent heat, supporting further rising motion. 3. Air flows towards the low-pressure centre. Earth’s rotation helps organise the circulation; systems do not usually form right at the equator. 4. With favourable conditions such as sufficient moisture and limited disruptive vertical wind shear, the system organises and intensifies. 5. A mature system may develop an eye surrounded by an eyewall. It weakens when it loses favourable ocean energy or encounters hostile atmospheric conditions. | Part | Meaning | | --- | --- | | Eye | Relatively calm central region with descending air in a well-developed cyclone. | | Eyewall | Ring of intense convection; strongest winds and heavy rainfall are commonly found here. | | Rainbands | Spiral bands of clouds and rain around the centre. | | Track | The path followed by the storm; forecasts have uncertainty. | --- ## TEE · Q5A · Discuss in detail Classification of Disaster on basis of Occurrence and on basis of l… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. Discuss in detail Classification of Disaster on basis of Occurrence and on basis of legal boundaries citing suitable example. [10 marks] #### Answer **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q5B · Discuss in detail the cause, effects and mitigation measures for Droughts. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Discuss in detail the cause, effects and mitigation measures for Droughts. [10 marks] #### Answer **Definition.** Drought is an abnormal period of water deficiency relative to a region’s needs and usual conditions. It develops through rainfall, soil moisture, water storage and demand—not simply one hot day. | Type | Meaning | Example | | --- | --- | --- | | Meteorological | Precipitation is substantially below the normal pattern over a relevant period. | A poor monsoon. | | Agricultural | Soil moisture is insufficient for crop requirements at a growth stage. | A long dry spell during crop flowering. | | Hydrological | Reduced streamflow, reservoir storage or groundwater. | Low reservoir levels after successive deficient seasons. | | Socio-economic | Water shortage disrupts supply of goods or services relative to demand. | Insufficient water for drinking, irrigation and industry. | ## Why impacts vary Rainfall deficit is a trigger; high evaporation, water-intensive demand, depleted aquifers and poor storage can intensify shortages. Rain-fed farmers, livestock-dependent households and people with limited savings may be especially vulnerable. Agricultural drought can develop before large reservoirs become depleted; hydrological impacts can persist after rainfall improves. 1. **Conserve rainfall and restore watersheds.** Use suitable rainwater harvesting, contour measures and recharge work. Site-specific geology and maintenance determine whether water can be stored or recharge groundwater effectively. 2. **Use water efficiently.** Repair leaks, use appropriate irrigation scheduling and adopt efficient systems where suitable. Saving water at one point should be reflected in an overall water budget rather than expansion that cancels the saving. 3. **Plan crops and livelihoods.** Choose crops and sowing decisions suited to local water availability; diversify income where feasible. This reduces dependence on a single water-intensive crop or season. 4. **Monitor shortages and manage demand.** Track rainfall deficits, soil moisture, reservoir levels and groundwater. Prioritise drinking water, protect essential services and agree fair allocation before supplies become critical. 5. **Prepare community support.** Communicate advisories, arrange safe emergency drinking-water supply and fodder, and support vulnerable livelihoods. Emergency relief addresses immediate suffering while long-term measures reduce the next drought’s impacts. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q6A · Discuss in detail the significance of Mitigation in Disaster Management and elaborate… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Discuss in detail the significance of Mitigation in Disaster Management and elaborate any five mitigation measures to be adopted for Forest Fires. [10 marks] #### Answer ## Why mitigation matters 1. **Protect life.** Safer buildings, routes and protective actions reduce deaths and injuries. 2. **Reduce physical losses.** Appropriate construction and siting reduce damage to property and infrastructure. 3. **Protect essential services.** Resilient hospitals, water and communication systems support response and continuity. 4. **Reduce secondary hazards.** Industrial safeguards and stable infrastructure can prevent fires, leaks and cascading failures. 5. **Protect livelihoods.** Resilient assets, diversified income and continuity plans reduce long-term hardship. ## Five forest-fire measures 1. **Reduce preventable ignition.** Control careless burning and equipment hazards through appropriate rules, maintenance and awareness. 2. **Manage fuel and firebreaks professionally.** Use locally appropriate, ecologically informed treatment by competent authorities; untrained burning creates additional danger. 3. **Detect fires early.** Link patrols, reports and appropriate remote observations to verified alerts and prompt assessment. 4. **Prepare people and response access.** Identify threatened settlements, safe routes, trained teams and communication backups. 5. **Protect and restore ecosystems.** Manage degraded areas and post-fire risks such as erosion; recovery planning should reduce repeated vulnerability. #### Illustrative application · Fire near a settlement Dry vegetation, an ignition source and wind can allow a fire to spread towards homes. Fuel management and safer development concern mitigation; official warnings and evacuation plans concern preparedness and response. People should follow trained services, not improvise dangerous firefighting. --- ## TEE · Q6B · Demonstrate how GIS can be suitably adopted for Flash Floods Disaster Management. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Demonstrate how GIS can be suitably adopted for Flash Floods Disaster Management. [10 marks] #### Answer For river flood management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Overlay flood extent/depth, terrain and development to support floodplain zoning, storage planning and protection of critical facilities. 2. **Preparedness.** Map forecasts, vulnerable settlements, shelters and alternate evacuation routes; rehearse responses to road and bridge closures. 3. **Response.** Update inundation and accessibility maps, locate stranded people and allocate boats, supplies and medical teams using verified field reports. 4. **Recovery.** Map damage and losses, track restoration of roads and water supply, prioritise rebuilding and check that reconstructed assets are less exposed. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q7A · Explain in detail classification types for the case study of “Bhopal Gas Accident”. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Explain in detail classification types for the case study of “Bhopal Gas Accident”. [10 marks] #### Answer **Classification chain:** human-induced → industrial chemical release → primarily air contamination and human exposure → local/regional impact with wider national consequences. The lecture labels the regional/state category “domicile”. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. --- ## TEE · Q7B · Create a checklist of any 10 Do’s to avoid Industrial Chemical Accidents citing relev… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-12-04--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-12-04/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Create a checklist of any 10 Do’s to avoid Industrial Chemical Accidents citing relevant examples. [10 marks] #### Answer 1. **Inventory chemicals.** Know substances, quantities and relevant hazards. 2. **Assess credible scenarios.** Examine leaks, fire, incompatible mixing and likely off-site impacts. 3. **Use sound engineering.** Provide suitable containment, ventilation and safety systems. 4. **Maintain and inspect.** Find defects before failure and record corrective action. 5. **Follow operating procedures.** Control startup, shutdown, isolation and hazardous work. 6. **Train competent workers.** Ensure staff understand alarms, roles and safe reporting. 7. **Detect and warn.** Maintain appropriate monitoring, alarms and backup communication. 8. **Prepare response arrangements.** Coordinate safe protective action and specialised resources. 9. **Coordinate off-site support.** Connect the industry with authorities, hospitals and surrounding communities. 10. **Audit and learn.** Investigate near misses and incidents, update plans and correct systemic weaknesses. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. --- ## TEE · Q1A · Discuss in detail with relevant examples types of Disasters on basis of Cause of Disa… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Discuss in detail with relevant examples types of Disasters on basis of Cause of Disaster. [5 marks] #### Answer | Hazard group | Explanation | Typical disaster | | --- | --- | --- | | Geological | Processes of the solid Earth, such as fault rupture or slope failure. | An earthquake or landslide disaster. | | Hydrometeorological | Water and weather processes such as intense rain, river flow or cyclone winds. | River flooding or a cyclone disaster. | | Biological | Pathogens or biological agents affecting populations. | An epidemic. | | Technological | Failures or hazardous releases involving industrial or engineered systems. | Bhopal industrial gas disaster. | | Environmental | Degradation or pollution that harms ecosystems and can increase other risks. | Severe toxic contamination affecting water, livelihoods and health. | Categories can overlap and trigger cascading impacts. For example, an earthquake is geological, but a resulting industrial release is a secondary technological hazard. A disaster is produced by the interaction between the trigger and exposure, vulnerability and capacity. Consequently, “natural cause” describes the trigger but does not mean unsafe construction, exclusion or poor planning had no part in the losses. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · Discuss in detail the need, significance and benefits of Mitigation Measures for Disa… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. Discuss in detail the need, significance and benefits of Mitigation Measures for Disaster Management. [5 marks] #### Answer Mitigation means reducing the adverse impacts of hazards. It combines structural measures, planning, ecosystem management and institutional action; it cannot guarantee zero loss. 1. **Protect life.** Safer buildings, routes and protective actions reduce deaths and injuries. 2. **Reduce physical losses.** Appropriate construction and siting reduce damage to property and infrastructure. 3. **Protect essential services.** Resilient hospitals, water and communication systems support response and continuity. 4. **Reduce secondary hazards.** Industrial safeguards and stable infrastructure can prevent fires, leaks and cascading failures. 5. **Protect livelihoods.** Resilient assets, diversified income and continuity plans reduce long-term hardship. 6. **Support fairness.** Accessible warnings and assistance reduce the unequal burden on vulnerable groups. 7. **Improve readiness.** Mapping and planning make roles, resources and priority areas clear. 8. **Use resources better.** Preventive investment can reduce avoidable future response and rebuilding needs; benefits depend on the project. 9. **Speed recovery.** Less damage and functioning services help communities restore daily life. 10. **Support sustainable development.** Risk-informed land use avoids creating new exposure through unsafe growth. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1C · Elaborate in brief any 5 measures that can be adopted to avoid flooding of Rivers. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Elaborate in brief any 5 measures that can be adopted to avoid flooding of Rivers. [5 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Four complementary flood-risk measures](https://deep-learning-study-room.vercel.app/dm/fig/flood-measures.8571e23804.svg) Diagram: Four complementary flood-risk measures. Labels: Four complementary flood-risk measures | Four complementary flood-risk measures | 1 · Storage | Wetlands and detention hold water and reduce | a peak. | 2 · Drainage | Maintain flow paths, culverts and outfalls. | 3 · Land-use control | Keep vulnerable development outside mapped | floodways. | 4 · Warning and evacuation | Move people on safe routes while access | remains usable. | floodway | safe site | people | shelter Risk reduction combines storage, protected land use, maintained conveyance and safe evacuation. 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. 5. **Combine protection with warning and preparedness.** Appropriately designed embankments or levees protect selected areas, but can overtop or fail. Maintain them, issue actionable forecasts, mark escape routes and provide safe shelters for the remaining risk. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q1D · Discuss in detail the three causes resulting in earthquakes with neat sketches. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Discuss in detail the three causes resulting in earthquakes with neat sketches. [5 marks] #### Answer **Definition.** An earthquake is ground shaking caused by a sudden release of stored energy in the Earth. Most destructive earthquakes result from sudden slip on a fault, sending out seismic waves. ## Build the idea one step at a time 1. The outer rigid Earth is divided into **tectonic plates**. Their slow relative movement loads rocks with stress. 2. A **fault** is a fracture or zone of fractures along which rock blocks can move. Friction can temporarily lock the blocks. 3. The rocks deform and store elastic energy. When stress exceeds the resistance to slip, the fault moves suddenly. This is the elastic-rebound explanation. 4. Energy travels outward as **seismic waves**. These cause shaking at the surface. The waves carry the released energy; they are not the original tectonic cause. Swipe across the diagram to read its labels ↔ ![Focus, epicentre and a slipping fault](https://deep-learning-study-room.vercel.app/dm/fig/earthquake.46adac0128.svg) Diagram: Focus, epicentre and a slipping fault. Labels: Focus, epicentre and a slipping fault | Focus, epicentre and a slipping fault | Fault plane | Epicentre: surface above focus | Focus: rupture begins within Earth | Surface | Waves spread from the source; shaking effects vary with local conditions. Focus is inside the Earth; epicentre is the surface point directly above it. Fault rupture can extend far beyond the starting point. | Word | Meaning | | --- | --- | | Focus / hypocentre | The point inside the Earth where rupture begins. | | Epicentre | The point on the surface vertically above the focus. | | Focal depth | Vertical distance from the surface to the focus. | | Foreshock / mainshock / aftershock | Smaller preceding event, largest event in a sequence, and subsequent events; “foreshock” is usually identified retrospectively. | Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Convergent: move together. Divergent: move apart. Transform: slide past. Most earthquakes result from sudden fault slip releasing stored strain. Volcanic processes, collapse and certain human activities can also generate earthquakes; seismic waves are the released energy travelling outward, not the underlying tectonic cause. ## Three plate movements that build stress 1. **Convergence.** Plates move together, causing compression, subduction or collision. Locked faults can release stored energy suddenly. 2. **Divergence.** Plates separate and the crust extends. Faulting associated with extension can generate earthquakes. 3. **Transform motion.** Plates slide past one another. Friction can lock parts of a fault until stress overcomes resistance and slip occurs. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q2A · Discuss in detail any five functions and responsibilities of NDMA India. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Discuss in detail any five functions and responsibilities of NDMA India. [10 marks] #### Answer **Definition.** The Disaster Management Act, 2005, as amended in 2025, provides the institutional basis for India’s disaster management system. The National Policy on Disaster Management, 2009 emphasises prevention, mitigation, preparedness, participation and resilience. ## NDMA functions: explain the verb, not just the name 1. **Policy and national planning:** establish the national approach and planning framework. 2. **Guidelines:** guide state authorities and central ministries in preparing plans and integrating risk reduction into development. 3. **Coordination:** coordinate implementation across institutions and sectors. 4. **Mitigation and capacity building:** recommend support for mitigation and promote preparedness, training and risk reduction. 5. **Institutional guidance:** guide disaster management capacity-building arrangements, including broad policy for NIDM. ## Guidelines listed in the lecture The lecture’s dated index groups practical guidance on earthquakes, floods and urban floods, cyclones, tsunami, drought, landslides and avalanches, chemical/biological/radiological events, heat and cold, GLOFs, lightning, boat safety, shelter, schools, hospitals, heritage, psychosocial care, relief standards and incident response. Understand their purpose: translate policy into hazard-specific and sector-specific action. The slide list is a historical teaching index, not a complete current catalogue. For an answer asking “according to the lecture”, the PPT also explicitly lists approval of the National Plan and central ministry plans, recommending mitigation funds and assistance to affected countries as determined by the Central Government. Read the current-framework lesson below for the 2025 amendment and the distinction between the NDRF Force and Fund. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. --- ## TEE · Q2B · Discuss in detail how GIS Application can help in Efficient Earthquake Disaster Manag… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Discuss in detail how GIS Application can help in Efficient Earthquake Disaster Management citing relevant examples. [10 marks] #### Answer For earthquake management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine shaking hazard, soil and building vulnerability to prioritise safer construction and retrofitting. 2. **Preparedness.** Map hospitals, open assembly spaces, lifelines and access routes; rehearse scenarios with blocked roads. 3. **Response.** Combine shaking estimates and verified damage reports to prioritise search, rescue and medical deployment. Estimates require field confirmation. 4. **Recovery.** Map damage and recovery needs; plan safer siting and reconstruction and monitor housing, service and livelihood restoration. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q3A · Discuss in detail the three key causes that resulted in Mumbai Floods 2005. Also sugg… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Discuss in detail the three key causes that resulted in Mumbai Floods 2005. Also suggest any 4 measures of mitigation for reoccurrence of such disaster. [10 marks] #### Answer 1. **Event and setting:** Extreme rainfall on 26 July 2005 caused severe flooding in Mumbai and surrounding areas. 2. **Causes and vulnerability:** Intense rainfall interacted with inadequate or obstructed drainage, loss of natural storage, low-lying development and tide-related drainage constraints. 3. **Impacts:** Transport paralysis, deaths and injuries, housing damage, disrupted livelihoods and public-health risks. 4. **Response and recovery:** Rescue and shelter, restoration of services and attention to drainage, warning and urban-planning weaknesses. 5. **Lessons:** Maintain drains; protect wetlands and natural flow paths; plan outfalls and detention; issue local warnings; regulate exposed development. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ## Three interacting causes 1. **Exceptional rainfall.** A very large rainfall input rapidly produced runoff. 2. **Restricted conveyance.** Blocked or inadequate drainage and constrained river/outfall flow limited removal of water. 3. **Exposed urban development.** Impervious surfaces, loss of storage and low-lying development increased runoff and the people and assets affected. ## Four mitigation measures 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. --- ## TEE · Q3B · Discuss any 10 points that need to be considered during the Recovery Phase for a Tsun… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. Discuss any 10 points that need to be considered during the Recovery Phase for a Tsunami Disaster. [10 marks] #### Answer Recovery after a tsunami restores services and livelihoods while reducing future risk. The sequence overlaps; urgent shelter and essential services may begin during response. 1. **Verify damage and needs.** Survey affected households, infrastructure, services and livelihoods with community participation. 2. **Maintain safe temporary shelter.** Provide accessible accommodation, privacy, water and sanitation while longer-term housing is arranged. 3. **Restore essential lifelines.** Prioritise water, power, communication and emergency access with responsible agencies. 4. **Support health and wellbeing.** Maintain health services, rehabilitation and psychosocial support; monitor actual risks rather than assuming every disaster causes an epidemic. 5. **Manage debris and contamination.** Separate hazardous material and dispose of debris safely through trained services. 6. **Restore education and social services.** Reopen schools and support children, older people and persons with disabilities. 7. **Support livelihoods.** Restore productive assets, market access and fair assistance for affected workers and households. 8. **Reconstruct safely.** Use hazard assessment, appropriate building standards and safer sites where necessary. 9. **Coordinate and account for assistance.** Use transparent eligibility, information sharing and complaint mechanisms to prevent exclusion and duplication. 10. **Review and prepare for recurrence.** Record lessons, maintain restored systems and improve plans, training, warnings and risk reduction. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q4A · Discuss in detail any five ways adopted for Risk Reduction. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Discuss in detail any five ways adopted for Risk Reduction. [10 marks] #### Answer 1. **Reduce exposure.** Avoid siting new homes or hospitals in mapped floodways or unstable slopes. 2. **Reduce vulnerability.** Strengthen buildings, improve drainage and make warnings and transport accessible. 3. **Strengthen capacity.** Train responders, prepare shelters and rehearse coordinated action. 4. **Reduce suitable hazards at source.** Maintain industrial equipment, stabilise slopes where feasible and manage combustible material appropriately. 5. **Manage remaining consequences.** Prepare continuity, recovery and financial/social protection arrangements because residual risk remains. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. Changing exposure, vulnerability or capacity changes expected losses. Apply these measures together. In a flood-prone town, preventing new settlement in the floodway reduces exposure. Raising or protecting critical equipment reduces vulnerability. Accessible warning messages, shelters and assisted transport increase capacity. Removing drainage blockages can reduce local flooding, although it cannot remove every extreme rainfall hazard. Backup water supplies and a recovery plan manage the risk that remains. Maintenance and community participation are essential: a blocked drain or inaccessible shelter may exist on paper without providing protection. Risk reduction therefore continues before, during and after an event and should be part of routine development decisions. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q4B · Discuss in detail any five mitigation measures for prevention of Landslides with neat… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Discuss in detail any five mitigation measures for prevention of Landslides with neat sketches as applicable. [10 marks] #### Answer Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. Drainage and stabilisation must match the slope and failure mechanism. ## Four causes 1. **Rainfall and saturation.** Water increases pore pressure and reduces effective resistance along a potential slip surface. Prolonged or intense rain can therefore destabilise an already weak slope. 2. **Earthquake shaking.** Shaking adds dynamic forces and can dislodge fractured rock or weaken soil. Unstable slopes may fail during or after a strong earthquake. 3. **Loss of support or vegetation.** River erosion, road cutting and excavation remove support at the toe; loss of roots can reduce shallow soil reinforcement. 4. **Weak or unfavourable geology.** Steep slopes, weathered material and joints or bedding dipping toward the valley can make movement easier. Construction loads may further disturb the balance. ## Four mitigation measures 1. **Control water.** Maintain surface drains and, where designed, subsurface drainage. Diverting water safely reduces saturation; do not discharge it onto another unstable slope. 2. **Stabilise the slope.** Qualified engineers can use retaining structures, anchors, soil nails or regrading after investigation. The design must suit the failure mechanism and include drainage. 3. **Protect cover and regulate land use.** Restore suitable vegetation, limit quarrying and avoid unsafe toe cutting or building on unstable ground. Vegetation helps some shallow failures but cannot stop every deep landslide. 4. **Map, monitor and prepare.** Use susceptibility maps, rainfall observations and movement indicators to prioritise closures and evacuation. Mark safe routes and train residents to report new cracks or tilting structures. **Fifth measure: reduce exposure.** Where stabilisation is unreliable or impractical, restrict access or relocate threatened assets through fair, planned processes. This protects people even when the slope hazard remains. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. --- ## TEE · Q5A · Discuss in detail any five general principles of Disaster Management citing suitable … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. Discuss in detail any five general principles of Disaster Management citing suitable examples for each principle. [10 marks] #### Answer Ethical principles protect life and dignity, improve trust and coordination and prevent unfair treatment or avoidable harm. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q5B · Discuss in detail the Cordon-Off Zones. Elaborate their significance citing relevant … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Discuss in detail the Cordon-Off Zones. Elaborate their significance citing relevant examples in Disaster Management for Tsunami. [10 marks] #### Answer A **cordon** is a controlled boundary used to keep people away from danger and organise safe access. Its location depends on the actual hazard, changing conditions, terrain and operations; it is not a fixed-radius circle for every event. Swipe across the diagram to read its labels ↔ ![A safe cordon follows the hazard, not a fixed circle](https://deep-learning-study-room.vercel.app/dm/fig/cordon.14f06142d3.svg) Diagram: A safe cordon follows the hazard, not a fixed circle. Labels: A safe cordon follows the hazard, not a fixed circle | A safe cordon follows the hazard, not a fixed circle | Sea / water | Restricted | hazard area | Authorised | teams only | Controlled access | Check entry; maintain rescue routes. | Safe reception / assembly | Outside assessed danger; accessible shelter, | headcounts and coordination. | Evacuate to safe ground → | Command levels (gold/silver/bronze) describe roles, not universal cordon distances. For a tsunami or coastal flood, the hazard boundary follows inundation risk. Safe reception and command are inland or on safe high ground. 1. **Inner restricted area.** The inundated or otherwise dangerous area is restricted to authorised, appropriately equipped teams. Control entry and exit and keep untrained people away from moving water, debris, unstable buildings and electrical hazards. 2. **Controlled support area.** Place access control, team briefing, equipment and appropriate casualty transfer at a safe boundary. Maintain rescue routes and prevent crowds from obstructing operations. Move this area if conditions change. 3. **Safe outer area.** Locate assembly, public information, relief reception and coordination outside the hazard. Keep access available for emergency vehicles and account for evacuees. 4. **Command and review.** Bronze, silver and gold commonly describe operational, tactical and strategic command responsibilities. The lecture illustrates them as zones; they do not define universal physical distances. Review boundaries after updated forecasts, damage reports or an official all-clear. **Tsunami application:** close access to beaches and low-lying inundation routes, move people inland/uphill to designated safe areas, permit only controlled rescue access and keep the exclusion in place while further waves remain possible. A tsunami can arrive as several waves; the first is not necessarily the largest. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q6A · Elaborate in detail any 10 considerations that you shall consider while drafting a Tr… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Elaborate in detail any 10 considerations that you shall consider while drafting a Training manual for Disaster Management in case of Fire Accident. [10 marks] #### Answer A fire training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain smoke/fire alarm and the source of authorised updates. 4. **State protective actions.** Teach marked stairs and exits; never lifts. 5. **Assign responsibilities.** Identify fire wardens and fire services and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q6B · Discuss in detail role of Engineers (any four specialisations) in Disaster Management… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Discuss in detail role of Engineers (any four specialisations) in Disaster Management. [10 marks] #### Answer Engineers reduce risk through safe design, reliable infrastructure, technical assessment and coordinated restoration. They work within their competence and alongside emergency authorities. | Specialisation | Before | Response and recovery example | | --- | --- | --- | | Civil/structural | Assess sites, use seismic/flood-resistant design and inspect structures. | Assess damaged bridges/buildings and guide safe repair or reconstruction. | | Mechanical | Maintain pumps, machinery, pressure systems and safety interlocks. | Restore pumping and essential plant safely; investigate failures. | | Electrical | Protect supply systems and provide appropriate redundancy and backup. | Isolate dangerous systems through trained staff and restore essential power. | | Computer/IT/communication | Protect data and communication, maintain backups and mapping systems. | Restore networks, support verified incident information and protect sensitive records. | For example, after a flood, civil engineers assess road access, electrical teams make damaged installations safe, mechanical teams restore pumps and IT teams support reliable information sharing. Coordination avoids restoring one system in a way that endangers another. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. --- ## TEE · Q7A · Prepare and discuss in brief a 10-pointer list to be considered in planning a Prepare… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Prepare and discuss in brief a 10-pointer list to be considered in planning a Preparedness awareness program for a drought-prone area. [10 marks] #### Answer A drought training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain rainfall, storage and water-supply indicators and the source of authorised updates. 4. **State protective actions.** Teach water priorities and assistance access rather than sudden mass evacuation. 5. **Assign responsibilities.** Identify water, agriculture, health and local government teams and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q7B · Elaborate the classification types on basis of cause, characteristics, impact compone… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-07-05--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-07-05/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Elaborate the classification types on basis of cause, characteristics, impact component and legal boundaries for the case study of “Nisarg Cyclone” and justify the same in detail. [10 marks] #### Answer **Chain:** natural → atmospheric/hydrometeorological → wind, rain and possible coastal inundation affecting air, water, land and society → local/regional impact within India. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. Nisarga made landfall in Maharashtra on 3 June 2020. Its affected footprint and coordination needs determine the administrative level; the occurrence of a cyclone does not automatically make it a global disaster. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q1A · Discuss in detail types of Floods on basis of duration of onset of floods with releva… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Discuss in detail types of Floods on basis of duration of onset of floods with relevant examples. [5 marks] #### Answer **Definition.** A flood is the inundation of normally dry land by water. It may result from river overflow, intense rainfall, inadequate drainage, storm surge or sudden release of stored water. ## Two separate ways of classifying floods | By onset | Meaning | Planning implication | | --- | --- | --- | | Slow-onset | Water rises gradually, often after prolonged rainfall. | There may be time for planned evacuation, but long duration disrupts livelihoods. | | Rapid-onset | Water rises over a comparatively short period. | Warnings and prompt action become critical. | | Flash flood | Very rapid rise, often within minutes to a few hours of the trigger. | Little lead time; fast flow and debris can be highly destructive. | | By source | How it develops | | --- | --- | | River / fluvial | River discharge exceeds channel capacity and water spreads over its floodplain. | | Urban / pluvial | Rainfall runoff exceeds drainage or infiltration capacity; a river need not overflow. | | Dam-breach | Dam failure releases reservoir water suddenly downstream. | | Coastal surge | Wind and low pressure raise sea level; high tide can compound flooding. | | GLOF | Sudden release from a glacial lake, for example after its retaining barrier fails. | “Flash” describes speed, whereas “dam-breach” describes the source. A dam-breach flood may therefore also be a flash flood. Onset speed and total flood duration are different; a rapidly starting event may leave some areas inundated for much longer. The PPT uses “rapid” and “flash” inconsistently, so describe the actual time-scale instead of forcing a rigid universal duration. **Indian examples:** monsoon river floods in Assam illustrate river flooding; Mumbai in July 2005 illustrates severe urban flooding; Panshet in 1961 illustrates dam-failure flooding; coastal inundation during a cyclone illustrates coastal flooding. Uttarakhand in June 2013 included rapid mountain floods and debris flows. Source and speed of onset are different classification axes. ## Keep source and onset classifications separate | Classification axis | Type | Indian example and explanation | | --- | --- | --- | | Source | River flood | Assam monsoon river flooding: rivers overflow or inundate adjacent low-lying land. | | Source | Urban / surface-water flood | Mumbai, July 2005: exceptional rainfall combined with drainage and urban vulnerabilities. | | Source | Dam-failure flood | Panshet, 1961: failure released stored water downstream. | | Source | Coastal flood | The 1999 Odisha super cyclone produced destructive storm-surge inundation along the coast. | | Onset / duration | Slow-onset or sustained flood | Seasonal Assam/Brahmaputra flood episodes can build and persist over days. The actual timing varies by event and location. | | Onset / duration | Rapid-onset / flash flood | Uttarakhand, June 2013 included rapidly developing mountain floods and debris flows. A flash flood describes rapid onset, not a separate water source. | One event can occupy both classifications: a sudden dam-break flood is a source-defined dam-failure flood and a rapid-onset flood. Do not treat “river” and “slow” as mutually exclusive categories or assume every river flood develops slowly. Coastal-case source: [NDMA cyclone-management guidelines, hosted by NIDM](https://nidm.gov.in/pdf/guidelines/cyclones.pdf), discussion of storm surge and inland inundation during the October 1999 Odisha cyclone. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q1B · Discuss in detail the significance and benefits of Preparedness Measures for Disaster… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. Discuss in detail the significance and benefits of Preparedness Measures for Disaster Management. [5 marks] #### Answer **Preparedness** is the knowledge, planning and capacities developed in advance to anticipate, respond to and recover from a likely disaster. Training is one part of preparedness, not its complete meaning. 1. **Earlier protective action.** Warnings linked to agreed decisions allow people to move before conditions become dangerous; a cyclone evacuation trigger is one example. 2. **Less confusion and delay.** Named roles, contacts and rehearsed procedures tell teams who activates the plan, opens shelters and reports needs. 3. **Resources ready for use.** Maintained supplies, equipment, transport and backup communications prevent avoidable shortages during the first response. 4. **Protection of people needing support.** Plans identify assistance for children, older people, visitors and persons with disabilities instead of assuming everyone can evacuate unaided. 5. **Continuity and improvement.** Backup arrangements protect essential services; drills reveal gaps in routes, communications and accountability before a real emergency. For example, a flood-prone school maps a safe route, assigns assistance roles, keeps emergency contacts and practises headcounts. The drill tests the plan; supplies and arrangements must also be maintained. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1C · Elaborate in brief any five components of an emergency kit for cyclone preparedness. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Elaborate in brief any five components of an emergency kit for cyclone preparedness. [5 marks] #### Answer ## Assembly point An assembly point is a pre-designated, safe and accessible place where evacuees gather and are accounted for. It must be away from the relevant hazard and should not block emergency access. Wardens conduct headcounts, report missing people and prevent unsafe re-entry; an alternate point is needed if the primary point becomes unsafe. ## Communication plan The plan states who issues the warning, what signal and message are used, how occupants and emergency services are contacted and how updates and headcounts are reported. It includes accessible messages, current contact lists and backup communication. During a drill, a separate instruction must identify a real emergency. ## Eight preparedness-kit components 1. **Safe drinking water.** Support essential hydration when supply is interrupted. 2. **Suitable ready-to-eat food.** Choose practical food compatible with household needs. 3. **Essential medicines.** Include prescribed medicines and necessary personal medical supplies. 4. **First-aid supplies.** Keep basic supplies and use them within the user’s training. 5. **Torch.** A torch with spare power is safer than an open flame around uncertain damage. 6. **Battery radio and phone power.** Receive official updates and maintain communication. 7. **Documents and contacts.** Protect copies of identification and essential contact information. 8. **Personal essentials.** Include hygiene items, weather protection and disability, infant or other individual needs. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q1D · Discuss in detail how a cyclone is formed with a neat sketch. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Discuss in detail how a cyclone is formed with a neat sketch. [5 marks] #### Answer **Definition.** A cyclone is an atmospheric circulation around a low-pressure centre. A tropical cyclone is an organised rotating storm over warm tropical or subtropical waters, with strong winds, rain and potentially storm surge. Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Warm moist air feeds the storm. The eyewall surrounds the relatively calm eye in a mature intense tropical cyclone. 1. Warm ocean water supplies moisture and energy by evaporation. Typical favourable sea-surface temperatures are around 26–27°C or higher over adequate depth. 2. Warm moist air rises; condensation releases latent heat, supporting further rising motion. 3. Air flows towards the low-pressure centre. Earth’s rotation helps organise the circulation; systems do not usually form right at the equator. 4. With favourable conditions such as sufficient moisture and limited disruptive vertical wind shear, the system organises and intensifies. 5. A mature system may develop an eye surrounded by an eyewall. It weakens when it loses favourable ocean energy or encounters hostile atmospheric conditions. | Part | Meaning | | --- | --- | | Eye | Relatively calm central region with descending air in a well-developed cyclone. | | Eyewall | Ring of intense convection; strongest winds and heavy rainfall are commonly found here. | | Rainbands | Spiral bands of clouds and rain around the centre. | | Track | The path followed by the storm; forecasts have uncertainty. | **Definition.** The principal tropical-cyclone hazards are strong winds, heavy rainfall and storm surge. Their combined effects can create cascading damage. | Hazard | Mechanism | Damage | | --- | --- | --- | | Wind | Strong pressure gradients drive fast winds. | Roof damage, flying debris, fallen trees and power lines. | | Rain | Intense rainfall produces runoff. | River/urban flooding and landslides. | | Storm surge | Wind pushes sea water towards shore; low pressure adds a smaller contribution. | Coastal inundation, saltwater intrusion and erosion. | **Storm tide** combines astronomical tide and storm surge; waves and river flooding can compound impacts further. A tsunami is a different process, usually generated by sudden displacement of the water column. ## Names and classifications without mixing systems Hurricane is the regional name used in the Atlantic and northeast Pacific; typhoon in the northwest Pacific; tropical cyclone or cyclonic storm is used in the Indian Ocean context. A tornado is a small-scale rotating column connected to a thunderstorm and is **not** a South American synonym for tropical cyclone. A mesocyclone is a rotating thunderstorm updraft. Polar and extratropical cyclones occur in different environments and should not be described as identical warm-ocean systems. In the Northern Hemisphere, cyclonic circulation is anticlockwise; in the Southern Hemisphere, clockwise. India’s Bay of Bengal and Arabian Sea coasts both face serious cyclone risk. Not every Indian cyclone is moderate. ## Wind categories need their own units and definitions The PPT shows both a Saffir–Simpson hurricane image and a gust-based five-category table. They are not interchangeable with IMD’s North Indian Ocean classification. Use the named system supplied in a question; do not mix gust speed with sustained wind speed. The key M2 concepts are formation, hazards, warnings and mitigation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q2A · Discuss in detail Disaster Reporting and Management hierarchy in India. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Discuss in detail Disaster Reporting and Management hierarchy in India. [10 marks] #### Answer **Definition.** Structured incident reporting gives responders a common picture of an emergency. METHANE is a widely used multi-agency reporting mnemonic that appears in the supplied archive’s TEE questions. | Letter | Information to report | | --- | --- | | M | Major incident: declared or not; do not invent a declaration. | | E | Exact location: identifiable site and geographic details. | | T | Type of incident. | | H | Hazards present or developing. | | A | Access: safe entry and exit routes, including blockages. | | N | Number and condition of casualties; label estimates and unknowns. | | E | Emergency services present and required. | The acronym is not a chemistry question about methane gas. Send a short verified initial report, distinguish observations from estimates, and update as information changes. Exact procedures follow the relevant response organisation; this mnemonic is included as an archival examination application. ## Example report: hypothetical flood incident Major incident status: awaiting confirmation. Location: east-bank bridge approach, Ward 4. Type: river inundation. Hazards: fast water and damaged power line. Access: west approach closed; north road currently confirmed usable. Casualties: three people reported stranded; injury status unknown. Services: local police on scene; authorised rescue and utility support requested. This is an illustration, not a report of a real event. ## Emergency management expert: role by phase 1. Assess hazards and vulnerability and translate findings into plans. 2. Define responsibilities and coordinate agencies, communities and resources. 3. Train personnel, organise safe drills and improve weak procedures. 4. During response, support verified information, priorities and resource allocation. 5. During recovery, assess needs, restore systems, plan resilient reconstruction and review lessons. ## Worked incident report: illustrative details | Field | Example report | | --- | --- | | M | Major incident declared by the authorised incident commander. | | E | Example: Riverside School, east gate, mapped grid reference shared with control. | | T | Flooding with people stranded. | | H | Fast water, submerged electrical equipment and unstable walls. | | A | Use the northern approach; southern bridge reported closed. Confirm route status. | | N | Twenty people reported stranded; injuries not yet confirmed. | | E | Police and fire teams on scene; request water rescue and medical support. | Update time-stamped information as it is verified. METHANE is an acronym for structured reporting here, not the chemical methane gas. **Definition.** India’s disaster management framework distributes policy, planning and response responsibilities across national, state, district and local levels. Swipe across the diagram to read its labels ↔ ![From national policy to local action](https://deep-learning-study-room.vercel.app/dm/fig/institutions.e7262187f0.svg) Diagram: From national policy to local action. Labels: From national policy to local action | From national policy to local action | National: NDMA and Union government | Policy, planning framework, guidance and national support | State: SDMA and state departments | State plans, coordination, sector responsibilities and resources | District: DDMA and district administration | Local risk assessment, planning, coordination and implementation | Local authorities and communities | Warnings, preparedness, service delivery and assisted evacuation | Technical support | IMD: weather CWC: | floods INCOIS: tsunami | Other key roles | NDRF: specialist | response NIDM: training | and capacity Authorities plan and coordinate; technical agencies provide specialist information; response forces conduct specialised operations. | Body | Full name / leadership | Main role | | --- | --- | --- | | NDMA | National Disaster Management Authority; chaired by the Prime Minister | National policy, plans, guidelines and coordination for risk reduction and effective response. | | SDMA | State Disaster Management Authority; chaired by the Chief Minister | State policy, plans and coordination adapted to the state’s risks. | | DDMA | District Disaster Management Authority; headed by the District Magistrate / Collector / Deputy Commissioner | District planning, coordination, preparedness and local implementation; elected local representative has a co-chairing role under the Act. | | NDRF | National Disaster Response Force | Specialist response including search, rescue and disaster operations. | | NIDM | National Institute of Disaster Management | Training, capacity building, research and documentation. | | Local authorities | Municipalities, panchayats and local services | Maintain local services, implement safety measures and assist warnings, evacuation and relief. | An **authority** frames policy and coordinates. A **force** provides operational response. An **institute** develops skills and knowledge. They are not interchangeable. State and local services also respond; it is incorrect to suggest that only NDRF does rescue. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. --- ## TEE · Q2B · Discuss in detail how GIS Application can help in Efficient Flood Disaster Management… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Discuss in detail how GIS Application can help in Efficient Flood Disaster Management citing relevant examples. [10 marks] #### Answer For river flood management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Overlay flood extent/depth, terrain and development to support floodplain zoning, storage planning and protection of critical facilities. 2. **Preparedness.** Map forecasts, vulnerable settlements, shelters and alternate evacuation routes; rehearse responses to road and bridge closures. 3. **Response.** Update inundation and accessibility maps, locate stranded people and allocate boats, supplies and medical teams using verified field reports. 4. **Recovery.** Map damage and losses, track restoration of roads and water supply, prioritise rebuilding and check that reconstructed assets are less exposed. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q3A · Discuss in detail the causes and impacts of “Tamil Nadu Tsunami”. Also suggest any 4 … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Discuss in detail the causes and impacts of “Tamil Nadu Tsunami”. Also suggest any 4 measures of mitigation for reoccurrence of such disaster. [10 marks] #### Answer The **Tamil Nadu tsunami of 26 December 2004** was part of the Indian Ocean tsunami generated by the Sumatra–Andaman earthquake. Nagapattinam was especially badly affected; other severely affected coastal districts included Cuddalore, Kanyakumari and Chennai. ## 1. Causes: how the waves reached Tamil Nadu 1. **Undersea earthquake.** Sudden slip on the subduction boundary between the India plate and Burma microplate displaced the seafloor. The main trigger was this earthquake, not a cyclone or ordinary high tide. 2. **Displacement and propagation of seawater.** Vertical seafloor movement displaced the water above it. Long waves carried that disturbance across the Indian Ocean towards exposed coasts, including Tamil Nadu. 3. **Coastal inundation and vulnerability.** As the waves approached shallow coastal water, their interaction with coastal shape and depth produced destructive inundation and currents. Low-lying settlements, vulnerable housing and inadequate warning/evacuation readiness increased the losses; these conditions worsened the disaster but did not cause the earthquake. Swipe across the diagram to read its labels ↔ ![Tsunami: displacement → propagation → inundation](https://deep-learning-study-room.vercel.app/dm/fig/tsunami.bc017e1e08.svg) Diagram: Tsunami: displacement → propagation → inundation. Labels: Tsunami: displacement → propagation → inundation | Tsunami: displacement → propagation → inundation | 1 · Seafloor displacement | 2 · Waves propagate | 3 · Move to designated | safe high ground | The tsunami can be a series of waves; do not return after the first wave. Earthquake → seafloor and water displacement → travelling waves → coastal inundation. The drawing explains the mechanism; it is not a map of Tamil Nadu. ## 2. Impacts in Tamil Nadu 1. **Loss of life and family disruption.** Nagapattinam and other affected coastal districts suffered deaths, injuries and separation or loss of family members. Women, children and people unable to escape faced serious vulnerability. 2. **Housing loss and displacement.** Waves damaged or destroyed coastal houses and belongings. Families needed temporary shelter, safe water, sanitation and later permanent housing. 3. **Fishing and connected livelihoods.** Damaged boats, nets, landing and harbour facilities interrupted fishing. Fish sellers, processors and other workers dependent on the coastal fishing economy also lost income. 4. **Damage to services and productive assets.** Roads, power and other community facilities were damaged, complicating relief and recovery. Loss of livestock and other household assets further weakened livelihoods. **Real recovery connection:** Tamil Nadu’s tsunami rehabilitation programmes included housing and infrastructure reconstruction and livelihood support. This shows why recovery had to restore both physical assets and the means of earning a living. ## 3. Four measures to reduce losses in a future tsunami 1. **Monitoring linked to usable warnings.** Connect seismic/ocean monitoring and official tsunami alerts to local announcements, accessible messages and named action responsibilities. An alert helps only if exposed people receive it and know where to go. 2. **Evacuation planning and repeated drills.** Map inundation zones, mark routes to designated safe ground and practise assisted evacuation. Include fishers, visitors, children, older people and persons with disabilities; do not assume everyone can walk the same distance or understand one language. 3. **Safer coastal land use and shelter locations.** Use hazard maps to guide new development and locate essential facilities outside high-risk areas. Where needed, properly engineered designated evacuation structures can complement safe routes; an ordinary coastal building is not automatically a safe refuge. 4. **Resilient reconstruction and protected lifelines.** Rebuild houses and public facilities using risk-informed siting and suitable standards; provide backup water, communications and access. Restore fishing and other livelihoods without recreating the same avoidable exposure. **Meaning of “mitigation for reoccurrence”:** these measures reduce deaths, damage and disruption when another tsunami occurs. They cannot prevent the tectonic earthquake or guarantee that no tsunami will recur. Case facts: [USGS: 2004 tsunami mechanism](https://www.usgs.gov/centers/pcmsc/science/tsunami-generation-2004-m91-sumatra-andaman-earthquake); [NIDM: Tamil Nadu case study, pp. 43–48](https://nidm.gov.in/pdf/modules/gender.pdf); [Tamil Nadu rehabilitation programmes](https://tnrd.tn.gov.in/schemes/ext_tsunami.html). #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q3B · Discuss any 10 points that need to be considered during the Recovery Phase for a Cycl… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. Discuss any 10 points that need to be considered during the Recovery Phase for a Cyclone Disaster. [10 marks] #### Answer Recovery after a cyclone restores services and livelihoods while reducing future risk. The sequence overlaps; urgent shelter and essential services may begin during response. 1. **Verify damage and needs.** Survey affected households, infrastructure, services and livelihoods with community participation. 2. **Maintain safe temporary shelter.** Provide accessible accommodation, privacy, water and sanitation while longer-term housing is arranged. 3. **Restore essential lifelines.** Prioritise water, power, communication and emergency access with responsible agencies. 4. **Support health and wellbeing.** Maintain health services, rehabilitation and psychosocial support; monitor actual risks rather than assuming every disaster causes an epidemic. 5. **Manage debris and contamination.** Separate hazardous material and dispose of debris safely through trained services. 6. **Restore education and social services.** Reopen schools and support children, older people and persons with disabilities. 7. **Support livelihoods.** Restore productive assets, market access and fair assistance for affected workers and households. 8. **Reconstruct safely.** Use hazard assessment, appropriate building standards and safer sites where necessary. 9. **Coordinate and account for assistance.** Use transparent eligibility, information sharing and complaint mechanisms to prevent exclusion and duplication. 10. **Review and prepare for recurrence.** Record lessons, maintain restored systems and improve plans, training, warnings and risk reduction. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q4A · Discuss in detail with a neat sketch Risk Mapping and explain in detail the four step… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Discuss in detail with a neat sketch Risk Mapping and explain in detail the four steps of Risk Mapping. Also elaborate in brief the significance of Risk Mapping. [10 marks] #### Answer **Definition.** Risk assessment identifies hazards and evaluates exposure, vulnerability and capacity to understand possible losses and priorities. Risk mapping represents that information geographically. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Hazard information combined with exposed assets and vulnerability supports risk-based decisions. 1. **Identify risk:** determine what can happen, where and to whom. For a flood, gather past inundation, low ground, river and settlement data. 2. **Assess risk:** examine likelihood, depth/velocity, people and assets, construction and coping capacity. Rank areas by potential harm. 3. **Communicate risk:** provide understandable maps, warnings and explanations to planners, responders and residents. Include uncertainty and local accessibility needs. 4. **Mitigate risk:** apply zoning, drainage improvements, shelters, evacuation and training; update the assessment after changes. ## Analysis and assessment | Disaster analysis | Damage / needs assessment | | --- | --- | | Explains why and how an event produced losses. | Estimates what has been damaged and what assistance is needed. | | Investigates mechanisms, vulnerabilities and failures. | Measures affected people, services, losses and recovery requirements. | | Uses event data, models and causal investigation. | Uses surveys, inspections, inventories and field reports. | | Supports long-term prevention and improved planning. | Supports relief allocation and recovery priorities. | This comparison concerns **post-disaster damage/needs assessment**. Assessment is not restricted to after a disaster: pre-event risk assessments are essential too. Neither word guarantees greater accuracy by itself. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q4B · Discuss in detail any five mitigation measures for prevention of Droughts. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Discuss in detail any five mitigation measures for prevention of Droughts. [10 marks] #### Answer 1. **Conserve rainfall and restore watersheds.** Use suitable rainwater harvesting, contour measures and recharge work. Site-specific geology and maintenance determine whether water can be stored or recharge groundwater effectively. 2. **Use water efficiently.** Repair leaks, use appropriate irrigation scheduling and adopt efficient systems where suitable. Saving water at one point should be reflected in an overall water budget rather than expansion that cancels the saving. 3. **Plan crops and livelihoods.** Choose crops and sowing decisions suited to local water availability; diversify income where feasible. This reduces dependence on a single water-intensive crop or season. 4. **Monitor shortages and manage demand.** Track rainfall deficits, soil moisture, reservoir levels and groundwater. Prioritise drinking water, protect essential services and agree fair allocation before supplies become critical. 5. **Prepare community support.** Communicate advisories, arrange safe emergency drinking-water supply and fodder, and support vulnerable livelihoods. Emergency relief addresses immediate suffering while long-term measures reduce the next drought’s impacts. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q5A · Discuss in detail any five general principles of Disaster Management citing suitable … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. Discuss in detail any five general principles of Disaster Management citing suitable examples for each principle. [10 marks] #### Answer Ethical principles protect life and dignity, improve trust and coordination and prevent unfair treatment or avoidable harm. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q5B · Discuss in detail the Cordon-Off Zones. Elaborate their significance citing relevant … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Discuss in detail the Cordon-Off Zones. Elaborate their significance citing relevant examples in Disaster Management for Floods. [10 marks] #### Answer A **river-flood cordon** is a controlled access boundary around assessed inundation, unstable banks, damaged crossings or other flood hazards. It follows the changing flood footprint and safe routes, not a universal circular radius. Swipe across the diagram to read its labels ↔ ![River flood: control access around the flood footprint](https://deep-learning-study-room.vercel.app/dm/fig/river-cordon.22669aea6f.svg) Diagram: River flood: control access around the flood footprint. Labels: River flood: control access around the flood footprint | River flood: control access around the flood footprint | Restricted floodplain | River | Safe assembly area | Outside assessed inundation; | headcounts and support. | Controlled entry | Authorised rescue access; close | unsafe roads. | Assessed safe route | Dashed boundary: review water levels, erosion, bridges and utilities. Not to scale. Top view: the restricted floodplain follows the river; the safe assembly area is outside the assessed inundation zone. Not to scale. 1. **Identify the restricted area.** Use forecast and observed water levels, inundation maps and field reports. Include erosion, damaged bridges, electricity and contamination where relevant. 2. **Control access.** Place barriers and trained personnel at unsafe roads and crossings. Permit only authorised, suitably equipped teams through managed entry points. 3. **Preserve safe evacuation and rescue routes.** Keep public evacuation and emergency access clear; reassess routes as water levels and bridge conditions change. 4. **Organise safe support outside the cordon.** Locate reception, headcounts, first aid, shelter coordination and command outside the assessed flood danger. 5. **Review and reopen safely.** Move the boundary as the flood footprint changes. Reopen only after competent checks of water, roads, structures and utilities; receding water alone is insufficient. Example: a riverside road and damaged bridge are closed while an assessed dry route leads residents to a designated safe assembly point. This illustrative layout explains the function of the cordon; it is not a map or a prescribed evacuation distance. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q6A · Elaborate in detail any 10 considerations that you shall consider while drafting a Tr… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Elaborate in detail any 10 considerations that you shall consider while drafting a Training manual for Disaster Management in case of Cyclone. [10 marks] #### Answer A cyclone training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain official cyclone warnings and the source of authorised updates. 4. **State protective actions.** Teach designated shelters before wind/surge makes travel unsafe. 5. **Assign responsibilities.** Identify local authorities, shelter managers and community volunteers and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q6B · Discuss in detail the role of media in Disaster Management citing relevant examples. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Discuss in detail the role of media in Disaster Management citing relevant examples. [10 marks] #### Answer For disaster management, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. 4. **Operational radio and verified digital updates.** Use two-way radio for field teams and control rooms, with official web/social updates for public information. Team reports help correct road closures and resource needs; verify updates before forwarding them. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q7A · Prepare and discuss in brief a 10-pointer list to be considered in planning a Prepare… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Prepare and discuss in brief a 10-pointer list to be considered in planning a Preparedness awareness program for an area predicted for landslides. [10 marks] #### Answer A landslide training/awareness plan should explain local risks and give people usable actions, responsibilities and practice. 1. **Identify the audience.** Include residents/workers, visitors and people needing assistance; choose accessible formats. 2. **Explain the local hazard.** Use maps and familiar examples to describe causes, exposure and likely impacts. 3. **Teach warning recognition.** Explain rainfall, slope movement and official closure/evacuation messages and the source of authorised updates. 4. **State protective actions.** Teach safe routes outside the predicted slope/runout zone. 5. **Assign responsibilities.** Identify geological/engineering specialists and local services and describe how they coordinate. 6. **Arrange resources.** Specify communication, transport, shelter and supplies appropriate to the hazard. 7. **Plan inclusion and accountability.** Provide assistance arrangements, contact information and ways to account for people or track needs. 8. **Use safe practice.** Rehearse decisions, communication and relevant procedures; never create a real hazardous release or fire. 9. **Evaluate understanding and performance.** Observe gaps and collect feedback instead of measuring participation alone. 10. **Update and repeat.** Assign improvements, revise contacts/maps and repeat training when personnel, risks or conditions change. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q7B · Elaborate the classification types for the case study of “Kerala Floods” and justify … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-05-04--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-05-04/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Elaborate the classification types for the case study of “Kerala Floods” and justify the same in detail. [10 marks] #### Answer **Chain:** natural hydrometeorological trigger → physical flooding and associated landslides → water, land, buildings and society affected → predominantly regional/state-scale impacts with national support. 1. **Event and setting:** Heavy monsoon rainfall in August 2018 caused widespread flooding and landslides in Kerala. 2. **Causes and vulnerability:** Very high rainfall, saturated catchments, affected river systems and exposed development combined; reservoir management formed part of the broader management challenge. 3. **Impacts:** Damage to housing, roads, crops and services, large-scale evacuation and major recovery needs. 4. **Response and recovery:** Government services, armed forces, volunteers and local fishers supported rescue and relief; rebuilding required coordinated needs assessment. 5. **Lessons:** Use integrated basin planning, forecast-informed reservoir coordination, wetland and drainage protection, accessible warnings and resilient reconstruction. Avoid assigning the entire disaster to one cause. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. --- ## TEE · Q1A · Discuss in detail significance of awareness in Disaster Management considering any on… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Discuss in detail significance of awareness in Disaster Management considering any one type of disaster. [4 marks] #### Answer Awareness generation helps people recognise their local hazards, understand warnings and know how to obtain assistance. It is needed because unfamiliar terms, rumours and inaccessible messages can prevent action even when a technically accurate forecast exists. 1. **Explain local risk.** Use familiar places and examples so residents understand who may be affected and why. 2. **Teach protective action.** Show the warning signal, safe route, assembly point and essential preparations rather than giving only slogans. 3. **Include different audiences.** Use local languages, accessible formats and suitable times for children, workers, older people and visitors. 4. **Build trust and coordination.** Identify official information sources and encourage community participation, reporting and mutual support. 5. **Link awareness to practice.** Follow explanation with training and drills, collect feedback and correct gaps. Knowing a message is different from being able to act on it. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q1B · Discuss in brief Risk Reduction Measures to avoid disaster. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. Discuss in brief Risk Reduction Measures to avoid disaster. [4 marks] #### Answer 1. **Reduce exposure.** Avoid siting new homes or hospitals in mapped floodways or unstable slopes. 2. **Reduce vulnerability.** Strengthen buildings, improve drainage and make warnings and transport accessible. 3. **Strengthen capacity.** Train responders, prepare shelters and rehearse coordinated action. 4. **Reduce suitable hazards at source.** Maintain industrial equipment, stabilise slopes where feasible and manage combustible material appropriately. 5. **Manage remaining consequences.** Prepare continuity, recovery and financial/social protection arrangements because residual risk remains. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. Changing exposure, vulnerability or capacity changes expected losses. Apply these measures together. In a flood-prone town, preventing new settlement in the floodway reduces exposure. Raising or protecting critical equipment reduces vulnerability. Accessible warning messages, shelters and assisted transport increase capacity. Removing drainage blockages can reduce local flooding, although it cannot remove every extreme rainfall hazard. Backup water supplies and a recovery plan manage the risk that remains. Maintenance and community participation are essential: a blocked drain or inaccessible shelter may exist on paper without providing protection. Risk reduction therefore continues before, during and after an event and should be part of routine development decisions. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1C · Differentiate between Training and Drill citing at least two relevant examples. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Differentiate between Training and Drill citing at least two relevant examples. [4 marks] #### Answer ## Need 1. **Convert knowledge into action.** People may know an alarm exists but still not know which exit or assembly point to use. Training explains the procedure; a drill rehearses it. 2. **Reduce confusion.** Assigned roles and rehearsed communication reduce duplicated work and missed responsibilities. 3. **Identify weaknesses.** A drill can reveal blocked exits, inaudible alarms, inaccessible routes and inaccurate contact lists. 4. **Include all occupants.** Visitors and people needing assistance must be included in plans rather than assumed to evacuate independently. ## Objectives 1. **Practise safe behaviour.** Participants recognise the warning and follow the correct protective procedure. 2. **Test coordination and accountability.** Wardens, emergency services and occupants communicate and account for people at the assembly point. 3. **Improve the plan.** Observers record delays and gaps; organisers assign corrections and repeat the exercise to verify improvement. 1. **Earthquake drill.** Participants rehearse Drop, Cover and Hold On, followed by safe evacuation when shaking stops and conditions permit. This makes the distinction between protection during shaking and later movement clear. 2. **Fire drill.** Occupants recognise the alarm, use designated exits and report to the assembly point. Wardens practise headcounts and identify blocked routes. 3. **Cyclone evacuation drill.** Residents practise receiving warnings, using transport and reaching designated shelters, including assisted evacuation. The drill turns a forecast into a rehearsed community action. Debriefing explains why each action matters and corrects errors before a real emergency. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q1D · Discuss in detail the four key roles of Media in Disaster Management. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Discuss in detail the four key roles of Media in Disaster Management. [4 marks] #### Answer For disaster management, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. 4. **Operational radio and verified digital updates.** Use two-way radio for field teams and control rooms, with official web/social updates for public information. Team reports help correct road closures and resource needs; verify updates before forwarding them. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1E · Discuss in detail significance of Fire Drills in High Rise Buildings and elaborate an… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q1e/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q1e Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1E. Discuss in detail significance of Fire Drills in High Rise Buildings and elaborate any two points from Fire Accidents management case. [4 marks] #### Answer ## Need 1. **Convert knowledge into action.** People may know an alarm exists but still not know which exit or assembly point to use. Training explains the procedure; a drill rehearses it. 2. **Reduce confusion.** Assigned roles and rehearsed communication reduce duplicated work and missed responsibilities. 3. **Identify weaknesses.** A drill can reveal blocked exits, inaudible alarms, inaccessible routes and inaccurate contact lists. 4. **Include all occupants.** Visitors and people needing assistance must be included in plans rather than assumed to evacuate independently. ## Objectives 1. **Practise safe behaviour.** Participants recognise the warning and follow the correct protective procedure. 2. **Test coordination and accountability.** Wardens, emergency services and occupants communicate and account for people at the assembly point. 3. **Improve the plan.** Observers record delays and gaps; organisers assign corrections and repeat the exercise to verify improvement. The paper does not name its Fire Accidents management case and the exact classroom case handout was not supplied. The following two points are illustrative applications, not historical claims about that missing case. 1. **Protected escape and assistance.** In an illustrative high-rise scenario, practise protected stair access and evacuation according to the building’s approved plan, including assistance for people needing it. Do not use lifts unless a designated evacuation lift and authorised procedure specifically permit it. 2. **Communication and accountability.** Test the alarm, clear instructions, assembly headcounts and reporting of missing occupants. A drill can reveal a missed alarm or unassigned assistance role so it is corrected before an emergency. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2A · Describe in detail the three main causes of earthquakes illustrating them with neat s… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Describe in detail the three main causes of earthquakes illustrating them with neat sketches. [10 marks] #### Answer **Definition.** An earthquake is ground shaking caused by a sudden release of stored energy in the Earth. Most destructive earthquakes result from sudden slip on a fault, sending out seismic waves. ## Build the idea one step at a time 1. The outer rigid Earth is divided into **tectonic plates**. Their slow relative movement loads rocks with stress. 2. A **fault** is a fracture or zone of fractures along which rock blocks can move. Friction can temporarily lock the blocks. 3. The rocks deform and store elastic energy. When stress exceeds the resistance to slip, the fault moves suddenly. This is the elastic-rebound explanation. 4. Energy travels outward as **seismic waves**. These cause shaking at the surface. The waves carry the released energy; they are not the original tectonic cause. Swipe across the diagram to read its labels ↔ ![Focus, epicentre and a slipping fault](https://deep-learning-study-room.vercel.app/dm/fig/earthquake.46adac0128.svg) Diagram: Focus, epicentre and a slipping fault. Labels: Focus, epicentre and a slipping fault | Focus, epicentre and a slipping fault | Fault plane | Epicentre: surface above focus | Focus: rupture begins within Earth | Surface | Waves spread from the source; shaking effects vary with local conditions. Focus is inside the Earth; epicentre is the surface point directly above it. Fault rupture can extend far beyond the starting point. | Word | Meaning | | --- | --- | | Focus / hypocentre | The point inside the Earth where rupture begins. | | Epicentre | The point on the surface vertically above the focus. | | Focal depth | Vertical distance from the surface to the focus. | | Foreshock / mainshock / aftershock | Smaller preceding event, largest event in a sequence, and subsequent events; “foreshock” is usually identified retrospectively. | Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Convergent: move together. Divergent: move apart. Transform: slide past. Most earthquakes result from sudden fault slip releasing stored strain. Volcanic processes, collapse and certain human activities can also generate earthquakes; seismic waves are the released energy travelling outward, not the underlying tectonic cause. ## Three plate movements that build stress 1. **Convergence.** Plates move together, causing compression, subduction or collision. Locked faults can release stored energy suddenly. 2. **Divergence.** Plates separate and the crust extends. Faulting associated with extension can generate earthquakes. 3. **Transform motion.** Plates slide past one another. Friction can lock parts of a fault until stress overcomes resistance and slip occurs. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q2B · Prepare at least five Do’s and Don’ts draft for training of preparedness for Earthqua… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Prepare at least five Do’s and Don’ts draft for training of preparedness for Earthquake. [10 marks] #### Answer ## Five dos 1. **Drop, Cover and Hold On.** During shaking indoors, protect yourself under suitable sturdy cover and hold on; if cover is unavailable, protect your head and neck where you are. 2. **Stay clear of falling objects.** Keep away from windows, tall unsecured furniture and damaged partitions. 3. **If outdoors, seek open space.** Keep clear of buildings, trees, poles and wires without moving into another hazard. 4. **If driving, stop safely.** Pull over away from bridges, overpasses and wires where safe and remain in the vehicle until shaking stops. 5. **Move carefully after shaking.** When safe, use designated exits and stairs, expecting aftershocks and debris. ## Five don’ts 1. **Do not rush outside while shaking.** Falling glass and masonry can make exits and building edges dangerous. 2. **Do not use lifts.** Power loss or damage can trap occupants. 3. **Do not re-enter damaged buildings without clearance.** Aftershocks and hidden structural damage can cause collapse. 4. **Do not stand beside windows or unsecured tall furniture.** Glass, shelves and contents can fall during shaking. 5. **Do not touch fallen power lines or operate switches near a suspected gas leak.** Keep clear and report the hazard to trained emergency or utility teams; sparks can ignite leaking gas. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q3A · Establish and explain in detail the classification of four types of Disaster for the … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Establish and explain in detail the classification of four types of Disaster for the case study of “The Nisarg Cyclone”. [10 marks] #### Answer **Chain:** natural → atmospheric/hydrometeorological → wind, rain and possible coastal inundation affecting air, water, land and society → local/regional impact within India. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. Nisarga made landfall in Maharashtra on 3 June 2020. Its affected footprint and coordination needs determine the administrative level; the occurrence of a cyclone does not automatically make it a global disaster. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q3B · Prepare at least five Do’s and Don’ts draft for training of preparedness for Floods. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. Prepare at least five Do’s and Don’ts draft for training of preparedness for Floods. [10 marks] #### Answer ## Five dos and five don’ts for flood response | Do — action and reason | Do not — unsafe action and reason | | --- | --- | | Act on official warnings and use designated safe ground; flood conditions can change quickly. | Do not wait beside a river, shore, drain or underpass to watch water rise. | | Use an assessed safe route and arrange assistance for people who need it. | Do not walk, swim or drive through floodwater; currents and hidden damage are difficult to judge. | | Carry essential medicines and communication items if doing so does not delay escape. | Do not return for replaceable belongings once the route is unsafe. | | Report stranded people and electricity hazards to trained services from a safe location. | Do not touch fallen wires or attempt an untrained water rescue. | | Follow verified updates and return only after clearance; water can remain contaminated. | Do not assume receding water means buildings, roads or drinking-water supplies are safe. | For coastal flooding, move beyond the mapped inundation area to designated safe inland or high-ground locations. For flash flooding, act promptly because warning time may be very short. The route must be safe for the actual hazard, not merely the shortest route. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q4A · Describe in detail any four types of impact observed in reference to topography and g… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Describe in detail any four types of impact observed in reference to topography and ground profiling due to earthquake. [10 marks] #### Answer **Definition.** Earthquake damage results from shaking and ground failure, followed in some cases by cascading hazards such as fire, landslides and tsunami. | Effect | Mechanism | Consequence | | --- | --- | --- | | Ground shaking | Seismic waves accelerate the ground. | Structures experience inertia forces and may crack or collapse. | | Surface rupture | Fault displacement reaches the surface. | Roads, pipelines and foundations crossing the rupture may break. | | Liquefaction | Shaking raises pore-water pressure in susceptible saturated loose soils. | Soil loses effective strength; structures can settle or tilt. | | Landslide / rockfall | Shaking destabilises slopes. | Settlements and roads may be buried or cut off. | | Tsunami | Some undersea earthquakes displace the water column. | Coastal inundation; not every earthquake generates a tsunami. | | Fire and leaks | Utilities or industrial equipment break. | Fire, contamination and loss of water or power. | ## Impacts in an exam answer **Physical:** building and lifeline damage. **Social:** death, injury, displacement, disrupted education and trauma. **Economic:** direct repair losses and indirect loss of production or wages. **Ecological:** slope disturbance, habitat damage and contamination. Disease risk can increase where safe water, sanitation and healthcare fail; an epidemic is not inevitable after every earthquake. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q4B · Illustrate in detail with neat sketch Disaster Scale citing suitable examples for eac… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Illustrate in detail with neat sketch Disaster Scale citing suitable examples for each level of the scale. Also state its significance. [10 marks] #### Answer **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q5A · Describe in detail application of Modes of Early Warning System in Disaster Managemen… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. Describe in detail application of Modes of Early Warning System in Disaster Management of Earthquakes. [10 marks] #### Answer **Definition.** An early warning system links risk knowledge, hazard monitoring and forecasting, warning communication, and preparedness so people can act before or during the early stages of dangerous impacts. Swipe across the diagram to read its labels ↔ ![Warning must reach the person who needs to act](https://deep-learning-study-room.vercel.app/dm/fig/warning-chain.6950d12628.svg) Diagram: Warning must reach the person who needs to act. Labels: Warning must reach the person who needs to act | Warning must reach the person who needs to act | 1 · Know risk | Who is exposed? | 2 · Monitor | Detect and forecast | 3 · Communicate | Trusted action | message | 4 · Act | Safe route and | shelter | Continuous review: did the message reach everyone, and could they act? A sensor alone is not an early warning system. Every link must work, including the last mile to people. | Component | Question answered | Flood example | | --- | --- | --- | | Risk knowledge | Who and what can be harmed? | Map low-lying settlements and people needing assistance. | | Monitoring and forecasting | What is developing and when might it affect us? | Combine rainfall, river gauges and forecast models. | | Warning communication | What should people understand and do? | Send an official message naming places, timing and safe actions. | | Preparedness / response capacity | Can people act on the message? | Open shelters and use rehearsed evacuation arrangements. | ## Where monitoring and evaluation fit Evaluate accuracy, lead time, coverage, comprehension and actual response; improve the system after drills and real events. The lecture groups the first two components under “risk knowledge and monitoring” and lists evaluation as a fourth level. The widely used four-pillar model above separates risk knowledge from forecasting and treats evaluation as continuous. Both descriptions require communication and action. **Definition.** Earthquake risk reduction combines safe construction, non-structural safety, preparedness and coordinated response. Precise earthquake prediction is not a dependable safety strategy. ## Before shaking - Get qualified assessment of vulnerable structures; retrofit where needed and enforce safe design. - Secure shelves, cylinders and heavy objects; keep heavy items low. - Prepare a family communication plan, emergency kit and accessible evacuation arrangements. Practise Drop, Cover and Hold On. ## During shaking Indoors, **Drop, Cover and Hold On**: get low, protect your head and neck under sturdy cover where possible, and hold on. Keep away from glass. Do not rush towards stairs or lifts while the building is shaking. Outdoors, move away from buildings and overhead lines if safe. In a vehicle, stop in a safe clear place away from bridges and hazards and remain inside until shaking stops. ## After shaking Expect aftershocks. Leave a damaged building by a safe route when shaking stops; do not use lifts or re-enter until cleared. Avoid damaged utilities and flames near suspected gas leaks. Follow official information. On a threatened coast, strong or long shaking is a reason to follow tsunami evacuation procedures without waiting at the beach. ## Agency responsibilities 1. **Response:** rapid assessment, search and rescue, emergency care, firefighting, accessible shelter, communication and restoration of critical services. 2. **Recovery:** inspect and repair lifelines, restore housing and livelihoods, support mental health, and document damage. 3. **Mitigation:** revise unsafe siting and strengthen critical buildings rather than reproduce previous weaknesses. ## Cordon-off zones A cordon is a controlled boundary around a dangerous site. Authorities assess hazards, mark the perimeter, create controlled access points, communicate restrictions and keep responder routes clear. Exclusion zones keep the public away from high danger; restricted zones permit specified authorised tasks; safe assembly areas provide refuge. Distances depend on the incident. Do not treat “gold, silver and bronze” as universal fixed-distance hazard rings: those terms are also used for command levels. Earthquake early warning detects a rupture that has already begun and may warn some locations before strong shaking arrives. It is not a prediction of an earthquake days in advance, and nearby locations may receive little or no useful warning. Earthquake early warning detects a rupture already in progress and may provide seconds before strong shaking at some locations. It is not reliable advance prediction of the exact earthquake date, place and magnitude. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q5B · Discuss in detail at least 10 significances of Mitigation in a Seismic Zone prone to … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Discuss in detail at least 10 significances of Mitigation in a Seismic Zone prone to frequent Earthquakes. [10 marks] #### Answer ## Ten significances of mitigation in an earthquake-prone area 1. **Life safety.** Suitable seismic design reduces collapse risk and deaths. 2. **Fewer injuries.** Anchoring ceilings, shelves and equipment reduces falling-object injuries. 3. **Lower structural damage.** Competent assessment and retrofitting improve vulnerable buildings. 4. **Continuity of healthcare.** Strengthened hospitals and secured equipment support emergency treatment. 5. **Protected lifelines.** Appropriate protection of water, power and communications reduces cascading outages. 6. **Reduced secondary hazards.** Safer utility connections and protected hazardous materials reduce fire or release risks. 7. **Maintained access.** Resilient bridges and roads preserve rescue and relief routes. 8. **Lower household and business losses.** Damage reduction limits displacement, stock loss and business interruption. 9. **Fairer protection.** Prioritising vulnerable housing, schools and essential services protects people with fewer coping resources. 10. **Safer long-term development.** Seismic land-use decisions and sustained building-code implementation avoid recreating preventable vulnerability. Mitigation reduces likely consequences; it cannot prevent tectonic fault movement or make every structure earthquake-proof. Measures require competent design, implementation and maintenance. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q6A · Discuss in brief Uttarakhand Floods 2013 Disaster. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Discuss in brief Uttarakhand Floods 2013 Disaster. [10 marks] #### Answer ## Four interacting causes and risk factors 1. **Extreme rainfall.** Intense, sustained rainfall produced rapid runoff and high river flows. 2. **Steep and fragile terrain.** Steep slopes, erodible material and narrow valleys encouraged landslides, debris movement and fast flows. 3. **River and debris processes.** Sediment, debris and channel changes increased destructive force and could obstruct or redirect flow; local lake-related processes affected the Kedarnath area. 4. **Exposure and vulnerable development.** Settlements, roads and pilgrimage activity in hazardous places increased losses and complicated rescue when links failed. ## River interlinking: conditional role 1. **Possible diversion.** A suitably designed transfer can divert part of a high flow to a basin with spare capacity. The receiving basin must not itself be flooded. 2. **Storage and timing.** Reservoirs and detention associated with a scheme can hold some inflow and release it later. Benefits depend on available storage and forecasts, not merely the existence of a canal. 3. **Coordinated basin operation.** Operating rules, monitoring and communication can reduce poorly timed releases and support balanced water use. 4. **Limits and safeguards.** Conveyance capacity, extreme rainfall, ecological effects, sediment, social impacts and downstream risk require assessment. A transfer can shift risk rather than remove it. 5. **Mountain flash-flood limitation.** Short, intense rainfall, debris flows and slope failures such as those in Uttarakhand require local and basin risk measures. It is not established that river interlinking would have prevented the 2013 disaster. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q6B · Describe in detail how GIS can be beneficial in real-time tsunami monitoring. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Describe in detail how GIS can be beneficial in real-time tsunami monitoring. [10 marks] #### Answer For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. For monitoring, GIS can display incoming seismic/ocean observations, modelled arrival/inundation information and affected coastlines. The sensors measure the phenomenon; GIS combines and presents geographically referenced information for decisions. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q7A · Discuss in detail application of GIS in Response for Floods Disaster management citin… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Discuss in detail application of GIS in Response for Floods Disaster management citing at least 5 examples. [10 marks] #### Answer For river flood management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Overlay flood extent/depth, terrain and development to support floodplain zoning, storage planning and protection of critical facilities. 2. **Preparedness.** Map forecasts, vulnerable settlements, shelters and alternate evacuation routes; rehearse responses to road and bridge closures. 3. **Response.** Update inundation and accessibility maps, locate stranded people and allocate boats, supplies and medical teams using verified field reports. 4. **Recovery.** Map damage and losses, track restoration of roads and water supply, prioritise rebuilding and check that reconstructed assets are less exposed. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. 1. **Extent.** Map verified inundation. 2. **Access.** Identify closed and usable routes. 3. **People.** Locate stranded or isolated communities. 4. **Resources.** Map boats, teams, shelters and hospitals. 5. **Priorities.** Match urgent needs to suitable resources and update as conditions change. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · Q7B · Describe in detail any five preventive measures for Droughts reoccurrence. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2023-02-07--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2023-02-07/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Describe in detail any five preventive measures for Droughts reoccurrence. [10 marks] #### Answer 1. **Conserve rainfall and restore watersheds.** Use suitable rainwater harvesting, contour measures and recharge work. Site-specific geology and maintenance determine whether water can be stored or recharge groundwater effectively. 2. **Use water efficiently.** Repair leaks, use appropriate irrigation scheduling and adopt efficient systems where suitable. Saving water at one point should be reflected in an overall water budget rather than expansion that cancels the saving. 3. **Plan crops and livelihoods.** Choose crops and sowing decisions suited to local water availability; diversify income where feasible. This reduces dependence on a single water-intensive crop or season. 4. **Monitor shortages and manage demand.** Track rainfall deficits, soil moisture, reservoir levels and groundwater. Prioritise drinking water, protect essential services and agree fair allocation before supplies become critical. 5. **Prepare community support.** Communicate advisories, arrange safe emergency drinking-water supply and fodder, and support vulnerable livelihoods. Emergency relief addresses immediate suffering while long-term measures reduce the next drought’s impacts. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. --- ## TEE · Q1A · Differentiate between Disaster and Hazard citing any two relevant examples. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q1a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1A. Differentiate between Disaster and Hazard citing any two relevant examples. [4 marks] #### Answer **Definition.** A hazard is a potentially harmful process, phenomenon or human activity. A disaster is a serious disruption of a community caused when hazardous events interact with exposure, vulnerability and limited capacity. ## One example, from cause to consequence Heavy rain is a hazard. People living beside an overflowing drain are exposed. Weak houses and blocked drainage increase vulnerability. Rescue boats, warnings and safe shelters increase capacity. If flooding seriously disrupts lives, services and livelihoods, the event becomes a disaster. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. A hazard becomes a disaster through its interaction with exposed, vulnerable people and assets. Capacity changes the outcome. | Term | Meaning | Flood example | | --- | --- | --- | | Hazard | What can cause harm? | Heavy rainfall / high river flow | | Exposure | Who or what is in the affected place? | Homes beside the river | | Vulnerability | Why can those exposed suffer damage? | Weak houses; limited mobility; poor drainage | | Capacity | What strengths help manage the threat? | Warnings, shelters, trained rescue teams | | Disaster risk | Potential losses before the event occurs | Possible deaths, damage and disruption | | Disaster | Serious disruption when the event occurs | Homes inundated and essential services overwhelmed | A second example: fault rupture and resulting shaking are hazards; severe building damage, injuries and service disruption affecting a community constitute an earthquake disaster. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q1B · Elaborate the role of Early Warning System for Cyclone Disaster Management. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q1b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1B. Elaborate the role of Early Warning System for Cyclone Disaster Management. [4 marks] #### Answer **Definition.** Cyclone warnings provide advance information on likely coastal effects, allowing authorities and communities to prepare, evacuate and protect essential services. | Stage | Usual lead time in the lecture | What it supports | | --- | --- | --- | | Pre-cyclone watch | About 72 hours before adverse weather | Initial readiness and review of plans. | | Cyclone alert | About 48 hours before adverse weather | Mobilise resources, shelters and evacuation arrangements. | | Cyclone warning | About 24 hours before adverse weather | Implement protective action based on the latest official advice. | | Post-landfall outlook | About 12 hours before landfall | Prepare inland areas for expected track and adverse weather after landfall. | The name **post-landfall outlook** describes the period forecast, not the time at which it is issued. Its 12-hour lead is before landfall. Forecasts can be updated as the storm develops. Cyclones can be forecast days ahead, with uncertainty; the claim that advance forecasts are impossible is incorrect. ## Before impact Follow official warnings; move from unsafe coastal areas to designated shelters when instructed. Arrange transport for people needing assistance, carry essential medicines and documents, secure loose objects, and prepare backup lighting and communication. Fishermen should follow official sea warnings. ## During and after Remain in a safe shelter away from glass, avoid travel and floodwater, and follow official instructions. A temporary calm may be the eye; it does not mean the storm is over. Wait for official clearance before returning; avoid damaged structures, lines and contaminated water. For cyclone risk, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) --- ## TEE · Q1C · Discuss in detail four key NGOs in Disaster Management. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1c/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q1c Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1C. Discuss in detail four key NGOs in Disaster Management. [4 marks] #### Answer NGOs can complement public authorities through local knowledge, relief, inclusion, training and recovery. They should coordinate needs assessment, avoid duplication and remain accountable to affected people. 1. **SEEDS.** Works on disaster response, resilience, community skills and safer built environments. 2. **Goonj.** Connects material relief and community-led work with dignity and recovery needs. 3. **ActionAid Association.** Supports inclusive emergency preparedness, response and recovery, with attention to marginalised communities. 4. **CARE.** Provides humanitarian support across emergencies, including essential needs and recovery activities through its programmes and partners. An NGO is not the incident-command authority merely because it provides relief. Clear roles and coordination with designated authorities are necessary. #### Illustrative application · Local knowledge in a response plan Residents can identify an elderly neighbour needing assistance and a lane that becomes inaccessible in rain. Authorities and trained volunteers can incorporate that knowledge into routes and assistance plans. Participation contributes practical information; it does not replace professional hazard assessment. --- ## TEE · Q1D · Discuss with examples in brief any four Ethical Principles of Disaster Management. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1d/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q1d Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1D. Discuss with examples in brief any four Ethical Principles of Disaster Management. [4 marks] #### Answer Ethical principles protect life and dignity, improve trust and coordination and prevent unfair treatment or avoidable harm. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q1E · Elaborate the four points of difference in Training manual for Tsunami and Cyclone Di… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q1e/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q1e Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q1E. Elaborate the four points of difference in Training manual for Tsunami and Cyclone Disaster Management. [4 marks] #### Answer | Training item | Tsunami | Cyclone | | --- | --- | --- | | Trigger and lead time | Recognise official alerts and natural signs; nearby sources can give very little time. | Follow progressively updated cyclone forecasts and warnings, often with longer preparation time. | | Movement | Rehearse rapid movement to designated high ground/inland safe areas. | Rehearse early evacuation to cyclone-safe shelters before routes become unsafe. | | Shelter and hazards | Avoid mapped inundation areas and expect several waves. | Protect against wind, flying debris, storm surge and rain flooding. | | Return | Wait for the tsunami all-clear; the first wave may not be largest. | Wait for official clearance and do not mistake the eye’s calm for safety. | Both manuals need accessible routes, accountability, essential supplies, family contacts and arrangements for people needing assistance. Local hazard maps determine actual safe destinations. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q2A · Describe in detail the Equation of Disaster and detail each component of the equation… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q2a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q2a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2A. Describe in detail the Equation of Disaster and detail each component of the equation citing an example. [10 marks] #### Answer **Definition.** Disaster risk is the potential loss associated with a hazardous event and the exposed, vulnerable system. A classroom index can illustrate how hazard, vulnerability and capacity interact; it is not automatically a real probability. $$ R\propto\frac{H\times V}{C} $$ $$ R_{index}=\frac{H\times E\times V}{C}\quad\text{if exposure is explicitly included} $$ H is hazard, V vulnerability, E exposure and C capacity. More hazard/exposure/vulnerability generally increases potential loss; stronger capacity can reduce it. Scores must be defined and comparable; do not mix rupees, people and undefined scores and call the result a probability. A separate expected-loss model is probability × consequence when probability and consequence are clearly given. ## Explain each component with one connected flood example | Component | Meaning | Example | | --- | --- | --- | | Hazard | Potentially damaging event or process. | Intense rainfall and rising river water. | | Exposure | People and assets in the affected location. | Homes, roads and a hospital on the floodplain. | | Vulnerability | Conditions that make exposed elements susceptible to loss. | Weak housing, blocked drainage and inaccessible evacuation transport. | | Capacity | Available strengths for reducing risk and managing impacts. | Maintained drains, warnings, trained teams and accessible shelters. | ## Interpret the equation For otherwise comparable conditions, greater hazard, exposure or vulnerability increases potential loss; stronger capacity can reduce it. Heavy rain over an uninhabited area and equally heavy rain over a densely populated settlement do not have the same disaster risk. A disaster occurs when the event seriously disrupts the exposed community; the relationship does not define a universal numerical threshold. ## Significance for management 1. Identify the hazard and who or what is exposed before selecting measures. 2. Reduce vulnerability through safer construction and accessible services. 3. Reduce exposure by appropriate land-use planning. 4. Increase capacity through warning, training, shelters and coordination. 5. Review the assessment as conditions and available information change. The original 1 December 2022 Q2A asks for the equation, its components and an example. It supplies no numbers and does not ask for a calculation. The explanation above answers that theory requirement. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q2B · Prepare at least five Do’s and Don’ts draft for training of preparedness for Cyclone. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q2b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q2b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q2B. Prepare at least five Do’s and Don’ts draft for training of preparedness for Cyclone. [10 marks] #### Answer | Do | Do not | | --- | --- | | Monitor official forecasts and follow evacuation instructions. | Do not go out to sea or remain in restricted coastal areas against advisories. | | Prepare safe shelter, essentials and support for people needing help. | Do not delay evacuation to protect replaceable belongings. | | Stay away from windows in suitable shelter. | Do not treat a calm eye as the end of the storm. | | Avoid flooded roads, fallen wires and damaged trees. | Do not cross floodwater or touch electrical hazards. | | Use verified information and wait for clearance before returning. | Do not spread rumours or enter damaged buildings without assessment. | Preparedness starts before strong winds and flooding make travel unsafe. Identify the designated shelter and route early; decisions depend on official local instructions and actual conditions. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q3A · Establish and explain in detail the classification of four types of Disaster for the … Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q3a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q3a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3A. Establish and explain in detail the classification of four types of Disaster for the case study of “The Bhopal Gas Tragedy”. [10 marks] #### Answer **Classification chain:** human-induced → industrial chemical release → primarily air contamination and human exposure → local/regional impact with wider national consequences. The lecture labels the regional/state category “domicile”. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. --- ## TEE · Q3B · Discuss in detail at least 10 key responsibilities of Emergency response person in ca… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q3b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q3b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q3B. Discuss in detail at least 10 key responsibilities of Emergency response person in case of Tsunami Disasters. [10 marks] #### Answer 1. **Establish a safe situation picture.** Verify the incident, hazard and affected area before committing people or resources. 2. **Activate agreed arrangements.** Notify authorities and use the designated incident structure and contact procedures. 3. **Assess people and services at risk.** Identify critical facilities and groups needing assistance. 4. **Coordinate resources.** Request appropriate trained teams, transport, equipment and medical support. 5. **Control unsafe access.** Establish suitable cordons and protect escape and emergency access routes. 6. **Communicate clearly.** Send structured, time-stamped updates with confirmed facts and uncertainties. 7. **Support evacuation and accountability.** Arrange safe movement, assistance and headcounts; report missing people. 8. **Protect responders.** Check competence, PPE, communications, rest and changing hazards. 9. **Support relief and service restoration.** Coordinate water, shelter, urgent care and lifeline restoration with responsible agencies. 10. **Record, review and improve.** Maintain records and feed lessons into recovery, plans and future training. | Do | Do not | | --- | --- | | Move promptly to designated safe high ground or inland on official or natural warning. | Do not go to the shore to watch unusual sea behaviour. | | Learn and practise evacuation routes before an event. | Do not wait for a phone alert after strong/long coastal shaking if natural warning demands immediate action. | | Assist others along safe routes without entering danger. | Do not assume ordinary buildings or parked cars provide suitable tsunami protection. | | Stay in the safe area and monitor verified advice. | Do not return after the first wave; more waves may follow. | | Return only after official clearance and avoid damaged services. | Do not enter debris-filled water or unstable buildings. | A tsunami is a series of waves. Natural signs can include strong or long coastal shaking, sudden unusual sea-level change or a loud ocean roar; not every tsunami displays every sign at every location. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. --- ## TEE · Q4A · Discuss in brief any five General Principles of Disaster Management with relevant exa… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q4a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q4a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4A. Discuss in brief any five General Principles of Disaster Management with relevant examples. [10 marks] #### Answer Ethical principles protect life and dignity, improve trust and coordination and prevent unfair treatment or avoidable harm. 1. **Solidarity.** People and institutions share the burden of disaster losses. An unaffected district can send trained staff and supplies to an affected district. 2. **Joint responsibility.** Government, businesses, communities and individuals each have duties. A factory maintains safety systems while local authorities prepare off-site response. 3. **Non-discrimination.** Assistance must not depend on caste, religion, gender or political affiliation. Registration and shelter access must be fair and accessible. 4. **Humanity.** Protect life, health and human dignity. Provide water, shelter and urgent care while preventing humiliation or exploitation. 5. **Impartiality.** Allocate assistance according to assessed need and urgency. A severely affected settlement may receive more resources than a less affected one. 6. **Neutrality.** Humanitarian assistance should not take sides in political or other conflicts. Relief distribution must not become political campaigning. 7. **Co-operation.** Agencies share information, resources and responsibilities. Health teams, police, fire services and local volunteers coordinate through agreed arrangements. 8. **Territorial sovereignty.** External assistance respects the affected state’s authority and applicable coordination arrangements. International teams coordinate with designated national authorities. 9. **Prevention.** Take feasible action to reduce foreseeable harm. Safe land use, resilient construction and industrial maintenance reduce avoidable losses. 10. **Role of media.** Communicate verified warnings, protective actions and recovery information. Protect privacy and avoid rumours, sensationalism and disclosure of vulnerable people’s identities. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. --- ## TEE · Q4B · Prepare at least five Do’s and Don’ts draft for training of preparedness for Tsunami. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q4b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q4b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q4B. Prepare at least five Do’s and Don’ts draft for training of preparedness for Tsunami. [10 marks] #### Answer | Do | Do not | | --- | --- | | Move promptly to designated safe high ground or inland on official or natural warning. | Do not go to the shore to watch unusual sea behaviour. | | Learn and practise evacuation routes before an event. | Do not wait for a phone alert after strong/long coastal shaking if natural warning demands immediate action. | | Assist others along safe routes without entering danger. | Do not assume ordinary buildings or parked cars provide suitable tsunami protection. | | Stay in the safe area and monitor verified advice. | Do not return after the first wave; more waves may follow. | | Return only after official clearance and avoid damaged services. | Do not enter debris-filled water or unstable buildings. | A tsunami is a series of waves. Natural signs can include strong or long coastal shaking, sudden unusual sea-level change or a loud ocean roar; not every tsunami displays every sign at every location. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q5A · Describe in detail six stages of Disaster Management citing relevant examples. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q5a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q5a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5A. Describe in detail six stages of Disaster Management citing relevant examples. [10 marks] #### Answer **Definition.** Disaster management is the organised process of preventing or reducing risk, preparing for emergencies, responding to impacts and supporting recovery. Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle The cycle repeats: lessons from recovery must improve prevention and preparedness. | Stage | Meaning | One clear example | | --- | --- | --- | | Prevention | Avoid a risk where possible. | Keep a new school out of an active floodway. | | Mitigation | Reduce the severity of losses. | Strengthen an existing school against shaking. | | Preparedness | Build readiness to act. | Prepare evacuation routes and conduct drills. | | Response | Take urgent life-saving action. | Rescue trapped people and provide emergency shelter. | | Recovery | Restore services and livelihoods. | Restore water, power and access to education. | | Rehabilitation / reconstruction | Restore functioning and rebuild damaged systems more safely. | Rebuild homes to appropriate safety standards. | ## Why some diagrams show four stages The four-stage cycle uses **mitigation → preparedness → response → recovery**. Prevention is treated with risk reduction; rehabilitation and reconstruction are included in recovery. The six-stage version separates them for explanation. These activities overlap; response can begin before impact, for example by evacuating after a cyclone warning. ## Build Back Better Recovery should reduce future risk. Rebuilding the same weak house in the same floodway may restore yesterday’s vulnerability. Safer siting, stronger design, accessible services and restored livelihoods improve resilience. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. --- ## TEE · Q5B · Discuss in detail at least 10 key responsibilities of Emergency response person in ca… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q5b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q5b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q5B. Discuss in detail at least 10 key responsibilities of Emergency response person in case of Earthquake Disasters. [10 marks] #### Answer 1. **Establish a safe situation picture.** Verify the incident, hazard and affected area before committing people or resources. 2. **Activate agreed arrangements.** Notify authorities and use the designated incident structure and contact procedures. 3. **Assess people and services at risk.** Identify critical facilities and groups needing assistance. 4. **Coordinate resources.** Request appropriate trained teams, transport, equipment and medical support. 5. **Control unsafe access.** Establish suitable cordons and protect escape and emergency access routes. 6. **Communicate clearly.** Send structured, time-stamped updates with confirmed facts and uncertainties. 7. **Support evacuation and accountability.** Arrange safe movement, assistance and headcounts; report missing people. 8. **Protect responders.** Check competence, PPE, communications, rest and changing hazards. 9. **Support relief and service restoration.** Coordinate water, shelter, urgent care and lifeline restoration with responsible agencies. 10. **Record, review and improve.** Maintain records and feed lessons into recovery, plans and future training. ## Seven dos 1. **Drop, Cover and Hold On.** During shaking indoors, protect yourself under suitable sturdy cover and hold on; if cover is unavailable, protect your head and neck where you are. 2. **Stay clear of falling objects.** Keep away from windows, tall unsecured furniture and damaged partitions. 3. **If outdoors, seek open space.** Keep clear of buildings, trees, poles and wires without moving into another hazard. 4. **If driving, stop safely.** Pull over away from bridges, overpasses and wires where safe and remain in the vehicle until shaking stops. 5. **Move carefully after shaking.** When safe, use designated exits and stairs, expecting aftershocks and debris. 6. **Account and report.** Check on people, report injuries or trapped people and follow the instructions of trained responders. 7. **Follow official updates.** Keep clear of unsafe structures and respond appropriately if you are near a coast and notice tsunami warning signs. ## Three don’ts 1. **Do not rush outside while shaking.** Falling glass and masonry can make exits and building edges dangerous. 2. **Do not use lifts.** Power loss or damage can trap occupants. 3. **Do not re-enter damaged buildings without clearance.** Aftershocks and hidden structural damage can cause collapse. #### Illustrative application · A classroom earthquake illustration A fault begins to rupture below ground at the focus. The surface point vertically above it is the epicentre. Waves spread outward and shake buildings; the damage also depends on local ground and construction. Use the labelled diagram in the earthquake chapter to connect these terms. --- ## TEE · Q6A · Discuss in detail with relevant case-study examples four types of Floods. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q6a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q6a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6A. Discuss in detail with relevant case-study examples four types of Floods. [10 marks] #### Answer **Definition.** A flood is the inundation of normally dry land by water. It may result from river overflow, intense rainfall, inadequate drainage, storm surge or sudden release of stored water. ## Two separate ways of classifying floods | By onset | Meaning | Planning implication | | --- | --- | --- | | Slow-onset | Water rises gradually, often after prolonged rainfall. | There may be time for planned evacuation, but long duration disrupts livelihoods. | | Rapid-onset | Water rises over a comparatively short period. | Warnings and prompt action become critical. | | Flash flood | Very rapid rise, often within minutes to a few hours of the trigger. | Little lead time; fast flow and debris can be highly destructive. | | By source | How it develops | | --- | --- | | River / fluvial | River discharge exceeds channel capacity and water spreads over its floodplain. | | Urban / pluvial | Rainfall runoff exceeds drainage or infiltration capacity; a river need not overflow. | | Dam-breach | Dam failure releases reservoir water suddenly downstream. | | Coastal surge | Wind and low pressure raise sea level; high tide can compound flooding. | | GLOF | Sudden release from a glacial lake, for example after its retaining barrier fails. | “Flash” describes speed, whereas “dam-breach” describes the source. A dam-breach flood may therefore also be a flash flood. Onset speed and total flood duration are different; a rapidly starting event may leave some areas inundated for much longer. The PPT uses “rapid” and “flash” inconsistently, so describe the actual time-scale instead of forcing a rigid universal duration. **Indian examples:** monsoon river floods in Assam illustrate river flooding; Mumbai in July 2005 illustrates severe urban flooding; Panshet in 1961 illustrates dam-failure flooding; coastal inundation during a cyclone illustrates coastal flooding. Uttarakhand in June 2013 included rapid mountain floods and debris flows. Source and speed of onset are different classification axes. ## Keep source and onset classifications separate | Classification axis | Type | Indian example and explanation | | --- | --- | --- | | Source | River flood | Assam monsoon river flooding: rivers overflow or inundate adjacent low-lying land. | | Source | Urban / surface-water flood | Mumbai, July 2005: exceptional rainfall combined with drainage and urban vulnerabilities. | | Source | Dam-failure flood | Panshet, 1961: failure released stored water downstream. | | Source | Coastal flood | The 1999 Odisha super cyclone produced destructive storm-surge inundation along the coast. | | Onset / duration | Slow-onset or sustained flood | Seasonal Assam/Brahmaputra flood episodes can build and persist over days. The actual timing varies by event and location. | | Onset / duration | Rapid-onset / flash flood | Uttarakhand, June 2013 included rapidly developing mountain floods and debris flows. A flash flood describes rapid onset, not a separate water source. | One event can occupy both classifications: a sudden dam-break flood is a source-defined dam-failure flood and a rapid-onset flood. Do not treat “river” and “slow” as mutually exclusive categories or assume every river flood develops slowly. Coastal-case source: [NDMA cyclone-management guidelines, hosted by NIDM](https://nidm.gov.in/pdf/guidelines/cyclones.pdf), discussion of storm surge and inland inundation during the October 1999 Odisha cyclone. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q6B · Prepare at least five Do’s and Don’ts draft for training of preparedness for Cyclone. Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q6b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q6b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q6B. Prepare at least five Do’s and Don’ts draft for training of preparedness for Cyclone. [10 marks] #### Answer | Do | Do not | | --- | --- | | Monitor official forecasts and follow evacuation instructions. | Do not go out to sea or remain in restricted coastal areas against advisories. | | Prepare safe shelter, essentials and support for people needing help. | Do not delay evacuation to protect replaceable belongings. | | Stay away from windows in suitable shelter. | Do not treat a calm eye as the end of the storm. | | Avoid flooded roads, fallen wires and damaged trees. | Do not cross floodwater or touch electrical hazards. | | Use verified information and wait for clearance before returning. | Do not spread rumours or enter damaged buildings without assessment. | Preparedness starts before strong winds and flooding make travel unsafe. Identify the designated shelter and route early; decisions depend on official local instructions and actual conditions. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. --- ## TEE · Q7A · Describe in detail with neat sketches the significance of Cordon-off zones for Disast… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q7a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q7a Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7A. Describe in detail with neat sketches the significance of Cordon-off zones for Disaster Management of River Floods. [10 marks] #### Answer A **river-flood cordon** is a controlled access boundary around assessed inundation, unstable banks, damaged crossings or other flood hazards. It follows the changing flood footprint and safe routes, not a universal circular radius. Swipe across the diagram to read its labels ↔ ![River flood: control access around the flood footprint](https://deep-learning-study-room.vercel.app/dm/fig/river-cordon.22669aea6f.svg) Diagram: River flood: control access around the flood footprint. Labels: River flood: control access around the flood footprint | River flood: control access around the flood footprint | Restricted floodplain | River | Safe assembly area | Outside assessed inundation; | headcounts and support. | Controlled entry | Authorised rescue access; close | unsafe roads. | Assessed safe route | Dashed boundary: review water levels, erosion, bridges and utilities. Not to scale. Top view: the restricted floodplain follows the river; the safe assembly area is outside the assessed inundation zone. Not to scale. 1. **Identify the restricted area.** Use forecast and observed water levels, inundation maps and field reports. Include erosion, damaged bridges, electricity and contamination where relevant. 2. **Control access.** Place barriers and trained personnel at unsafe roads and crossings. Permit only authorised, suitably equipped teams through managed entry points. 3. **Preserve safe evacuation and rescue routes.** Keep public evacuation and emergency access clear; reassess routes as water levels and bridge conditions change. 4. **Organise safe support outside the cordon.** Locate reception, headcounts, first aid, shelter coordination and command outside the assessed flood danger. 5. **Review and reopen safely.** Move the boundary as the flood footprint changes. Reopen only after competent checks of water, roads, structures and utilities; receding water alone is insufficient. Example: a riverside road and damaged bridge are closed while an assessed dry route leads residents to a designated safe assembly point. This illustrative layout explains the function of the cordon; it is not a map or a prescribed evacuation distance. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) --- ## TEE · Q7B · Discuss in detail application of GIS in drought-prone area mapping for drought manage… Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2022-12-01--q7b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/papers/paper-2022-12-01/q7b Actual older TEE paper · 100 marks · Q1 compulsory; any four of Q2–Q7 ### Q7B. Discuss in detail application of GIS in drought-prone area mapping for drought management. [10 marks] #### Answer GIS links information to location, allowing drought indicators and affected people to be analysed together. Remote sensing supplies repeated observations; field verification is still needed. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Combine hazard indicators, exposure and resources to support decisions. 1. **Map rainfall deficits.** Compare rainfall with the local long-term pattern and map persistent deficits. For example, identify districts with deficient seasonal rainfall rather than applying one national rainfall threshold. 2. **Observe soil and vegetation.** Use soil-moisture information and vegetation indicators to locate crop stress. Ground observations help separate drought stress from disease, land-use change or poor data. 3. **Map available water.** Locate reservoirs, wells, streams and supply systems and track their condition. Overlay settlements to identify people far from reliable drinking-water sources. 4. **Assess vulnerability.** Combine rain-fed cultivation, livestock, poverty and access data with hazard indicators. Two equally dry areas can need different support because livelihood and service conditions differ. 5. **Prioritise and monitor action.** Select recharge, supply and livelihood interventions and map their progress. For example, direct emergency water to poorly served settlements while planning long-term watershed work. 6. **Communicate limitations.** Show data dates, uncertainty and update schedules. A map supports judgement; it does not automatically prove a village has water or that an individual household received relief. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) --- ## TEE · TEE mock A Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/mocks/tee-mocks--paper-a/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/mocks/tee-mocks/paper-a New 100-mark practice papers using the observed recent choice pattern **100 marks · 3 hours.** Q1(a–d) compulsory; attempt any four complete questions from Q2–Q7. Each complete question carries 20 marks. This is a newly written practice paper, not a PYQ. All answers are shown below their questions. ### Q1(a). Define hazard, exposure, vulnerability, capacity and disaster risk. [5 practice marks] #### Answer **Definition.** A hazard is a potentially harmful process, phenomenon or human activity. A disaster is a serious disruption of a community caused when hazardous events interact with exposure, vulnerability and limited capacity. ## One example, from cause to consequence Heavy rain is a hazard. People living beside an overflowing drain are exposed. Weak houses and blocked drainage increase vulnerability. Rescue boats, warnings and safe shelters increase capacity. If flooding seriously disrupts lives, services and livelihoods, the event becomes a disaster. Swipe across the diagram to read its labels ↔ ![Why the same hazard causes different losses](https://deep-learning-study-room.vercel.app/dm/fig/risk-chain.ced919a55d.svg) Diagram: Why the same hazard causes different losses. Labels: Why the same hazard causes different losses | Why the same hazard causes different losses | Hazard | The potentially harmful | event | Exposure | People and assets in its path | Vulnerability | Conditions that increase | harm | Potential disaster losses | Serious disruption if impacts | overwhelm coping ability | Capacity | Warnings, skills, services | and resources | More capacity can | reduce harm. A hazard becomes a disaster through its interaction with exposed, vulnerable people and assets. Capacity changes the outcome. | Term | Meaning | Flood example | | --- | --- | --- | | Hazard | What can cause harm? | Heavy rainfall / high river flow | | Exposure | Who or what is in the affected place? | Homes beside the river | | Vulnerability | Why can those exposed suffer damage? | Weak houses; limited mobility; poor drainage | | Capacity | What strengths help manage the threat? | Warnings, shelters, trained rescue teams | | Disaster risk | Potential losses before the event occurs | Possible deaths, damage and disruption | | Disaster | Serious disruption when the event occurs | Homes inundated and essential services overwhelmed | #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Q1(b). Explain why training and drills are needed. [5 practice marks] #### Answer ## Need 1. **Convert knowledge into action.** People may know an alarm exists but still not know which exit or assembly point to use. Training explains the procedure; a drill rehearses it. 2. **Reduce confusion.** Assigned roles and rehearsed communication reduce duplicated work and missed responsibilities. 3. **Identify weaknesses.** A drill can reveal blocked exits, inaudible alarms, inaccessible routes and inaccurate contact lists. 4. **Include all occupants.** Visitors and people needing assistance must be included in plans rather than assumed to evacuate independently. ## Objectives 1. **Practise safe behaviour.** Participants recognise the warning and follow the correct protective procedure. 2. **Test coordination and accountability.** Wardens, emergency services and occupants communicate and account for people at the assembly point. 3. **Improve the plan.** Observers record delays and gaps; organisers assign corrections and repeat the exercise to verify improvement. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. ### Q1(c). Give five points about the Bhopal gas tragedy. [5 practice marks] #### Answer 1. **Event and setting:** A major toxic gas release occurred at the Union Carbide pesticide plant in Bhopal during the night of 2–3 December 1984. 2. **Causes and vulnerability:** Release of methyl isocyanate and failures of industrial safety and preparedness exposed nearby communities. 3. **Impacts:** Severe acute harm, long-term health and social consequences, and difficult compensation and environmental questions. 4. **Response and recovery:** Emergency medical response and long-term care and relief; the event exposed weaknesses in chemical risk communication and regulation. 5. **Lessons:** Maintain safety systems; assess off-site risk; coordinate industry, hospitals and authorities; disclose hazard information; practise response; provide accountable long-term recovery. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. ### Q1(d). Explain two ways to communicate a cyclone warning. [5 practice marks] #### Answer For cyclone risk, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Q2(a). Explain earthquake causes and three types of seismic waves with sketches. [10 practice marks] #### Answer **Definition.** An earthquake is ground shaking caused by a sudden release of stored energy in the Earth. Most destructive earthquakes result from sudden slip on a fault, sending out seismic waves. ## Build the idea one step at a time 1. The outer rigid Earth is divided into **tectonic plates**. Their slow relative movement loads rocks with stress. 2. A **fault** is a fracture or zone of fractures along which rock blocks can move. Friction can temporarily lock the blocks. 3. The rocks deform and store elastic energy. When stress exceeds the resistance to slip, the fault moves suddenly. This is the elastic-rebound explanation. 4. Energy travels outward as **seismic waves**. These cause shaking at the surface. The waves carry the released energy; they are not the original tectonic cause. Swipe across the diagram to read its labels ↔ ![Focus, epicentre and a slipping fault](https://deep-learning-study-room.vercel.app/dm/fig/earthquake.46adac0128.svg) Diagram: Focus, epicentre and a slipping fault. Labels: Focus, epicentre and a slipping fault | Focus, epicentre and a slipping fault | Fault plane | Epicentre: surface above focus | Focus: rupture begins within Earth | Surface | Waves spread from the source; shaking effects vary with local conditions. Focus is inside the Earth; epicentre is the surface point directly above it. Fault rupture can extend far beyond the starting point. | Word | Meaning | | --- | --- | | Focus / hypocentre | The point inside the Earth where rupture begins. | | Epicentre | The point on the surface vertically above the focus. | | Focal depth | Vertical distance from the surface to the focus. | | Foreshock / mainshock / aftershock | Smaller preceding event, largest event in a sequence, and subsequent events; “foreshock” is usually identified retrospectively. | Swipe across the diagram to read its labels ↔ ![Three plate-boundary movements](https://deep-learning-study-room.vercel.app/dm/fig/boundaries.8b6b55444b.svg) Diagram: Three plate-boundary movements. Labels: Three plate-boundary movements | Three plate-boundary movements | Convergent | Divergent | Transform | Separation / rising material | Compression | Extension | Shear Convergent: move together. Divergent: move apart. Transform: slide past. Most earthquakes result from sudden fault slip releasing stored strain. Volcanic processes, collapse and certain human activities can also generate earthquakes; seismic waves are the released energy travelling outward, not the underlying tectonic cause. ## Three plate movements that build stress 1. **Convergence.** Plates move together, causing compression, subduction or collision. Locked faults can release stored energy suddenly. 2. **Divergence.** Plates separate and the crust extends. Faulting associated with extension can generate earthquakes. 3. **Transform motion.** Plates slide past one another. Friction can lock parts of a fault until stress overcomes resistance and slip occurs. **Definition.** Seismic waves are disturbances carrying earthquake energy. Body waves travel through the Earth; surface waves propagate along its surface. Swipe across the diagram to read its labels ↔ ![Seismic waves: compare particle motion](https://deep-learning-study-room.vercel.app/dm/fig/waves.3b808bf75c.svg) Diagram: Seismic waves: compare particle motion. Labels: Seismic waves: compare particle motion | Seismic waves: compare particle motion | P wave · body wave | Push and pull parallel to travel: alternating compression and expansion. | S wave · body wave | Shearing motion perpendicular to the direction of wave travel. | Love wave · surface wave | Horizontal side-to-side shear, shown here from above. | Rayleigh wave · surface wave | Approximately elliptical rolling motion, shown in a vertical side view. | particle | particle | particle | rolling | travel → | travel → | travel → | travel → | Particle paths illustrate local movement; the wave carries energy onward. Compare the direction of energy travel with the local movement of ground particles. | Wave | Particle movement | Travel / key point | | --- | --- | --- | | P: primary | Compression and expansion parallel to travel direction. | Fastest body wave; travels through solids and fluids. | | S: secondary | Shearing perpendicular to travel direction. | Slower than P; cannot propagate through liquids as shear waves. | | Love | Horizontal side-to-side surface motion. | Surface wave; produces strong lateral shaking. | | Rayleigh | Rolling, approximately elliptical motion in a vertical plane. | Surface wave with vertical and horizontal ground movement. | “Direction of travel” means where wave energy moves. “Particle movement” means how a small part of the ground moves locally. A particle need not travel all the way from the fault to your city. Do not list Love waves as body waves. ## How shaking is recorded A **seismometer** senses ground movement. A **seismograph** is the sensing-and-recording system; a **seismogram** is its record. A classical instrument uses inertia: the supporting ground moves relative to a suspended mass. Modern electronic instruments record a time series. Sensor, recorder and timing reference are the three basic components. ## Why P–S arrival separation is useful P waves arrive first because they travel faster. The P–S time gap generally increases with source distance. Records from several stations constrain earthquake location. One station alone does not uniquely locate an epicentre; real location calculations use travel-time models. #### Illustrative application · Reading two arrivals A station records a P arrival before an S arrival because P waves travel faster. The growing arrival-time gap with distance can help locate the source using travel-time information. A gap alone, without an appropriate velocity model, is not a universal kilometre conversion. ### Q2(b). Explain five measures for river-flood risk reduction. [10 practice marks] #### Answer Swipe across the diagram to read its labels ↔ ![Four complementary flood-risk measures](https://deep-learning-study-room.vercel.app/dm/fig/flood-measures.8571e23804.svg) Diagram: Four complementary flood-risk measures. Labels: Four complementary flood-risk measures | Four complementary flood-risk measures | 1 · Storage | Wetlands and detention hold water and reduce | a peak. | 2 · Drainage | Maintain flow paths, culverts and outfalls. | 3 · Land-use control | Keep vulnerable development outside mapped | floodways. | 4 · Warning and evacuation | Move people on safe routes while access | remains usable. | floodway | safe site | people | shelter Risk reduction combines storage, protected land use, maintained conveyance and safe evacuation. 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. 5. **Combine protection with warning and preparedness.** Appropriately designed embankments or levees protect selected areas, but can overtop or fail. Maintain them, issue actionable forecasts, mark escape routes and provide safe shelters for the remaining risk. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ### Q3(a). Explain the disaster management cycle with a drought example. [10 practice marks] #### Answer Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle A drought develops slowly, but all stages still apply. 1. **Prevention and mitigation.** Reduce avoidable vulnerability through watershed conservation, suitable cropping, efficient water use and sustainable groundwater management. These do not prevent every rainfall deficit. 2. **Preparedness.** Monitor rainfall, storage and crop stress; plan water priorities, advisories, supply contingencies and livelihood support. 3. **Response.** Provide safe drinking water and urgent livelihood, fodder or health support according to assessed need; manage scarce resources fairly. 4. **Recovery.** Restore productive capacity and livelihoods, repair water systems and improve future planning. Review whether reconstruction and new demand would recreate the same water stress. ## How the cycle connects in one village Before a deficient monsoon, the village improves storage and water-use efficiency: this is mitigation. When monitoring shows a deficit, authorities activate a prepared priority-supply plan: this is preparedness. During severe shortage, safe drinking-water supply and targeted livelihood assistance are response. After conditions improve, repairing sources and restoring livelihoods are recovery. Reviewing which households were excluded should change the next plan. Thus recovery feeds into better mitigation and preparedness rather than simply restoring the earlier vulnerability. In the six-stage lecture diagram, prevention and mitigation are shown separately, and rehabilitation/reconstruction are distinguished within recovery. The stages can overlap; an activity is classified by its purpose, not just its calendar date. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. ### Q3(b). Explain eight ethical principles applicable during response. [10 practice marks] #### Answer Ethics is needed because scarce resources, urgent decisions and disrupted normal safeguards can lead to exclusion, exploitation and unsafe actions. It provides standards for fair prioritisation, accountability, dignity and public trust. 1. **Humanitarian assistance.** Protect life and provide essentials according to need. For example, distribute safe drinking water to communities whose supply has failed. 2. **Information and participation.** Give accurate, accessible updates and involve affected people. Explain shelter locations in local languages and listen to residents about missing people. 3. **Responsible evacuation.** Use safe routes, transport and accessible shelters; explain the danger and preserve dignity. Any compulsory evacuation must follow lawful authority and necessity. 4. **Respect for dignity.** Protect privacy, sanitation and freedom from exploitation. Separate private changing and washing facilities reduce risks in crowded shelters. 5. **Respect for persons.** Treat survivors respectfully and protect their identity, culture and consent where possible. Do not publish identifiable distressing images merely for publicity. 6. **Assistance for those needing additional support.** Arrange assistance for children, older people, pregnant people and persons with disabilities according to actual needs. Do not separate dependants from carers unnecessarily. 7. **Protection of rescue workers.** Provide training, protective equipment, communication, safe deployment and rest. A fatigued, unprotected responder can become another casualty. 8. **Environmental and social restoration.** Control hazardous waste, protect water sources and restore family/community links. Safe debris disposal and family reunification prevent secondary harm. #### Illustrative application · Inclusive assistance at a shelter A shelter team allocates help by need, provides accessible facilities and respects privacy. It does not distribute aid according to social status or publicity value. This turns humanity, impartiality and dignity into observable decisions. ### Q4(a). Explain four landslide causes and four mitigation measures. [10 practice marks] #### Answer Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. Drainage and stabilisation must match the slope and failure mechanism. ## Four causes 1. **Rainfall and saturation.** Water increases pore pressure and reduces effective resistance along a potential slip surface. Prolonged or intense rain can therefore destabilise an already weak slope. 2. **Earthquake shaking.** Shaking adds dynamic forces and can dislodge fractured rock or weaken soil. Unstable slopes may fail during or after a strong earthquake. 3. **Loss of support or vegetation.** River erosion, road cutting and excavation remove support at the toe; loss of roots can reduce shallow soil reinforcement. 4. **Weak or unfavourable geology.** Steep slopes, weathered material and joints or bedding dipping toward the valley can make movement easier. Construction loads may further disturb the balance. ## Four mitigation measures 1. **Control water.** Maintain surface drains and, where designed, subsurface drainage. Diverting water safely reduces saturation; do not discharge it onto another unstable slope. 2. **Stabilise the slope.** Qualified engineers can use retaining structures, anchors, soil nails or regrading after investigation. The design must suit the failure mechanism and include drainage. 3. **Protect cover and regulate land use.** Restore suitable vegetation, limit quarrying and avoid unsafe toe cutting or building on unstable ground. Vegetation helps some shallow failures but cannot stop every deep landslide. 4. **Map, monitor and prepare.** Use susceptibility maps, rainfall observations and movement indicators to prioritise closures and evacuation. Mark safe routes and train residents to report new cracks or tilting structures. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. ### Q4(b). Explain how GIS supports tsunami management in four phases. [10 practice marks] #### Answer For tsunami management, GIS provides a common location-based picture for agencies. Data quality, access, update time and field verification determine its usefulness. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Different layers answer different operational questions. 1. **Mitigation.** Combine coastal elevation, modelled inundation and exposed settlements to guide land use and locate critical facilities outside high-risk areas. 2. **Preparedness.** Map safe high ground, marked routes, travel time, shelters and people needing assistance. Use realistic scenarios in evacuation drills. 3. **Response.** Overlay verified inundation, blocked roads, stranded people and available rescue resources. Use updated information to select safer access and prioritise urgent assistance. 4. **Recovery.** Compare before/after imagery, map damage and service restoration, plan safer reconstruction and monitor whether assistance reaches affected settlements. Remote sensing can update affected-area mapping, but weather, resolution, signal availability and processing time may limit observations. Protect sensitive household and health information when sharing maps. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) ### Q5(a). Develop a ten-point fire-drill planning checklist. [10 practice marks] #### Answer A fire drill is a planned rehearsal of emergency procedures. The checklist should test safe action and reveal practical weaknesses without creating a real hazard. Swipe across the diagram to read its labels ↔ ![A drill tests the full evacuation process](https://deep-learning-study-room.vercel.app/dm/fig/evacuation.06122809c0.svg) Diagram: A drill tests the full evacuation process. Labels: A drill tests the full evacuation process | A drill tests the full evacuation process | Alarm | Recognise the signal | Safe movement | Use the assigned exit | Assembly | Count and report | Review | Correct the gaps | Include visitors and people needing assistance; keep emergency access clear. The sequence is alarm → safe exit → assembly → accountability → review. 1. **Assess the building.** Identify ignition sources, fuel, occupancy and high-risk rooms; choose a realistic scenario. 2. **Set objectives.** Decide whether the drill tests alarm recognition, evacuation, assisted movement or accountability. 3. **Inspect exits.** Check that exit routes are marked, usable and free of obstructions; do not create unsafe bottlenecks. 4. **Choose an assembly point.** Select a safe, accessible place away from smoke, structures and emergency vehicle access. 5. **Test communication.** Check alarms and public-address systems; prepare a backup and an unambiguous signal for a real emergency. 6. **Assign responsibilities.** Name an incident coordinator, floor wardens, first-aid staff and people responsible for counting occupants. 7. **Include everyone.** Plan assistance for persons with disabilities, visitors and others needing support; brief helpers in advance. 8. **Coordinate services.** Inform relevant building managers and emergency services; keep equipment ready for trained users. 9. **Observe and account.** Record movement and delays, conduct a headcount, report missing people and keep participants from re-entering. 10. **Debrief and correct.** Review observations, assign corrective actions, update the plan and repeat the drill after improvements. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. ### Q5(b). Explain METHANE with a complete example incident report. [10 practice marks] #### Answer **Definition.** Structured incident reporting gives responders a common picture of an emergency. METHANE is a widely used multi-agency reporting mnemonic that appears in the supplied archive’s TEE questions. | Letter | Information to report | | --- | --- | | M | Major incident: declared or not; do not invent a declaration. | | E | Exact location: identifiable site and geographic details. | | T | Type of incident. | | H | Hazards present or developing. | | A | Access: safe entry and exit routes, including blockages. | | N | Number and condition of casualties; label estimates and unknowns. | | E | Emergency services present and required. | The acronym is not a chemistry question about methane gas. Send a short verified initial report, distinguish observations from estimates, and update as information changes. Exact procedures follow the relevant response organisation; this mnemonic is included as an archival examination application. ## Example report: hypothetical flood incident Major incident status: awaiting confirmation. Location: east-bank bridge approach, Ward 4. Type: river inundation. Hazards: fast water and damaged power line. Access: west approach closed; north road currently confirmed usable. Casualties: three people reported stranded; injury status unknown. Services: local police on scene; authorised rescue and utility support requested. This is an illustration, not a report of a real event. ## Emergency management expert: role by phase 1. Assess hazards and vulnerability and translate findings into plans. 2. Define responsibilities and coordinate agencies, communities and resources. 3. Train personnel, organise safe drills and improve weak procedures. 4. During response, support verified information, priorities and resource allocation. 5. During recovery, assess needs, restore systems, plan resilient reconstruction and review lessons. ## Worked incident report: illustrative details | Field | Example report | | --- | --- | | M | Major incident declared by the authorised incident commander. | | E | Example: Riverside School, east gate, mapped grid reference shared with control. | | T | Flooding with people stranded. | | H | Fast water, submerged electrical equipment and unstable walls. | | A | Use the northern approach; southern bridge reported closed. Confirm route status. | | N | Twenty people reported stranded; injuries not yet confirmed. | | E | Police and fire teams on scene; request water rescue and medical support. | Update time-stamped information as it is verified. METHANE is an acronym for structured reporting here, not the chemical methane gas. #### Illustrative application · A flood incident report A responder reports the incident location, flood type, live electrical hazards, safe access, approximate casualties and services required. Those facts help the receiving service deploy suitable resources; saying only “there is a flood” does not. ### Q6(a). Explain five measures for reducing cyclone losses in a coastal city. [10 practice marks] #### Answer Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Wind, surge and rain create different protection needs. 1. **Warning and last-mile communication.** Use official forecasts, clear action messages and several communication channels. A forecast must reach fishers, visitors and people without smartphones, with enough time and support to act. 2. **Shelters and evacuation access.** Provide accessible shelters outside surge and flood zones, linked by reliable routes. Practise transport, headcounts and support for people needing assistance so that shelter capacity becomes usable protection. 3. **Resilient buildings and lifelines.** Strengthen roof connections and protect power, water and communication systems to appropriate standards. Hospitals require backup services and protected equipment to keep functioning during response. 4. **Risk-informed coastal land use.** Use surge and flood maps to control exposed development and locate critical infrastructure safely. Protect mangroves and appropriate coastal vegetation as part of a wider protection system, not a guaranteed barrier against every surge. 5. **Drainage and protective works.** Maintain drains and outfalls and use engineered embankments, sea walls or detention where justified by local studies. Consider overtopping, erosion and downstream effects; combine works with warning and evacuation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Q6(b). Describe the Gujarat earthquake and six recovery-linked mitigation measures. [10 practice marks] #### Answer 1. **Event and setting:** On 26 January 2001 a major earthquake struck the Kutch region of Gujarat. 2. **Causes and vulnerability:** Fault rupture caused strong shaking; vulnerable buildings and lifelines amplified losses. 3. **Impacts:** Building collapse, deaths and injuries, disrupted services and large housing and livelihood needs. 4. **Response and recovery:** Search and rescue, medical help and temporary shelter; longer-term reconstruction and institutional strengthening. 5. **Lessons:** Use seismic design and retrofitting, improve construction quality, protect lifelines, train communities, support owner/community participation and rebuild with risk reduction. #### Real programme · Gujarat earthquake recovery GSDMA’s reconstruction and mason-training programmes connect recovery with safer rebuilding. The principle is to improve construction capacity and resilience while restoring what was damaged, rather than simply reproduce the previous vulnerability. [Case reference ↗](https://www.gsdma.org/Content/masons-training-certification-programme-4223) Following the 26 January 2001 earthquake, Gujarat’s recovery programme linked reconstruction with longer-term risk reduction. Six relevant measures are: 1. **Institutional strengthening.** GSDMA was established in February 2001 to coordinate reconstruction and develop preparedness and mitigation capacity. 2. **Safer housing repair and reconstruction.** The programme repaired and rebuilt damaged homes; risk reduction requires appropriate earthquake-resistant design and construction quality rather than simple replacement. 3. **Restoration of critical public facilities.** Schools, hospitals, water systems and other public assets were repaired or reconstructed to restore essential functions and improve safety. 4. **Town planning and access.** Reconstruction in affected towns included improved roads, planned open spaces and services, supporting evacuation and future emergency access. 5. **Training construction workers.** Training and certification of masons and capacity building for engineers promoted earthquake-resistant construction practices. 6. **Community preparedness and long-term systems.** Multi-hazard preparedness, community participation and strengthened emergency-management institutions connected recovery to future resilience. ### Q7(a). Recommend six preparedness measures for an industrial gas leak. [10 practice marks] #### Answer 1. **Detect and identify hazards.** Inventory chemicals, assess credible leak scenarios and install suitable detectors and alarms. Knowing what can leak determines the required warning and response. 2. **Maintain and audit equipment.** Inspect pipelines, valves, vessels and interlocks; investigate defects and follow safe operating procedures. Prevention reduces the chance of a leak rather than only treating its consequences. 3. **Prepare on-site and off-site plans.** Map potential affected areas and coordinate with authorities, hospitals and neighbouring communities. Specify incident command, isolation procedures, communication and resource requests. 4. **Plan protective action.** Pre-identify safe assembly locations, alternate routes and shelter arrangements based on the chemical and official advice. A gas release may require evacuation or shelter-in-place; one direction or action is not safe for every chemical. 5. **Train and rehearse.** Teach workers to recognise alarms, report incidents and follow their assigned roles. Practise communication, accountability and coordination without releasing hazardous material. 6. **Equip and communicate.** Provide suitable PPE and specialised response resources for trained teams; maintain backup communication. Inform communities clearly and arrange medical support while preventing untrained rescue entry. #### Real case and learning connection · Bhopal, 1984 The Bhopal gas tragedy illustrates why hazardous industrial operations require safe systems and planning for nearby communities. The teaching connection is prevention plus warning, specialist response and long-term support; an emergency message cannot replace safe operation. ### Q7(b). Explain heat-wave and cold-wave precautions. [10 practice marks] #### Answer | Aspect | Heat-wave response | Cold-wave response | | --- | --- | --- | | Exposure | Use shade/cooling and reduce strenuous activity during extreme heat; do not remain in a hot parked vehicle. | Move to a warm, dry shelter; do not remain in wet clothes. | | Clothing | Wear suitable lightweight clothing and sun protection. | Use dry layers and protect the head, hands and feet. | | Hydration and food | Drink safe fluids and follow relevant medical advice; do not rely on alcohol. | Maintain food and fluids; do not assume alcohol safely warms the body. | | Protect others | Check on vulnerable people and never leave a child in a closed hot vehicle. | Check on isolated people and arrange blankets and night shelter. | | Warning signs and safe care | Serious confusion, collapse or severe heat illness needs urgent medical help. | Marked confusion, drowsiness or suspected hypothermia needs urgent medical help; avoid unsafe direct intense heating. | | Indoor equipment | Use cooling safely and plan for power loss. | Use safe ventilated heating; never use charcoal or a generator inside an enclosed room. | #### Illustrative application · A city during a heat wave Outdoor workers, older adults and poorly ventilated homes may face different levels of risk during the same hot period. Heat warnings, access to cooling and adjusted work arrangements address vulnerability and exposure; they do not change the weather event itself. --- ## TEE · TEE mock B Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/mocks/tee-mocks--paper-b/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/mocks/tee-mocks/paper-b New 100-mark practice papers using the observed recent choice pattern **100 marks · 3 hours.** Q1(a–d) compulsory; attempt any four complete questions from Q2–Q7. These are authored practice questions using the observed choice structure. Practice marks are writing targets, not an official marking scheme or a forecast. The media and risk-mapping question families occur in 15 May 2026 Q6B and Q3B respectively. All syllabus hazards remain in the main lessons even when not selected for this mock. ### Q1(a). Distinguish earthquake magnitude from intensity. [5 practice marks] #### Answer **Definition.** Magnitude describes earthquake size using instrument-based scales. Intensity describes the shaking and effects at a particular location. | Basis | Magnitude | Intensity | | --- | --- | --- | | Refers to | Size of the source event. | Effects at a site. | | Values | An event has an estimated magnitude for a specified scale; estimates can be revised. | One event has many site intensities. | | Scale example | Local magnitude Mₗ / moment magnitude M𝑤. | Modified Mercalli intensity I–XII. | | Evidence | Seismic recordings or seismic moment. | Felt reports, movement and damage observations. | | Depends on site? | Not a separate magnitude for each town. | Changes with distance, local soil and built environment. | Example: a magnitude 6 earthquake may be strongly felt near the source and weakly felt far away. The magnitude has not “become 3” in the distant town; local shaking intensity is lower. Magnitude does not directly tell you a death toll. ## Reading the Modified Mercalli scale I means not felt except under special circumstances; II–III are weakly felt; IV–V become widely noticeable; VI–VII can involve damage, especially to vulnerable construction; VIII–IX indicate severe damage; X–XII represent very severe to extreme effects. These are descriptive intensity levels, not energy multiplication factors. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Q1(b). Explain disaster classification using the Indian Ocean tsunami. [5 practice marks] #### Answer **Chain:** natural geophysical trigger (undersea earthquake) → physical ocean-wave/inundation hazard → water, land, settlements and livelihoods affected → international/transboundary disaster for the Indian Ocean event of 26 December 2004. **Definition.** Classification groups disasters by a stated property. The same event can have different labels under different bases; those labels are not competing answers. | Basis used in the lecture | Categories | Example: Bhopal gas tragedy | | --- | --- | --- | | Origin / occurrence | Natural; human-induced; biological events considered separately where appropriate | Human-induced industrial event | | Hazardous characteristic | Chemical, biological, radiological or physical | Chemical: toxic methyl isocyanate release | | Affected environmental / social component | Air, water, soil and society; more than one may be affected | Primarily toxic air exposure with serious social and health consequences | | Geographic / administrative reach | Local, state/regional (“domicile” in the lecture), national, international/global | The release was local to Bhopal; response and consequences involved wider levels. | ## Legal / administrative boundaries: each course category with an example | Category in the lecture | Meaning | Example and why it fits | | --- | --- | --- | | Local | The affected area is within a locality or community. | Illustrative example: a serious factory fire disrupts one industrial neighbourhood. Its immediate geographic impact is local, even if outside firefighters assist. | | Domicile / regional | The affected area extends across a region or state. | The 2018 Kerala floods illustrate a disaster affecting many districts within a state. National assistance does not change the location of the main affected area. | | National | Effects and coordinated action extend across a country. | COVID-19 can be studied at the national scale through its effects across India and the countrywide response. | | Global / international | Effects extend across national borders. | The COVID-19 pandemic affected countries worldwide, so it also illustrates the global scale. The same event can be discussed at more than one geographic scale. | These labels describe the geographic reach used in the faculty classification. They do not establish that a government formally declared an event a “national disaster”. State the affected area and explain the chosen label; keep the level of assistance separate. ## Five hazard groups | Hazard group | Example | Possible disaster | | --- | --- | --- | | Geological / geophysical | Fault rupture | Damaging earthquake | | Hydrometeorological | Extreme rainfall / cyclone | Flood or coastal storm disaster | | Biological | Pathogen transmission | Epidemic or pandemic | | Technological | Hazardous industrial release | Chemical gas disaster | | Environmental | Degraded ecosystems or severe pollution | Loss of ecosystem services and increased disaster vulnerability | A natural trigger does not mean all losses are unavoidable. Poor siting or construction can intensify losses. Forest fires may start from lightning or from human actions, so classify their origin according to the known ignition cause. “Domicile” here is course terminology for a regional/state reach, not a standard scientific measure of severity. #### Real case and learning connection · Indian Ocean tsunami, 2004 The 2004 Indian Ocean tsunami shows how a large undersea disturbance can create destructive coastal waves. It also illustrates why coastal risk knowledge, detection, clear warnings and evacuation capability must work together; a monitoring instrument alone cannot move people to safety. ### Q1(c). Explain the role of NGOs with four examples. [5 practice marks] #### Answer NGOs can complement public authorities through local knowledge, relief, inclusion, training and recovery. They should coordinate needs assessment, avoid duplication and remain accountable to affected people. 1. **SEEDS.** Works on disaster response, resilience, community skills and safer built environments. 2. **Goonj.** Connects material relief and community-led work with dignity and recovery needs. 3. **ActionAid Association.** Supports inclusive emergency preparedness, response and recovery, with attention to marginalised communities. 4. **CARE.** Provides humanitarian support across emergencies, including essential needs and recovery activities through its programmes and partners. An NGO is not the incident-command authority merely because it provides relief. Clear roles and coordination with designated authorities are necessary. #### Illustrative application · Local knowledge in a response plan Residents can identify an elderly neighbour needing assistance and a lane that becomes inaccessible in rain. Authorities and trained volunteers can incorporate that knowledge into routes and assistance plans. Participation contributes practical information; it does not replace professional hazard assessment. ### Q1(d). Explain the need for awareness generation. [5 practice marks] #### Answer Awareness generation helps people recognise their local hazards, understand warnings and know how to obtain assistance. It is needed because unfamiliar terms, rumours and inaccessible messages can prevent action even when a technically accurate forecast exists. 1. **Explain local risk.** Use familiar places and examples so residents understand who may be affected and why. 2. **Teach protective action.** Show the warning signal, safe route, assembly point and essential preparations rather than giving only slogans. 3. **Include different audiences.** Use local languages, accessible formats and suitable times for children, workers, older people and visitors. 4. **Build trust and coordination.** Identify official information sources and encourage community participation, reporting and mutual support. 5. **Link awareness to practice.** Follow explanation with training and drills, collect feedback and correct gaps. Knowing a message is different from being able to act on it. #### Illustrative application · A school evacuation drill A planned drill tests whether alarms are understood, routes are usable, people needing assistance receive it and everyone reaches the assembly point. The debrief identifies bottlenecks and changes the plan. Merely walking outside without review is an incomplete exercise. ### Q2(a). Explain disaster scale with a cyclone example and sketch. [10 practice marks] #### Answer **Definition.** A response level indicates the capacity needed to manage an event. It is different from a physical magnitude or intensity scale. Swipe across the diagram to read its labels ↔ ![Disaster scale: the faculty lecture framework](https://deep-learning-study-room.vercel.app/dm/fig/course-levels.26aad2f326.svg) Diagram: Disaster scale: the faculty lecture framework. Labels: Disaster scale: the faculty lecture framework | Disaster scale: the faculty lecture framework | Level 01 | Own organisation or | community resources contain | the incident. | Level 02 | External help from nearby | authorities is required. | Level 03 | Community or regional | capacity is exceeded; wider | help is needed. | Escalate when needs exceed available capacity. | Separate geographic scale: | Local → district → state → national → international / global | A hypothetical cyclone can affect one community or a much wider area. | These lecture Levels 01–03 are not the official L0–L3 numbering scheme. | Neither scale is a cyclone wind-speed category. The three capacity levels used in the M1 lecture. The separate geographic scale is shown below. ## 1. Three levels used in the faculty lecture | Lecture level | Meaning | Cyclone illustration — a hypothetical escalation | | --- | --- | --- | | Level 01 | An organisation, institution or community contains the incident using its own resources. | A community shelter deals with limited roof damage and assists its occupants using its trained team and stored supplies. | | Level 02 | The affected organisation or community needs external help from nearby authorities. | Damage exceeds that team’s resources, so nearby fire, medical and local-authority services provide additional help. | | Level 03 | The event exceeds the community or regional capacity and requires district / provincial or wider assistance. | Several affected communities need coordinated district/state evacuation, shelter, transport and specialist support. | ## 2. Geographic / administrative scale **Local → district → state → national → international / global.** These describe how widely an event affects people and which territorial levels become involved. For a cyclone, one settlement may be affected locally, several settlements across a district may require district coordination, and several districts or states may require wider support. International assistance is an additional possibility when requested and needed, not an automatic final stage of every disaster. ## 3. Why numbering conventions must not be mixed Indian disaster plans also use an **L0–L3 planning convention**: L0 is normal preparedness; L1 can be handled at district level; L2 requires state assistance; L3 requires national assistance when state and district capacity is exceeded. This is a different definition of the numbers from the lecture’s organisation/community-based Levels 01–03 above. For this course’s “disaster scale” answer, explain the lecture framework first. If a question explicitly gives the official planning convention, use that convention throughout. ## 4. Significance of the scale 1. **Recognise unmet needs:** compare actual damage and urgent requirements with available people, equipment and supplies. 2. **Escalate early:** request outside help before local services are overwhelmed. 3. **Assign coordination:** identify which agencies must cooperate and who will communicate decisions. 4. **Allocate resources:** send rescue teams, transport, shelters and medical support where the gap is greatest. 5. **Review as conditions change:** a cyclone’s scale can grow or reduce as impacts and capacity change. Wind speed alone does not determine the response level. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Q2(b). Explain GIS-based drought mapping. [10 practice marks] #### Answer GIS links information to location, allowing drought indicators and affected people to be analysed together. Remote sensing supplies repeated observations; field verification is still needed. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Combine hazard indicators, exposure and resources to support decisions. 1. **Map rainfall deficits.** Compare rainfall with the local long-term pattern and map persistent deficits. For example, identify districts with deficient seasonal rainfall rather than applying one national rainfall threshold. 2. **Observe soil and vegetation.** Use soil-moisture information and vegetation indicators to locate crop stress. Ground observations help separate drought stress from disease, land-use change or poor data. 3. **Map available water.** Locate reservoirs, wells, streams and supply systems and track their condition. Overlay settlements to identify people far from reliable drinking-water sources. 4. **Assess vulnerability.** Combine rain-fed cultivation, livestock, poverty and access data with hazard indicators. Two equally dry areas can need different support because livelihood and service conditions differ. 5. **Prioritise and monitor action.** Select recharge, supply and livelihood interventions and map their progress. For example, direct emergency water to poorly served settlements while planning long-term watershed work. 6. **Communicate limitations.** Show data dates, uncertainty and update schedules. A map supports judgement; it does not automatically prove a village has water or that an individual household received relief. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) ### Q3(a). Explain the hierarchy of disaster management in India. [10 practice marks] #### Answer **Definition.** India’s disaster management framework distributes policy, planning and response responsibilities across national, state, district and local levels. Swipe across the diagram to read its labels ↔ ![From national policy to local action](https://deep-learning-study-room.vercel.app/dm/fig/institutions.e7262187f0.svg) Diagram: From national policy to local action. Labels: From national policy to local action | From national policy to local action | National: NDMA and Union government | Policy, planning framework, guidance and national support | State: SDMA and state departments | State plans, coordination, sector responsibilities and resources | District: DDMA and district administration | Local risk assessment, planning, coordination and implementation | Local authorities and communities | Warnings, preparedness, service delivery and assisted evacuation | Technical support | IMD: weather CWC: | floods INCOIS: tsunami | Other key roles | NDRF: specialist | response NIDM: training | and capacity Authorities plan and coordinate; technical agencies provide specialist information; response forces conduct specialised operations. | Body | Full name / leadership | Main role | | --- | --- | --- | | NDMA | National Disaster Management Authority; chaired by the Prime Minister | National policy, plans, guidelines and coordination for risk reduction and effective response. | | SDMA | State Disaster Management Authority; chaired by the Chief Minister | State policy, plans and coordination adapted to the state’s risks. | | DDMA | District Disaster Management Authority; headed by the District Magistrate / Collector / Deputy Commissioner | District planning, coordination, preparedness and local implementation; elected local representative has a co-chairing role under the Act. | | NDRF | National Disaster Response Force | Specialist response including search, rescue and disaster operations. | | NIDM | National Institute of Disaster Management | Training, capacity building, research and documentation. | | Local authorities | Municipalities, panchayats and local services | Maintain local services, implement safety measures and assist warnings, evacuation and relief. | An **authority** frames policy and coordinates. A **force** provides operational response. An **institute** develops skills and knowledge. They are not interchangeable. State and local services also respond; it is incorrect to suggest that only NDRF does rescue. #### Illustrative application · Authority, force and institute In a hypothetical district emergency, the district administration coordinates local action, specialised response teams support rescue when deployed, and technical agencies supply hazard information. Policy authorities and training institutions have different roles; they are not interchangeable rescue teams. ### Q3(b). Explain cyclone formation, structure and hazards with a sketch. [10 practice marks] #### Answer **Definition.** A cyclone is an atmospheric circulation around a low-pressure centre. A tropical cyclone is an organised rotating storm over warm tropical or subtropical waters, with strong winds, rain and potentially storm surge. Swipe across the diagram to read its labels ↔ ![Tropical cyclone: structure and hazards](https://deep-learning-study-room.vercel.app/dm/fig/cyclone.035d3a6b0d.svg) Diagram: Tropical cyclone: structure and hazards. Labels: Tropical cyclone: structure and hazards | Tropical cyclone: structure and hazards | Eye: relatively calm centre | Eyewall: strongest winds | Rainbands: heavy showers | Main hazards | Strong wind + storm surge + rainfall flooding | Schematic plan view; not a map or a forecast. Warm moist air feeds the storm. The eyewall surrounds the relatively calm eye in a mature intense tropical cyclone. 1. Warm ocean water supplies moisture and energy by evaporation. Typical favourable sea-surface temperatures are around 26–27°C or higher over adequate depth. 2. Warm moist air rises; condensation releases latent heat, supporting further rising motion. 3. Air flows towards the low-pressure centre. Earth’s rotation helps organise the circulation; systems do not usually form right at the equator. 4. With favourable conditions such as sufficient moisture and limited disruptive vertical wind shear, the system organises and intensifies. 5. A mature system may develop an eye surrounded by an eyewall. It weakens when it loses favourable ocean energy or encounters hostile atmospheric conditions. | Part | Meaning | | --- | --- | | Eye | Relatively calm central region with descending air in a well-developed cyclone. | | Eyewall | Ring of intense convection; strongest winds and heavy rainfall are commonly found here. | | Rainbands | Spiral bands of clouds and rain around the centre. | | Track | The path followed by the storm; forecasts have uncertainty. | **Definition.** The principal tropical-cyclone hazards are strong winds, heavy rainfall and storm surge. Their combined effects can create cascading damage. | Hazard | Mechanism | Damage | | --- | --- | --- | | Wind | Strong pressure gradients drive fast winds. | Roof damage, flying debris, fallen trees and power lines. | | Rain | Intense rainfall produces runoff. | River/urban flooding and landslides. | | Storm surge | Wind pushes sea water towards shore; low pressure adds a smaller contribution. | Coastal inundation, saltwater intrusion and erosion. | **Storm tide** combines astronomical tide and storm surge; waves and river flooding can compound impacts further. A tsunami is a different process, usually generated by sudden displacement of the water column. ## Names and classifications without mixing systems Hurricane is the regional name used in the Atlantic and northeast Pacific; typhoon in the northwest Pacific; tropical cyclone or cyclonic storm is used in the Indian Ocean context. A tornado is a small-scale rotating column connected to a thunderstorm and is **not** a South American synonym for tropical cyclone. A mesocyclone is a rotating thunderstorm updraft. Polar and extratropical cyclones occur in different environments and should not be described as identical warm-ocean systems. In the Northern Hemisphere, cyclonic circulation is anticlockwise; in the Southern Hemisphere, clockwise. India’s Bay of Bengal and Arabian Sea coasts both face serious cyclone risk. Not every Indian cyclone is moderate. ## Wind categories need their own units and definitions The PPT shows both a Saffir–Simpson hurricane image and a gust-based five-category table. They are not interchangeable with IMD’s North Indian Ocean classification. Use the named system supplied in a question; do not mix gust speed with sustained wind speed. The key M2 concepts are formation, hazards, warnings and mitigation. #### Real case · Phailin, 2013 India reported pre-emptive evacuation of more than one million people before Cyclone Phailin. This is a real example of warning linked to action. For a formation question, keep the physical process separate; for management, explain how evacuation reduces exposed people’s immediate risk. [Case reference ↗](https://www.pib.gov.in/newsite/erelcontent.aspx?lang=2®=48&relid=105888) ### Q4(a). Explain causes, impacts and mitigation of drought. [10 practice marks] #### Answer **Definition.** Drought is an abnormal period of water deficiency relative to a region’s needs and usual conditions. It develops through rainfall, soil moisture, water storage and demand—not simply one hot day. | Type | Meaning | Example | | --- | --- | --- | | Meteorological | Precipitation is substantially below the normal pattern over a relevant period. | A poor monsoon. | | Agricultural | Soil moisture is insufficient for crop requirements at a growth stage. | A long dry spell during crop flowering. | | Hydrological | Reduced streamflow, reservoir storage or groundwater. | Low reservoir levels after successive deficient seasons. | | Socio-economic | Water shortage disrupts supply of goods or services relative to demand. | Insufficient water for drinking, irrigation and industry. | ## Why impacts vary Rainfall deficit is a trigger; high evaporation, water-intensive demand, depleted aquifers and poor storage can intensify shortages. Rain-fed farmers, livestock-dependent households and people with limited savings may be especially vulnerable. Agricultural drought can develop before large reservoirs become depleted; hydrological impacts can persist after rainfall improves. 1. **Conserve rainfall and restore watersheds.** Use suitable rainwater harvesting, contour measures and recharge work. Site-specific geology and maintenance determine whether water can be stored or recharge groundwater effectively. 2. **Use water efficiently.** Repair leaks, use appropriate irrigation scheduling and adopt efficient systems where suitable. Saving water at one point should be reflected in an overall water budget rather than expansion that cancels the saving. 3. **Plan crops and livelihoods.** Choose crops and sowing decisions suited to local water availability; diversify income where feasible. This reduces dependence on a single water-intensive crop or season. 4. **Monitor shortages and manage demand.** Track rainfall deficits, soil moisture, reservoir levels and groundwater. Prioritise drinking water, protect essential services and agree fair allocation before supplies become critical. 5. **Prepare community support.** Communicate advisories, arrange safe emergency drinking-water supply and fodder, and support vulnerable livelihoods. Emergency relief addresses immediate suffering while long-term measures reduce the next drought’s impacts. #### Illustrative application · A rain-fed farming district A season of deficient rainfall can first create meteorological drought, then crop-water stress, and later reduced streamflow or storage. Preparedness combines water information, demand management and livelihood support. The sequence is an illustration, not a claim that every district follows the same timing. ### Q4(b). Explain two landslide types with sketches and suitable measures. [10 practice marks] #### Answer **Definition.** A landslide is downward movement of rock, debris or earth under gravity. Its movement may be falling, toppling, sliding, spreading or flowing. | Type | Movement | Illustration | | --- | --- | --- | | Fall | Material detaches and falls through air. | Rockfall from a steep cliff. | | Topple | A block rotates forward around a pivot or base. | Jointed rock columns lean and overturn. | | Slide | Material moves along a recognisable slip surface. | Rotational slide on a curved surface or translational slide on a plane. | | Flow | Material deforms and moves like a flowing mass. | Water-saturated debris flow. | | Spread | Extension and lateral movement, sometimes over a weak layer. | Ground spreading associated with liquefaction. | ## Why a slope becomes unstable 1. Rain infiltration raises pore-water pressure and can reduce effective resistance. 2. River erosion or road cutting removes support at the slope toe. 3. Earthquake shaking adds destabilising forces. 4. Weak or weathered rock and unfavourably oriented joints create possible failure surfaces. 5. Deforestation, added loads, excavation and poor drainage can increase susceptibility. Cracks, tilting trees or poles, new seepage and small falls can indicate instability, but no single sign reliably predicts every landslide. Report suspected movement and follow local evacuation advice; do not enter an active slide to investigate. ## Mitigation matched to mechanism **Rotational slide:** investigate the curved slip surface, reduce infiltration, manage loading and toe support and restrict unsafe development. **Topple:** investigate fractured blocks, control water and use suitable specialist anchoring/support or exclusion and catch measures. The same retaining wall is not a universal solution for both. Swipe across the diagram to read its labels ↔ ![Landslide mechanisms require different solutions](https://deep-learning-study-room.vercel.app/dm/fig/slope.38d4f3b001.svg) Diagram: Landslide mechanisms require different solutions. Labels: Landslide mechanisms require different solutions | Landslide mechanisms require different solutions | Rotational slide | Topple | Curved slip surface | Drainage / stabilisation / safer siting | Block rotates forward | Assess joints, toe support and water | Measures must follow site investigation; vegetation alone does not stop every failure. A curved slip surface indicates rotation; forward block rotation indicates toppling. #### Illustrative application · A road cut after prolonged rain Removing support at the base of a slope and allowing water to enter can reduce stability. An appropriate response investigates ground conditions, improves drainage and uses engineered support or safer siting. The correct design is site-specific, not a universal wall for every slope. ### Q5(a). Explain four modes of media used in disaster management with examples and justification. [10 practice marks] #### Answer For disaster information across preparedness, response and recovery, communication must connect the warning to a protective action. Use several channels, accessible languages and backup power, and assign responsibility for updates. 1. **Official mobile alerts.** Send location-specific SMS/cell-broadcast or official app alerts with the hazard, time, expected impact and action. They are fast and can be updated, but cannot be the only method because phones, power or networks can fail. 2. **Broadcast media.** Use radio and television to explain the warning in local languages, repeat protective instructions and correct rumours. Battery radio provides a backup when electricity or mobile data is unavailable. 3. **Local public-address and community networks.** Use sirens with a taught meaning, announcements, police, local volunteers and door-to-door assistance where safe. These methods reach people who cannot read a text alert or need physical evacuation support. 4. **Operational radio and verified digital updates.** Use two-way radio for field teams and control rooms, with official web/social updates for public information. Team reports help correct road closures and resource needs; verify updates before forwarding them. **Message structure:** authority and issue time → affected place → hazard and expected impact → protective action and safe destination → next update/contact. Confirm that high-risk groups received and understood the message; broadcasting alone does not prove successful evacuation. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Q5(b). Explain how risk mapping identifies flood-prone areas and describe its four steps. [10 practice marks] #### Answer **Definition.** Risk assessment identifies hazards and evaluates exposure, vulnerability and capacity to understand possible losses and priorities. Risk mapping represents that information geographically. Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Hazard information combined with exposed assets and vulnerability supports risk-based decisions. 1. **Identify risk:** determine what can happen, where and to whom. For a flood, gather past inundation, low ground, river and settlement data. 2. **Assess risk:** examine likelihood, depth/velocity, people and assets, construction and coping capacity. Rank areas by potential harm. 3. **Communicate risk:** provide understandable maps, warnings and explanations to planners, responders and residents. Include uncertainty and local accessibility needs. 4. **Mitigate risk:** apply zoning, drainage improvements, shelters, evacuation and training; update the assessment after changes. ## Analysis and assessment | Disaster analysis | Damage / needs assessment | | --- | --- | | Explains why and how an event produced losses. | Estimates what has been damaged and what assistance is needed. | | Investigates mechanisms, vulnerabilities and failures. | Measures affected people, services, losses and recovery requirements. | | Uses event data, models and causal investigation. | Uses surveys, inspections, inventories and field reports. | | Supports long-term prevention and improved planning. | Supports relief allocation and recovery priorities. | This comparison concerns **post-disaster damage/needs assessment**. Assessment is not restricted to after a disaster: pre-event risk assessments are essential too. Neither word guarantees greater accuracy by itself. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) ### Q6(a). Explain GIS applications in recovery. [10 practice marks] #### Answer Swipe across the diagram to read its labels ↔ ![GIS combines location-based layers for decisions](https://deep-learning-study-room.vercel.app/dm/fig/gis.9072f68acf.svg) Diagram: GIS combines location-based layers for decisions. Labels: GIS combines location-based layers for decisions | GIS combines location-based layers for decisions | Hazard layer | Flood extent / slope / drought | Exposure layer | People, homes, roads, hospitals | Resources layer | Shelters, teams, water supply | Decision supported | Which places face danger? Who needs | assistance? Which route is usable? Where | should resources go? | Check data dates, accuracy and field reports; a map is decision support. Recovery decisions combine observed damage, services, population and rebuilding constraints. 1. **Assess spatial damage.** Compare pre-event records with imagery and field surveys to map damaged buildings, roads, crops and utilities. 2. **Prioritise restoration.** Locate hospitals, drinking-water systems and isolated settlements so critical services and access are restored in a reasoned sequence. 3. **Match needs and resources.** Map shelter, livelihoods and assistance coverage to reveal underserved areas; verify needs with affected communities. 4. **Plan safer reconstruction.** Overlay hazard and land-use constraints to avoid rebuilding critical assets in the same high-risk locations. 5. **Monitor progress.** Update repair status, housing completion and access to services. A shared map reduces duplication and supports transparent review. 6. **Review and protect data.** Document uncertainty and survey dates, correct discrepancies and limit access to sensitive personal information. #### Real programme and application · Satellite flood mapping NRSC’s disaster-management support uses space-based information to assist decisions. A flood map can be combined with settlement and road layers to identify affected access routes. The imagery shows conditions at a particular observation time; responders must check its age and ground accuracy. [Case reference ↗](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) ### Q6(b). Explain disaster roles of four engineering specialisations. [10 practice marks] #### Answer Engineers reduce risk through safe design, reliable infrastructure, technical assessment and coordinated restoration. They work within their competence and alongside emergency authorities. | Specialisation | Before | Response and recovery example | | --- | --- | --- | | Civil/structural | Assess sites, use seismic/flood-resistant design and inspect structures. | Assess damaged bridges/buildings and guide safe repair or reconstruction. | | Mechanical | Maintain pumps, machinery, pressure systems and safety interlocks. | Restore pumping and essential plant safely; investigate failures. | | Electrical | Protect supply systems and provide appropriate redundancy and backup. | Isolate dangerous systems through trained staff and restore essential power. | | Computer/IT/communication | Protect data and communication, maintain backups and mapping systems. | Restore networks, support verified incident information and protect sensitive records. | For example, after a flood, civil engineers assess road access, electrical teams make damaged installations safe, mechanical teams restore pumps and IT teams support reliable information sharing. Coordination avoids restoring one system in a way that endangers another. #### Illustrative application · Engineering choices reduce risk A civil engineer checks structural safety, an electrical engineer protects power systems, and a communications engineer designs warning redundancy. Their work supports the same community plan through different technical responsibilities. ### Q7(a). Explain five forest-fire causes and five immediate response measures. [10 practice marks] #### Answer ## Five causes 1. **Lightning.** A strike can ignite sufficiently dry vegetation, especially when little rain reaches the ground. 2. **Unattended flames.** Careless campfires, discarded smoking materials or other open flames can ignite litter. 3. **Escaped burning.** Agricultural or debris burning can spread into nearby forest when control fails. 4. **Deliberate ignition.** Arson can start a fire; motives and responsibility require investigation rather than assumption. 5. **Equipment or electrical faults.** Sparks and damaged power infrastructure can ignite dry fuel. Heat, drought and wind make fuels drier and spread faster; they are not always the ignition source themselves. ## Five immediate response measures 1. **Detect, report and assess.** Report the location, fire direction, weather, access and people at risk. Authorities assess fuel, terrain and expected spread. 2. **Warn and evacuate.** Issue clear route and shelter instructions, assist vulnerable residents and close unsafe roads. Avoid sending people into smoke or the expected fire path. 3. **Establish safe command and access.** Coordinate fire and forest services, protect responders and maintain communication, escape routes and safety zones. 4. **Contain and suppress professionally.** Trained crews use tactics and equipment suitable for the fire, such as controlled suppression and prepared containment lines. Prescribed burning or back-burning is specialist work, never an instruction for the public. 5. **Prevent re-ignition and meet urgent needs.** Maintain professional patrols for hotspots and re-ignition, keep unsafe areas closed, and arrange urgent medical care, safe water and temporary shelter for affected people. Long-term forest restoration belongs to recovery rather than this immediate-response list. #### Illustrative application · From urgent help to recovery A displaced household may first need safe shelter and essential supplies, then restoration of services and livelihood support. Rebuilding safer addresses longer-term risk; providing immediate relief alone does not complete recovery. ### Q7(b). Explain the Mumbai flood case and four risk-reduction measures. [10 practice marks] #### Answer 1. **Event and setting:** Extreme rainfall on 26 July 2005 caused severe flooding in Mumbai and surrounding areas. 2. **Causes and vulnerability:** Intense rainfall interacted with inadequate or obstructed drainage, loss of natural storage, low-lying development and tide-related drainage constraints. 3. **Impacts:** Transport paralysis, deaths and injuries, housing damage, disrupted livelihoods and public-health risks. 4. **Response and recovery:** Rescue and shelter, restoration of services and attention to drainage, warning and urban-planning weaknesses. 5. **Lessons:** Maintain drains; protect wetlands and natural flow paths; plan outfalls and detention; issue local warnings; regulate exposed development. #### Real case and learning connection · Mumbai floods, 2005 The Mumbai flood case links intense rainfall with urban drainage and development conditions. For an answer on mitigation, explain how maintaining drainage and protecting water-storage spaces address specific pathways of flooding; do not claim that any single measure prevents every extreme event. [Case reference ↗](https://nidm.gov.in/PDF/Newsletter/6_nov_2005.pdf) ## Three interacting causes 1. **Exceptional rainfall.** A very large rainfall input rapidly produced runoff. 2. **Restricted conveyance.** Blocked or inadequate drainage and constrained river/outfall flow limited removal of water. 3. **Exposed urban development.** Impervious surfaces, loss of storage and low-lying development increased runoff and the people and assets affected. ## Four mitigation measures 1. **Maintain the catchment and natural storage.** Protect wetlands and floodplains and restore suitable vegetation. These measures slow runoff and store part of the floodwater, although they cannot eliminate extreme floods. 2. **Manage channels and drainage.** Remove blockages and maintain bridges, culverts and drains. Engineering surveys should guide selective desilting; indiscriminate excavation can damage banks and ecosystems. 3. **Use storage and coordinated reservoir operation.** Detention basins and reservoirs can hold water and release it more slowly. Forecasts, operating rules and downstream warnings are essential because storage and outlet capacity are finite. 4. **Apply floodplain zoning and resilient construction.** Keep new critical facilities outside high-risk zones. Where occupation is permitted, use suitable raised floors, protected utilities and evacuation access to reduce losses. --- ## TEE · Units 1–2: concepts and hazards Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/revision/revision-tee--units12/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/revision/revision-tee/units12 All five units: a compact final pass | Term | Meaning | Example | | --- | --- | --- | | Risk | Potential loss arising from hazardous events interacting with exposed and vulnerable people/assets. | Possible damage to homes in a floodplain. | | Vulnerability | Conditions that make people or assets susceptible to harm. | Weak housing or lack of accessible evacuation transport. | | Hazard | A process or event with the potential to cause harm. | A cyclone or toxic gas release. | | Preparedness | Knowledge, plans and resources enabling effective action. | A rehearsed evacuation plan and ready shelters. | | Mitigation | Measures that lessen likely harm. | Retrofitting a vulnerable building. | | Hazard | Cause → impact → measure | | --- | --- | | Earthquake | Fault rupture → shaking/collapse → safe design, retrofitting and protective action. | | Flood | Excess flow/runoff → inundation → basin/drainage management, zoning and warnings. | | Drought | Water deficit interacting with demand → livelihood/water stress → conservation, allocation and support. | | Landslide / subsidence | Slope failure / ground sinking → structural/access loss → investigation, drainage, stabilisation and safer siting. | | Tsunami | Large water displacement → coastal inundation → monitoring and evacuation to safe ground. | | Cyclone | Organised tropical storm → wind/surge/rain → warnings, shelters and resilient construction. | | Volcano / avalanche | Magma processes / rapid snow movement → distinct flow/ash/snow hazards → monitoring, exclusion and preparedness. | | Industrial hazards | Hazardous systems/releases → exposure/contamination → safe design, maintenance and coordinated specialist response. | --- ## TEE · Units 3–4: management and applications Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/revision/revision-tee--units34/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/revision/revision-tee/units34 All five units: a compact final pass **Definition.** Disaster management is the organised process of preventing or reducing risk, preparing for emergencies, responding to impacts and supporting recovery. Swipe across the diagram to read its labels ↔ ![The management cycle continues after recovery](https://deep-learning-study-room.vercel.app/dm/fig/cycle.4dd3905659.svg) Diagram: The management cycle continues after recovery. Labels: The management cycle continues after recovery | The management cycle continues after recovery | Risk reduction | Prevention and mitigation: avoid risk or | reduce losses. | Preparedness | Plans, warnings, training and resources to | act. | Response | Urgent protection, rescue and essential | assistance. | Recovery | Restore services and livelihoods; rebuild | safer. | Lessons improve the next cycle The cycle repeats: lessons from recovery must improve prevention and preparedness. | Stage | Meaning | One clear example | | --- | --- | --- | | Prevention | Avoid a risk where possible. | Keep a new school out of an active floodway. | | Mitigation | Reduce the severity of losses. | Strengthen an existing school against shaking. | | Preparedness | Build readiness to act. | Prepare evacuation routes and conduct drills. | | Response | Take urgent life-saving action. | Rescue trapped people and provide emergency shelter. | | Recovery | Restore services and livelihoods. | Restore water, power and access to education. | | Rehabilitation / reconstruction | Restore functioning and rebuild damaged systems more safely. | Rebuild homes to appropriate safety standards. | ## Why some diagrams show four stages The four-stage cycle uses **mitigation → preparedness → response → recovery**. Prevention is treated with risk reduction; rehabilitation and reconstruction are included in recovery. The six-stage version separates them for explanation. These activities overlap; response can begin before impact, for example by evacuating after a cyclone warning. ## Build Back Better Recovery should reduce future risk. Rebuilding the same weak house in the same floodway may restore yesterday’s vulnerability. Safer siting, stronger design, accessible services and restored livelihoods improve resilience. ## Ten ethics names Solidarity, Joint responsibility, Non-discrimination, Humanity, Impartiality, Neutrality, Co-operation, Territorial sovereignty, Prevention, Role of media ## Ten drill headings Risk assessment → objectives → exits → assembly → communication → roles → inclusion → services → accountability → review. ## GIS answer Definition → data layers → what each layer reveals → decision/action → example → limitations. Keep the requested hazard and phase in every point. ## METHANE Major incident; Exact location; Type; Hazards; Access; Number and condition of casualties; Emergency services. --- ## TEE · Unit 5: case facts and answer structure Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/revision/revision-tee--cases/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/revision/revision-tee/cases All five units: a compact final pass | Case | Verified anchor | Management lesson | | --- | --- | --- | | Gujarat earthquake, 2001 | On 26 January 2001 a major earthquake struck the Kutch region of Gujarat. | Use seismic design and retrofitting, improve construction quality, protect lifelines, train communities, support owner/community participation and rebuild with risk reduction. | | Bhopal gas tragedy, 1984 | A major toxic gas release occurred at the Union Carbide pesticide plant in Bhopal during the night of 2–3 December 1984. | Maintain safety systems; assess off-site risk; coordinate industry, hospitals and authorities; disclose hazard information; practise response; provide accountable long-term recovery. | | Indian Ocean tsunami, 2004 | On 26 December 2004 a major undersea earthquake near Sumatra generated a destructive Indian Ocean tsunami. | Combine ocean/seismic monitoring with last-mile warnings, marked evacuation routes, drills, risk-informed coastal development and accessible safe destinations. | | Mumbai floods, 2005 | Extreme rainfall on 26 July 2005 caused severe flooding in Mumbai and surrounding areas. | Maintain drains; protect wetlands and natural flow paths; plan outfalls and detention; issue local warnings; regulate exposed development. | | Panshet dam failure and Pune floods, 1961 | Failure of Panshet Dam on 12 July 1961 released floodwater into the Pune river system and contributed to severe flooding. | Combine sound design and construction quality with dam surveillance, safe operation, breach-inundation mapping, downstream warnings and rehearsed emergency action plans. | | Uttarakhand disaster, 2013 | Extreme rainfall in June 2013 caused floods, debris flows and landslides across Uttarakhand, including the Kedarnath area. | Use basin and slope risk assessment, control unsafe construction, manage visitor exposure, improve warnings and routes and protect critical connections. River interlinking is not a proven simple solution to short-lead mountain flash floods. | | Kerala floods, 2018 | Heavy monsoon rainfall in August 2018 caused widespread flooding and landslides in Kerala. | Use integrated basin planning, forecast-informed reservoir coordination, wetland and drainage protection, accessible warnings and resilient reconstruction. Avoid assigning the entire disaster to one cause. | | Cyclone Nisarga, 2020 | Cyclone Nisarga made landfall near the Maharashtra coast on 3 June 2020. | Translate forecasts into local action using mass communication plus last-mile outreach; prepare shelters, protect lifelines and support recovery. Distinguish what authorities should do from a claim that each particular action is documented. | | Odisha cyclone lessons: 1999 and later preparedness | The 1999 Odisha super cyclone caused catastrophic coastal impacts. Later cyclone management emphasised stronger warning, shelters, evacuation and community preparedness. | A forecast saves lives when people receive it, trust it and can reach safe shelter; construction, ecosystem protection and recovery remain necessary. | | Drought in Maharashtra: applying the framework | Recurring drought in parts of Maharashtra illustrates a slow-developing water and livelihood crisis. | Emergency tankers address immediate need; sustainable water budgeting, watershed work and demand management address longer-term vulnerability. | **Yaad rakho:** Naam-date se answer nahi banta: cause → impact → response → lesson bhi likho. --- ## TEE · Final exam-writing pass Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/revision/revision-tee--paper/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/revision/revision-tee/paper All five units: a compact final pass ## TEE preparation order supported by the papers **What the available papers show:** the 12 recovered TEE sittings (1 December 2022 to 10 July 2026), containing 194 question parts, ask for explanations, comparisons, sketches, measures, checklists and case applications. No question in that set supplies values and requires a numerical calculation. The 1 December 2022 Q2A [10 marks] asks for the disaster equation and its components with an example; it is a theory question. This describes the available papers, not a restriction on a future examiner. 1. Complete all five syllabus units. Start with definitions and the management cycle, then study each hazard through causes, impacts and measures. 2. Practise the descriptive and applied answer forms below, including diagrams wherever the prompt asks for them. 3. Use the latest solved final and re-exam first, then the older papers to cover additional themes. Recurrence is useful practice evidence, not a prediction. 4. Keep lecture formulas and their meanings. The long calculation exercises are optional practice, separated from the TEE core reading. | Theme seen in recent papers | Exact examples from inspected originals | Preparation task | | --- | --- | --- | | Earthquake causes, waves and boundaries | 15 May 2026 Q1A [5], Q2A [10]; 10 July 2026 Q2A [10] | Explain the process and practise labelled sketches. | | Hazard, risk, vulnerability and classification | 15 May 2026 Q1C [5]; 10 July 2026 Q1A [5], Q4B [10] | Define each term and apply it to the named disaster. | | Flood, drought, landslide and cyclone measures | 15 May 2026 Q1B [5], Q3A [10], Q5A [10]; 10 July 2026 Q3A [10], Q5A [10], Q7A [10] | Name the measure, explain its mechanism, and justify it for the stated hazard. | | Cordon-off zones, cycle and disaster scale | 15 May 2026 Q2B [10], second printed Q5A [10]; 10 July 2026 Q2B [10], Q7B [10] | Draw labelled diagrams and explain the purpose of each part. | | Risk mapping, GIS and its application | 15 May 2026 Q3B [10], Q6A [10]; 10 July 2026 Q4A [10] | Connect data layers to a decision and the specified management phase. | | Training, drills, awareness and preparedness kits | 15 May 2026 Q1D [5], Q4A [10]; 10 July 2026 Q1D [5], Q6B [10] | Develop the requested checklist, roles or objectives. | | Warnings, media and incident reporting | 15 May 2026 Q6B [10]; 10 July 2026 Q1C [5], Q3B [10], Q6A [10] | Give the channel/protocol, explain its use, and apply it to the incident. | | Ethics and case-based analysis | 15 May 2026 Q4B [10], Q7B [10]; 10 July 2026 Q5B [10] | Explain the principles and justify a relevant example. | [15 May 2026 final →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-05-15--q1a/) · [10 July 2026 re-exam →](https://deep-learning-study-room.vercel.app/read/dm/tee/papers/paper-2026-07-10--q1a/) Use the actual paper instructions. The reviewed recent pattern is Q1 compulsory and any four complete questions from Q2–Q7. With 3 hours for 100 marks, allow roughly 1.8 minutes per mark before reserving reading/review time; adjust for diagrams and your writing speed. 1. Check every requested subpart and point count. 2. Draw a labelled diagram wherever asked; explain what it shows. 3. For each measure write what it is, how it works and a relevant example. 4. Distinguish mitigation, preparedness, response and recovery. 5. Use verified dates; do not invent casualty totals or site-specific claims. 6. Keep enough time to check numbering, completeness and unanswered compulsory parts. --- ## TEE · M2 portion and complete TEE coverage Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/about/sources--portion/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/about/sources/portion Source details are kept outside the reading flow M2 uses **M2 PPT 2026-27 - T1.pdf** as the supplied portion source, with short prerequisites from M1. Your confirmed M2 pattern is 2 + 2 compulsory and any two of three 3-mark questions. TEE follows **Syllabus\_Disaster Management.pdf**, with M1, M2 and matched library papers. | Source coverage | Reading chapters | | --- | --- | | M2 PDF pp 1–14 | Principles and ethics | | M2 pp 15–18 | Institutions, policy and guideline themes | | M2 pp 19–34 | Early warning systems | | M2 pp 35–72 | Earthquakes | | M2 pp 73–126 | Floods | | M2 pp 127–141 | Cyclones | | Syllabus unit 1 | Basics; classification/risk; all listed natural and human-induced hazards | | Syllabus unit 2 | Earthquakes including India; floods; drought; landslide; cases | | Syllabus unit 3 | Principles/cycle; policy and institutions; warning systems | | Syllabus unit 4 | Training, awareness, drills, GIS and remote sensing | | Syllabus unit 5 | Case-study answer book and applied PYQs | Page numbers above are PDF pages, not individual slide numbers. The syllabus states no prerequisite and allocates 45 teaching hours across the five units. All named syllabus topic groups have dedicated coverage; individual examples go beyond the minimum wording where needed to explain a paper question. --- ## TEE · Sources and corrections used in these notes Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/about/sources--references/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/about/sources/references Source details are kept outside the reading flow Teaching material: the supplied 141-page M2 PDF, 118-page M1 PDF and two-page syllabus. Exam material: 59 recovered DM PDFs from the user-provided library archive, reconciled into 12 distinct sittings; answer schemes were checked for the recent four sittings. Authored practice is labelled separately from actual papers. ## Corrections that affect answers - Love waves are surface waves; transform boundaries are different from divergent boundaries. - Seismic moment has units; moment magnitude is logarithmic. Unit conversions are shown before calculation. - The rational-method coefficient changes with the selected area and time units. - Earthquake early warning is not exact advance earthquake prediction. - Cyclone warnings can be issued in advance; use the IMD stage timing correctly. - Nisarga occurred in 2020. The major Uttarakhand/Kedarnath event studied here occurred in 2013. - Cordons follow assessed hazards; there are no universal separate P-wave, S-wave and surface-wave cordon rings. - River interlinking has conditional benefits and limitations; it is not a proven universal cure for mountain flash flooding. - Clinical or hazardous-material actions require appropriate training. Public protective guidance is kept separate from specialist operations. ## Primary references used for technical checks - [UNDRR: multi-hazard early warning](https://www.undrr.org/words-into-action/guide-multi-hazard-early-warning) - [IMD cyclone warning stages](https://rmcnewdelhi.imd.gov.in/MET_CENTRES/MCLUCKNOW/Lmeteorology/faq_cyclone.pdf) - [USGS magnitude, energy and intensity](https://www.usgs.gov/programs/earthquake-hazards/earthquake-magnitude-energy-release-and-shaking-intensity) - [USGS earthquake facts and protective actions](https://www.usgs.gov/programs/earthquake-hazards/earthquake-facts-earthquake-fantasy) - [Government clarification on Indian seismic standards, 1 April 2026](https://www.pib.gov.in/PressReleasePage.aspx?PRID=2247533&lang=2®=48) - [MHA: laws, policy and plans](https://www.ndmindia.mha.gov.in/ndmi/laws-plans-and-policies) - [NRSC disaster management support](https://www.nrsc.gov.in/nrscnew/Apps_DMS_overview.php?lang_code=en) - [JESIP: METHANE reporting](https://www.jesip.org.uk/joint-doctrine/m-ethane/) - [FHWA hydrology and rational-method units](https://www.fhwa.dot.gov/engineering/hydraulics/pubs/sa96078.pdf) - [GSDMA reconstruction programme](https://www.gsdma.org/Content/geerp-gerrp-4216) - [GSDMA mason training](https://www.gsdma.org/Content/masons-training-certification-programme-4223) - [NPTEL: Panshet case](https://archive.nptel.ac.in/content/storage2/courses/105106114/pdfs/Unit41/41_2.pdf) - [SEEDS](https://www.seedsindia.org/) - [Goonj](https://goonj.org/) - [ActionAid emergency preparedness](https://www.actionaidindia.org/emergency/emergency-preparedness/) - [CARE disaster response](https://www.care.org/our-work/disaster-response/emergencies/) The guide is a study resource, not an official marking scheme. Where a source question contains an error, its wording is retained with a correction in the answer. Checking coverage and arithmetic improves reliability; it cannot guarantee a particular examination score. ## Calculation provenance and exam priority **What the available papers show:** the 12 recovered TEE sittings (1 December 2022 to 10 July 2026), containing 194 question parts, ask for explanations, comparisons, sketches, measures, checklists and case applications. No question in that set supplies values and requires a numerical calculation. The 1 December 2022 Q2A [10 marks] asks for the disaster equation and its components with an example; it is a theory question. This describes the available papers, not a restriction on a future examiner. | Optional material | Actual basis | | --- | --- | | Magnitude comparisons — optional authored practice | M2 PDF p 55 teaches the tenfold amplitude relation. The numerical values below were added for explanation; none is a recovered PYQ. The approximate energy-ratio relation is an external scientific extension (USGS), not a formula explicitly found in the supplied lecture text. | | Seismic moment — optional lecture-formula practice | M2 PDF p 55 teaches seismic moment and moment magnitude. The three sets of values below were authored for practice, not taken from a recovered question paper. SI conversion and explicit unit conditions clarify the lecture formula. | | Runoff — lecture-adapted and authored examples | The first two examples adapt the barren-land and township values in M2 PDF p 88, with the unit error corrected. The percentage-increase request, time conversion and 20-hectare example add practice. These are lecture examples or authored extensions, not PYQs. | | Channel discharge — optional lecture-formula practice | M2 PDF p 100 prints Q = A × V in the desilting discussion. It supplies no drain dimensions or worked numerical. All three numerical scenarios below were authored for understanding, not recovered from exam papers. | | Risk relationships — optional illustrative arithmetic | M1 PDF p 33 gives probability × impact; pp 34–40 explain disaster-risk components and capacity. All numbers below were authored as illustrations. The actual 1 December 2022 Q2A [10 marks] requires a conceptual explanation and example, not a numerical answer. | Practice question marks are authored targets. Actual PYQ marks are transcribed from the original paper. Numerical practice is supplementary; no future paper composition is inferred from the presence of a formula in a slide. --- ## TEE · How to use these optional examples Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--read-first/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/read-first Supplementary worked examples · no numerical question found in the available 12 TEE sittings **What the available papers show:** the 12 recovered TEE sittings (1 December 2022 to 10 July 2026), containing 194 question parts, ask for explanations, comparisons, sketches, measures, checklists and case applications. No question in that set supplies values and requires a numerical calculation. The 1 December 2022 Q2A [10 marks] asks for the disaster equation and its components with an example; it is a theory question. This describes the available papers, not a restriction on a future examiner. These examples can make a taught formula easier to understand. They are not a required numerical paper pattern and carry no claimed exam marks. For TEE, finish the core theory, diagrams, case answers and actual PYQs before spending time on the extended sums. | Examples | Source status | | --- | --- | | Magnitude comparisons — optional authored practice | M2 PDF p 55 teaches the tenfold amplitude relation. The numerical values below were added for explanation; none is a recovered PYQ. The approximate energy-ratio relation is an external scientific extension (USGS), not a formula explicitly found in the supplied lecture text. | | Seismic moment — optional lecture-formula practice | M2 PDF p 55 teaches seismic moment and moment magnitude. The three sets of values below were authored for practice, not taken from a recovered question paper. SI conversion and explicit unit conditions clarify the lecture formula. | | Runoff — lecture-adapted and authored examples | The first two examples adapt the barren-land and township values in M2 PDF p 88, with the unit error corrected. The percentage-increase request, time conversion and 20-hectare example add practice. These are lecture examples or authored extensions, not PYQs. | | Channel discharge — optional lecture-formula practice | M2 PDF p 100 prints Q = A × V in the desilting discussion. It supplies no drain dimensions or worked numerical. All three numerical scenarios below were authored for understanding, not recovered from exam papers. | | Risk relationships — optional illustrative arithmetic | M1 PDF p 33 gives probability × impact; pp 34–40 explain disaster-risk components and capacity. All numbers below were authored as illustrations. The actual 1 December 2022 Q2A [10 marks] requires a conceptual explanation and example, not a numerical answer. | --- ## TEE · Magnitude comparisons — optional authored practice Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--magnitude/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/magnitude Supplementary worked examples · no numerical question found in the available 12 TEE sittings **Source of the calculations.** M2 PDF p 55 teaches the tenfold amplitude relation. The numerical values below were added for explanation; none is a recovered PYQ. The approximate energy-ratio relation is an external scientific extension (USGS), not a formula explicitly found in the supplied lecture text. **Definition.** A logarithmic scale expresses multiplicative changes as differences. A base-10 logarithm asks: “10 raised to what power gives this number?” **Simple meaning.** Log bas ulta sawaal hai: 10 ki kaunsi power? For example, 10² = 100, so log₁₀(100) = 2. On a compatible amplitude-based magnitude scale, a difference of 1 corresponds to a factor of 10 in measured amplitude after the required corrections. Earthquake energy follows the approximate relationship below; energy and amplitude are different quantities. $$ \Delta M=M_2-M_1,\qquad \frac{A_2}{A_1}=10^{\Delta M} $$ $$ \frac{E_2}{E_1}\approx10^{1.5\Delta M} $$ A is wave amplitude; E is released energy; Δ means “change in”. Amplitude comparisons assume the relevant scale and comparable/corrected recording conditions. Do not turn an energy ratio into a claim about building damage. ### Illustrative calculation (not a PYQ). Compare the amplitude and approximate energy of earthquakes of magnitude 6 and 5. #### Answer ## Given M₂ = 6; M₁ = 5. ## To find A₂/A₁ and E₂/E₁. ## Formula and why $$ A_2/A_1=10^{\Delta M};\quad E_2/E_1\approx10^{1.5\Delta M} $$ The magnitude difference is the exponent in the respective logarithmic relationship. ## Step-by-step solution #### Step 1. Find the difference $$ \Delta M=6-5=1 $$ #### Step 2. Find amplitude ratio $$ A_2/A_1=10^1=10 $$ #### Step 3. Find energy ratio $$ E_2/E_1\approx10^{1.5}=31.6228 $$ **Final answer:** 10 times the amplitude and approximately 31.6 times the energy. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). Compare magnitude 7 with magnitude 5 using amplitude and energy ratios. #### Answer ## Given M₂ = 7; M₁ = 5. ## To find The two ratios. ## Formula and why $$ A_2/A_1=10^{\Delta M};\quad E_2/E_1\approx10^{1.5\Delta M} $$ There are two magnitude units between the events, so multiply factors through the exponent. ## Step-by-step solution #### Step 1. Subtract magnitudes $$ \Delta M=7-5=2 $$ #### Step 2. Calculate amplitude $$ 10^2=100 $$ #### Step 3. Calculate energy $$ 10^{1.5\times2}=10^3=1000 $$ **Final answer:** 100 times the amplitude; approximately 1,000 times the energy. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). A corrected amplitude ratio is 100. Find the magnitude difference. If the smaller event has magnitude 4.3, estimate the larger event’s magnitude. #### Answer ## Given A₂/A₁ = 100; M₁ = 4.3. ## To find ΔM and M₂. ## Formula and why $$ \Delta M=\log_{10}(A_2/A_1),\quad M_2=M_1+\Delta M $$ The logarithm reverses exponentiation: 10² is 100. ## Step-by-step solution #### Step 1. Take the base-10 logarithm $$ \Delta M=\log_{10}(100)=2 $$ #### Step 2. Add the difference $$ M_2=4.3+2=6.3 $$ **Final answer:** Magnitude difference 2; larger magnitude 6.3. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. **Calculator:** use the *log* key for base 10, not *ln*. For 101.5, use the calculator’s 10ˣ function with exponent 1.5. Keep brackets around a multiplied exponent. **Yaad rakho:** +1 magnitude: ×10 amplitude, about ×32 energy. --- ## TEE · Seismic moment — optional lecture-formula practice Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--moment/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/moment Supplementary worked examples · no numerical question found in the available 12 TEE sittings **Source of the calculations.** M2 PDF p 55 teaches seismic moment and moment magnitude. The three sets of values below were authored for practice, not taken from a recovered question paper. SI conversion and explicit unit conditions clarify the lecture formula. **Definition.** Seismic moment measures source strength using rock rigidity, slipped fault area and average slip. Moment magnitude converts this physical measure into a logarithmic magnitude. **Simple meaning.** Pehle moment ke units dekho, tab magnitude wali constant choose karo. $$ M_0=\mu A D=\mu LWD $$ | Symbol | Meaning | SI unit | | --- | --- | --- | | μ | Shear modulus / rigidity of rock | N/m² (Pa) | | A = L × W | Area of the fault that slipped | m² | | D | Average slip | m | | M₀ | Seismic moment | N·m | $$ M_w=\frac{2}{3}\left(\log_{10}M_0-9.1\right)\quad(M_0\text{ in N m}) $$ $$ M_w\approx\frac{2}{3}\log_{10}M_0-10.7\quad(M_0\text{ in dyn cm}) $$ The second convention is printed in the lecture without its unit condition. Do not insert N·m into the −10.7 formula. Since 1 N = 10⁵ dyn and 1 m = 100 cm, **1 N·m = 10⁷ dyn·cm**. The constants are rounded conventions, so the two formula results may differ slightly at the last decimal. ### Illustrative calculation (not a PYQ). A fault slips over an area 10 km long and 5 km wide with average slip 1 m. Rock rigidity is 3 × 10¹⁰ N/m². Calculate seismic moment and moment magnitude using SI units. #### Answer ## Given L=10 km; W=5 km; D=1 m; μ=3×10¹⁰ N/m². ## To find M₀ and M𝑤. ## Formula and why $$ M_0=\mu LWD;\quad M_w=\tfrac23(\log_{10}M_0-9.1) $$ Convert lengths to metres before forming area so the moment is in N·m. ## Step-by-step solution #### Step 1. Convert lengths $$ L=10\times1000=10000\text{ m};\quad W=5000\text{ m} $$ #### Step 2. Find the slipped area $$ A=10000\times5000=5\times10^7\text{ m}^2 $$ #### Step 3. Multiply rigidity, area and slip $$ M_0=(3\times10^{10})(5\times10^7)(1)=1.5\times10^{18}\text{ N m} $$ #### Step 4. Take the logarithm $$ \log_{10}(1.5\times10^{18})=18.176091 $$ #### Step 5. Convert to magnitude $$ M_w=\tfrac23(18.176091-9.1)=6.050727 $$ **Final answer:** M₀ = 1.5 × 10¹⁸ N·m; M𝑤 ≈ 6.05. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). The seismic moment is 10²⁵ dyn·cm. Calculate moment magnitude using the lecture convention. #### Answer ## Given M₀=10²⁵ dyn·cm. ## To find M𝑤. ## Formula and why $$ M_w=\tfrac23\log_{10}M_0-10.7 $$ The moment is already in dyn·cm, so this constant is appropriate. ## Step-by-step solution #### Step 1. Take log $$ \log_{10}(10^{25})=25 $$ #### Step 2. Multiply then subtract $$ M_w=\tfrac23\times25-10.7=16.666667-10.7=5.966667 $$ **Final answer:** M𝑤 ≈ 5.97. Do not compute ⅔ × (25 − 10.7); that is a different expression. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. ### Illustrative calculation (not a PYQ). If area and rigidity remain fixed but slip doubles, how do moment and moment magnitude change? #### Answer ## Given μ and A fixed; D₂ = 2 D₁. ## To find M₀ ratio and ΔM𝑤. ## Formula and why $$ M_0=\mu AD;\quad \Delta M_w=\tfrac23\log_{10}(M_{02}/M_{01}) $$ Multiplication makes moment proportional to slip; subtracting the magnitude equations cancels the common constant. ## Step-by-step solution #### Step 1. Find moment ratio $$ M_{02}/M_{01}=2 $$ #### Step 2. Take log $$ \log_{10}(2)=0.301030 $$ #### Step 3. Find magnitude change $$ \Delta M_w=\tfrac23\times0.301030=0.200687 $$ **Final answer:** Moment doubles; magnitude increases by about 0.201, not by a factor of two. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage. **Yaad rakho:** Moment = rigidity × area × slip; magnitude = log of moment. --- ## TEE · Runoff — lecture-adapted and authored examples Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--runoff/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/runoff Supplementary worked examples · no numerical question found in the available 12 TEE sittings **Source of the calculations.** The first two examples adapt the barren-land and township values in M2 PDF p 88, with the unit error corrected. The percentage-increase request, time conversion and 20-hectare example add practice. These are lecture examples or authored extensions, not PYQs. **Definition.** Runoff is water that flows over the surface rather than being retained or infiltrating. The rational method is a simplified peak-flow estimate for suitable small catchments under stated rainfall assumptions. **Simple meaning.** C zyada matlab same rain se zyada runoff. Area ka unit change hua toh factor bhi change hoga. $$ Q=0.27778\,C I A\quad[Q:\text{m}^3/\text{s},\ I:\text{mm/h},\ A:\text{km}^2] $$ | Symbol | Meaning | | --- | --- | | C | Dimensionless runoff coefficient; a higher value represents a greater runoff contribution. | | I | Rainfall intensity: depth of rain per hour, not total storm depth. | | A | Catchment area draining to the point of interest, not the channel cross-section. | | Q | Estimated peak discharge: volume per unit time. | ## Where the conversion factor comes from 1 mm = 0.001 m; 1 km² = 1,000,000 m². So 1 mm falling on 1 km² produces 1,000 m³ of rainfall volume. Dividing one hour by 3,600 seconds gives 1,000/3,600 = 0.27778. The runoff coefficient multiplies this rainfall input. $$ Q=1000CIA\ (\text{m}^3/\text{h},\ A\text{ in km}^2) $$ $$ Q=10CIA\ (\text{m}^3/\text{h},\ A\text{ in hectares}) $$ **Unit correction:** “10 CIA” is compatible with area in hectares and output in m³/h. It is not compatible with area in km² and the same output unit. The lecture mixes these labels; always write the units in your working. 1 km² = 100 hectares. ### Illustrative calculation (not a PYQ). A 1 km² catchment receives rainfall of intensity 75 mm/h. Using C = 0.5, estimate runoff in m³/h and m³/s. #### Answer ## Given A=1 km²; I=75 mm/h; C=0.5. ## To find Runoff discharge in both units. ## Formula and why $$ Q_{\rm hour}=1000CIA,\quad Q_{\rm second}=Q_{\rm hour}/3600 $$ The first formula keeps time in hours; dividing by 3,600 converts to seconds. ## Step-by-step solution #### Step 1. Calculate rainfall volume rate $$ 1000\times75\times1=75000\text{ m}^3/\text{h} $$ #### Step 2. Apply runoff coefficient $$ Q=0.5\times75000=37500\text{ m}^3/\text{h} $$ #### Step 3. Convert time unit $$ Q=37500/3600=10.416667\text{ m}^3/\text{s} $$ **Final answer:** 37,500 m³/h, or about 10.417 m³/s. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. ### Illustrative calculation (not a PYQ). The same catchment becomes a township with C = 0.9. Find its new runoff and the percentage increase. #### Answer ## Given A=1 km²; I=75 mm/h; C changes from 0.5 to 0.9; old Q=37,500 m³/h. ## To find New Q and percentage increase. ## Formula and why $$ Q=1000CIA;\quad \%\text{increase}=\frac{Q_{new}-Q_{old}}{Q_{old}}\times100 $$ Only C changes, so the increase reflects land-cover change in this simplified comparison. ## Step-by-step solution #### Step 1. Find new discharge $$ Q_{new}=1000(0.9)(75)(1)=67500\text{ m}^3/\text{h} $$ #### Step 2. Subtract old discharge $$ 67500-37500=30000\text{ m}^3/\text{h} $$ #### Step 3. Divide by the old value $$ (30000/37500)\times100=80\% $$ #### Step 4. Convert new discharge $$ 67500/3600=18.75\text{ m}^3/\text{s} $$ **Final answer:** 67,500 m³/h =18.75 m³/s; an 80% increase. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. ### Illustrative calculation (not a PYQ). For a 20-hectare catchment with C = 0.6 and rainfall intensity 50 mm/h, estimate discharge in m³/s. #### Answer ## Given A=20 ha; C=0.6; I=50 mm/h. ## To find Q in m³/s. ## Formula and why $$ Q=10CIA/3600\quad(A\text{ in ha}) $$ The area is in hectares, so use the hectare conversion. ## Step-by-step solution #### Step 1. Calculate hourly discharge $$ Q=10(0.6)(50)(20)=6000\text{ m}^3/\text{h} $$ #### Step 2. Convert to seconds $$ Q=6000/3600=1.666667\text{ m}^3/\text{s} $$ **Final answer:** Q ≈1.667 m³/s. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. These are lecture-formula practice examples, not verified past-paper questions. Real drainage design needs rainfall duration, time of concentration, catchment suitability and local design standards; Q alone does not give the total flood volume. **Yaad rakho:** Write units before numbers. --- ## TEE · Channel discharge — optional lecture-formula practice Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--channel-flow/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/channel-flow Supplementary worked examples · no numerical question found in the available 12 TEE sittings **Source of the calculations.** M2 PDF p 100 prints Q = A × V in the desilting discussion. It supplies no drain dimensions or worked numerical. All three numerical scenarios below were authored for understanding, not recovered from exam papers. **Definition.** Discharge is the volume of water passing a cross-section per unit time. For a known flowing cross-sectional area and average velocity, Q = Av. **Simple meaning.** Cross-section mein kitna area hai × paani kitni speed se jaa raha hai. $$ Q=A_{flow}\,v $$ Aflow is the wet cross-sectional area in m²; v is average velocity in m/s. Multiplying m² by m/s gives m³/s. This A is different from the catchment area used in the rational method. ### Illustrative calculation (not a PYQ). Water flows through a rectangular drain 2 m wide and 1.5 m deep at an average velocity of 0.8 m/s. Find discharge. #### Answer ## Given Width=2 m; flowing depth=1.5 m; v=0.8 m/s. ## To find Q. ## Formula and why $$ A_{flow}=\text{width}\times\text{depth},\quad Q=A_{flow}v $$ The cross-section is rectangular, so width times flowing depth gives wet area. ## Step-by-step solution #### Step 1. Find area $$ A_{flow}=2\times1.5=3\text{ m}^2 $$ #### Step 2. Find discharge $$ Q=3\times0.8=2.4\text{ m}^3/\text{s} $$ **Final answer:** 2.4 m³/s. #### Practical interpretation · Sizing the flowing area At a discharge of 6 m³/s and a mean velocity of 1.5 m/s, a flowing area of 4 m² carries the stated flow because 1.5 × 4 = 6. This is the wetted flow area, not automatically the entire excavated channel area including freeboard. ### Illustrative calculation (not a PYQ). Silt reduces the same drain’s flowing depth from 1.5 m to 1 m. Assume the average velocity remains 0.8 m/s. Find the reduction in discharge. #### Answer ## Given Width=2 m; new depth=1 m; v=0.8 m/s; old Q=2.4 m³/s. ## To find New Q and reduction. ## Formula and why $$ Q=A_{flow}v $$ The fixed-velocity assumption isolates the effect of reduced cross-sectional area. ## Step-by-step solution #### Step 1. Find reduced area $$ A_{flow}=2\times1=2\text{ m}^2 $$ #### Step 2. Find reduced discharge $$ Q=2\times0.8=1.6\text{ m}^3/\text{s} $$ #### Step 3. Calculate loss $$ 2.4-1.6=0.8\text{ m}^3/\text{s} $$ #### Step 4. Express as percentage $$ (0.8/2.4)\times100=33.333\% $$ **Final answer:** Reduction =0.8 m³/s, or 33.3% under the assumption. #### Practical interpretation · Sizing the flowing area At a discharge of 6 m³/s and a mean velocity of 1.5 m/s, a flowing area of 4 m² carries the stated flow because 1.5 × 4 = 6. This is the wetted flow area, not automatically the entire excavated channel area including freeboard. ### Illustrative calculation (not a PYQ). A channel must carry 6 m³/s at an average velocity of 1.5 m/s. Find the required flowing cross-sectional area. #### Answer ## Given Q=6 m³/s; v=1.5 m/s. ## To find Aflow. ## Formula and why $$ Q=A_{flow}v\quad\Rightarrow\quad A_{flow}=Q/v $$ Divide both sides by velocity to isolate area. ## Step-by-step solution #### Step 1. Substitute the known values $$ A_{flow}=6/1.5 $$ #### Step 2. Calculate and write units $$ A_{flow}=4\text{ m}^2 $$ **Final answer:** Required flowing area =4 m², under the stated average velocity. #### Practical interpretation · Sizing the flowing area At a discharge of 6 m³/s and a mean velocity of 1.5 m/s, a flowing area of 4 m² carries the stated flow because 1.5 × 4 = 6. This is the wetted flow area, not automatically the entire excavated channel area including freeboard. Desilting may restore lost capacity, but actual velocity, downstream water level and channel stability also change. A calculation holding velocity fixed is a teaching comparison, not proof that desilting alone will prevent floods. **Yaad rakho:** Catchment area receives rain; channel area carries flow. --- ## TEE · Risk relationships — optional illustrative arithmetic Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--risk/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/risk Supplementary worked examples · no numerical question found in the available 12 TEE sittings **Source of the calculations.** M1 PDF p 33 gives probability × impact; pp 34–40 explain disaster-risk components and capacity. All numbers below were authored as illustrations. The actual 1 December 2022 Q2A [10 marks] requires a conceptual explanation and example, not a numerical answer. **Definition.** Disaster risk is the potential loss associated with a hazardous event and the exposed, vulnerable system. A classroom index can illustrate how hazard, vulnerability and capacity interact; it is not automatically a real probability. **Simple meaning.** Risk score aur probability alag hain. Formula question mein kaunsa diya hai woh pehle dekho. $$ R\propto\frac{H\times V}{C} $$ $$ R_{index}=\frac{H\times E\times V}{C}\quad\text{if exposure is explicitly included} $$ H is hazard, V vulnerability, E exposure and C capacity. More hazard/exposure/vulnerability generally increases potential loss; stronger capacity can reduce it. Scores must be defined and comparable; do not mix rupees, people and undefined scores and call the result a probability. A separate expected-loss model is probability × consequence when probability and consequence are clearly given. ### Illustrative calculation (not a PYQ). Using the stated classroom index R = HV/C, calculate risk for H = 6, V = 4 and C = 3. #### Answer ## Given H=6; V=4; C=3; prescribed index R=HV/C. ## To find The index value. ## Formula and why $$ R=HV/C $$ The question defines this model; it does not supply a separate exposure factor. ## Step-by-step solution #### Step 1. Multiply hazard and vulnerability $$ HV=6\times4=24 $$ #### Step 2. Divide by capacity $$ R=24/3=8 $$ **Final answer:** R=8 index units, not an 8% probability. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Illustrative calculation (not a PYQ). In the same model, capacity rises from 3 to 6 while H=6 and V=4 remain unchanged. Find the new index and percentage reduction. #### Answer ## Given Old R=8; new C=6; H=6; V=4. ## To find New R and reduction. ## Formula and why $$ R=HV/C;\quad \%\text{reduction}=\frac{R_{old}-R_{new}}{R_{old}}100 $$ Only capacity changes, so the inverse relation halves the index. ## Step-by-step solution #### Step 1. Find new index $$ R_{new}=(6\times4)/6=4 $$ #### Step 2. Find reduction $$ 8-4=4 $$ #### Step 3. Calculate percentage $$ (4/8)\times100=50\% $$ **Final answer:** New index 4; reduction 50%. #### Illustrative application · Two communities exposed to the same hazard Two settlements may face similar heavy rain but experience different losses because of drainage, housing, warnings and ability to evacuate. The example separates the hazardous event from exposure, vulnerability and capacity, which together influence disaster risk. ### Illustrative calculation (not a PYQ). A specified damaging event has a 0.1 annual probability and would cause an estimated loss of ₹20 lakh if it occurs. Estimate expected annual loss for this simplified one-event model. #### Answer ## Given p=0.1; conditional loss=₹20 lakh. ## To find Expected annual loss. ## Formula and why $$ \text{Expected loss}=p\times\text{conditional loss} $$ Weight the possible consequence by its occurrence probability; this is a different model from an arbitrary risk score. ## Step-by-step solution #### Step 1. Multiply probability and consequence $$ 0.1\times20=2 $$ #### Step 2. State the interpretation The result is a long-run expected value under the model, not a prediction that exactly ₹2 lakh will be lost every year. **Final answer:** ₹2 lakh per year expected loss in the stated model. #### Practical interpretation · Expected loss is not a yearly bill A 10% annual probability of a ₹20 lakh loss gives a simplified expectation of ₹2 lakh per year. This is a probability-weighted average for planning, not a prediction that ₹2 lakh will be lost each year or that the event happens exactly once in ten years. **Yaad rakho:** Hazard and vulnerability up: risk up. Capacity up: risk down. --- ## TEE · Two additional authored calculation exercises Canonical: https://deep-learning-study-room.vercel.app/read/dm/tee/practice/calculations--extra-exercises/ Reader: https://deep-learning-study-room.vercel.app/dm/#tee/practice/calculations/extra-exercises Supplementary worked examples · no numerical question found in the available 12 TEE sittings Added runoff and magnitude exercises. Their numbers and question selection were written for practice; this is not a recovered paper or a confirmed M2/TEE composition. ### Illustrative calculation (not a PYQ). A catchment has C = 0.6, I = 50 mm/h and area = 0.5 km². Estimate peak runoff in m³/s using the rational method. #### Answer ## Given | Given | Value | | --- | --- | | Runoff coefficient C | 0.6 | | Rainfall intensity I | 50 mm/h | | Catchment area A | 0.5 km² | ## To find Estimated peak runoff Q in m³/s. ## Formula and why $$ Q=0.27778CIA $$ The factor converts mm/h over km² to m³/s. Assume the rainfall intensity and catchment meet the rational-method assumptions. ## Step-by-step solution #### Step 1. Multiply coefficient and intensity $$ 0.6\times50=30 $$ #### Step 2. Multiply by catchment area $$ 30\times0.5=15 $$ #### Step 3. Convert to discharge $$ Q\approx0.27778\times15=4.1667\,\mathrm{m^3/s} $$ **Final answer:** Approximately 4.17 m³/s. #### Illustrative application · Two catchments in the same rain A paved catchment can send a larger fraction of rainfall into rapid runoff than a more permeable one. In a rational-method problem, this appears through the runoff coefficient C; keep the area and rainfall units consistent before calculating discharge. ### Illustrative calculation (not a PYQ). Two earthquakes have magnitudes 6 and 5. Find the amplitude ratio and approximate energy ratio. #### Answer ## Given | Quantity | Value | | --- | --- | | Larger magnitude | 6 | | Smaller magnitude | 5 | ## To find Larger-to-smaller amplitude and energy ratios. ## Formula and why $$ A_2/A_1=10^{\Delta M},\qquad E_2/E_1\approx10^{1.5\Delta M} $$ Magnitude is logarithmic. The energy relation has a different exponent from the amplitude relation. ## Step-by-step solution #### Step 1. Calculate magnitude difference $$ \Delta M=6-5=1 $$ #### Step 2. Calculate amplitude ratio $$ 10^1=10 $$ #### Step 3. Calculate energy ratio $$ 10^{1.5\times1}=10^{1.5}\approx31.62 $$ **Final answer:** Amplitude ratio 10:1; approximate energy ratio 31.62:1. #### Illustrative application · Same magnitude, different local effects One earthquake has a source magnitude, but a nearby settlement with vulnerable buildings may experience stronger damaging effects than a distant settlement on firm ground. A one-unit magnitude difference means a tenfold amplitude ratio in the stated logarithmic comparison; it does not mean ten times the damage.