ANNA UNIVERSITY COIMBATORE B.E./B.Tech. …chettinadtech.ac.in/storage/EVS-QNS.pdf · (ii) Explain...

ANNA UNIVERSITY COIMBATORE

B.E./B.Tech. DEGREE EXAMINATION – MAY/JUNE 2008.

SECOND SEMESTER

CY 1201 – ENVIRONMENT SCIENCE

(Common to all the Branches of B.E./B.Tech.)

(Regulation 2008)

Time: Three hours Maximum: 100 marks

PART – A (20 x 2 = 40 marks)

Answer ALL questions.

1. Define the term “Biodiversity”. Write down the three different levels of Biodiversity.

2. What is the impact of deforestation on the environment?

3. Indicate the four distinct layers of the atmosphere.

4. Give any four major secondary air pollutants that are present in the environment.

5. What are the Point and Non – point sources of water pollution?

6. Define ‘Bioluminescence’.

7. Mention any two effects of thermal pollution.

8. Distinguish between sewage and effluent.

9. What are the causes of soil pollution?

10. Differentiate between desertification and land degradation.

11. What are hazardous wastes? Give any two major sources of hazardous wastes.

12. What is Composting? How does it occur?

13. What are renewable and non – renewable energy sources?

14. What is sustainable development?

15. Bring out the principle involved in Green Accounting.

16. What is nanotechnology?

17. Mention the biogeographic regions of India.

18. What is meant by the ‘Ethical value of biodiversity’?

19. List out atleast four major environmental issues.

20. Name any two Institution/agencies in India that work for environmental protection.

PART – B (5 x 12 = 60 marks)

Answer any FIVE questions.

21. (a) Discuss briefly the harmful effects of global warming. How can it be controlled? (6)

(b) Explain the mechanism involved in Ozone layer depletion. (6)

22. (a) What is acid rain? Explain the effects of acid rain on the environment. (6)

(b) What are the causes of noise pollution? Explain the control measures to be taken to control

noise pollution. (6)

23. (a) Discuss in detail the factors responsible for land degradation. What are the means to prevent

land degradation? (6)

(b) What are the ill effects of hazardous wastes? How do you manage them? (6)

24. (a) Discuss the merits and demerits of Wind energy. (6)

(b) Explain briefly the applications of nanotechnology in medicine. (6)

25. Elaborate the concepts and the importance of sustainable development. (12)

26. Explain the important provisions in the Wild Life Protection and Environment

Protection Acts. (12)

27. (a) Discuss in detail the strategy adopted to conserve biodiversity. (6)

(b) Explain the impact of the environmental pollution on human health. (6)

28. (a) Narrate the reasons for the population explosion in India. (6)

(b) Briefly explain the need and scope of the Green Power. (6)

_____________

B.E./B.Tech. DEGREE EXAMINATION – NOVEMBER/DECEMBER 2008.

FIFTH SEMESTER

CY 1201 – ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to Mechanical Engg, Metallurgical Engg, Production Engg, Aeronautical Engg,

Mechatronics Engg, food Technology, Automobile Engg and Information Tech. of

B.E./B.Tech.)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. State the significance and scope of environmental education.

2. Mention the various causes of desertification.

3. What are the characteristics of the Desert ecosystem?

4. ‘India is a mega – diversity nation’ – Account.

5. What is called thermal pollution?

6. State the role and responsibility of an individual in the prevention of pollution.

7. Mention the causes and effects of acid rain.

8. State a few drawbacks of Pollution related Acts.

9. Define Doubling Time with reference to population growth.

10. Name any two Institution/agencies in India that work for environmental protection.

PART – B (5 x 16 = 80 marks)


11. (a) (i) Explain any two conflicts over water, confining to our nation (8)

(ii) Discuss the impacts of handling the mineral resources for extraction and subsequent

utilization, on the environment. (8)

OR

(b) (i) Discuss in detail the causes and consequences of over exploitation of forest resources. (8)

(ii) Give a brief account of renewable energy resources and their significance. (8)

12. (a) (i) Write short note on Ecological pyramids and their types. (8)

(ii) Substantiate the value of Biodiversity with suitable illustrations and statistical evidences. (8)

OR

(b) (i) What is an ecosystem? Explain the structure, characteristics and types of the aquatic

ecosystem. (8)

(ii) How is the biodiversity conserved? Explain. (8)

13. (a) (i) Explain the causes, effects and control measures of air pollution. (8)

(ii) Give a comparative account of urban and industrial wastes in terms of their sources,

characteristics and management and disposal methods. (8)

OR

(b) (i) Explain the causes, effects and control measures of marine pollution. (8)

(ii) Write a short note on disaster management. (8)

14. (a) (i) Give a brief account of Global warming (8)

(ii) Bring out the various details of Wasteland Reclamation Practices. (8)

OR

(b) (i) Give a detailed account on ozone layer depletion. (8)

(ii) How is environment protected through Legislation? Explain. (8)

15. (a) (i) Explain the terms with statistical support: Exponential Growth and Population Explosion.

Also explain the theories behind them. (8)

(ii) Write a note on Women and Child welfare. (8)

OR

(b) (i) What is Value education? Explain. (8)

(ii) Explain the role of Information Technology in Environment and Human health. (8)

____________


THIRD SEMESTER


(Common to all branches (EXCEPT Bio-medical Engg/Information Technology/food

Technology and Petroleum Engg of B.E./B.Tech.) also common to B.E. (Part-Time)

Second Semester – Regulation 2005)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. What is meant by Green house gases?

2. What are the roles of women in environmental protection?

3. What is meant by non – point pollution?

4. What is meant by CDM?

5. What is meant by key stone species?

6. What are the various sources of radioactive pollution?

7. What do you understand by the terms flora and fauna?

8. What is meant by environmental audit?

9. What is meant by NIMBY syndrome?

10. What is meant by ISO 14000?

PART – B (5 x 16 = 80 marks)


11. (a) (i) Explain the significance of sustainable development (4)

(ii) Mention any four Acts enacted by our country that deals with the environmental

pollution and discuss their provisions in detail. (12)

OR

(b) (i) Discuss the significance of any five parameters of drinking water quality standards. (10)

(ii) Discuss the Indian Ambient air quality and noise standards. (6)

12. (a) (i) Discuss the various factors influencing soil degradation. (8)

(ii) Discuss the various sources of energy and linkage between energy and environment. (8)

OR

(b) (i) Explain the role of an individual in environmental protection. (8)

(ii) Discuss the environmental effects due to agriculture. (8)

13. (a) (i) Explain the characteristic features and function of forest eco – system. (10)

(ii) Explain the features of aquatic eco – system. (6)

OR

(b) (i) What are the various hot spots of Bio Diversity in India? (4)

(ii) Discuss the endangered and endemic species of India. (12)

14. (a) (i) Explain the various sources, effects and methods of control of water pollution. (4+4+4)

(ii) Discuss about the significance of hazardous waste management. (4)

OR

(b) (i) Explain the sources, effects and control of industrial noise pollution. (12)

(ii) Discuss about ozone hole and ozone depleting substances. (4)

15. (a) Discuss about

(i) population growth and environmental issues. (8)

(ii) Environmental ethics. (8)

OR

(b) (i) Explain the role of NGO’s in environmental protection and health. (6)

(ii) Discuss about the environmental and social problems faced by a large Indian city like

Chennai. (10)

____________


SECOND SEMESTER


(Common to : Bio – medical, Electronics and CommunicationEngg and Information Technology,

and Part – Time B.E., First Semester, Civil, Electrical and Electronics, Electronics and

Communication and Computer Science and Engg)

(Regulation 2005)


PART – A (10 x 2 = 20 marks)


1. Define environmental science.

2. State any problems caused by the construction of Dam.

3. What are the Conventional sources of Energy for the mankind?

4. Define producers.

5. Name any four ecosystems.

6. Enumerate the human activities which destroy the biodiversity.

7. Write any two causes of soil pollution.

8. When a sound causes noise pollution?

9. What is acid rain?

10. State the role of information technology in Environment.

PART – B (5 x 16 = 80 marks)


11. (i) Population explosion affects the environment seriously – Discuss. (8)

(ii) Deterioration of Environments leads to deterioration of human health. Justify. (8)

12. (a) Explain in detail the role of an individual in conservation of natural resources. (16)

OR

(b) What are the major causes of deforestation ? Discuss its consequences. (16)

13. (a) (i) Discuss the threat faced by Indian Biodiversity. (8)

(ii) Explain the strategy adopted to conserve biodiversity. (8)

OR

(b) What is an ecosystem? Describe the structure and function of various components of an

ecosystem. (16)

14. (a) What are the major pollutants of atmosphere? Enumerate the adverse effects caused by

these pollutants. (16)

OR

(b) (i) How will you take care of Solid wastes generated in urban areas? (10)

(ii) Explain Bhopal gas tragedy. (6)

15. (a) (i) What is meant by Rain Water Harvesting? Why is it necessary now – a – days? (8)

(ii) Discuss about Global Warming. (8)

OR

(b) Name the laws that have been framed for environmental protection and mention the

objectives for each act. (16)

____________

B.E./B.Tech. DEGREE EXAMINATION, APRIL/MAY 2008.

THIRD SEMESTER


(Common to all branches (EXCEPT Bio-medical Engg/Information Technology/food

Technology and Petroleum Engg of B.E./B.Tech.) also common to B.E. (Part-Time)

Second Semester – Regulation 2005)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. Write any two adverse effects caused by overgrazing.

2. What is desertification? Give any two reasons for it.

3. Define the terms producers and consumers.

4. What is meant by genetic diversity?

5. Define soil pollution.

6. What are landslides?

7. What are the advantages of rain water harvesting?

8. Define air pollutant according to “air prevention and control of pollution act”.

9. What is population explosion?

10. What are the major precautions to avoid AIDS?

PART – B (5 x 16 = 80 marks)


11. (a) (i) What is deforestation? Enumerate and discuss the various effects of deforestation. (8)

(ii) Discuss the environmental effects of extracting and using mineral resources. (8)

OR

(b) (i) Discuss the effects of dams on forests and tribal people. (8)

(ii) Discuss the problems of pesticide on modern agriculture. (8)

12. (a) (i) Define the ecosystem. Give an account of the structure and function of an ecosystem. (8)

(ii) Explain the flow of energy through the atmosphere and its utilities in an ecosystem. (8)

OR

(b) (i) What do you understand by hot spots of biodiversity? Name and briefly describe two hot

spots of biodiversity that extend in India. (8)

(ii) Explain in – situ and ex – situ conservation along with their merits and limitations. (8)

13. (a) Discuss the causes and effects of

(i) Air pollution (8)

(ii) Water pollution (8)

OR

(b) What is earthquake? Enumerate its effects. What measures should be taken to mitigate their

disaster? (16)

14. (a) Explain the following:

(i) Ozone depletion (8)

(ii) Global warming (8)

OR

(b) Explain the following:

(i) Wildlife Protective Act (8)

(ii) Forest Preservative Act (8)

15. (a) Discuss the methods and strategies of imparting value education. (16)

OR

(b) Briefly describe the various schemes launched for women and child welfare in India. (16)

____________

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2006.

SEVENTH SEMESTER

CE 071 - PRINCIPLES OF ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to all branches)


PART – A (10 x 2 = 20 marks)


1. What is meant by biosphere?

2. Distinguish between primary and secondary consumer.

3. What is meant by anthropogenic sources of pollution?

4. What is meant by desertification?

5. Distinguish between stable and unstable atmosphere.

6. What is meant by eutrophication?

7. What is meant by e – waste?

8. Distinguish between point and non – point sources of water pollution.

9. Why world environment day is observed on 5th June every year?

10. Distinguish between environmental audit and environmental impact.

PART – B (5 x 16 = 80 marks)


11. (a) (i) What is meant by deforestation? What are the impacts of deforestation on the

environment. (8)

(ii) Discuss the impacts of ‘Green Revolution’ on ecosystem. (8)

OR

(b) (i) What is meant by soil erosion? What are its causes? Suggest in – situ remedies. (8)

(ii) Explain the food chain and food web. (8)

12. (a) (i) Distinguish between primary and secondary air pollutants. Give examples. (4)

(ii) What are the causative factors for global warming and ozone layer depletion?

Suggest remedial measures. (12)

OR

(b) (i) ‘Almost all the rivers in India have become sewage carriers’ – Explain the reasons for the

aforesaid statement. (6)

(ii) Interlinking of rivers is the solution for drought as well as flood situation in India –

Critically comment. (10)

13. (a) With neat block diagrams explain the various unit operations and processes in a municipal

sewage treatment plant. (16)

OR

(b) (i) What is meant by solid waste? How is it classified? Explain its disposal by incineration. (8)

(ii) What is meant by leachate? Discuss its impacts on ground water pollution. How can we

prevent ground water pollution by leachate? (8)

14. (a) ‘The invention of plastic a boon or a bane’ – Critically review the statement in the present

day context. (16)

OR

(b) (i) Explain the polluter pay principle in environmental sustainability. (8)

(ii) ‘Good environmental management system will boost up the profit of the industry’ –

Review. (8)

15. (a) Discuss the international efforts on protection of ozone layer. (16)

OR

(b) (i) Write a note on Pollution Control Boards. (8)

(ii) Discuss the key features of Environmental Protection Act. (8)

____________

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2005.

SEVENTH SEMESTER

CE 071 - PRINCIPLES OF ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to all branches)


PART – A (10 x 2 = 20 marks)


1. Enumerate the structural and functional elements of ecosystem.

2. Define sustainable development.

3. List any two environmental stresses on the biology of water and soil.

4. Mention any two environmental impacts of development projects in your discipline.

5. Define hazardous wastes.

6. List any two air pollutants and their effects on human beings from automobile emission.

7. State the objectives of treatment of waste water.

8. Enumerate the waste minimization technique.

9. Mention some of the economic instruments in Environmental Management.

10. List any four pollution control acts.

PART – B (5 x 16 = 80 marks)


11. Discuss on the components and inter – relationship between the components of environment. (8)

12. (a) Explain the sources, characteristics and effects of air pollution. (16)

OR

(b) Discuss the stress on water bodies owing to the impacts of anthropogenic activities. (16)

13. (a) Explain the environmental issues related to the municipal solid waste management. (16)

OR

(b) (i) What is the significance of ozone layer depletion and global warming? (8)

(ii) What are the pollutants that are responsible and control measures? (8)

14. (a) Discuss the principles of physic – chemical waste water treatment with the help of a

flow diagram. (16)

OR

(b) (i) Discuss on the waste minimization techniques. (8)

(ii) Explain the biological treatment methods with the help of a neat sketch. (8)

15. (a) Explain the steps involved in environmental impact assessment with the help of a flow

sheet. (16)

OR

(b) (i) Discuss the role of non – government organizations in environmental management. (8)

(ii) Discuss any four international conventions. (8)

____________


SEVENTH SEMESTER

CE 071 – PRINCIPLES OF ENVIRONMENTAL SCIENCE AND ENGG.

(Common to ALL branches)


PART – A (10 x 2 = 20 marks)


1. Distinguish between natural and anthropogenic sources of pollution. Give examples.

2. What is meant by bio geo chemical cycle?

3. Distinguish between stream standards and effluent standards.

4. What is meant by green house effect?

5. List out the ill effects due to ozone layer depletion.

6. What is meant by entrophication?

7. Distinguish between biological treatment of waste water and chemical treatment of waste

water.

8. Explain the different phases in biological growth showing cell growth verses time.

9. What is meant by green productivity?

10. What is meant by EIA and EMS?

PART – B (5 x 16 = 80 marks)


11. (i) Discuss the primary, secondary and tertiary treatment of domestic waste water in detail.

Indicate treatment of domestic wastewater in detail. Indicate the individual units and

their processes highlighting their roles in domestic waste treatment. (10)

(ii) Explain how in an industry, by resorting to process change and equipment modification

leads to minimization of waste. (6)

12. (a) (i) What is meant by ecosystem? Discuss in detail the structural and functional attributes

of ecosystem. (10)

(ii) What are fossil fuels? In what way they are significantly contributing to

environmental degradation? Suggest suitable remedy. (6)

OR

(b) (i) ‘Water is an universal solvent’ – comment whether this property of water a boon or a

bane. (8)

(ii) The water resources are dwindling – suggest a model for sustaining the water

resources. (8)

13. (a) (i) Discuss the stress developed on land due to the untreated effluent discharge. (8)

(ii) What are the ill effects caused due to over extraction of ground water? (8)

OR

(b) (i) Discuss the impacts caused by the effluent discharge on to natural water bodies like

rivers or lakes. (8)

(ii) Explain how environmental impact assessment can be used as a tool for industrial

project development. (8)

14. (a) What is meant by solid waste? Suggest a method for segregation of waste at source

itself? Suggest suitable method for treatment and disposal of solid waste. (3+4+9)

OR

(b) (i) How are air pollution classified based on the mode of emission. (2)

(ii) What are the control methods adopted in control of pollutants like SPM, SOx and

NOx ? (8+8)

15. (a) Discuss the salient features of any four Indian Environmental protection Acts, and the

general powers of the Government of India under these acts. (8+8)

OR

(b) (i) Write short notes on UNEP and its role in environmental protection. (10)

(ii) What is meant by Green bench? What is its role? (6)

____________


THIRD SEMESTER


(Common to all branches (EXCEPT Bio-medical Engg, Computer Science and Engg, Electronics

and Communication Engg/Information Technology and Petroleum Engg) and common to

B.E. (Part-Time) Second Semester – Regulation 2005)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. Explain endangered species.

2. What do you mean by environmental impact?

3. Explain soil leaching.

4. What is acid precipitation?

5. Explain overgrazing.

6. What is desertification?

7. Define photochemical smog.

8. Define population equilibrium.

9. What is water logging?

10. What are the types of solid wastes?

PART – B (5 x 16 = 80 marks)


11. (a) (i) What is deforestation and explain its impact on the environment? (6)

(ii) Write briefly on the Hydrologic cycle. (5)

(iii) Discuss briefly on the consequences of overdrawing of ground water. (5)

OR

(b) (i) Discuss the development of modern agriculture and its effect. (8)

(ii) Write a note on solar production of electricity. (4)

(iii) Explain the methods of harnessing tidal power. (4)

12. (a) (i) State the four components of ecosystem. (ii) Discuss energy flow in ecosystem.

(iii) Write briefly on types of food chain. (iv) Explain ecological pyramids. (4x4=16)

OR

(b) (i) Discuss the four kinds of diversity.

(ii) Write a note on measuring Biodiversity.

(iii) Why Biodiversity is rich in the tropics?

(iv) What are the causes for loss of Biodiversity? (4x4=16)

13. (a) (i) Discuss the major air pollutants and their impact. (8)

(ii) Explain the various methods of controlling air pollution. (8)

OR

(b) (i) Discuss briefly the disposal of municipal solid waste. (6)

(ii) What are the sources of radioactive pollution? (4)

(iii) What is thermal pollution and explain its effects. (6)

14. (a) (i) What is sustainable development and explain its concepts? (4)

(ii) Discuss the agenda for sustainable development. (8)

(iii) What are the sources of green house gases in atmosphere? (4)

OR

(b) (i) Write a note on watershed management. (4)

(ii) Discuss briefly on Environment (protection) act 1986. (4)

(iii) Write briefly on Bhopal disaster and Chernobyl disaster. (8)

15. (a) (i) What is population dispersion? Explain. (4)

(ii) Discuss the reason for the population explosion. (4)

(iii) Explain the environmental and social impacts of growing population. (8)

OR

(b) (i) Discuss the factors influencing family size. (8)

(ii) Write a note on the various methods of family planning. (4)

(iii) What is AIDS? How to prevent it? (4)

____________


SECOND SEMESTER


(Common to Bio-medical Engg, CSE, ECE , Information Technology and common to

B.E. (Part-Time) First Semester – Regulation 2005)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. What is food chain?

2. Define environmental impact statement.

3. Explain ecosystem management.

4. What is soil fertility?

5. Explain ecological succession.

6. What is sustainable forest management?

7. Explain EI Nino.

8. List green house gases.

9. Define population equation.

10. What is total fertility rate?

PART – B (5 x 16 = 80 marks)


11. (a) (i) Write a note on energy conservation. (6)

(ii) Compare nuclear power with coal power. (6)

(iii) What is solar space heating? Explain. (4)

OR

(b) (i) What are the ecological, social problems involved in hydroelectric dams? (6)

(ii) Discuss briefly biomass energy. (10)

12. (a) Discuss the biogeochemical cycles in brief. (16)

OR

(b) (i) What is the biodiversity? What are the reasons for decline for biodiversity? (10)

(ii) Write short notes on: (1) Producers (2) Consumers (3) Decomposers (3x2=6)

13. (a) Discuss the various methods of removal of particulate matter from gases. (16)

OR

(b) Discuss the primary and secondary treatment of waste water. (16)

14. (a) (i) Explain the impact of aerosols and green house gases on the climate changes. (6)

(ii) What are the impacts of increased exposure to UV? (5)

(iii) What are the consequences of overdrawing surface water and ground water? (5)

OR

(b) (i) Briefly write about any two nuclear accidents. (6)

(ii) Write a note on water shed management through public participation. (4)

(iii) Briefly write about the concept of sustainable development. (6)

15. (a) (i) Write briefly on

(1) Population momentum

(2) Population profile

(3) Age structure (3x2=6)

(ii) Discuss the growth of population in developed and developing countries. (10)

OR

(b) (i) How family planning programmes can be successfully implemented? (6)

(ii) Discuss on the steps taken in India to prevent AIDS. (6)

(iii) Discuss the Factors Influencing the family size. (4)

____________

B.E./B.Tech. DEGREE EXAMINATION – MAY/JUNE 2006.

SECOND SEMESTER


(Common to Bio-medical Engg, CSE, ECE and Information Technology and and common to

B.E. (Part-Time) Regulation 2005 First Semester Civil, EEE, ECE and CSE)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. Write any two functions of forests.

2. What are the advantages in conjuctive use of water?

3. What are the classifications of biotic components of ecosystems?

4. What is food chain and food web?

5. Write any four major water pollutants.

6. Write briefly how human activities can introduce thermal pollution in to streams.

7. How CFC’s are accumulated in atmosphere?

8. Define hazardous waste.

9. What are the causes of deforestation?

10. List the problems of population growth.

PART – B (5 x 16 = 80 marks)


11. (a) (i) Briefly discuss the structural and functional components of an ecosystem. (8)

(ii) Explain the following: (1) Forest ecosystem (2) Ecological succession (2x4=8)

12. (a) Explain the following:

(i) Over utilization of surface and ground water. (8)

(ii) Adverse effects of agricultural practices away from the farm. (8)

OR

(b) Discuss the different types of energy sources. (16)

13. (a) (i) Briefly explain the conservation of biodiversity. (8)

(ii) Explain: The grass land ecosystem. (8)

OR

(b) Write short notes on the following:

(i) Energy flow in ecosystem. (6)

(ii) Pond ecosystem (5)

(iii) Threats to biodiversity. (5)

14. (a) (i) Explain the effect of CO, SO2, Hydrocarbons and Chromium on human beings. (8)

(ii) Explain the effects of nuclear and radiation pollution. (8)

OR

(b) Discuss the causes and effects of the following:

(i) Global warming (8)

(ii) Acid rain (8)

15. (a) (i) Discuss the objectives for prevention of hazardous wastes. (8)

(ii) Write a note on integrated wasteland development programme. (8)

OR

(b) Write notes on the following in relation to human population and environment.

(i) Women and Child welfare. (4)

(ii) Human rights. (6)

(iii) Value Education (6)

____________


THIRD SEMESTER


(Common to all branches EXCEPT Bio-medical Engg, CSE and Information Technology and

First Semester (Part – Time B.E. Civil, EEE, ECE and CSE - Regulation 2005))

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. Define sustainable forestry.

2. What is geothermal energy?

3. Explain Biosphere.

4. Define biodiversity.

5. Explain threatened and endangered species.

6. Give some examples of green house gases.

7. Define thermal pollution.

8. Explain the term sustainable development.

9. What is acid deposition?

10. Define population explosion.

PART – B (5 x 16 = 80 marks)


11. (a) (i) Discuss the ill effects of deforestation. (6)

(ii) Explain briefly the various methods of harvesting solar energy. (8)

(iii) Write a note on tidal power. (2)

12. (a) (i) Explain food chain and food web. (4)

(ii) Explain briefly the structure of atmosphere. (6)

(iii) Write a note on Carbon cycle. (6)

OR

(b) (i) Explain ecosystem. (4)

(ii) Discuss the components of ecosystem. (8).

(iii) Briefly explain the energy flow through ecosystem. (4)

13. (a) (i) Explain the methods of disposal of municipal solid waste. (8)

(ii) Write a note on disposal of radioactive wastes. (4)

(iii) Compare the nuclear power with coal power. (4)

OR

(b) (i) What are the causes of soil erosion and the methods of preventing it? (6)

(ii) Discuss the various aspects of prevention and control of noise. (6)

(iii) Write briefly the harmful effects of air pollution. (4)

14. (a) (i) Discuss the agenda for sustainable development. (8)

(ii) Write in detail about global warming. (8)

OR

(b) (i) Explain the mechanism of ozone layer depletion. (6)

(ii) Write briefly on the community participation in environment management

programmes. (4)

(iii) Discuss briefly on the Indian Environmental Acts. (6)

15. (a) (i) Discuss briefly on the reasons for the population explosion. (6)

(ii) Discuss the environmental and social impacts of growing population. (6)

(iii) Write briefly on the effect of increasing affluence on environment. (4)

OR

(b) (i) Write briefly on implementation of family planning programme. (6)

(ii) Write a note on AIDS in developing countries. (4)

(iii) Discuss the factors influencing the family size. (6)

____________


B.E./B.Tech. DEGREE EXAMINATION: DECEMBER 2009.

REGULATIONS: 2008

THIRD SEMESTER

080100016 – ENVIRONMENTAL SCIENCE & ENGINEERING

(COMMON TO CIVIL/CSE/IT)

Time: 3 Hours Max. Marks: 100

PART – A (20 x 2 = 40 marks)


1. What is ecosystem?

2. What are autotrophs and heterotrohs? Give examples.

3. Define ecological succession and mention its types.

4. What are the two important bio-diversity hot spots in India?

5. What are the causes of air pollution?

6. Define hazardous waste?

7. What is eutrophication?

8. What are the harmful effects of landslides?

9. Define the term deforestation.

10. Write short note on mineral resources of India.

11. What is geothermal energy?

12. What is meant by water logging?

13. Define the term sustainable development.

14. What is Tsunami?

15. Write a note on CFC.

16. What are the objectives of environmental impact assessement?

17. Define immigration and emigration.

18. What are the objectives of public awareness?

19. Define population density.

20. State the role of information technology in environment.

PART – B (5 x 12 = 60 marks)


21. (a) Briefly discuss the structure and functional components of an ecosystem. (6)

(b) Write notes on bio – geographical classification of India. (6)

22. (a) What is the information that can be obtained from different types of ecological pyramids? (6)

(b) Explain any one of the strategy adopted to conserve biodiversity. (6)

23. (a) Discuss the causes and effects of the following:

i) Global warming ii) Acid rain (2x3=6)

(b) What are the sources of noise pollution? (6)

24. (a) Describe the phenomenon of green houe effect. What are its effects? (6)

(b) What is thermal pollution? Explain its sources, effects and control measures. (6)

25. (a) What are the major causes of deforestation? Discuss its consequences. (6)

(b) What are the reasons for decline in soil productivity? (6)

26. (a) What is the role of an individual in the conservation of natural resources? (6)

(b) How is wind energy used for the generation of electric power? (6)

27. (a) How is ozone formed? Write the causes and effects of ozone depletion. (6)

(b) Discuss briefly on Environmental Protection Act. (6)

28. (a) Narrate briefly on the transmission of HIV and how it can be prevented. (6)

(b) Population explosion affects the environment seriously. Discuss it. (6)

_____________


B.E./B.Tech. DEGREE EXAMINATION: DECEMBER 2009.

REGULATIONS: 2008

THIRD SEMESTER


(COMMON TO EEE/EIE/ICE/BT/FT/TT/TC/CHEMICAL ENGG)


PART – A (20 x 2 = 40 marks)


1. List out the effects of over – utilization of water.

2. What are critical and strategic minerals?

3. Define renewable and non – renewable energy resources.

4. Write the demerits of solar energy.

5. What do you mean by ‘Ecological Succession’.

6. Define food chain and food web.

7. List out the Consumptive values of bio – diversity.

8. What are endangered species? Give one example.

9. Define Noise pollution.

10. Give any four major soil pollutants.

11. List out the methods which used for control Thermal Pollution.

12. Write any four control measures of nuclear hazard.

13. List out the major objectives of rain water harvesting.

14. What are the important causes of climate change?

15. Give some suggestions for waste land reclamation.

16. State the important features of Forest conservation Act.

17. Define immigration and emigration.

18. What is population density?

19. What are the causes of population explosion?

20. Mention some ill effects of HIV/AIDS.

PART – B (5 x 12 = 60 marks)


21. (a) Explain the causes, consequences and control measures of deforestation. (6)

(b) Write short notes on Wind energy. (6)

22. (a) Discuss the environmental impacts of modern agriculture. (6)

(b) Briefly discuss the various land conservation practices. (6)

23. (a) Give short notes on forest ecosystem. (6)

(b) List out the various threats to biodiversity. (6)

24. (a) Briefly discuss about the Endemic species. (6)

(b) Write short notes on various In – situ conservation methods. (6)

25. (a) Explain the sources, causes and control measures of water pollution. (6)

(b) Discuss the various steps involved in solid waste management. (6)

26. (a) Write short notes on ozone layer depletion. (6)

(b) Briefly explain about wild life preservation act. (6)

27. (a) Explain the sources, causes and control measures of Acid rain. (6)

(b) Discuss the causes and consequences of urbanisation. (6)

28. (a) Explain the role of information technology in environment and health. (6)

(b) Briefly explain about family planning programme. (6)

_____________

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2009

Fourth Semester

Computer Science and Engineering

CY – 1201 ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to Electronics &Communication Engg, Biomedical Engg, Information Tech)


PART A – (20 x 2 = 40 marks)


1. What is food chain?

2. State any two problems caused by the construction of Dam.

3. Explain endangered species.

4. Write any two functions of forests.

5. What is acid precipitation?

6. Explain biosphere.


8. Name the four ecosystems.

9. Enumerate the human activities which destroy the biodiversity.

10. What is desertification?

11. Write any four major water pollutants?

12. Give some examples of green house gases.

13. Explain the term sustainable development.


15. What are the causes of deforestation?

16. What is meant by e – waste?

17. List the problems of population growth.

18. Define population explosion.

19. State the role of information technology in Environment.

20. What is total fertility rate?

PART B – (5 x 12 = 60 marks)


21. (a) Explain in detail the role of an individual in conservation of natural resources. (6)

(b) Discuss about Global warming. (6)

22. (a) How will you take care of Solid wastes generated in urban areas? (6)

(b) Explain Bhopal gas tragedy. (6)

23. (a) Write short notes on:

(i) Producers (ii) Consumers (iii) Decomposers (3 x 2 = 6)

(b) What is an ecosystem? Describe the structure and function of various components

of an ecosystem. (6)

24. (a) What is meant by Rain Water Harvesting? Why is it necessary now – a – days? (6)

(b) Discuss briefly on Environment (protection) act 1986. (6)

25. (a) Discuss the agenda for sustainable development. (6)

(b) What are the consequences of overdrawing surface water and ground water? (6)

26. (a) Discuss the threat faced by Indian Biodiversity. (6)

(b) Explain the strategy adopted to conserve biodiversity. (6)

27. (a) Explain the environmental and social impacts of growing population. (6)

(b) Write a note on the various methods of family planning. (6)

28. (a) Write briefly on

(i) Population momentum (ii) Population profile (iii) Age structure (3 x 2 = 6)

(b) Discuss the steps taken in India to prevent AIDS. (6)

_____________

B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2009

Third Semester

Civil Engineering

CY – 1201 ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to B.E./B.Tech. II semester Biomedical Engg./ECE/CSE and all branches of B.E./B.Tech.

III semester IT/FT/PE and B.Tech V semester FT and also common to Part time I semester

CSE/CE/EEE/ECE and II semester Mechanical)

(Regulation 2005)


PART A – (20 x 2 = 40 marks)


1. How would environmental awareness help to protect our environment?

2. What is aquifer? Mention its types.

3. Give flow chart of energy flow in an ecosystem.

4. Name any two extinct species of India.

5. What is green chemistry?

6. How does Tsunami occur?

7. List the advantages of watershed projects.

8. Write the salient feature of ‘Forest Conservation Act’1980.

9. What is meant by doubling time? What is the doubling time for India?

10. What are the objectives of family welfare program in India?

PART B – (5 x 12 = 60 marks)

11. (a) (i) Briefly explain the soil conservation practices adopted in India. (8)

(ii)Explain the environmental damage caused by mining activities. Illustrate one case study. (8)

OR

(b) Enumerate the following.

(i) Tidal power (ii) Geothermal energy (iii) Biomass energy (6 + 5 + 5)

12. (a) What is biodiversity? How is it classified? Explain the values of biodiversity. (16)

OR

(b) Write a note on the following.

(i) Ecological succession (ii) Phosphorus cycle (iii) Aquatic ecosystem. (6 + 4 + 6)

13. (a) (i) Discuss the causes, effects and control measures of any one of the following.

(1) Noise pollution (2) Air pollution (8)

(ii) How can you, as an individual, prevent environmental pollution? Why such an effort at

an individual level is important? (8)

OR

(b) What adverse effects can solid wastes cause? How can the solid waste be managed? (16)

14. (a) (i) Describe the various water conservation strategies. (8)

(ii) Enumerate on environmental ethics. (8)

OR

(b) (i) Population, consumerism and waste production are interrelated; Comment. (8)

(ii) Briefly explain the occurrence, effect and control measures of acid rain. (8)

15. (a) What are the major role of IT in environment and human health? (16)

OR

(b) (i) Give a brief account on various issues and measures of women and child welfare in

India. (8)

(ii) Write the origin, mode of transmission, symptom and control measures of AIDS. (8)

_____________


B.E./B.Tech. DEGREE EXAMINATION: MAY/JUNE 2010.

REGULATIONS: 2008

THIRD SEMESTER


(COMMON TO EEE/EIE/ICE/BT/FT/TT/TC/CHEMICAL ENGG)


PART – A (20 x 2 = 40 marks)


1. Where does the drought condition occur?

2. What are the impacts of dam construction on environment?

3. What are the consequences of salinity on soil?

4. What is meant by desertification?

5. Write the role of decomposers in ecosystem.

6. Give the causes for endangerment of species.

7. Define Estuary.

8. Why is biodiversity important?

9. Mention some steps to control noise pollution.

10. How an individual can contribute to prevention of pollution?

11. What are the risks associated nuclear power plants?

12. What are the causes for landslides?


14. What is the need for wasteland development?

15. Mention the role of green houses gases in climate change.

16. How rain-water harvesting is applicable in urban areas?

17. What are the reasons for declining birth rate?

18. Why is variation important within a population?

19. What are human rights?

20. Give the preventive measures for HIV/AIDS.

PART – B (5 x 12 = 60 marks)


21. (a) Write on the factors affecting water resources. (6)

(b) Classify the mineral resources and write its impacts on soil when over exploited. (6)

22. (a) Discuss on the World food problems. (8)

(b) Deduce the Ecological impacts of modern agriculture. (4)

23. Explain in detail about the structure and function of an ecosystem with neat sketch. (16)

24. (a) Write on the Values of biodiversity. (6)

(b) What are the Threats caused to biodiversity and how the threats can reduced? (6)

25. (a) Explain the various concepts of waste management. (6)

(b) Explain the methods of disposal of municipal solid wastes. (6)

26. Write on the causes, ecological effects and the control measures of thermal pollution. (12)

27. Discuss the norms of environmental acts including the preventive & control measures.(12)

28. Write in detail about the impact of population growth on environment. (12)

_____________


B.E./B.Tech. DEGREE EXAMINATION: MAY/JUNE 2010.

REGULATIONS: 2008

THIRD SEMESTER


(COMMON TO CIVIL/CSE/IT)


PART – A (20 x 2 = 40 marks)


1. What is ecological succession?

2. What is biodiversity?

3. What are the drawbacks of over exploitation of forest resources?

4. What are the different components of an ecosystem?

5. Mention any three noise pollution hazards.

6. What is marine pollution?


8. What is activated sludge?

9. State the environmental effects of extracting and using mineral resources.

10. Give any two major food problems common around the world.

11. Define food web.


13. What are the impacts due to ozone layer depletion?

14. What are the effects of acid rain?

15. List the consequences of global warming.

16. What is EPA?

17. What is population explosion?

18. State how environment and human health are related.

19. What are the disadvantages of population explosion?

20. List some family welfare programmes in India.

PART – B (5 x 12 = 60 marks)


21. (a) Describe the types, characteristics features, structure and function of aquatic

ecosystems. (6)

(b) Explain in brief about the value of biodiversity. (6)

22. (a) Discuss the various aspects of prevention and control of noise. (6)

(b) Briefly explain about noise pollution with suitable case studies. (6)

23. (a) Discuss in detail about water pollution treatment methodology. (8)

(b) Explain the various methods of controlling air pollution. (4)

24. (a) List the effects of deforestation. (4)

(b) List the environmental problems associated with chemical fertilizers and list the

advantages of organic fertilizers. (8)

25. Explain in brief (i) Urban waste management (ii) Hazardous waste management (6 + 6)

26. (a) Write a note on water shed management. (6)

(b) Brief any three environmental acts in India. (6)

27. (a) Explain the mechanism of ozone layer depletion. (6)

(b) Discuss the causes and effects of acid rain. (6)

28. (a) Write the challenges faced by poor women in India. What is their role in household?

How do environmental problems affect them? (8)

(b) Discuss the role of Information Technology in the protection of Environment and

human health. (4)

_____________


SECOND SEMESTER


(Common to IT/ECE/CSE of B.E./B.Tech. & to B.E. Part time I semester – Regulation 2005)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. Metals cannot be irrecoverably consumed but we tend to disperse them in diluted state all

over our planet. Discuss the statement.

2. As an individual how will you conserve water and land resource?

3. What is food web? Give example.


5. What are the waste minimization techniques?

6. Define decibel. Give the permissible noise levels in heavy machinery shop and hospital zone.


8. Write the reactions of CFC and ozone which results in ozone hole.

9. What do you mean by the carrying capacity of population?

10. List any four vector-borne diseases.

PART – B (5 x 16 = 80 marks)


11. (a) (i) What are the major causes of deforestation? Discuss its consequences (16)

OR

(b) (i) Modern practices of intensive agriculture contribute much to the deterioration of

agricultural soil. Discuss. (8)

(ii) Based on thermal characteristics, how is the atmosphere stratified? (8)

12. (a) (i) Enumerate the major causes of degeneration of biodiversity. (8)

(ii) Explain the different components of an ecosystem with the help of pond ecosystem. (8)

OR

(b) (i) Energy flow in an ecosystem obeys 1st and 2

nd laws of thermodynamics. Justify. (6)

(ii) Why conservation in parks, sanctuaries and nature reserves is considered inadequate

& the only sensible way is to conserve the entire ecosystem or habitats. Discuss.(10)

13. (a) (i) What is thermal pollution? Discuss the damages caused by heated effluents on

aquatic systems. Suggest control measures. (8)

(ii) Give an account of the action plan for cyclone management. (8)

OR

(b) (i) What are the major pollutants of atmosphere. Enumerate the sources and adverse

effects caused by these pollutants on the biological system. (10)

(ii) With a neat diagram explain the principle, working, advantages and disadvantages

of electrostatic precipitator and gravitational settling chamber. (6)

14. (a) Discuss the salient features of the following acts.

(i) Environment Protection Act, 1986. (8)

(ii) Air (Prevention and Pollution) Act, 1981. (8)

OR

(b) (i) Write short notes on Green house effect and its impacts on environment. (8)

(ii) Give an account of the issues and impacts of resettlement and rehabilitation. (8)

15. (a) (i) Discuss the role of information technology on environment. (10)

(ii) Write notes on water – borne diseases. (6)

OR

(b) (i) Discuss the factors influencing human population. (8)

(ii) Write notes on human rights. (8)

____________


THIRD SEMESTER


(Common to all branches (Except Bio-medical Engg/IT/FT and PE of B.E./B.Tech.) and

also to B.E. Part time II semester – Regulation 2005)

(Regulation 2004)


PART – A (10 x 2 = 20 marks)


1. Differentiate between deforestation and forest degradation.

2. Enumerate the desired qualities of an ideal pesticide.

3. How does a biome differs from an ecosystem?

4. Define Genetic diversity and species diversity.

5. Differentiate between recycling and reuse.

6. Give examples for primary and secondary air pollutants.


8. What is a Dobson unit?

9. What are the reasons behind the increased population growth in the less developed

nations compared with developed nations?

10. Differentiate between HIV and AIDS.

PART – B (5 x 16 = 80 marks)


11. (a) (i) What are the ecological benefits of forests? (8)

(ii) ‘Environmental damages caused by mining last long after the mine has closed’.

Explain. (8)

OR

(b) (i) Discuss the possible solutions to improve the acceptability of dam projects in Indian

conditions. (8)

(ii) Explain the adverse environmental impacts of modern agriculture. (8)

12. (a) (i) With a neat sketch explain the flow of energy through the various components of the

ecosystem. (Producers, consumers and decomposers) (8)

(ii) Explain how fat-soluble pollutants like DDT get biomagnified. (8)

OR

(b) (i) Discuss the concept of ecological pyramid. (8)

(ii) Explain the term hot spot in biodiversity. (8)

13. (a) (i) What is the significance of dissolved oxygen in rivers? Explain. (8)

(ii) What are the effects of oil pollution on the oceans? (8)

OR

(b) (i) With a flow diagram explain the activated sludge process for waste water

treatment.(8)

(ii) Explain the concept of source, path receiver in the control of noise pollution. (8)

14. (a) (i) Explain the mechanism of formation of acid rain. (8)

(ii) Discuss the phenomenon of global warming and the factors contributing to it. (8)

OR

(b) (i) What are the salient features of the following acts

(1) The Air (Prevention and control of pollution) Act, 1981. (4)

(2) The Environment (Protection) Act, 1986. (4)

(ii) Discuss the possible mechanism of stratospheric ozone depletion. (8)

15. (a) (i) Draw a typical population pyramid of a developing country and discuss how it is

likely to differ from that of a developed country. (8)

(ii) Define Human rights and discuss the salient features of the Universal declaration of

human rights by UN. (8)

OR

(b) (i) Outline the various family welfare plans in the post independent India. (8)

(ii) What are the modes of transmission of HIV and how it can be prevented? (8)

___________

Compiled By Dr. M. Manivannan. M.Sc., M.Phil., Ph.D., Asst Prof/Chemistry, CNCET.

Email: [email protected] Mobile: 97897 39587

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