CY1201 ENVIRONMENTAL SCIENCE AND ENGINEERING question papers Previous Year Anna university question papers Download

B.E/B.Tech DEGREE EXAMINATION Nov/Dec 2007
Third semester
Computer Science and Engineering
CY 1201 -ENVIRONMENTAL SCIENCE AND ENGINEERING
(Regulation 2004)
Time: 3 hours                                                    Maximum marks: 100
Answer ALL questions
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 eco system?

4. What is meant by genetic diversity?

5. What is meant by genetic diversity?Give examples for primary and secondary air pollutants

6. Define the term sustainable development.

7. What is a Dobson unit?

8.What are the reasons behind the increased population growth in the less developed nations compared with developed nations?

9.Differentiate between HIV and AIDS.

PART B (5 x 16 = 80)

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 eco system. (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) Describe 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 wastewater 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)


B.E/B.Tech DEGREE EXAMINATION Apr/May 2008

Third semester
                                  
Computer Science and Engineering

CY 1201 - ENVIRONMENTAL SCIENCE AND ENGINEERING

(Regulation 2004)

Time: 3 hours                                                            Maximum marks: 100
Answer ALL questions

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?

9. What is population explosion?

10. What are the major precautions to avoid AIDS?

PART B (5 x 16 = 80)

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 echo system. Give an account of the structure and function of an echo system. (8)

(ii) Explain the flow of energy through the atmosphere and its utilities in an echo system. (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
            (ii) Water Pollution                                                         (2 x 8 = 16)    
(or)
(b) What is earthquake? Enumerate its effects. What measures should be taken to mitigate their disaster?         

14. (a) Explain the following
            (i) Ozone depletion
            (ii) Global warming                                                         (2 x 8 = 16)
(or)
(b) Explain the following:
(i) Wildlife Protective Act.
(ii) Forest Preservative Act.                                                         (2 x 8 = 16)

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)

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