CE 071 - PRINCIPLES OF ENVIRONMENTAL SCIENCE AND ENGINEERING: Seventh Semester, Civil Engineering Question Paper

Anna University, Chennai.

B.E / B.Tech. DEGREE EXAMINATION, MAY/JUNE 2007.

Seventh Semester

Civil Engineering

CE 071 - PRINCIPLES OF ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to all branches)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 x  2 = 20 marks)

1. List out the distinct atmospheric layers above the earth and their distance from the earth's surface.

2. Define food web. 

3. What is meant by photo chemical smog?

4. Differentiate between BOD and COD.

5. How does the use of fossil fuel affect the environment?

6. Give the important characteristics of solid waste.

7. List the sewage treatment units required in sequence for a municipal ( corporation.)

8. What is meant by salvaging of solid waste? State its advantages?

9. Define the term precautionary principle in Environmental Management.

10. Give any two prevention and control of pollution acts of India.

PART B  (5 x 16 = 80 marks)

11 . (a) Sketch and describe the components of environment and their interrelationship between them.                                       (16)

or

(b) (i) Describe the concept of ecological pyramids. (8)

(ii) Discuss the impacts of urbanization on environment. (8)

12. (a) Explain the various sources of soil pollution and describe their impact on soil. (16)

Or

(b) (i) Discuss the effects due to presence of suspended matter and inorganic chemicals in Water. (8)

(ii) Explain the pollution caused by oxides of Nitrogen in air. (8)

13. (a) Explain the various steps involved in solid waste management. (16)

Or

(b) (i) What are Bio-medical wastes? Discuss their importance. (8)

(ii) Explain the importance of biodiversity. (8)

14. (a) Justify the need for waste water treatment. Briefly outline the different steps involved in waste water treatment. (16)

Or

(b) (i) Explain the advantages of clean technology. (8) -

(ii) What are the benefits of pollution prevention? (8)

15. (a) (i) Justify the need of legislation for environmental protection. (8)

(ii) Write a note on polluter pays principle. (8)

Or

(b) State and discuss any four international conventions. (16)

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