Thursday, February 3, 2022

Anna University EN8492 Water Supply Engineering Nov Dec 2021 Question Paper

Anna University

Question Paper Code : 40572

B.E./B.Tech. DEGREE EXAMINATIONS, NOVEMBER/DECEMBER 2021.

Fourth/Fifth Semester

Civil Engineering

EN 8491 – WATER SUPPLY ENGINEERING

(Common to Environmental Engineering)

(Regulations 2017)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 x 2 = 20 marks)

1. What is meant by design period?

2. Compare and contrast between infiltration gallery and infiltration well.

3. State any two factors to be considered while selecting a suitable site for an intake if the source is a perennial river.

4. What is meant by economic diameter of a pumping main?

5. Gentle mixing is preferable in flocculator – Justify.

6. State the objectives of aeration process in water treatment.

7. Distinguish between ultrafiltraion and nanofiltration.

8. What is meant by adsorption?

9. What role does service reservoir play in water distribution system?

10. Mention any two software pertaining to design and analysis of a water distribution network.

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