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- Question
Distribution mains of any water supply, is normally designed for its average daily requirement
Options- A. 100%
- B. 150%
- C. 200%
- D. 225%.
- Correct Answer
- 225%.
- 1. In distribution pipes, drain valves are provided at
Options- A. lower point
- B. higher point
- C. junction points
- D. any where. Discuss
- 2. The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level
Options- A. 1500 m
- B. 1505 m
- C. 1475 m
- D. 1485 m. Discuss
- 3. Pick up the correct statement from the following :
Options- A. Excess quantities of iron and manganese in water, cause discolouration of clothes
- B. Lead and barium salts have toxic effect
- C. Arsenic and selenium are poisonous to human health
- D. Higher copper content affects the lungs
- E. All the above. Discuss
- 4. Pick up the incorrect statement from the following. The underground sources of water, is from
Options- A. wells
- B. springs
- C. infiltration wells
- D. storage reservoirs
- E. none of these. Discuss
- 5. If V is total consumption of water in litres for a population of N individuals, per capita consumption or water allowance for the water supply Q, is given by
Options- A.
- B.
- C.
- D. none of these. Discuss
- 6. Corrosion of well pipes may not be reduced by
Options- A. reducing the draw down and the pumping rate
- B. reducing the flow velocity
- C. using thicker pipes
- D. using screens having larger area of openings
- E. none of these. Discuss
- 7. In pressure supply mains, water hammer pressure is reduced by providing
Options- A. sluice valves
- B. air valves
- C. pressure relief valves
- D. none of the these. Discuss
- 8. Manholes along the mains from the source to a city are provided at 500 m intervals in
Options- A. steel pipes
- B. R.C.C. pipes
- C. hume steel pipes
- D. all the above. Discuss
- 9. Average annual rainfall at any station is the average of annual rainfall over a period of
Options- A. 7 years
- B. 14 years
- C. 21 years
- D. 28 years
- E. 35 years. Discuss
- 10. Corrosion of a pipe
Options- A. reduces its life span
- B. reduces its carrying capacity
- C. adds colour to water
- D. adds odour to water
- E. all the above. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: lower point
Correct Answer: 1485 m.
Correct Answer: All the above.
Correct Answer: storage reservoirs
Correct Answer:
Correct Answer: using screens having larger area of openings
Correct Answer: pressure relief valves
Correct Answer: all the above.
Correct Answer: 35 years.
Correct Answer: all the above.
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