Discussion
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- Question
The least thickness of class B cast iron (spun) pipe, is
Options- A. 7.2 mm
- B. 7.9 mm
- C. 8.6 mm
- D. 10 mm.
- Correct Answer
- 8.6 mm
- 1. The population growth curve is
Options- A. S-shaped curve
- B. parabolic curve
- C. circular curve
- D. straight line
- E. none of these. Discuss
- 2. 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
- 3. 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
- 4. 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
- 5. 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
- 6. The transitional middle portion of a logistic curve follows
Options- A. a geometric growth
- B. a logarithmic growth
- C. a first over curve
- D. a constant rate. Discuss
- 7. Most satisfactory formula for an estimate of fire demand Q for a city of population P in thousands for Indian conditions, is
Options- A.
- B. Q = 1640 P (1 - 0.01 P)
- C. Q = 3180 P
- D. none of these. Discuss
- 8. Water supply system includes
Options- A. digging a well for water
- B. construction of dams
- C. construction of canals
- D. entire arrangement from source to distribution. Discuss
- 9. Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be
Options- A. nil
- B. 5
- C. 10
- D. 15
- E. 20 Discuss
- 10. Turbidity of raw water is a measure of
Options- A. suspended solids
- B. acidity of water
- C. B.O.D.
- D. none of these. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: S-shaped curve
Correct Answer: all the above.
Correct Answer: 35 years.
Correct Answer: all the above.
Correct Answer: pressure relief valves
Correct Answer: a constant rate.
Correct Answer: Q = 3180 P
Correct Answer: entire arrangement from source to distribution.
Correct Answer: nil
Correct Answer: suspended solids
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