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- Question
In distribution pipes, air valves are provided at
Options- A. lower points
- B. junction points
- C. higher points
- D. any where.
- Correct Answer
- higher points
- 1. The total domestic consumption in a city water supply, is assumed
Options- A. 20%
- B. 30%
- C. 40%
- D. 60%. Discuss
- 2. If average volume of sediment deposits is one-tenth million cubic metres per year in a reservoir of total capacity 10 million cubic metres, the dead storage will be filled up, in
Options- A. 10 years
- B. 15 years
- C. 20 years
- D. 25 years
- E. 50 years. Discuss
- 3. Ground water from artesian wells
Options- A. contains no suspended materials
- B. contains dissolved salts
- C. may be saltish and hard
- D. generally require lesser treatment
- E. all the above. Discuss
- 4. Normal values of overflow rate for sedimentation tanks using coagulants in litres/hr/m2 , generally range between
Options- A. 250 to 500
- B. 500 to 750
- C. 750 to 1000
- D. 1000 to 1250 Discuss
- 5. The maximum pressure which the pipe can withstand without any leakage during hydrostatic pressure test, is called
Options- A. Working pressure
- B. Design pressure
- C. Test pressure
- D. Hydrostatic pressure. Discuss
- 6. The maximum permissible chloride content in treated water of public water supplies should not exceed
Options- A. 50 P.P.M.
- B. 100 P.P.M.
- C. 150 P.P.M.
- D. 200 P.P.M.
- E. 250 P.P.M. Discuss
- 7. The bacterias which may survive with or without free oxygen, are called
Options- A. Aerobic bacterias
- B. Anaerobic bacterias
- C. Faculative bacteria's
- D. None of these. Discuss
- 8. The most important and widely used tube well in India, is
Options- A. strainer well
- B. cavity well
- C. slotted well
- D. perforated pipe well. Discuss
- 9. For a city developed haphazardly, the layout of distribution pipes preferred to, is
Options- A. ring system
- B. radial system
- C. grid iron system
- D. dead end system. Discuss
- 10. Maximum permissible colour for domestic water supplies, based on Cobalt scale, is
Options- A. 5 P.P.M.
- B. 10 P.P.M.
- C. 15 P.P.M.
- D. 20 P.P.M.
- E. 25 P.P.M. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: 60%.
Correct Answer: 25 years
Correct Answer: all the above.
Correct Answer: 1000 to 1250
Correct Answer: Test pressure
Correct Answer: 250 P.P.M.
Correct Answer: Faculative bacteria's
Correct Answer: strainer well
Correct Answer: dead end system.
Correct Answer: 20 P.P.M.
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