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- Question
Chlorination of water does not remove
Options- A. ammonia content
- B. B.O.D.
- C. organic matter content
- D. dissolved oxygen.
- Correct Answer
- dissolved oxygen.
- 1. For a network of distribution pipes of a proposed township shown in the below figure, the layout of distribution system, is
Options- A. dead end system
- B. grid-iron system
- C. ring system
- D. radial system. Discuss
- 2. Water is distributed to consumers by gravitational system, in
Options- A. Dehradun
- B. Bombay
- C. Delhi
- D. Calcutta
- E. Both (a) and (b). Discuss
- 3. In centrifugal pump installation,
Options- A. pump is properly primed before starting
- B. the diameter of the pipe at inlet as well as at outlet, is kept smaller than the delivery pipe
- C. the foot valve fitted at the bottom end of the suction pipe, prevents the movement of water from the pump when it is stopped
- D. the motor may burn out if it is started with empty delivery pipe and with open gate valve
- E. all the above. Discuss
- 4. 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
- 5. 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
- 6. Pick up the incorrect statement from the following :
Options- A. The flow in strainer type wells is radial
- B. The flow in cavity type wells in spherical
- C. In strainer type wells, area of flow depends upon the length of the strainer pipe
- D. In cavity type wells, area of flow depends upon the size of the cavity
- E. None of these. Discuss
- 7. For the prediction of future population of a city, the factor to be considered, is
Options- A. births
- B. deaths
- C. migrants
- D. all the above. Discuss
- 8. Asbestos pipes are joined by means of
Options- A. flanged joint
- B. flexible joint
- C. dresser coupling joint
- D. simplex joint
- E. socket and spigot joint. Discuss
- 9. The dilution ratio at which the odour is hardly detectable is generally called threshold odour number and for public supplies it should not exceed
Options- A. 3
- B. 5
- C. 7
- D. 9
- E. 10 Discuss
- 10. Water may not contain much impurities if its source is
Options- A. reservoirs
- B. stream flowing in plains
- C. lakes in lower regions
- D. spring along hill slopes
- E. none of these. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: radial system.
Correct Answer: Both (a) and (b).
Correct Answer: all the above.
Correct Answer: 20 P.P.M.
Correct Answer: dead end system.
Correct Answer: In strainer type wells, area of flow depends upon the length of the strainer pipe
Correct Answer: all the above.
Correct Answer: simplex joint
Correct Answer: 3
Correct Answer: spring along hill slopes
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