Water Supply Engineering problems
- 1. Pick up the correct statement from the following :
Options- A. Head loss in smaller size pipes at equal velocities, is less
- B. Cost of pumping is less in smaller size pipes
- C. Cost of smaller pipes is comparatively more
- D. None of these. Discuss
Correct Answer: None of these.
- 2. Pick up the incorrect statement from the following. In take of water supply should
Options- A. be nearer to the treatment plant
- B. receive water from purer zone of the source
- C. be located downstream of waste water disposal point
- D. remain easily accessible during floods. Discuss
Correct Answer: be located downstream of waste water disposal point
- 3. Filtration of water is done to remove
Options- A. colour
- B. odour
- C. turbidity
- D. pathogenic bacteria
- E. all the above. Discuss
Correct Answer: turbidity
- 4. Permanent hardness of water can be removed by
Options- A. adding alum
- B. adding lime
- C. adding chlorine
- D. boiling
- E. zeolite process. Discuss
Correct Answer: zeolite process.
- 5. The U.C. (uniformity coefficient)
for the best filter media sand should be
Options- A. 2
- B. 3
- C. 4
- D. 5
- E. none of these. Discuss
Correct Answer: 2
- 6. Total flow in stream is known
Options- A. run off
- B. stream flow
- C. discharge
- D. all the above. Discuss
Correct Answer: all the above.
- 7. Alum is a
Options- A. coagulant
- B. flocculant
- C. catalyst
- D. disinfectant. Discuss
Correct Answer: coagulant
- 8. The requirement of water per capita per day, is
Options- A. 90 litres
- B. 150 litres
- C. 250 litres
- D. 400 litres. Discuss
Correct Answer: 90 litres
- 9. Generally, first portion of a logistic curve for the population growth of a developing city, represents the growth of
Options- A. increasing
- B. decreasing
- C. constant
- D. all the above. Discuss
Correct Answer: increasing
- 10. Pick up the correct statement from the following :
Options- A. Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the pipe
- B. Incrustation of the pipe reduces the discharge
- C. Acidic waters cause corrosion of the pipes
- D. Corrosion results due to excessive withdrawal of sand along with water
- E. All the above. Discuss
Correct Answer: All the above.
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