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- Question
An ideal sand for filters should be
Options- A. free from dirt and other impurities
- B. uniform in nature and size
- C. hard and resistant
- D. all the above.
- Correct Answer
- all the above.
- 1. Pressure relief valves are provided in water mains
Options- A. to reduce the pressure
- B. at low points
- C. upstream of sluice
- D. all the above. Discuss
- 2. The head against which the motor works for lifting water, is
Options- A. maximum depth of water table below ground level
- B. maximum depression head
- C. velocity head
- D. frictional losses in the delivery pipe
- E. all the above. Discuss
- 3. Gravity conduits are generally in the form of
Options- A. canals
- B. flumes
- C. aqueduct
- D. tunnels
- E. all the above. Discuss
- 4. To remove very fine suspended particles from water, the method adopted is
Options- A. screening
- B. sedimentation
- C. boiling
- D. filtration. Discuss
- 5. Pick up the correct statement from the following :
Options- A. The water level in a still well, represents the ground water table level
- B. The difference between water table level and the water level in a well after pumping, is called depression head
- C. The surface of water table surrounding a well during pumping, forms a cone of depression
- D. The distance from the centre of the well up to the place where level of water table is not affected, is called radius of influence
- E. All the above. Discuss
- 6. The average domestic consumption under normal conditions in an Indian city per day per person, is
Options- A. 105 litres
- B. 115 litres
- C. 125 litres
- D. 135 litres
- E. 150 litres. Discuss
- 7. When gravity and pumping systems of water distribution are adopted, the type of distribution reservoir, is
Options- A. elevated tank
- B. ground source reservoir
- C. intz tank
- D. stand pipe. Discuss
- 8. For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula
Options- A. D = 0.22 Q
- B. D = 1.22 Q
- C. D = 2.22 Q
- D. D = 3.22 Q
- E. D = 1.33 Q. Discuss
- 9. The valve fitted closely in a recess against an opening in a pipe, is generally
Options- A. wedge shaped circular disc
- B. spherical disc
- C. parallelopiped disc
- D. conical shaped circular disc. Discuss
- 10. For the same draw down in two observations wells at distances r1 and r2, the times after start of pumping are t1 and t2 hours respectively. The relation which holds good is
Options- A.
- B.
- C.
- D.
- E. none of these. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: filtration.
Correct Answer: All the above.
Correct Answer: 135 litres
Correct Answer: elevated tank
Correct Answer: D = 1.22 Q
Correct Answer: wedge shaped circular disc
Correct Answer:
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