Discussion
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- Question
Pick up the correct statement from the following :
Options- A. At a particular speed of operation, the head produced decreases with the increase of discharge
- B. At zero discharge, discharge valve remaining closed, the head developed is maximum which is known as shut-off head
- C. At a particular speed the discharge at which efficiency of a pump is maximum, is known as normal discharge
- D. The brake horse power required from the primemover to drive the pump, increases with the increase of discharge
- E. all the above.
- Correct Answer
- all the above.
- 1. Aqueducts are generally designed
Options- A. circular
- B. rectangular
- C. horse shoe section
- D. all the above. Discuss
- 2. The nitrate concentration in domestic water supplies, is generally limited to
Options- A. 10 ppm
- B. 15 ppm
- C. 25 ppm
- D. 30 ppm
- E. 45 ppm. Discuss
- 3. Yield of a drainage basin is :
Options- A. run off of the area expressed as instantaneous rate
- B. average run off over a short period
- C. total volume of water flowing annually
- D. all the above. Discuss
- 4. The ratio of discharge and plan area of a continuous flow type settling tank, is known
Options- A. surface loading
- B. overflow
- C. overflow rate
- D. all the above. Discuss
- 5. The chlorine supply cylinders are generally kept at 38°C to 40°C to prevent
Options- A. conversion into crystals
- B. it from burning
- C. it from explosion
- D. none of these. Discuss
- 6. The order of existence of three portions of water in a reservoir from the bottom to top is
Options- A. useful storage + surcharge storage + dead storage
- B. useful storage + dead storage + surcharge storage
- C. dead storage + useful storage + surcharge storage
- D. surcharge storage + useful storage + dead storage
- E. none of these. Discuss
- 7. The approximate diameter of a water mains for supplying 7.2 mld with a velocity 1.2 m/sec, is
Options- A. 24 cm
- B. 26 cm
- C. 28 cm
- D. 30 cm
- E. 32 cm. Discuss
- 8. If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is
Options- A.
- B.
- C.
- D.
- E. none of these. Discuss
- 9. Hardness of water can be removed by boiling if it is due to
Options- A. calcium bicarbonates
- B. calcium sulphates
- C. calcium chloride
- D. calcium nitrates. Discuss
- 10. To control the growth of algae in reservoirs, the compound which is used, is
Options- A. bleaching powder
- B. copper sulphate
- C. lime solution
- D. alum solution
- E. all the above. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: all the above.
Correct Answer: 45 ppm.
Correct Answer: total volume of water flowing annually
Correct Answer: all the above.
Correct Answer: conversion into crystals
Correct Answer: dead storage + useful storage + surcharge storage
Correct Answer: 30 cm
Correct Answer:
Correct Answer: calcium bicarbonates
Correct Answer: copper sulphate
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