Civil Engineering - Water Supply Engineering
Exercise :: Water Supply Engineering - Section 1
11. |
Most commonly used pump for lifting water in water supply mains, is |
A. |
axialflow pump | B. |
reciprocating pump | C. |
rotary type pump | D. |
centrifugal pumps | E. |
none of these. |
Answer: Option A
Explanation:
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12. |
Economic height of a dam is the height corresponding to which |
A. |
cost of the dam per unit of storage is minimum | B. |
amount of silting is less | C. |
cost of dam per unit storage is maximum | D. |
free board provided is least | E. |
none of these. |
Answer: Option A
Explanation:
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13. |
Distribution mains of any water supply, is normally designed for its average daily requirement |
Answer: Option D
Explanation:
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14. |
If pH value of water is |
A. |
7 water it is said to be neutral | B. |
less than 7 it is said to be acidic | C. |
more than 7 it is said to be alkaline | D. |
all the above. |
Answer: Option D
Explanation:
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15. |
In pressure supply mains, water hammer pressure is reduced by providing |
A. |
sluice valves | B. |
air valves | C. |
pressure relief valves | D. |
none of the these. |
Answer: Option C
Explanation:
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