Civil Engineering - Water Supply Engineering
Exercise :: Water Supply Engineering - Section 2
| 16. |
If p is total internal pressure, d is diameter of pressure conduit and t is thickness of conduit, the Hoop's stress is |
Answer: Option C
Explanation:
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| 17. |
The force which develops in a pressure conduit supported on trestles, is |
| A. |
tension | | B. |
compression | | C. |
temperature stress | | D. |
flexural stress. |
Answer: Option D
Explanation:
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| 18. |
After cleaning a slow sand filter, the filtered water is not used for |
| A. |
6 hours to 12 hours | | B. |
12 hours to 18 hours | | C. |
18 hours to 24 hours | | D. |
24 hours to 36 hours | | E. |
48 hours. |
Answer: Option D
Explanation:
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| 19. |
A pressure conduit laid under ground, may not be subjected to |
| A. |
internal pressure of water | | B. |
pressure due to external load | | C. |
longitudinal temperature stress | | D. |
longitudinal stresses due to unbalanced pressure to bends | | E. |
none of these. |
Answer: Option C
Explanation:
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| 20. |
The period of cleaning of a slow sand filter, is usually |
| A. |
5 to 10 days | | B. |
two weeks to three weeks | | C. |
one month to three months | | D. |
three months to six months | | E. |
one year. |
Answer: Option C
Explanation:
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