Civil Engineering - Water Supply Engineering
Exercise :: Water Supply Engineering - Section 2
6. |
Percussion drilling is unsuitable in |
A. |
unconsolidated sand | B. |
unconsolidated gravel | C. |
quick sand | D. |
consolidated rocks. |
Answer: Option D
Explanation:
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7. |
Disinfection of water with ozone is not good because |
A. |
it vanishes before water reaches the consumers | B. |
it removes the colour, taste and odour from water as bacterias | C. |
it adds taste to the water | D. |
it is more efficient than chlorine in killing bacterias | E. |
none of these. |
Answer: Option D
Explanation:
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8. |
An earth formation which, although porous and capable of absoring water does not provide an appreciable supply to wells, is known as |
A. |
acquifer | B. |
aquiclude | C. |
aquifuge | D. |
none of these. |
Answer: Option B
Explanation:
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9. |
Mathamoglobinemia, or blue baby disease is caused due to |
A. |
chlorides | B. |
nitrites | C. |
nitrates | D. |
sulphides. |
Answer: Option C
Explanation:
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10. |
The main process to purify water by filtration, is |
A. |
mechanical straining | B. |
flocculation and sedimentation | C. |
biological metabolism | D. |
electronic change | E. |
all the above. |
Answer: Option E
Explanation:
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