Q
For efficient working of a sewer, it must be ensured that _____________?
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A
A. Minimum velocity of 0.45 m/sec, is maintained at its minimum flow
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B
B. A maximum velocity of 0.90 m/sec, is maintained at its maximum flow
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C
C. Both a. and b.
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D
D. Neither a. nor b.
Correct Answer:
C. C. Both a. and b.
