Civil Engineering - Waste Water Engineering - Discussion

5. 

Maximum permissible velocity 1.5 m/sec, is adopted in drains

[A]. with beds of rocks and gravels
[B]. lined with stones
[C]. both (a) and (b)
[D]. neither (a) nor (b).

Answer: Option C

Explanation:

No answer description available for this question.

Anirban Roy said: (Nov 14, 2020)  
No, This is absolutely incorrect as for stone sewers the max allowable velocity is 3 to 4m/s.

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