Civil Engineering - Water Supply Engineering - Discussion

23. 

A high velocity of wash water is required for

[A]. rapid gravity filter with strainers
[B]. rapid gravity filter without strainers
[C]. slow sand filter with strainers
[D]. slow sand filter without strainers
[E]. none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Pankaj said: (Sep 12, 2019)  
Please explain about strainers.

Mukund said: (Nov 10, 2020)  
Strainers is the holes for filtering the water.

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