Civil Engineering - Water Supply Engineering - Discussion

49. 

The yield of a rapid gravity filter as compared to that of slow sand filter, is

[A]. 10 times
[B]. 15 times
[C]. 20 times
[D]. 30 times
[E]. 35 times.

Answer: Option D

Explanation:

No answer description available for this question.

Shahin Vk said: (Apr 15, 2016)  
Slow sand filter -> 100 - 200 litre per hr per m2.

Rapid sand filter -> 3000 - 6000 litre per hr per m2.

Pressure filter -> 10000 - 15000 litre per hr per m2.

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