Civil Engineering - Waste Water Engineering - Discussion

32. 

For house drainage minimum gradient is

[A]. 1 in 60
[B]. 1 in 80
[C]. 1 in 10
[D]. 1 in 400

Answer: Option A

Explanation:

No answer description available for this question.

Roy said: (Oct 14, 2017)  
1 in 80 is the correct answer.

Avi said: (Nov 6, 2017)  
All above ground and below ground horizontal drainage pipes should be laid to an adequate gradient. Gradients from 1 in 40 to 1 in 110 will normally give adequate flow velocities. A gradient of 1 in 80 is suitable for commencing calculations for pipe schemes.

Masoom said: (Mar 12, 2019)  
1:80 this slope adequate for establishing self-cleaning velocity.

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