Civil Engineering - Waste Water Engineering - Discussion

10. 

The self-cleansing velocity of water flowing through pipe lines, is

[A]. 2 metres/sec
[B]. 1 metre/sec
[C]. 0.5 metre/sec
[D]. 0.25 metre/sec.

Answer: Option A

Explanation:

No answer description available for this question.

Tyson said: (May 4, 2017)  
I think 0.75m/sec should be the answer for this.

Sujith said: (Nov 23, 2017)  
Self cleansing velcity can be between 0.5 m/sec -2 m/sec, but as indian standard condition it is 0.75m/sec.

Mohit said: (Feb 22, 2018)  
Self-cleansing velocity can be between 0.75 to 0.9 m/sec.

Viru Kapoor said: (Mar 26, 2018)  
In sewer it is generally 0.7 to 0.9 m/sec.

But in case of pipe, it is slightly more and usually taken as 2 m/sec.

Orai said: (Jun 7, 2018)  
Yes, Right @Mohit.

Bhaskar said: (Jul 4, 2018)  
Sewer Material Limiting velocity in m/sec.

Vitrified tiles 4.5 - 5.5.
Cast iron sewer 3.5 - 4.5.
Cement concrete 2.5 - 3.0.
Stoneware sewer 3.0 - 4.5.
Brick lined sewer 1.5 - 2.5.

Priyanka Shah said: (Apr 23, 2019)  
Thanks @Viru Kapoor.

Akhila said: (Jun 19, 2019)  
Thanks @Viru Kapoor.

Naveed said: (Aug 3, 2019)  
Here it said that in pipes not in sewer so it has 2m/sec.

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