Civil Engineering - Hydraulics - Discussion

22. 

For a long pipe, the head loss

[A]. at the entrance is ignored
[B]. at the outlet is ignored
[C]. at the entrance and outlet both are ignored
[D]. due to friction is ignored.

Answer: Option C

Explanation:

No answer description available for this question.

Aashish Rastogi said: (Dec 13, 2016)  
For a short pipe head loss due to friction is considered but for long pipe head loss due to friction is ignored.

Tyy said: (Apr 11, 2017)  
Frication considers in a long pipe.

Head loss at exit & entrance in short pipe.

Mangesh Bagde said: (Jun 20, 2018)  
Correct answers is D.

Loss due to friction is ignore.

R K Bansal said: (Jan 11, 2020)  
Option C is correct.

Since,

For a long pipe, minor losses are ignored and as we all know loss at the entrance, exit etc are minor losses.

The only major loss we consider is friction.

Harinder said: (Apr 13, 2020)  
Right @RK Bansal.

We cannot ignore major loss i.e. friction loss in a long pipe.

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