Civil Engineering - UPSC Civil Service Exam Questions - Discussion


What is the discharge corresponding to a critical depth of 1.20 m in a 3.0 m wide rectangular channel:

[A]. 4.12 m3/s
[B]. 4.94 m3/s
[C]. 8.24 m3/s
[D]. 12.35 m3/s

Answer: Option D


No answer description available for this question.

Umesh H A said: (Sep 9, 2018)  
Here, Yc (critical depth).

Yc = (Q^2/ B^2 * g)^(1/3).

Pankaj Kumar Yadav said: (Dec 4, 2019)  
Q = (Yc^3 x B^2x g)^1/3.
Q = 12.35 m^3/s.

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