Civil Engineering - UPSC Civil Service Exam Questions - Discussion


If a sluice gate produces a change in the depth of water from 3.0 m to 0.6 m, then the force on the gate is about

[A]. 9.5 kN/m
[B]. 19.0 kN/m
[C]. 38.0 kN/m
[D]. 76.0 kN/m

Answer: Option C


No answer description available for this question.

Naveed said: (Dec 1, 2017)  
Option C is the correct Answer.

F/b = 1/2 ρg (h1-h2)3/(h1+h2) = 37.6 say 38.

Diya Gupta said: (Jun 4, 2018)  
Please explain it clearly.

Ankit said: (Jul 1, 2018)  
How to get this answer? Please explain.

Veronica Roy said: (Jul 5, 2018)  
Anyone can elaborate it please?

Sirajuddin said: (Jun 3, 2020)  
Answer is (b).

Siraj said: (Jun 3, 2020)  
Force per unit width = 4.905*(d1 - d2)^3/(d1+d2).

So, B is the correct answer.

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