Civil Engineering - UPSC Civil Service Exam Questions - Discussion

1. 

Water is to be pumped at the rate of 0.025 m3/s from a 4 m deep ground level tank to an overhead tank. The difference in levels of the full tank levels of these tanks is 16 m. What is the approximate power required for operating a 65% efficient centrifugal pump ?

[A]. 7.5 kW
[B]. 6.0 kW
[C]. 3.9 kW
[D]. 3.2 kW

Answer: Option C

Explanation:

No answer description available for this question.

Chhaya said: (Jun 1, 2017)  
Here, p= QH * 9.81= 3.9 but divide by 0.65 Efficiency. So, the answer is 6kw.

Umesh H A said: (Sep 11, 2018)  
Answer is A

Chiri said: (Oct 19, 2018)  
Yes, the correct answer is A.

Priyanka said: (Jan 15, 2021)  
P= QHpg/100n.
P=6.0kw.
B is correct.

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