Mechanical Engineering - Hydraulic Machines - Discussion

10. 

Overall efficiency of a centrifugal pump is the ratio of

[A]. energy available at the impeller to the energy supplied to the pump by the prime mover
[B]. actual workdone by the pump to the energy supplied to the pump by the prime mover
[C]. energy supplied to the pump to the energy available at the impeller
[D]. manometric head to the energy supplied by the impeller per kN of water

Answer: Option B

Explanation:

No answer description available for this question.

Kaushal said: (Dec 15, 2016)  
Option c is also correct. Reference Khurmi Gupta civil engineering objective chapter 4.

Ritu said: (Dec 31, 2017)  
I think Option C is the correct answer.

Vishal said: (Apr 17, 2018)  
Option C is correct.

Ranjeet said: (Sep 30, 2018)  
Option A is the correct answer.

Dhananjay Bhile said: (Jan 24, 2019)  
Option C is correct.

Piyush Rawat said: (Aug 2, 2019)  
B is absolutely correct. Overall effciency is the ratio of output power by the pump (or water power obtained at delivery) to the input power to the pump (shaft power).

Tilak Raj said: (May 5, 2020)  
I think C is the right answer according to pump work and its formula.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.