Chemical Engineering - Fluid Mechanics - Discussion

Discussion Forum : Fluid Mechanics - Section 1 (Q.No. 11)
11.
With increasing flow rate, the hydraulic efficiency of a centrifugal pump
monotonically decreases.
decreases and then increases.
remains constant.
increases and then decreases.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
29 comments Page 2 of 3.

Dharmendra kumar said:   4 years ago
Hydraulic efficiency = Q*H.

When Q increases and then H will decrease so here two opposite factor work together so practically it has seen that initially, hydraulic efficiency increase to a BEP and then decrease, so answer D is correct.

Anish said:   5 years ago
Yes, D is the right answer.

J.Marwat said:   5 years ago
From the hydraulic efficiency of a centrifugal pump, it is clear that with increase of velocity the hydraulic efficiency will be decreased.

Pankaj Gupta said:   5 years ago
The right Answer is D.

Aditi said:   5 years ago
Agree, the correct answer is D.

Krunal said:   1 decade ago
What is mean by monotonically?

Edwin said:   6 years ago
The correct Answer is option D.

Pratik said:   6 years ago
The answer should be D.

Aditya singh said:   6 years ago
The correct answer will be D.

Shiv said:   6 years ago
According to "operating characteristic curve", it is head which decreases monotonically. Efficiency first increases till peak point of it and then decreases. Power consumption is increased monotonically. So, the answer should be "D" in place of A.


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