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 3 of 3.

Ashish Patel said:   8 years ago
Right answer should be D. According to "operating characteristic curve" with increasing flow rate the hydraulic efficiecy is first increase and then decrease.

Md. Atoar Rahman said:   8 years ago
Yes, The answer should be option D.

Nipu said:   9 years ago
The answer should be option D.

Ccjayesh said:   10 years ago
For centrifugal pumps, the efficiency tends to increase with flow rate up to a point midway through the operating range (peak efficiency) and then declines as flow rates rise further.

Abhi said:   1 decade ago
Answer would be D. It's head which decreases monotonically with flow rate.

Chirag said:   1 decade ago
Pw = (Q x H) / 3960.

Where:

Q= Flow (gallons per minute-GPM).

H= Head (feet).

Ajit said:   1 decade ago
What is the formula of hydraulic efficiency?

Shan Rana said:   1 decade ago
In mathematics, a monotonic function (or monotone function) is a function between ordered sets that preserves the given order. This concept first arose in calculus, and was later generalized to the more abstract setting of order theory.

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


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