Question

The efficiency of the pump at half load is ____________

(a) 50%

(b) 70%

(c) 80%

(d) 100%

This question was posed to me during an interview.

I would like to ask this question from Selection of Pumping Units in section Pumps and Pumping of Environmental Engineering

Answer 1

The correct answer is (b) 70%

The explanation is: The efficiency of a pump depends on the amount of load. At half load, the efficiency of the pump is 70%.