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Which of the following represents the correct order in terms of the maximum efficiency of the pump?

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in Environmental Engineering by (81.4k points)
Which of the following represents the correct order in terms of the maximum efficiency of the pump?

(a) Centrifugal > Airlift > Diaphragm

(b) Diaphragm > Airlift > Centrifugal

(c) Airlift > Centrifugal > Diaphragm

(d) Centrifugal > Diaphragm > Airlift

I had been asked this question in unit test.

The origin of the question is Inverted Siphon, Storm Regulator and Sewage Pumping topic in division Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

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Correct choice is (d) Centrifugal > Diaphragm > Airlift

The best explanation: The maximum efficiency of the centrifugal pump is 85%, while of Diaphragm and Airlift pumps are 30% and less than 25% respectively.

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