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The maximum number of impellers in a centrifugal well pump is _____________

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The maximum number of impellers in a centrifugal well pump is _____________

(a) 20

(b) 30

(c) 40

(d) 50

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This key question is from Well Pump in section Pumps and Pumping of Environmental Engineering

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Best answer
Right choice is (a) 20

The explanation: The maximum number of impellers in a centrifugal well pump is 20 and it depends on the head, mixed flow, propeller type with vanes and guide passages.

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