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The output power of the centrifugal pump is proportional to the _________ of the speed.

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The output power of the centrifugal pump is proportional to the _________ of the speed.

(a) Square

(b) Cube

(c) Square-root

(d) Cube-root

This question was posed to me during an online exam.

This intriguing question originated from Solar Powered Pump Drives in division Solar and Battery Powered Drives of Electric Drives

1 Answer

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Best answer
Right choice is (b) Cube

The best explanation: The output power of the centrifugal pump is proportional to the cube of the speed. They require a small torque to start.

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