Based on fan laws, how does the pressure change for fans with a fixed wheel diameter when the fan speed varies?

Hydraulic Machines MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Hydraulic Machinesmechanical-engineering-mcqs › hydraulic-machines
Published
23 Jan 2019
Last updated
28 May 2026

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Explanation

According to fan laws, for fans with a constant wheel diameter, the pressure varies proportionally to the square of the fan speed.

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