A centrifugal pump loses prime after starting. The reason of this trouble may be

For a specific centrifugal air blower operating at constant speed & capacity, the power requirement and pressure vary

Pick out the wrong statement about a streamline.

Hydraulic mean depth (Dm) for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum

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