EXAMIANS
Cavitation in a centrifugal pump results from
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Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.
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Schedule number of a pipe, which is a measure of its wall thickness, is given by
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A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is
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Reciprocating pumps compared to centrifugal pumps
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While starting an axial flow pump, its delivery valve should be kept
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Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around
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Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg.
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Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition.
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The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation
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