Mechanical efficiency of a centrifugal pump is the ratio of energy available at

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Question
Mechanical efficiency of a centrifugal pump is the ratio of
Options
A. energy available at the impeller to the energy supplied to the pump by the prime mover
B. actual workdone by the pump to the energy supplied to the pump by the prime mover
C. energy supplied to the pump to the energy available at the impeller
D. manometric head to the energy supplied by the impeller per kN of water

Correct Answer

energy available at the impeller to the energy supplied to the pump by the prime mover

Hydraulic Machines problems

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5. Which of the following statement is wrong?
Options
A. The reaction turbines are used for low head and high discharge.
B. The angle of taper on draft tube is less than 8�.
C. An impulse turbine is generally fitted slightly above the tail race.
D. A Francis turbine is an impulse turbine.

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