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1. The diameter of the discharge pipe of a centrifugal pump is 15 cm and the...

1. The diameter of the discharge pipe of a centrifugal pump is 15 cm and the that of

the intake pipe is 20 cm The pressure gage connected to the discharge pipe at the

pump outlet reads 207 kPa, and the vacuum gage connected to the intake pipe at

the pump inlet reads 25 cm of mercury. If the pump discharge is 84.7 L/s and the

power needed to run the pump is 35 HP, what is the pump efficiency?


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