A double acting reciprocating pump, running at 40 rpm is discharging 1.0 m 3 /min. The pump has a…

A double acting reciprocating pump, running at 40 rpm is
discharging 1.0 m3 /min. The pump has a stroke of 40 cm and the
diameter of the piston is 20 cm. The delivery and suction heads are 20 m and 5
m respectively. Find the slip of the pump and the power required to drive the
pump.