Seven hundred gpm of water are being discharged by a centrifugal pump 5 ft above the pump inlet. The inlet pressure is 4 inHg above atmospheric and the discharge pressure is 29 psia. If the pump has an 8-in diameter inlet and a 4-in diameter discharge, find (a) the pump efficiency, (b1) the new flow rate (b2) net head (b3) and brake horsepower if the pump speed is increased from 1600 to 3200 rpm. Assume the pump input is 8 hp. Note: Head is proportional to (Speed)^2. Brakehorsepower is proportional to (Speed)^3

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