a centrigugal pump with a 7-in diameter impeller has the performance characteristics as shown below. it is used to pump water at 1000f and the pump inlet is located 12 ft above the open water surface. assume a standard atmospheric pressure of 13.9 psia. use the specific gravity of water. 3.1 for the flow rate of 160 gpm, calculate the friction factors for both smooth pipes. 3.2 estimate the npsh available. 3.3 would you expect cavitation in the pump to be a problem?
