centrifugal pump delivers 50 liters of water per second against a total head of 24 meters running at 1500 rpm. The velocity of flow is maintained constant at 2.4 m/s and the blades are curved back at 30o to the tangent at exit. The inner diameter is half of the outer diameter. If the manometric efficiency is 80%,
Find: (a) blade angle at inlet, and (b) power required to drive the pump.