Question: Water flows from the bottom of a large tank where the pressure is 100 psig through a pipe to a turbine which produces 5.82 hp. The pipe leading to the turbine is 60 ft below the bottom of the tank. In this pipe (at the turbine) the pressure is 50 psig, and the velocity is 70 fVs. The flow rate is 100 lbds. If the friction loss in the system, not including the turbine, is 40 ft Ibf/lbm, find the efficiency of the turbine.