Alarge water pump is being designed for a nuclear reactor. the pump should deliver 2500 gpm of water at a net rate head of 45 ft at its best efficiency point. a motor that spins at 300 rpm is available. what kind of pump should be designed? show all your calculations and justify your choice. estimate the maximum pump efficiency that can be hoped for with this pump (5 points). also estimate the power (bhp) required to run the pump.

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2