(Solved): Consider Underground water is to be pumped by a 78 percent efficient 5 kW submerged pump to a pool ...

Consider Underground water is to be pumped by a 78 percent efficient 5 kW submerged pump to a pool whose free surface is $30\mathrm{m}$ above the underground water level. The diameter of the pipe is $7\mathrm{cm}$ on the intake side and $5\mathrm{cm}$ on the discharge side. Determine (a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic eneray correction factors to be negligible.