Determine the input power to an electric motor (nm = 90%) supplying a pump (np = 80%) delivering 50 L/sec of water (p= 1000 kg/m; p = 0.001 kg/m.s) from Tank-1 to Tank-2 as shown below if the pipeline length is 200 m long, of 150 mm diameter galvanized iron (assume surface roughness is 0.15 mm) for a pumping losses of 100 m [Ans: 77.0937 kW] Note: Use the formula P pxgxQXH total nm X np For finding the input power if motor & pump efficiencies are given; Valve is Ball type and fully open; Motor Pump Valve 100 m