A water pump was tested at a rotational rate of 1500 rpm. The following data was obtained (Q is volumetric flow rate, H is head of water, is efficiency). Q (litre/s) 0 10 20 30 40 50 H (m) 10 10.5 10 8.5 6 2.5 0 0.4 0.64 0.72 0.64 0.4 It is proposed to use this pump to draw water form an open sump to an elevation 5.5 m above. The delivery pipe is 10 cm in diameter and has a friction factor of 0.005. Properties of water at temperature= 30 C: = 1.0710-3 kg/ms, = 1025 kg/m3 , vapour pressure = 4.17 kPa.