1. Oil (S ¼ 0.92) is pumped from a storage tank and discharges into a reservoir through a pipe whose length is L ¼ 550 m and diameter is D ¼ 350 mm. The pump efficiency is Z ¼ 80% and its power output is WW_ P ¼ 10 kW. Determine the discharge Q if the elevation in the tank is zA ¼ 24 m, the tank pressure is pA ¼ 110 kPa, and the lower reservoir elevation is zB ¼ 18 m. The sum of the minor losses in the pipe is SK ¼ 4.5 and the friction factor is f ¼ 0.015.