A mercury-water differential manometer, R'=740mm, is connected from the 100-mm-diameter suction pipe to the 80-mm-diameter discharge pipe of pump, as...

A mercury-water differential manometer, R’=740mm, is connected from the 100-mm-diameter suction pipe to the 80-mm-diameter discharge pipe of pump, as shown in the Figure. The centerline of the suction pipe is 330mm below the discharge pipe. For Q=3.42m3/ min of water, calculate the head developed by the pump. (ans: 13.19m)