283. A centrifugal pump (efficiency 88%) lifts water through a total height of 40 m from a

reservoir to discharge. Pumping is through 300 m of 75 mm diameter pipe at the rate of 20

liter/s. If pipe friction, f = 0.025, what horsepower is required?

A. 28.4 kW B. 32.2 kW C. 25kW D. 9kW