A fluid is pumped at the rate of 10 lb/sec to a height of 55 ft. The horse power required is _____________ hp? August 27, 2021March 10, 2019 by admin A fluid is pumped at the rate of 10 lb/sec to a height of 55 ft. The horse power required is _____________ hp? A. 1 B. 10/55 C. 5.5 D. 1/55