AZ ROC B-4 General Residential Engineering Practice Questions - Arizona ROC B-4 General Residential Engineering Examination Exam

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A pool contractor calculates that a swimming pool filtration system must move 60 GPM against a Total Dynamic Head (TDH) of 50 feet. Assuming a pump hydraulic efficiency of 65%, what is the required brake horsepower (BHP)? (Formula: BHP = (GPM * TDH in feet) / (3960 * Efficiency))

0.75 HP 1.17 HP 2.00 HP 3.50 HP

Correct Answer:

1.17 HP

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