Question 9009 of 234 · California Wastewater Operator Exam
A wet well is 10 ft by 12 ft. The pump lowers the water level by 2.5 ft in 5 minutes. What is the pumping rate?
Exactly one answer is correct.
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Correct answer to question 9009
- B: 448.8 gpm
Explanation
Volume = 10 x 12 x 2.5 = 300 ft3 x 7.48 = 2,244 gal. Rate = 2,244 / 5 min = 448.8 gpm. Forgetting to convert to gallons or to divide by time are common mistakes.
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