Question 7019 of 229 · California Water Distribution Operator Exam
A 12-inch valve is closed against 60 psi. What is the total force on the valve face?
Exactly one answer is correct.
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Correct answer to question 7019
- D: 6,782 lb
Explanation
Force = 0.785 x D^2 (ft) x 144 sq in/sq ft x psi = 0.785 x 1 x 144 x 60 = 6,782 lb. Multiplying psi by the diameter in inches gives only 720, which is not an area.
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