Question 2031 of 229 · California Water Distribution Operator Exam
How is the surface area of a valve face calculated when thrust force is needed?
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Correct answer to question 2031
- B: Area = 0.785 x diameter squared
Explanation
The valve face is a circle, so use 0.785 x D^2 in consistent units. Multiplying by pressure in psi then gives the force in pounds.
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