Question 2018 of 229 · California Water Distribution Operator Exam
During a hydrant flow test, what does the residual pressure represent?
Exactly one answer is correct.
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Correct answer to question 2018
- D: The pressure remaining in the main while water is flowing from the hydrant
Explanation
Comparing static and residual pressure shows how much capacity is left in the system. A big drop means limited fire flow.
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