Question 3011 of 229 · California Water Distribution Operator Exam
After shutting off a dry-barrel hydrant, how can an operator confirm the barrel is draining?
Exactly one answer is correct.
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Correct answer to question 3011
- A: Hold a hand over a nozzle and feel suction as the barrel drains
Explanation
Suction at the nozzle shows the drain valve is open and the barrel is emptying. A barrel that stays full can freeze or become contaminated.
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