Question 2022 of 229 · California Water Distribution Operator Exam
What is cavitation in a pump?
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Correct answer to question 2022
- D: Vapor bubbles that form and collapse when impeller eye pressure is too low
Explanation
Collapsing bubbles pit the impeller and make a gravel-like noise. It is caused by low suction head, high lift or restricted suction piping.
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