Question 2009 of 229 · California Water Distribution Operator Exam
What is the water hammer?
Exactly one answer is correct.
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Correct answer to question 2009
- B: A pressure surge caused by a sudden change in flow velocity
Explanation
When flow is stopped or started quickly, the moving mass of water creates a shock wave. Surges can break pipe, fittings and thrust blocks.
More questions: Distribution System Design and Hydraulics
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