Question 4024 of 229 · California Water Distribution Operator Exam
Which is an example of a permit-required confined space hazard for water workers?
Exactly one answer is correct.
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Correct answer to question 4024
- D: A valve vault with possible low oxygen
Explanation
Vaults, tanks and wet wells can hold toxic gases or lack oxygen. A permit, attendant, ventilation and rescue plan are needed.
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