Question 6022 of 234 · California Wastewater Operator Exam
The safe way to inspect a digester gas safety device such as a pressure relief valve is
Exactly one answer is correct.
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Correct answer to question 6022
- A: following a written procedure and wearing proper protection with no ignition sources
Explanation
Digester gas is explosive and may contain H2S. Work on gas systems requires lockout, gas testing and a hot work permit where relevant.
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