Question 1016 of 234 · California Wastewater Operator Exam
Digester gas piping and gas-handling equipment should be protected by
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Correct answer to question 1016
- A: flame arresters and explosion-proof electrical equipment
Explanation
Flame arresters stop a flame traveling back along gas piping, and Class I Division 1 electrical equipment prevents ignition. Open vents or heaters near gas handling add ignition and gas release risks.
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