Question 3020 of 223 · California Water Treatment Operator Exam
Chlorine gas feed systems often use a vacuum regulator because
Exactly one answer is correct.
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Correct answer to question 3020
- C: a leak in the vacuum line stops the gas from escaping into the room
Explanation
Vacuum feed keeps the gas under negative pressure downstream of the regulator, so a line break draws air in rather than gas out.
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