A-B Operator Petro-Tech Practice Exam

Stage I vapor recovery is a method of preventing vapors from escaping into the environment.

True False Only during winter Only on diesel facilities

Correct Answer:

True

Explanation:

Stage I vapor recovery focuses on capturing vapors that are displaced when gasoline is transferred from storage tanks, preventing those vapors from escaping to the atmosphere. This system collects the hydrocarbon vapors produced during loading or unloading and routes them back into the storage or treatment system, reducing emissions of volatile organic compounds and helping meet air-quality regulations. This happens year-round and is used at gasoline facilities, not just in winter or only for diesel operations. That’s why the statement is true. The other options misstate when or where Stage I is used.

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