RETA Certified Assistant Refrigeration Operator (CARO)

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During a routine tour, a Certified Assistant Refrigeration Operator (CARO) discovers a small, weeping leak from a valve stem packing nut. There is a faint smell of ammonia, but no visible cloud, and the area's ammonia detector is not in alarm. What is the most appropriate initial action?

Immediately activate the full emergency shutdown for the entire facility. Attempt to tighten the packing nut using a standard adjustable wrench. Evacuate the machinery room and call 911. Notify the supervising operator or chief engineer immediately and keep a safe distance.

Correct Answer:

Notify the supervising operator or chief engineer immediately and keep a safe distance.

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