Engine Refrigeration (Supplementary) USCG Question #96 (Set 2)

If a liquid drying agent is used in a refrigeration system already equipped with a solid drying agent, the liquid drying agent will cause what type of reaction?

Official USCG Answer & Rule Citation

Correct Answer: Option A — it will release the moisture already trapped in the solid drying agent

Liquid drying agents are chemically incompatible with solid desiccant cores. Introducing a liquid dryer into a system containing solid desiccants triggers an adverse chemical reaction that strips and releases previously trapped moisture back into the circulating refrigerant stream.

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