Refrigeration & Air Conditioning USCG Question #450 (Set 9)

Refrigeration systems using forced air circulation evaporators have a tendency to cause rapid dehydration of produce in chill boxes. Which of the following will minimize this dehydration?

Official USCG Answer & Rule Citation

Correct Answer: Option C — the air is circulated slowly over a large evaporator with a minimum temperature differential

Minimizing produce dehydration requires maintaining a high relative humidity in shipboard chill boxes. Slow air circulation over a large surface area evaporator with a minimal temperature differential prevents excessive moisture removal and frost accumulation on the coils.

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