Deck General USCG Question #4758 (Set 150)

Using the available references, if the dry bulb temperature is 76° and the wet bulb temperature is 59°, what is the relative humidity in a cargo hold?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 35%

Using standard psychrometric data with a dry bulb of 76°F and a wet bulb of 59°F corresponds to a dry air condition with a relative humidity of 35%, minimizing the risk of condensation.

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