Refrigeration & Air Conditioning USCG Question #365 (Set 7)

Which of the following is true concerning the class "A" air conditioning system shown in the illustration as used to condition the air of large public spaces? Illustration GS-RA-09 Illustration GS-RA-09: the U.S. Coast Guard has not released this illustration.

Official USCG Answer & Rule Citation

Correct Answer: Option A — The dry bulb room temperature is controlled by a steam heated reheater and its associated pneumatic control valve.

Large public space Class A marine air conditioning systems utilize a steam-heated reheater controlled by a pneumatic valve to precisely regulate dry bulb room temperatures following the dehumidification process.

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