Engine General (Supplementary) USCG Question #986 (Set 17)

In the illustrated terminal reheat multiple zone system, what statement represents the functioning of the winter outside air duct thermostat? GS-RA-42 Illustration GS-RA-42: the U.S. Coast Guard has not released this illustration.

Official USCG Answer & Rule Citation

Correct Answer: Option A — During the heating season, the winter thermostat senses the outside air temperature and closes the exhaust and outside air dampers when the outside air temperature is significantly lower than typical indoor air temperatures.

Under USCG National Maritime Center examination standards, the accepted correct answer is: During the heating season, the winter thermostat senses the outside air temperature and closes the exhaust and outside air dampers when the outside air temperature is significantly lower than typical indoor air temperatures..

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