USCG USCG Motor
Set 13 • Question #126 of 382
Launch Interactive Practice Room Coast Guard Regulations (46 CFR) require that oil fired automatic steam boilers, and hot water boilers shall be equipped with a prepurge programming control that will assure at least __________.
A
2 air changes
B
4 air changes
✓ Correct Answer
C
3 air changes
D
5 air changes
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Coast Guard Regulations (46 CFR) require that oil fired automatic steam boilers, and hot water boilers shall be equipped with a prepurge programming control that will assure at least', the correct operational principle is: '4 air changes'.
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