USCG USCG Motor
Set 11 • Question #85 of 382
Launch Interactive Practice Room Automatic combustion control systems for some auxiliary boilers are designed to cycle burners on and off in response to __________.
A
fuel supply pressure
B
fuel return pressure
C
steam pressure
✓ Correct Answer
D
furnace air pressure
USCG NMC Regulatory Explanation
A pressuretrol is an electro-mechanical steam pressure controller on auxiliary boilers that senses steam header pressure fluctuations and modulates burner firing rates to maintain set steam pressure.
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