USCG USCG Motor
Set 6 • Question #267 of 382
Launch Interactive Practice Room While an auxiliary boiler is operating at design load, which of the following actions will occur if the automatic combustion control system detects a steam pressure drop?155.
A
More burners will be lighted off.
B
The registers will open fully.
C
The fuel oil valve and air damper will open wider. .
✓ Correct Answer
D
The steam flow will be automatically regulated
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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