Question 12Steam Plants - 1st Asst/Chief

70% to pass

The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent _______________.

Aaccidental dry firing and overpressure
Buncontrolled fires in the furnace
Cexplosions in the boiler furnace
Doverheating of the pressure parts
AI Explanation

The correct answer is C) explosions in the boiler furnace. The primary function of a flame safeguard system on an automatically fired auxiliary boiler is to prevent explosions in the boiler furnace. The flame safeguard system monitors the presence of a flame in the furnace and will automatically shut off the fuel supply if the flame is lost, preventing the buildup of unburned fuel that could lead to an explosion. The other options are incorrect because: A) accidental dry firing and overpressure is not the primary function of the flame safeguard system, B) uncontrolled fires in the furnace are prevented by the flame safeguard system, and D) overheating of the pressure parts is not the primary function of the flame safeguard system.

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Official Resources
46 CFR Machinery & Electrical 46 CFR Engineering USCG National Maritime Center
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