Question 12Steam Plants - 1st Asst/Chief70% to pass
The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent _______________.
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.
Related Questions
#10 A photoelectric cell installed in an automatically fired auxiliary boiler burner management system _______________.#11 The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.#13 Constant capacity, pressure atomizing, fuel burners designed to meet a wide variation in steaming loads on an auxiliary boiler, are _______________.#14 During unsafe firing conditions in a large automatic auxiliary boiler, various control actuators are interlocked with the burner circuit to prevent start-up, in addition to safety shutdown. These controls are referred to as _______________.#15 High pressure steam drains are normally discharged to the _______________.