Question 473Steam Plants - Assistant Engineer70% 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 burner flame and will automatically shut off the fuel supply if the flame is lost or becomes unstable, preventing the buildup of unburned fuel that could lead to an explosion. This is a critical safety feature to protect the boiler and surrounding equipment.
The other answer choices are incorrect because they do not accurately describe the primary function of the flame safeguard system. Option A is incorrect as the system is not focused on preventing dry firing or overpressure. Option B is too broad, as the system is specifically designed to prevent explosions, not just uncontrolled fires. Option D is incorrect as the system is not primarily focused on overheating of the pressure parts.
Related Questions
#471 A photoelectric cell installed in an automatically fired auxiliary boiler burner management system _______________.#472 The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.#474 Constant capacity, pressure atomizing, fuel burners designed to meet a wide variation in steaming loads on an auxiliary boiler, are _______________.#475 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 _______________.#476 One factor for determining the minimum feed water inlet temperature to a boiler economizer is the _______________.