Question 129Motor Plants - QMED

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 is designed to quickly detect the loss of flame in the furnace and immediately shut off the fuel supply to prevent the buildup of unburned fuel, which could lead to an explosion. This is a critical safety feature to ensure the safe operation of the boiler. The other answer choices are incorrect because they do not accurately describe the primary function of the flame safeguard system. Option A) refers to preventing dry firing and overpressure, which are separate safety concerns not directly addressed by the flame safeguard system. Option B) is too broad, as the flame safeguard system is specifically designed to prevent furnace fires, not all uncontrolled fires. Option D) is incorrect because the flame safeguard system is not primarily concerned with overheating of the pressure parts.