Question 255Safety & Environmental - Assistant Engineer

The correct answer is D) Keeping the duct interior clean. Maintaining the cleanliness of the interior of ventilation ducts is crucial in reducing the possibility of a fire from rapidly spreading. Accumulated dust, debris, and grease buildup within the ducts can act as fuel, allowing a fire to quickly propagate through the ductwork. By keeping the duct interior clean, the amount of available fuel is minimized, which in turn slows down the potential spread of the fire. The other options, while potentially helpful in addressing a fire, do not directly address the underlying issue of reducing the possibility of the fire from spreading rapidly through the ductwork. Portable CO2 extinguishers (A) and charged fire hoses (C) are reactive measures, whereas keeping the duct interior clean (D) is a proactive approach to preventing the rapid spread of a fire.