Question 54 QMED05 - Machinist-Pump Technician

The Correct Answer is B **Explanation for Option B (Lowest Priority):** Option B, "Break out the nearest fire hose," represents the lowest priority action in this immediate scenario. The fire hose (typically a standpipe hose connection) is intended for large, established fires and requires trained personnel (often the fire department) to use effectively and safely. In the initial stage of a suspected electrical fire (indicated by the smell of burning insulation), the primary immediate goals are life safety, containment, and cutting off the energy source. Attempting to use a large water-based hose on a potential Class C (electrical) fire is extremely dangerous (risk of electrocution) and overkill if the fire is small and containable, making it a low priority compared to the other containment and safety actions. **Why the other options are higher priority (Incorrect Answers):** * **A) Locate the nearest CO2 or dry chemical extinguisher:** This is a high-priority action. If the fire is small and manageable, a CO2 or dry chemical (ABC or BC) extinguisher is the appropriate tool for a Class C (electrical) fire, as it will not conduct electricity and is essential for initial extinguishment efforts. * **C) Secure power to the washers and dryers:** This is a critically high-priority action. Since the smell suggests an electrical fire, cutting off the power (the fuel source for an electrical fire) is necessary to prevent the fire from growing, potentially allowing the fire to self-extinguish, and making it safer for extinguishment attempts. * **D) Close the door to the room:** This is a high-priority, life-saving, and containment action (the "C" in RACE). Closing the door restricts the supply of oxygen, contains the smoke and heat, and buys critical time for occupants to evacuate and for the fire department to arrive.