Which option best describes the recommended attack approach for a liquid propane gas truck fire?

Which option best describes the recommended attack approach for a liquid propane gas truck fire?

• A. Place unmanned monitors with smooth bore nozzles.
• B. Let the fire burn to reduce pressure.
• C. Direct attack at the ends of the tank.
• D. Shut off all water supply.

Answer: (A)

When facing a liquid propane gas truck fire, the priority is to protect the tank by cooling it from a safe distance and reducing the heat that could drive a dangerous failure. Using unmanned monitors allows firefighters to apply a high-volume water stream from a secure, distant position, keeping people out of the extreme heat while delivering effective cooling. A smooth bore nozzle is chosen because it produces a heavy, straight stream that delivers substantial cooling power at distance, quickly absorbing heat and helping to prevent a BLEVE—a Boiling Liquid Expanding Vapor Explosion. Directly attacking the ends of the tank concentrates heat near the valves and weakest points, which can accelerate failure or venting. Letting the fire burn unchecked would keep heating the tank and vapor space, increasing the risk of a catastrophic event. Shutting off water would remove the essential cooling needed to protect the tank.

When facing a liquid propane gas truck fire, the priority is to protect the tank by cooling it from a safe distance and reducing the heat that could drive a dangerous failure. Using unmanned monitors allows firefighters to apply a high-volume water stream from a secure, distant position, keeping people out of the extreme heat while delivering effective cooling. A smooth bore nozzle is chosen because it produces a heavy, straight stream that delivers substantial cooling power at distance, quickly absorbing heat and helping to prevent a BLEVE—a Boiling Liquid Expanding Vapor Explosion.

Directly attacking the ends of the tank concentrates heat near the valves and weakest points, which can accelerate failure or venting. Letting the fire burn unchecked would keep heating the tank and vapor space, increasing the risk of a catastrophic event. Shutting off water would remove the essential cooling needed to protect the tank.