When fighting fires in spaces containing...

🔍 Key Concepts

• LPG behavior in fire – how pressurized gas bottles react to heat and the risk of BLEVE (Boiling Liquid Expanding Vapor Explosion) • Firefighting priorities – protect life first, then prevent explosion/extension, then extinguish the fire • Cooling vs. containing – difference between shutting off supply, shielding from heat, and controlling the cylinder temperature

💭 Think About

• If LPG bottles are already in a space that is on fire, which action most directly reduces the risk of the cylinders rupturing or exploding? • Which option deals with the effect of heat on the cylinders themselves, rather than only the gas flow or the surrounding space? • Think about what standard firefighting practice says about handling pressurized containers exposed to fire.

✅ Before You Answer

• Identify which choice focuses on controlling cylinder temperature/exposure to heat rather than only the flame itself • Consider which action is immediately practical and safest under intense fire conditions (you may not be able to get close enough to operate valves or build insulation) • Recall that for pressurized gas cylinders, a key tactic is often to prevent heating and relieve the hazard, not just block off the gas or shield it.

When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas), which is the most prudent action to take?

See that the valves on all LPG bottles are closed

Place insulating material over the bottles

Attempt to isolate the fire from the LPG

Cool the bottles or remove them from the fire area

🔍 Key Concepts

💭 Think About

✅ Before You Answer