Fires involving pressurized flammable liquids and gases should be treated how?

Fires involving pressurized flammable liquids and gases require careful handling due to the risk of explosions, potential for rapid spread, and the difficulties in controlling such fires. The correct approach is to avoid extinguishing the fire unless the source of fuel can be immediately turned off. This is crucial because attempting to extinguish the flames without addressing the flow of fuel can lead to a more hazardous situation, including an explosion or an increase in fire intensity.

When the fuel supply is still active, extinguishing the fire may merely create a larger problem, exacerbating the situation and endangering firefighters and nearby structures. By first shutting off the fuel source, responders can ensure they are not exacerbating the fire’s conditions while taking further action to safely manage or extinguish the incident.

The other options imply strategies that do not adequately prioritize safety or address the unique risks associated with pressurized flammable liquids and gases, such as engaging the fire directly without controlling the fuel source, which could be catastrophic.