What safety considerations apply when using water streams near flammable liquids?

• A. Use high-pressure application for effective results
• B. Always apply water directly to the surface
• C. Use fog or low-pressure application as needed
• D. Water should only be used to extinguish fires

Answer: (C)

When dealing with flammable liquids, using fog or low-pressure application is particularly important. This method helps to cool the fire, protect responders, and suppress vapors more effectively than a straight, high-pressure stream. Fog patterns can disperse water over a wider area and reduce the temperature of the flames while minimizing the risk of splashing the burning liquid. This approach is vital in preventing the spread of fire and controlling the situation without exacerbating the hazard, as high-pressure streams could potentially aerosolize flammable liquid or push it into unburned areas, creating additional fire risks.

Utilizing fog or low-pressure water application allows firefighters to create a barrier that can help contain the fire while cooling nearby materials and reducing toxic smoke output. This is why it is the preferred method when addressing incidents involving flammable liquids.