Which fire stream is recommended to safely move burning flammable liquid?

Using a wide-angle or penetrating fog pattern to extinguish burning flammable liquids is highly effective because it can provide several benefits critical for safety. This type of fire stream creates a fine mist of water droplets that can cool the burning surface while displacing the flammable vapors that are contributing to the fire. The dispersed water droplets increase the surface area for evaporation, which facilitates heat absorption and helps to prevent re-ignition.

Moreover, the wide-angle fog pattern reduces the risk of splashing the burning liquid, which could spread the fire. It also minimizes the potential for generating fuel explosions by controlling the application of water more effectively in the presence of flammable vapors. This method creates a protective barrier between the firefighter and the flames, providing an added level of safety during suppression efforts.

In contrast, a solid stream could potentially push the burning liquid, causing it to spread. A combination spray may not deliver the targeted cooling effect required in this scenario, and a straight stream might also fail to effectively manage vapor disbursement or could inadvertently cause the flammable material to travel, posing additional hazards.