The foam application technique that directs the foam stream on the ground near the front edge of the burning liquid pool or spill is called what?

• A. Rain-Down Method
• B. Bank-Down Method
• C. Roll-On Method
• D. Spray-On Method

Answer: (C)

Roll-On method is used to create a continuous foam blanket directly on the surface of the liquid by directing foam along the ground at the front edge of the pool and rolling it across the surface. This rolling action builds a stable surface layer that blankets the fuel, cooling it and separating it from air, which helps suppress the fire and reduce vapor release. This approach delivers rapid, uniform surface coverage, which is essential for a pool or spill fire. Other approaches involve dropping foam from above, spraying across the surface, or applying foam from the side, which don’t establish the same immediate, edge-to-back blanket on the liquid surface.