Which of the following statements about Class A foam concentrates is MOST accurate?
A) Class A foam is used for structural fires, but is not suitable for wildland fires.
B) Class A foam is used to prevent ignition of fires involving flammable and combustible liquids.
C) Class A foam reduces the surface tension of water, allowing better water penetration into the fuel.
D) Class A foam concentrate coats and protects application equipment; equipment should not be flushed after use.

Question

Quizplus · Accepted Answer

Class A foam is specifically designed to improve the effectiveness of water in suppressing fires, particularly in structural and wildland fires. It reduces the surface tension of water, which enhances its soaking and spreading capabilities on the burning materials, allowing for better penetration into the fuel and more efficient fire suppression.

Which of the Following Statements About Class a Foam Concentrates