Why are specialized foams designed solely for use on unignited spills of hazardous liquids?
A) The roll-on method is ineffective for hazardous liquids.
B) A thick, viscous foam can form a heat-resistant blanket over burning liquid
Surfaces.
C) The US Department of Agriculture Forest Service requires specialized foams for hazardous materials.
D) Unignited chemicals tend to change the pH of water or remove the water from fire fighting foam, making the foam ineffective.

Question

Quizplus · Accepted Answer

Specialized foams are designed for use on unignited spills of hazardous liquids because unignited chemicals can alter the pH of water or absorb the water from firefighting foam, rendering the foam ineffective. This necessitates the use of foams specifically formulated to remain effective in such conditions.

Why Are Specialized Foams Designed Solely for Use on Unignited