JBL Hazardous Materials Practice Test 2026 – Complete Exam Prep

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Aqueous film forming foam is used for?

Suppressing Vapors of Flammable Liquids

AFFF is designed to suppress vapors from flammable liquids by forming a continuous foam blanket on the liquid surface. This film reduces the rate at which the liquid evaporates, lowers the chance of vapors reaching an ignition source, and adds some cooling to the fire, making it easier to control. It’s not meant to absorb spilled liquids, dilute unknown products, or serve any role in crowd control.

Absorbing Liquids

Diluting Unknown Products

Providing Crowd Control

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