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16 Cards in this Set

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Air-Aspirating Foam Nozzle
Foam nozzle especially designed to provide the aeration required to make the highest quality foam possible; most effective appliance for the generation of low-expansion foam.
Alloy
Substance or mixture composed of two or more metals (or a metal and nonmetallic elements) fused together and dissolved into each other when molten intended to enhance the properties or usefulness of the base metal.
Aqueous Film Forming Foam (AFFF)
Synthetic foam concentrate that, when combined with water, can form a complete vapor barrier over fuel spills and fires and is a highly effective extinguishing and blanketing agent on hydrocarbon fuels. Also called light water.
Conductivity
The ability of a substance to conduct an electrical current.
Corrosive Materials
Gaseous, liquid, or solid materials that can burn, irritate, or destroy human skin tissue and can severely corrode steel. Also called Corrosives.
Dry Chemical
Extinguishing system that uses dry-chemical powder as the primary extinguishing agent; often used to protect areas containing volatile flammable liquids.
Dry Powder
Extinguishing agent suitable for use on combustible metal fires.
Escape Route
Pathway to safety. It can lead to an already burned area, a previously constructed safety area, a meadow that will not burn, or a natural rocky area that is large enough to take refuge without being burned. When escape routes deviate from a defined physical path, they must be clearly marked (flagged).
Extinguishing Agent
Any substance used for the purpose of controlling or extinguishing a fire.
Fire Extinguisher
Portable fire fighting device designed to combat incipient fires.
Halogenated Agent System
Extinguishing system that uses a halogenated gas as the primary extinguishing agent; usually installed to protect highly sensitive electronic equipment.
Halogenated Agents
Chemical compounds (halogenated hydrocarbons) that contain carbon plus one or more elements from the halogen series. Halon 1301 and Halon 1211 are most commonly used as extinguishing agents for Class B and Class C fires. Also called Halogenated Hydrocarbons.
Smothering
Act of excluding oxygen from a fuel.
Total Flooding System
Fire-suppression system designed to protect hazards within enclosed structures. Foam is released into a compartment or area and fills it completely to extinguish the fire.
Water Mist
In the fire service, water mist is associated with a fire extinguisher capable of atomizing water through a special applicator. Water-mist fire extinguishers use distilled water, while back-pump type water-mist extinguishers use ordinary water.
Wet Chemical System
Extinguishing system that uses a wet-chemical solution as the primary extinguishing agent; usually installed in range hoods and associated ducting where grease may accumulate.