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27 Cards in this Set
- Front
- Back
Portable fire fighting device designed to combat incipient fires |
Fire Extinguisher |
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Extinguishing system that uses dry chemical as the primary extinguishing agent; often used to protect areas containing volatile flammable liquids |
Dry Chemical |
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Extinguishing agent suitable for use on combustible metal fires |
Dry Powder |
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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 |
Wet Chemical System |
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Any substance used for the purpose of controlling or extinguishing a fire |
Extinguishing Agent |
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A phenomenon that occurs when mixtures of alkaline based chemicals and certain cooking oils come into contact resulting in the information of a soapy film |
Saponification |
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In the fire service, associated with a fire extinguisher capable of atomizing water through a special applicator. Fire extinguishers use distilled water, while backpack pump type use ordinary water |
Water Mist |
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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 |
Air Aspirating Foam Nozzle |
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Chemical compounds that contain carbon plus one or more elements from the halogen series. Most commonly used as extinguishing agents for Class B and Class C fires |
Halogenated Extinguishing Agents AKA Halogenated Hydrocarbons |
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Capable of causing corrosion by gradually eroding, rusting, or destroying a material |
Corrosive |
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Must be readily accessible In working order Suitable for the hazard Large enough to control the size fire User must know how to operate the extinguisher |
Things needed for an extinguisher to be effective |
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Fires involving ordinary combustibles |
Class A |
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Fires involving flammable and combustible liquids Dry chemical agents, halogenated agents, or foams |
Class B |
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Fires involving energized electrical equipment Nonconductive agents such as carbon dioxide, halon, and dry chemical or turning off power source |
Class C |
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Fires involving combustible metals No one extinguishing agent works on all of this type of fire |
Class D |
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Fires that involve oils that are used in commercial cooking applications |
Class K |
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Smothering- oxygen exclusion Cooling- reducing the burning material temperature Chain breaking- interrupting the chemical chain reaction Saponification- forming an oxygen excluding soapy foam |
Extiguishing Methods |
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Water |
A |
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Foam |
AB |
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Wet Chem |
AK |
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Mist |
AC |
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Ordinary Dry Chem |
BC |
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Multi Purpose Dry Chem |
ABC |
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Carbon Dioxide |
BC |
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Dry Powder |
D |
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Clean Agent |
BC or ABC |
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Stored pressure Cartridge Pump Invert |
Ways that extinguishing agents are expelled |