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Fire hazard

Conditions that favor fire development or growth usually involve the mishandling of fueller heat

Combustion

Chemical reaction between oxygen and a combustible fuel

Source of ignition

Spark flame and high temperature

Fire triangle

Illustrates the three elements of fire news at night heat or energy fuel and oxygen the fire extinguishes if any one of these are missing

Class a fire

Fire from cloth fabric wood paper and other combustibles

Class b fire

Fire from flammable gas flammable liquids and other solvents

Class c fire

Fire from electric currents

Class d fire

Fire from combustible metals industrial metallergy

Class k fire

Fire derived from kitchen or cooking incidents

Pass acronym

pull aim squeeze sweep

Class a fire extinguishers

Contains water for use against fires involving ordinary combustibles like paper wood cloth and most plastics

Class b fire extinguisher

Use dry chemicals to put out fires caused by gasoline oil and solvents

Class c fire extinguisher

Contain carbon dioxide for use against electrical fires

Class d fire extinguisher

Sprays dry powder on combustible metals like magnesium titanium aluminum sodium and potassium

Class k fire extinguisher

Use a wet potassium acetate based low ph agent to put out cooking fires in which there are animal or vegetable oils and fats

Smoke detectors

Require a flow of air in order to work well

Heat detectors

Detect fires where there is no smoke activated by the significant increase of temperature associated with fire

Flame detectors

React to movement of flames