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What is extinguisher?
An Extinguisher is a portable apparatus for putting out small fires by ejecting extinguishing chemicals.
There are four classes of fire extinguishers – A, B, C and D. These are:
Class A extinguishers will put out fires in ordinary combustibles such as wood and paper
Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.
Class C extinguishers are suitable for use only on electrically energized fires.
Class D extinguishers are designed for use on flammable metals.
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