explain the construction and working of a modern fire extinguisher.
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Answer:
A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations.
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Explanation:
Dry powder extinguishers are tanks of dry powder with compressed nitrogen as the propellant. ... Foam extinguishers are tanks of water and foam with compressed nitrogen as the propellant. They work by smothering the fire: when you spread a thin layer of foam over a fire, you cut the fuel off from the oxygen around it.
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