explain the working and construction of a fire extinguisher
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One of them is a solid, liquid, or gas substance for fighting the fire. The other one is called a propellant and is a pressurized chemical that makes the fire-fighting substance come out when you press the extinguisher handle.
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The fire extinguisher is a device that is used to extinguish the fire.
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. Foam extinguishers also help to absorb heat, since the cool foam they release contains a lot of water.
Explanation:
See how the fire extinguisher works in the attachment.
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