Question

How does a fire extinguisher work with explanation ​

Answer 1

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Fire extinguisher contains carbon dioxide in it. So as we know oxygen is required for fire to burn.

Carbon dioxide reduces the oxygen around fire and surrounds it reduces the fire

Not usually used for electric fires

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Answer 2

Answer:

Explanation:

In this extinguisher, a plastic siphon tube leads from the bottom of the fire-suppressant reservoir to the top of the extinguisher. A spring-mounted valve blocks the passageway from the siphon to the nozzle. At the top of the cylinder, there is a smaller cylinder filled with a compressed gas -- liquid carbon dioxide, for example. A release valve keeps the compressed gas from escaping.

To use the extinguisher, you pull out the safety pin and depress the operating lever. The lever pushes on an actuating rod, which presses the spring-mounted valve down to open up the passage to the nozzle. The bottom of the actuating rod has a sharp point, which pierces the gas cylinder release valve.

The metal safety pin prevents the operating lever from closing accidentally.

The operating lever pushes down on an actuating rod (the blue piece).

The compressed gas escapes, applying downward pressure on the fire-suppressant material. This drives the material up the siphon and out the nozzle with considerable force. The proper way to use the extinguisher is to aim it directly at the fuel, rather than the flames themselves, and move the stream with a sweeping motion.