Question

explain the principal of fire extinguisher

Answer 1

Inside, a fire extinguisher is quite like a giant aerosol can, often with two different substances inside. One of them is a solid, liquid, or gas substance for fighting the fire. The other one is called apropellant and is a pressurized chemical that makes the fire-fighting substance come out when you press the extinguisher handle. Next time you see a fire extinguisher, take a good look. Have you noticed that fire extinguishers are always really strong steel canisters? That because the propellant is stored inside at a high pressure. Strong canisters are needed to stop the extinguishers exploding!

Answer 2

This is the basic principle on which fire extinguishers are built that help to extinguish a fire. ... This means that carbon dioxide fire extinguishers work by removing heat and also oxygen supply to the fire, and thus they are effective in extinguishing fires.