Fire extinguishers work by removing heat, air, or both. Artwork: You need to to take away one or more of heat, air (oxygen), or fuel to break the triangle and put the fire.
The purpose of a fire extinguisher is to break this process by removing or blocking one of these three elements. Once this happens, the fire will either extinguish immediately or burn out. To remove heat, a fire extinguisher can smother the fire. To remove oxygen, the fire extinguisher can smother it as well.
How Fire Extinguishers Work | HowStuffWorks
Fire extinguishers are rated by the type of fire they can put out. Class A extinguishers can put out fires from "ordinary combustibles" such as wood, plastic or paper. Class B can put out burning liquids such as gasoline or grease. Class C can put out electrical fires. Extinguishers marked A, B and C can put out all types. Class D extinguishers, designed to put out burning metal, are rare. …
People Also Ask how do fire extinguishers work
How do I know if my fire extinguisher is working?
When doing a DIY fire extinguisher inspection, check to make sure:The gauge on the top of the extinguisher is in the green. Some non-rechargeable extinguishers also have push-to-test pressure indicators.There is no damage or corrosion to the vessel.The expiration date has not passed.The pin is in the handle,The operating instructions face outward,It’s easily reachable and not stashed behind something.
How to use a fire extinguisher in the workplace?
Pull the pin on the fire extinguisher.Aim the nozzle at the base of the fire.Squeeze the trigger in a controlled manner.Sweep the nozzle of the fire extinguisher from side to side to cover the entire area.
How to use fire extinguisher correctly?
Using a fire extinguisherPull: Pull the pin, this will break the tamper seal.Aim: Aim low, pointing the nozzle or hose at the base of the fire. …Squeeze: Squeeze the handle to release the extinguishing agent.Sweep: Sweep from side to side at the base of the fire, the fuel source, until the fire is out.
What is the function of a fire extinguisher?
What Does Fire Extinguisher Mean? Fire extinguishers are portable devices used to extinguish small fires or reduce their destruction before firefighters arrive at the scene. These are kept handy at places, namely fire points, in buildings, factories, public paces or transportation.
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