A water extinguisher is like a giant water pistol, but instead of using pressure from your finger to fire out the water, it uses pressure from a …
Once the fire starts, it provides heat and keeps burning. That is why throwing water on a fire puts it out. When water hits fire it boils, turns to steam and floats away, taking some heat with it. It also prevents oxygen from reaching the fuel. Most fire extinguishers work by separating the fuel from the oxygen. The oxygen comes from the air.
How Does A Fire Extinguisher Put Out A Fire?
The most common types of fire extinguishers are pressurized with either carbon dioxide or nitrogen, to propel an active material towards the fire. This active ingredient can be potassium bicarbonate in the form of a powder, water, or an evaporating fluorocarbon agent. While many people believe that the physical smothering of the fire is what extinguishes it, the truth is that …
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 …
People Also Ask what do fire extinguishers do to put out fires
Do fire extinguishers do what they do?
A fire extinguisher is an absolute necessity in any home or office. While there’s a good chance that the extinguisher will sit on the wall for years, collecting dust, it could end up saving your property and even your life. In this article, we’ll see exactly what fire extinguishers do and how they do it.
Can a water extinguisher put out a fire?
But it can be dangerous in the wrong situation. A water extinguisher can put out things like burning wood, paper or cardboard, but it does not work well on electrical fires or fires involving inflammable liquids. In an electrical fire, the water may conduct the current, which can electrocute you.
How do CO2 fire extinguishers work?
4) CO2 extinguishers mostly work by cooling a fire, but they also help to cut off its oxygen. There are four main types of extinguishers and they work in slightly different ways: Water extinguishers, which are the most common, are essentially tanks full of water, often with nitrogen or carbon dioxide as the propellant to make them come out.
How do you use a fire extinguisher correctly?
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. In the next section, we’ll look at the major types of extinguishers. Water is the most familiar extinguishing material, and it is one of the most effective.
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Fire Safety:How to Use a Fire Extinguisher Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher