Water and foam: These fire extinguishers put out fires in two ways. By applying water to the fire, you remove heat from the equation. By applying water to the fire, you remove heat from the equation. Additionally, the sudden, high volume of water removes oxygen from the other elements by smothering the fire.
When operating a fire extinguisher, tell residents to remember the word PASS: Pull the pin. Hold the extinguisher with the nozzle pointing away from you and release the locking mechanism. Aim low. Point the extinguisher at the base of …
How do fire extinguishers work? – Explain that Stuff
1) Water extinguishers work mainly by cooling (removing heat), but a dense spray of water droplets also helps to cut off oxygen. 2) Dry powder …
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 …
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How do fire extinguishers work?
Fire extinguishers are sturdy metal cylinders filled with water or a smothering material. When you depress a lever at the top of the cylinder, the material is expelled by high pressure, similar to the way material is forced out of an aerosol can. The diagram below shows a typical design. This content is not compatible on this device.
How can you help people decide when to use a fire extinguisher?
Help people decide when to use a fire extinguisher Fire extinguishers can be helpful on a small fire. Consider providing a checklist to help people prepare to use a fire extinguisher on a potential fire. For example: Have I alerted others in the building that there’s a fire? Has someone called the fire department?
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.
What can a Class A fire extinguisher 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.
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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