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What are the 3 types of fire extinguishers and on what type of fire do you use them?

Understanding fire extinguisher classes

  • Class A extinguishers will put out fires in ordinary combustibles such as wood and paper.
  • Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.
  • Class C extinguishers are suitable for use only on electrically energized fires.

What are the 3 different types of fire extinguishers?

Different types of fire extinguishers are designed to fight different types of fire. The three most common types of fire extinguishers are: air pressurized water, CO2 (carbon dioxide), and dry chemical.

What are the types of fire extinguishers and their uses?

Types of extinguishers

  • Water extinguishers. Water extinguishers are one of the most cost-effective ways to fight Class A fires, those fuelled by solid materials such as paper, wood and textiles.
  • Foam extinguishers.
  • Powder extinguishers.
  • Carbon dioxide extinguishers (CO2)
  • Wet chemical extinguishers.
  • Fire blankets.

Which type of extinguisher is used to put off electric fire?

class C fire extinguisher

What type of fire extinguisher is used in schools?

Multipurpose Dry Chemical Ordinary Combustibles, Flammable Liquids, or Electrical Equipment – Multi- purpose dry chemical is suitable for use on class A, B, and C. ABC is the most common type of fire extinguisher in a schools.

Do we need fire extinguishers?

Yes, provided you know when and how to use it. Fire extinguishers can be a small but important part of the home fire safety plan. They can save lives and property by putting out a small fire or suppressing it until the fire department arrives. You’ll also want to make sure that the fire is confined to one area.

Are fire extinguishers required in classrooms?

Fire detection, fire sprinkler systems, and fire extinguishers are all required in most educational occupancies, with some exceptions for the first two items.৮ এপ্রিল, ২০২০

How do you use a fire extinguisher in school?

How to Use a Portable Fire Extinguisher

  1. P Pull the pin used to lock the handles.
  2. A Aim at the base of the fire. It is where the fuel source is located.
  3. S Squeeze the handle to discharge the agent.
  4. S Sweep the nozzle from side to side to completely extinguish the fire.

What is the advantage of using an ABC type of fire extinguisher?

ABC Powder – Suitable for Class A, B, C and Electrical Fires Twice as effective as Foam on Class A fires, for example: a 6kg Powder is rated 27A, whereas a 6lt Foam is rated 13A. Not as susceptible to frost as water-based extinguishers. Very effective for burning and free-flowing liquids.

Why CO2 is considered as the best fire extinguisher?

The carbon dioxide considered the best fire extinguisher to put off fires caused by burning of inflammable liquids such as petrol or oil because carbon dioxide stops the influence of oxygen because it decreases the oxygen present in that fire which leads to the fallout of fire.

Why CO2 extinguisher is used for electrical fires?

CO2 fire extinguishers were originally designed for use on flammable liquid fires and therefore have a class B fire rating. They are ideal for electrical fires, as CO2 is not a conductor and they do not leave behind any harmful residue.

How does a CO2 fire extinguisher work?

Water extinguishers work mainly by removing heat from the fire, though they also help to cut off a fire’s oxygen supply. Carbon dioxide (CO2) extinguishers contain a mixture of liquid and gaseous carbon dioxide (a nonflammable gas). CO2 is normally a gas at room temperature and pressure.২৪ আগস্ট, ২০২০

Are CO2 fire extinguishers good for electrical fires?

CO2 fire extinguishers are designed for Class B liquid fires & safe to use on live electrical. Class C fires, which involve energized electrical equipment, can also be extinguished with CO2. CO2 displaces the oxygen to extinguish the fire. When the CO2 gas is released from the extinguisher it looks like dry ice.২২ এপ্রিল, ২০১৯

What happens if you use the wrong fire extinguisher?

The dangers of using the incorrect fire extinguisher: Applying water to a metal fire could cause hydrogen to be given off resulting in an explosion. Special dry powder fire extinguishers are available for use on metal fires.

Can a carbon dioxide fire extinguisher be used on all fires?

Carbon dioxide fire extinguishers extinguish fire by taking away the oxygen element of the fire triangle, and by removing the heat with a very cold discharge. Carbon dioxide extinguishers can be used on Class B and C fires. They are usually ineffective on Class A fires.