First, it is best to know what a Class A fire is to understand better what the Class A fire extinguisher is intended to do. Class A fires are ones with ordinary combustible materials, such as wood, paper, rubber, cloths, and even plastics. One of the most recognizable markers of a Class A fire is that its fuel sources leave ash behind when they burn. They are the simplest …
Fire extinguishers with a Class A rating are effective against fires involving paper, wood, textiles, and plastics. The primary chemical used to fight these fires is monoammonium phosphate, because of its ability to smother fires in these types of materials.
What Are The 5 Classes of Fire Extinguishers?
There are four classes of fires: Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics. Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering. Class C: Electrical equipment, appliances and wiring in which the use or a nonconductive extinguishing agent prevents injury from electrical shock.
People Also Ask what is class a fire extinguisher
What type of fire extinguisher would be in a classroom?
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. Other Class K Kitchen – Fires involving combustible cooking liquids such as oils and fats. Other Class D Metals – Fires involving powders, …
Do I have to take a fire extinguisher class?
Portable extinguishers are useful for putting out small fires; however they are not effective against large, spreading fires. In these situations, doors should be closed to contain the fire. Type A: Pressurized water to be used on Class A fire only. Do not use on Class B or C fires; may cause fire spread or electrical shock.
What are the three classes of fire extinguishers?
Understanding fire extinguisher classesClass A extinguishers will put out fires in ordinary combustibles such as wood and paperClass B extinguishers are for use on flammable liquids like grease, gasoline and oilClass C extinguishers are suitable for use only on electrically energized firesClass D extinguishers are designed for use on flammable metals
What are the different classifications of fire extinguishers?
These include:Class A – a fire started with normal combustibles such as wood, paper, and cloth.Class B – a fire started with flammable and combustible liquids and gases such as gasoline and paints.Class C – a fire started by energized electrical equipment such as power transmission cables or wiring.
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TYPES OF FIRE AND FIRE EXTINGUISHERS | WHICH FIRE EXTINGUISHER TO BE USED ON WHICH CLASSES OF FIRE Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher