What are Class A and B fires?
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.
What is fire ABCD?
If you plan to buy one extinguisher, a multi-purpose dry chemical labeled ABC puts out most types of fires – wood, paper, and cloth, flammable liquid, or electrical fires. If you buy more than one, you might want to get a BC for the kitchen, an A for the living room, and an ABC for the basement and garage.
What are fire stages?
Compartment fire development can be described as being comprised of four stages: incipient, growth, fully developed and decay (see Figure 1).
What is ABC powder in fire extinguisher?
At USC, “ABC” fire extinguishers are filled with a fine yellow powder. The greatest portion of this powder is composed of monoammonium phosphate. Nitrogen is used to pressurize the extinguishers. ABC extinguishers are red and range in size from 5 lbs to 20 lbs on campus.
What is the best defense against fire?
As always, the best defense against a fire is to be prepared. Take a moment to look at your fire extinguisher.
What are the 3 methods of extinguishing a fire?
All fires can be extinguished by cooling, smothering, starving or by interrupting the combustion process to extinguish the fire. One of the most common methods of extinguishing a fire is by cooling with water.