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.
When a Class B fire sparks, extinguish it by smothering the flames. Oppressing the fire eliminates the oxygen feeding the flames, and, …
What is a Class B Fire? – Definition from Safeopedia
A small class B fire can also be extinguished by multipurpose dry chemical powder or by water mist that can effectively cool the fire. Re-ignition may also occur if the sources of heating the substance (above the ignition temperature) are not removed. One should never use water stream on a class B fire as it helps to spread the fire since these liquids are lighter than …
It is important to use a proper fire extinguisher on Class B fires. Using a Class A fire extinguisher on a Class B fire can actually make the …
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What is the most effective extinguishing agent against a Class B fire?
The most effective extinguishing agent against a class B fire is foam. However, the type of foam to be used depends on whether it is water soluble or hydrocarbon.
What is an example of a Class B fire?
Examples of such materials include cloth, paper, plastic, rubber, trash, wood, and other things that can catch on fire easily if they are by a heat source. This is the type of fire commonly thought of when it comes to residential fires. Class B fires concern flammable liquids.
What are the different classes of fire extinguishers?
1 Classes of Fires. Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics. … 2 Fire Extinguishers. Fire extinguishers are classified as types A, ABC, BC or K. … 3 PASS. To request fire extinguisher training for your department, please contact Ambulatory Safety.
How do you extinguish a Class C fire?
Extinguish a Class C fire by shutting off the electrical power, which serves as the fuel source for the electrical fire. Non-conductive chemicals like carbon dioxide should also be used to suppress the flames.
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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