Class A fires have a solid combustible fuel source like wood or paper. You can use water, or a Class A fire extinguisher, to put out this type of fire.
What type of fire can be put out safely with water quizlet?
Water is an excellent extinguishing agent suitable for Class A fires (ordinary combustibles) only. It cools the fuel below its kindling temperature. Never use on electrical equipment or for fires in cooking media. The water could flash to steam as a result of high temperatures and cause serious burns (96).
Is it safe to put fire out with water?
Do NOT pour water on the fire ! Since oil and water do not mix, pouring water can cause the oil to splash and spread the fire even worse. In fact, the vaporizing water can also carry grease particles in it, which can also spread the fire. 4.
Which fires Cannot be put out by water?
Class B fires involve flammable liquids rather than solids. Common causes for these fires include gasoline, alcohol, and oil. It is important to note that despite involving liquid, this Class does not include cooking fires. Water does not extinguish Class B fires and can spread the flammable liquid, making it worse.
What is the most effective method of extinguishing an electrical fire?
The best way to put out an electrical fire is with a fire extinguisher . If you don’t have one, remember these tips. 1. You should never throw water on an electrical fire because water conducts electricity and you could be electrocuted.
What type of fire is Class A?
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 the quickest way to put out a fire?
- If the fire is small, cover the pan with a lid and turn off the burner.
- Throw lots of baking soda or salt on it. Never use flour, which can explode or make the fire worse.
- Smother the fire with a wet towel or other large wet cloth.
- Use a fire extinguisher.
Will flour put out a fire?
Do NOT use flour on a grease fire .
While sometimes baking soda can extinguish a small grease fire (though not if the fire is too overwhelming), flour cannot and should not be used. Due to chemical risk of contaminating your kitchen, putting out a grease fire with your fire extinguisher should be the last resort.
Does salt put out fire?
Salt will smother the fire almost as well as covering it with a lid , while baking soda chemically extinguishes it. But you’ll need a lot of each–toss on handfuls with abandon until the flame subsides. Avoid using flour or baking powder, which can explode in the flames instead of snuffing them out.
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.
What are the 4 types of fire?
- Class A Fires. involve common combustibles such as wood, paper, cloth, rubber, trash and plastics.
- Class B Fires. involve flammable liquids, solvents, oil, gasoline, paints, lacquers and other oil-based products.
- Class C Fires. ...
- Class D Fires. ...
- Class K Fires.
What is a Type C fire?
Class C fires involve energized electrical equipment . Extinguishers with a C rating are designed for use with fires involving energized electrical equipment.
Can you use sand to put out an electrical fire?
You can use sand or dirt to put out small fires . ... Never use water on an electrical fire, because water will conduct electricity and deliver a potentially deadly shock. Before attempting to put out an electrical fire, dry your hands and shut off the breaker if it’s not too close to the fire.
How do you fight an electrical fire?
- Disconnect the Electricity. First, disconnect the electricity to the source of the fire. ...
- Use Baking Soda for Small Electrical Fires. If the fire began in an appliance or an overloaded cord, once you’ve unplugged the power source, toss baking soda over the flames. ...
- Never Use Water While the Power Is On.
Which type of fire extinguisher is used in case of electrical fire?
In the case of electrical fires, also known as energized electrical fires, a class C fire extinguisher is needed to put it out. If this kind of fire occurs the source of electricity must be identified and shut off because the electricity itself will provide the fire with a constant source of ignition.
What is a Type D fire?
Class D fires only involving combustible metals – magnesium, sodium (spills and in depth), potassium, sodium-potassium alloys uranium, and powdered aluminum.
