There are 5 classes of fire (A, B, C, D and K). Each class of fire refers to the burning of specific materials. Class A fires, those which involve the burning of ordinary combustibles, are best extinguished with water, though in some circumstances water can work on other classes of fire. The different types of fire need to be treated different.
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. Type ABC: Dry chemical effective on all classes of fires Type BC: Carbon dioxide to be used on chemical or electrical fires Type K: Used in kitchens on grease fires. Locations ABC fire extinguishers are located throughout the Medical Centers in corridors.
The 5 Classes of Fires And Which Fire Extinguisher To Use
Class A fires are the easiest to put out and you can use a water or foam extinguisher. 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 …
People Also Ask which class of fire can water extinguish
What class of Fire is best extinguished with water?
Class A fires, those which involve the burning of ordinary combustibles, are best extinguished with water, though in some circumstances water can work on other classes of fire. The different types of fire need to be treated different. There are certain ways of handling and extinguishing each class of fire. Here’s what you need to know about this.
What type of fire can be put out with water?
If you can somehow cover the fire so that no more air can get to it, you can remove the oxygen and the fire goes out. These are the only methods to successfully extinguish a fire and each class of fire is extinguished in a different manner. What Type Of Fire Can Be Put Out Safely With Water? You can use water to safely extinguish a class A fire.
Do fire extinguishers stop water from spreading?
Water will actually help the fire spread, as it will spread the liquid that’s fueling it. Instead, you need a fire extinguisher that uses foam, powder, or carbon dioxide. These will cut off the oxygen supply to stop the fire from spreading. Having one of these to hand near any flammable liquids is a must.
Can you use water to put out a Class K fire?
These are rare because most metals require high temperatures to ignite but alkali metals like aluminum, potassium, and magnesium can ignite when exposed to water or air. You therefore, cannot use water on these fires. Class K fires involve cooking liquids and fats and sometimes can be grouped together with Class B fires.
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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