- Class A. Class A fires are defined as ordinary combustibles. …
- Class B. A Class B fire uses a flammable liquid or gas as its fuel base. …
- Class C. The Class C fire is defined as a fire that uses electrical components and/or energized equipment as its fuel source. …
- Class D. …
- Class K.
What are Class B fuels?
Class B – Flammable liquids:
gasoline, oil, grease, acetone
.
Any non-metal in a liquid state
, on fire.
What are the three classes of fuels?
| Primary (natural) Secondary (artificial) | Solid fuels wood, coal, peat, dung, etc. coke, charcoal | Liquid fuels petroleum diesel, gasoline, kerosene, LPG, coal tar, naphtha, ethanol | Gaseous fuels natural gas hydrogen, propane, methane, coal gas, water gas, blast furnace gas, coke oven gas, CNG |
|---|
What type of fuel is Class C?
Class C fires are identified by the presence of a burning gas. The most common flammable gases involved in fires are
propane, butane and methane
, and they form the ‘fuel’ aspect of the fire triangle, which is required for the fire to start, spread and continue to burn.
What are the 5 classes of fuels?
Fires can be classified in five different ways depending on the agent that fuels them:
Class A, Class B, Class C, Class D, and Class K
. Each type of fire involves different flammable materials and requires a special approach. In fact, trying to fight a blaze with the wrong method might make the situation worse.
What is Type D fire?
What is a Class D fire? A Class D fire is
characterised by the presence of burning metals
. Only certain metals are flammable and examples of combustible metals include sodium, potassium, uranium, lithium, plutonium and calcium, with the most common Class D fires involve magnesium and titanium.
What is a Type K fire?
A Class K fire extinguisher is
used on fires involving cooking media (fats, grease, and oils)
in commercial cooking sites such as restaurants. These fire extinguishers work on the principle of saponification. … These extinguishers are identified by the letter K.
What are Class B extinguishers?
Class B. Class B fires involve
flammable and combustible liquids such
as gasoline, alcohol, oil-based paints, lacquers. Therefore, extinguishers with a B rating are designed to extinguish fires involving flammable and combustible liquids.
Which one is a Class B fire?
Class B:
Flammable liquids such as alcohol, ether, oil, gasoline and grease
, which are best extinguished by smothering.
What causes Class B fire?
Class B fires are fires which involve
flammable or combustible liquids
. The presence of these liquids, which are also known as hydrocarbon fuels, represent the fuel aspect of the fire triangle (heat, fuel and oxygen) and provide the materials necessary to begin, develop and maintain a fire.
What is the most common fuel?
Gasoline
is the most commonly used U.S. transportation fuel.
What is a fuel class 8?
A
material which is burnt to produce heat
is called a fuel. For Ex:Wood,coal,LPG,Kerosene,petrol,diesel,natural gas,biogas. … The heat energy produced by burning a fuel can be used directly to cook food,for running motor vehicles and factory machines,can be converted into electrical energy at thermal power stations.
What is an example of a Class C fire?
A Class C fire is the burning of flammable gases, which can be very dangerous and highly explosive. These include gases such as
butane and propane in gas canisters
, which you’d expect to find in certain building trades. You will also find these with gas camping stoves and gas barbeques.
What does ABC mean in fire extinguisher?
Dry Chemical Extinguishers come in a variety of types. You may see them labeled: • “DC” short for “dry chem” • “ABC” indicating that
they are designed to extinguish class A,B,and C fires
, or • “BC” indicating that they are designed to extinguish class B and C fires.
What type of fire extinguisher is Class C?
Types of extinguishers that are rated as Class C fire extinguishers include:
Carbon Dioxide
: CO2 extinguishers work by suffocating the fire, removing the oxygen element. They also remove the heat, as the discharge is extremely cold. CO2 fire extinguishers can also be used on Class B fires.
What is the symbol for a Type C fire extinguisher?
Class C extinguishers do not have a numerical rating. The C classification means the extinguishing agent is non-conductive. The geometric symbol indicating Class C is
a blue circle
.
