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 class of fire is wood and paper?
Class A fires
involve ordinary combustible materials, such as cloth, wood, paper, rubber, and many plastics.
What type of fire is burning paper?
Class A Fires
involve common combustibles such as wood, paper, cloth, rubber, trash and plastics.
What do Class C fires include?
The Class C fire is defined as a fire that
uses electrical components and/or energized equipment as its fuel source
. Electrical fires are often fueled by motors, appliances, and electronic transformers. Electrical fires are common in industries that deal with energy or make use of heavy electrically-powered equipment.
What are the four classes of fires?
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.
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 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 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 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.
How can you identify a fire?
- Alarms and detectors. The first sign you might have if there is a fire elsewhere in the building is a fire alarm or detector going off. …
- Smoke. An obvious sign of fire is smoke – as the old adage goes: “there’s no smoke without fire”. …
- Smell. …
- Loud noises. …
- Hot door and door handle.
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.
Which is Class C fire?
A class C fire refers to a fire that involves
flammable gases such
as natural gas, petroleum gas, butane, hydrogen, acetylene or propane. These gases are highly combustible and may cause large scale fires and explosions if mixed with enough oxygen.
What is the best way to extinguish a Class C fire?
Ideally, the first step to extinguish a Class C fire is
to disconnect the equipment responsible for the fire from the power source
. Then, if possible, use a CO or dry powder extinguisher to put the fire out. Refrain from using water or any other chemical that may conduct electricity as it can exacerbate the flames.
What are the 3 classes of fire?
- Class A – fires involving solid materials such as wood, paper or textiles.
- Class B – fires involving flammable liquids such as petrol, diesel or oils.
- Class C – fires involving gases.
- Class D – fires involving metals.
- Class E – fires involving live electrical apparatus. (
What is a Class F fire?
What are Class F fires? Class F fires that are
caused by the ignition of cooking oils and fats
. These fires occur when said oils or fats reach their flash point – in this case, flash point is around 315 °c. … These fires can be extremely dangerous and can spread very quickly.
What are the 5 classes of fire extinguishers?
- Class A Fire Extinguishers. Class A fire extinguishers are safe for use on ordinary combustible fires, like those fueled by paper or wood. …
- Class B Fire Extinguishers. …
- Class C Fire Extinguishers. …
- Class D Fire Extinguishers. …
- Class K Fire Extinguishers.
