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.
What Is in a Class B fire extinguisher?
CO2: A
carbon dioxide fire
extinguisher works on a Class B fire by expelling CO2 to suffocate the fire, removing the oxygen necessary to keep it burning. … The foam agent works on Class B fires by separating the fuel and the oxygen by creating a seal on the surface of the flammable liquid.
What type of fire extinguisher is used for combustible metals?
If so, you will need to have a
type D fire extinguisher
. In the event of a fire, types A, B, and C fire extinguishing agents will react with combustible metals. Therefore, unique agents such as potassium and sodium are used in type D fire extinguishers to put out fires with combustible metals.
What are the 4 types of fire extinguishers?
- Class A extinguishers will put out fires in ordinary combustibles such as wood and paper.
- Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.
What is a Class K fire extinguisher used for?
Class K fire extinguishers are more effective in
extinguishing cooking fires
. They use wet chemical agents with a greater firefighting and cooling effect for this type of hazard. The applicable National Fire Protection Association (NFPA) standard is NFPA 10 – Standard for Portable Fire Extinguishers.
What do you use on a Class B fire?
To extinguish a Class B fire, you want to cut off the oxygen. You can use carbon dioxide gas to dilute the oxygen available and stop the burning. Smothering the fire with
bicarbonate (baking soda)
or potassium carbonate will also work.
Which is an example of a Class B fire?
Class B:
Flammable liquids such as alcohol, ether, oil, gasoline and grease
, which are best extinguished by smothering.
What are the 5 types of fire extinguishers?
When it comes to the types of fire extinguishers, there are five main types including
wet chemical, CO2, dry powder, foam and 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.
Which fire extinguisher is used to put off Class C type of fire?
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 are the different sizes of fire extinguishers?
- 2-A:10B:C – 4 lb.
- 3-A:40B:C – 5 lb.
- 4-A:60B:C – 10 lb.
- 10-A:80B:C – 20 lb.
What type of fire extinguisher do I need?
The National Fire Protection Association (NFPA) provides minimum recommendations for the home: Primary Fire Extinguishers – For your main home protection, install a
2-A:10-B:C rated extinguisher
on every level of your home – no more than 40 feet apart. Include all locations where a fire may start.
What is fire Class C?
Class C. Class C fires involve
energized electrical equipment
. Extinguishers with a C rating are designed for use with fires involving energized electrical equipment.
Do you need class K fire extinguisher?
Cal OSHA mandates different distribution requirements within the building for each extinguisher class. Class A and D fire extinguishers must be supplied every 75 feet or less; Class B extinguishers every 50 feet or less; Class K
extinguishers are required every 30 feet
.
Can Class K fire extinguisher be used on any fire?
A Class C fire extinguisher is used on fires that involve live electrical equipment, which require the use of electrically nonconductive extinguishing agents. … A Class K fire extinguisher is
used on fires involving cooking media (fats, grease, and oils) in commercial cooking sites such as restaurants
.
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.
