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 extrinsic eye muscle is innervated by the trochlear nerve? oculomotor nerve.

Which extinguisher is a class AB & C type?

Dry powder extinguishers These are suitable for fighting burning solids, liquids and gases (Class A, B and C fires). Specialist powder extinguishers are designed to tackle type D fires involving combustible metals such as lithium, magnesium, or aluminium.

What's in a Class B fire extinguisher?

Because of this, Class A fire extinguishers use water, while Class B fire extinguishers use dry chemicals (foam or powder), such as aqueous film-forming foam, multi-purpose dry chemicals such as ammonium phosphate, and halogenated agents (such as Halon 1301 and Halon 1211) or highly pressurized carbon dioxide.

Which fire is Class B fire?

Class B are flammable liquids fires such as fuel, gasoline, kerosene, white-spirit… Class B are flammable gases fires such as ethanol, propane, butane, acetylene, hydrogen, methane…

What is AB II fire extinguisher?

B-II Extinguishers are USCG approved and meet the need for a Type B, Size 2 USCG approved Fire Extinguisher. Amerex B-II Fire Extinguishers must be: Dry Chemical, ABC, or Purple K: 10 lbs or larger. Carbon Dioxide (Co2): 15 lbs or larger.

What are class AB and C fires?

Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering. Class C: Electrical equipment, appliances and wiring in which the use or a nonconductive extinguishing agent prevents injury from electrical shock. Don’t use water.

What is a Type B 1 fire extinguisher?

B-1 Extinguishers are USCG approved and meet the need for a Type B, Size 1 USCG approved Fire Extinguisher. Amerex B-I Fire Extinguishers must be: Dry Chemical, ABC, or Purple K: 2 lbs or larger. Carbon Dioxide (Co2): 5 lbs or larger. Halon: 2.5 lbs or larger.

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.
How do you use a Class B fire extinguisher?

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.

Is methanol a Class B fire?

The U.S. Department of Transportation regulates methanol as a Class 3 Flammable Liquid, with a subsidiary risk as a Class 6.1 Toxic Material. … To prevent fires keep open flames, sparks and oxidants away from methanol.

What is a B1 or B2 fire extinguisher?

CLASS C: Electrical fires You can use water, or a Class A fire extinguisher, to put out this type of fire. Class B fires, on the other hand, have a flammable liquid fuel source, like gasoline. … The number after the B, for example a B1 or B2 extinguisher, indicates the capacity of the extinguisher.

What is a USCG approved fire extinguisher?

Coast Guard Approved extinguishers are hand-portable, either B-I or B-II classification and have a specific marine type mounting bracket. It is recommended the extinguishers be mounted in a readily accessible position.

What kind of fire extinguisher do you need for a boat?

The Coast Guard requires boats to have at least one B-1 marine fire extinguisher on board. Depending on the size of your boat you may need more than one. Boats less than 26′ have to have at least one B-1 fire extinguisher on board. Boats 26′-40′ need to have at least two B-1 fire extinguishers on board.

What are Class C extinguishers?

Class C. Class C fires involve energized electrical equipment. Extinguishers with a C rating are designed for use with fires involving energized electrical equipment.

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 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 is a Class B fire rating?

Fire extinguishers with a Class B rating are effective against flammable liquid fires. These can be fires where cooking liquids, oil, gasoline, kerosene, or paint have become ignited. Two commonly used chemicals are effective in fighting these types of fires.

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 are the 5 different classes of fire?

Fire is divided into five classes (A, B, C, D, and K) that are primarily based on the fuel that is burning. This classification system helps to assess hazards and determine the most effective type of extinguishing agent.

What are the 5 different 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. In order to meet the current regulations, it is important for you to have the exact type of fire extinguisher that is needed for your premises.

What are the five 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.
Where should a Class B fire extinguisher be placed?

  • Class A: Locations that contain ordinary combustible materials, including offices, classrooms, and assembly halls.
  • Class B: Workshops, storage areas, garages, warehouses, or service and manufacturing areas that contain flammable liquids or gasses.
What class of fire is kerosene?

CLASS B. Flammable or combustible liquids or gases; such as gasoline, kerosene, paint, paint thinners and propane.

What are the classes of fire?

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.

How do you extinguish methanol?

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

What is the difference between 5BC and 10bc fire extinguisher?

For instance, the most commonly carried unit, the 10 BC, which contains 2.75 pounds of dry chemical fire suppressant, is rated “twice as effective” as the 5BC, which has two pounds of chemical, in fighting fuel and/or electrical fires.

Where are Amerex fire extinguishers made?

Based in Trussville, Alabama, Amerex makes hand portable and wheeled fire extinguishers for commercial and industrial environments, as well as fire and explosion suppression vehicle systems for defense applications.

Why are marine fire extinguishers white?

Fights flammable liquid and electrical fires. The white color of the extinguisher matches typical marine coloring. Durable metal head designed to meet demanding needs. If used, the marine fire extinguisher can be recharged by a certified professional.

What class is PWC?

EXAMINING PERSONAL WATERCRAFT The PWC is classified as a “Class A” Inboard Boat (a boat less than 16 feet in length) by the U.S. Coast Guard. They are designed to carry from one to three persons, and to be operated by a person sitting, standing, or kneeling ON the watercraft.

Do US Coast Guard considers personal watercraft what kind of boat?

In fact, the U.S. Coast Guard considers personal watercraft Class A vessels, which means all safety equipment and operation laws that apply to boat under 16 feet also apply to a PWC.

Can I use an ABC extinguisher on a boat?

Every boat should carry at least one extinguisher capable of putting out a class A, B or C fire (ABC extinguisher). The Coast Guard requires that all extinguishers used on boats must be U.S. Coast Guard-approved and rated for marine use. … Boats larger than 40 feet but less than 65 feet must have three.

Which type of fire extinguisher is required on a motorized pleasure craft?

Pleasure craft may be required by the Small Vessel Regulations to carry a 5B:C or a 10B:C fire extinguisher, depending upon the type and length of the boat, and the equipment on board. PWCs must have one 5B:C fire extinguisher on board unless everyone on board is wearing a lifejacket or PFD.