class b fires use the following as fuel
Most of these liquids have a high carbon content and the compounds in them and are highly combustible. It is therefore very important to understand the four different classifications of fuel.
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Fire Class Icon Fire Class Type of Fire Fuel.
. There are four classes of fires. Class B - Flammable liquids. These fires are ones that can be handled with water.
Gasoline oil grease acetone. Answer 1 of 9. But this classification typically does not include fires involving cooking oils or grease.
Using a water or foam fire extinguisher will be just the thing to put it out. For example propane natural gas gasoline and kerosene fires are types of Class B fires. That normally do not leave any embers or residues or very low amounts of residues.
Once the electrical item is removed the fire changes class Class F fires. Flammable and Combustible Gases. Technically Class E doesnt exists however this is used for convenience here.
Class B Fires These types of fires fires involving flammable liquids such as petrol diesel or oils. Class C Fires These types of fires involving gases. Class B materials are fluid in nature which allows them to flow and move.
There are separate standards for the United States Europe and AustraliaThis is used to determine the type of extinguishing agent that can be used for that fire class. Flammable liquids gases and solvents. Class B fire refers to a fire involving flammable liquids such as petroleum gasoline kerosene petrol diesel octane etc paint alcohol solvent oil and tar etc.
These fires usually develop and grow very rapidly. QUESTION 2The fire tetrahedron consists of the following elements. Ordinary solid combustibles such as paper wood cloth and some plastics.
Fires involving solid combustible materials such as wood textiles straw paper coal etc. Class B fires flammable liquids. Flammable liquids gases and solvents.
Flammable liquids gases and solvents. Flammable liquids such as alcohol ether oil gasoline and grease which are best extinguished by smothering. That is why it is important only to use extinguishing agents and methods designed specifically for Class B fires.
That is ordinary combustibles like you paper woodplastic cardboard clothing linen and many other materials. A class B fire is best extinguished by a lowering the temperature of the burning wood or paper b wetting the burning paper or wood c smothering the burning liquid d lowering the temperature of the burning liquid e creating a chain reaction between the molecules of the burning material. Class D Fires These types of fires involving metals.
QUESTION 1 Class B fires involve which of the following fuels. Metals magnesium and sodium. Some plastics are also Class B fire materials.
Class B fires involve flammable and combustible liquids and flammable gases such as Gasoline Fuel oil Paint Butane and Propane. A Class B foam extinguisher is effective on all of the following fuels except one. Hydrogen butane methane ethylene.
Water carbon dioxide and dry chemical will extinguish this. According to the US Fire Administration Class B fires involve ignitable liquids or gases like petroleum grease alcohol paint propane or gasoline. Wood smoke and ignition source.
Solid combustible materials that are not metals. A fire class is a system of categorizing fire with regard to the type of material and fuel for combustionClass letters are often assigned to the different types of fire but these differ between territories. Any non-metal in a liquid state on fire.
Lithium potassium magnesium titanium zirconium. Cooking Oils and Fats. Extension cords space heaters toasters hair dryers.
Such as petrol turpentine or paint Class C fires flammable gases. Class A fires leave an ash after the material has been consumed. The preview shows page 1 - 2 out of 3 pages.
Flammable Liquids andor Gases. Class A - Wood paper cloth trash plastics. Class B fire extinguishers contain a special dry chemical powder typically monoammonium.
It is a simple solution for the simplest fire class the Class A fire. Question 1 7 out of 7 points Class B fires involve which of the following fuels. A water extinguishers purpose is to remove the heat from a fire breaking the fire triangle.
What are the five different classes of fire. Flammable liquids such as gasoline and lighter fluid are the causes of Class B fires and should never have water used on them due to the potential increase of the chemical reaction that fuels this type of fire and the potential splashing of the fuel itself. Wood paper cloth rubber trash and plastics.
Fires caused by combustion of liquids or materials that liquify such as petrol oils fats paints tar ether alcohol stearin and paraffin. In fire classes a Class B fire is a fire in flammable liquids or flammable gases petroleum greases tars oils oil-based paints solvents lacquers or alcohols. Chemicals such as magnesium aluminum or potassium Class E fires electrical equipment.
The use of lighter fluid on a charcoal grill for example creates a Class B fire. The next fire type you need to be aware of is the ones started by flammable liquids. Electrical equipment appliances and wiring in which the use or a nonconductive extinguishing agent prevents injury.
Like LPG hydrogen butane or methane Class D fires combustible metals. Class B Fires. This extinguishing agent helps both to cool and suffocate fires and are also largely used for Class A fires.
The fuel sources of class B fires gases and liquids can be quite volatile and cannot be extinguished by water which will only make the fuel source spread thus spreading the fire. Class E Fires These types of fires involving live electrical apparatus. Water will remove oxygen and the heat source to the fire stopping it in its tracks.
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