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argon and tetrafluoromethane
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Should a dry chemical extinguisher or a pressure water extinguisher be used on an electrical fire?
You would not want to use a pressure water extinguisher on any electrical fire due to the possibility of electricity being conducted through the water and injuring someone. A CO2, dry chemical or "clean agent" (e.g., "Halogenated") extinguisher would be a better choice for an electrical fire, knowing that dry chemical powder will make quite a mess.
Which type of fire extinguisher used for burning combustibles such as paper?
Type A - water, Foam and dry chemical
What type of fire extinguisher is used on a gasoline fire?
You need to use a Class B extinguisher on flammable liquids.
What can be used to put out a fire?
Fire extinguisher
What is class c fire extinguisher is used for?
A class C fire extinguisher is used for electrical fires. A all purpose A, B, C extinguisher can also be used.
Is there a rating on a fire extinguisher?
Yes. They are rated for the type of fire they can be used against, and the capacity of the extinguisher.
What fire extinguisher do you use for a car fire?
A car extinguisher may be necessary for putting out several different types of fires, so it should be a Class A:B:C extinguisher, normally dry powder. For an irreplaceable classic, one might consider a CO2 or a "clean agent" extinguisher, to avoid the damage potential of dry powder chemical extinguishers.
If only one of the three pictographs on a fire extinguisher is highlighted the fire extinguisher can be used on?
Only the type of fire that is highlighted
How would you know how to use a fire extinguisher and what types of fire it may be used?
Read the label on the extinguisher.
How would you know how to use a fire extinguisher and on what types of fire would it be used?
Read the label on the extinguisher.
Which class of fire extinguisher should be used when a hot plate overheats and catches on fire?
Electrical fire is Class C as long as the electricity is on, so use a BC or ABC extinguisher, either dry chemical, carbon dioxide gas or halogenated gas.
Does a fire extinguisher cause a chemical or physical change?
Depending upon what type of extinguisher, there may be both. When water is used, it is a physical change, as water is converted to steam and the heat is removed from the fire. When a dry chemical is used, it is a physical change as the powder cools the fire, but also a chemical change that affects the speed of combustion. A foam-type extinguisher physically cools the fire but, more importantly, establishes a chemical layer of oxygen-starved foam on the surface of flaming liquids. A CO2 extinguisher cools a fire (at minus 130 F), but also pushes out the oxygen-rich air and replaces it with CO2 gas, which does not burn well at normal temperatures. For a Class D extinguisher, related to flammable metals, it is typically a chemical change that converts the surface of the burning metal to something inert. Similarly, a Class K (or F) kitchen extinguisher converts the surface of burning vegetable oils to a soapy substance that no longer burns.
