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What class fire is a coal fire?
A coal fire is considered a Class A fire, which involves ordinary combustible materials like wood, paper, cloth, and plastics. Class A fires can be extinguished using water, foam, or dry chemical extinguishers.
What are fire extinguishers be used for?
FIRE extinguishers are used to put out fire.
What class of fire involves the burning of wood and paper?
Class A fires involve the burning of wood, paper, cloth, and other ordinary combustibles. These fires can typically be extinguished with water, foam, or dry chemical extinguishers.
What do fire extinguishers have inside?
A cold smoke. A really cold chemical.
Why do you have fire extinguishers in schools hospitals etc?
Portable fire extinguishers are provided in case there is a small fire that can be quickly extinguished, while occupants are being moved away from the fire and out of the building, if necessary. Some fire extinguishers are automatic, such as those used in commercial grease-duct hoods over cooking appliances, and activate to stop the fire even if nobody is there. Others are manual and may come in different types for different fires (e.g., A, B, C, D, K).
What are the contents of a multipurpose fire extinguisher?
Multi-purpose fire extinguishers, like ABC, are typically dry chemical.
How do you put out a fire on an airplane?
There will be fire extinguishers located in the cockpit, at the stewards stations, and in the galley. Pull the pin, squeeze the trigger, and aim for the base of the flame, sweeping back and forth until ALL flames are extinguished.
Multipurpose dry chemical extinguishers are effective on all classes except?
D and K fire
How is an extinguished fire different from a raging one?
An Extinguished fire is put out and a raging fire is continuing to burn .
What is the difference between dry chemical and hcfc 123 fire extinguisher?
Dry chemical fire extinguishers use a powder substance, such as sodium bicarbonate or monoammonium phosphate, to smother the fire and interrupt the chemical reaction. HCFC 123 fire extinguishers contain a clean agent called HFC-123, which is a halocarbon compound that extinguishes fires by removing heat and interrupting the chemical reaction. The main difference is in the extinguishing agent used, with dry chemical extinguishers being more versatile but leaving residue, while HCFC 123 extinguishers are cleaner and more suitable for sensitive equipment.
Is nitrogen in fire extinguishers?
Nitrogen can be used in fire extinguishers as gas propellant.
What are dry chemical fire extinguishers to do?
They form a barrier on the surface of the burning substance - which melts to form an airtight layer - starving the fire of oxygen. Smother the fire
