Fire, being the oxidation of combustible materials, will be extinguished if deprived of oxygen. If there was no oxygen to start, then the fire could not have started, unless there existed some oxidizer mixed in the combustible fuel. James Pearson.
A fire is deprived of oxygen when an extinguishing agent: a. Adds a chemical reaction. b. Eliminates the fuel source. c. Smothers the fire with a gas, foam or powder. d. … When an extinguishing agent covers and cools the fire source, the fire loses its: a. Oxygen. b. Fuel. c. Heat. d. All of the above. Title: SIP Survey Author: James Phillips …
Section 11: Fire Extinguishers and Fire Safety – Baylor …
A fire needs three elements to survive: oxygen, heat and fuel. This is known as the fire triangle. Fires are extinguished by removing one of the three elements of the triangle. Oxygen. Makes up about 21% if the air that we breathe. To sustain a fire, a …
Oxygen. Combustion begins when a fuel is heated to its _____. ignition point. … Which fire extinguishing agent is best for use on sensitive electronic equipment? Carbon Dioxide. Which compound is added to a water extinguisher to improve penetration of fuel? A wetting agent.
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What happens to fire if there is no oxygen?
Fire, being the oxidation of combustible materials, will be extinguished if deprived of oxygen. If there was no oxygen to start, then the fire could not have started, unless there existed some oxidizer mixed in the combustible fuel.
Are fire extinguishers a first line of Defense?
Fire extinguishers are a first line of defense, only if used properly, and under the right conditions. Fire extinguishers are appropriate for small, incipient stage fires, no bigger than a wastepaper basket.
What is the composition of the gas used in a fire extinguisher?
The commercial system INERGEN use a mixture of 52% Nitrogen, 40% Argon and 8% Carbon Dioxide discharged into the room with the fire, and enough gas mixture is added to the room to achieve a mixture of 67.3% Nitrogen, 12.5% Oxygen, 17% Argon and 3.2% Carbon Dioxide.
Which statement about the numerical rating of a Class K extinguisher is correct?
Polar solvent Which statement about the numerical rating of a Class K extinguisher is correct? There is no numerical rating for a Class K extinguisher. All portable fire extinguishers use which means for expelling their contents? Pressure What residue does a CO2 fire extinguisher leave when discharged? None
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Classifications of Fire Extinguishers Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher