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Fire Extinguishers
Fire extinguishers are used in homes, schools, businesses and boats as a way to put out a small fire. Fire extinguishers come in many types for different purposes, including portable or fixed systems. This category relates to the science, origins, operation, selection and standards for fire extinguishers.
1,462 Questions
How do fire extinguishers affect the ozone layer?
No, fire works donot harm ozone layer.The substances that are causing ozone layer depletion are freons, CFC's etc..
These are called as ozone-depleting substances (ODS).
Fire is produced by using a spark and a flammable material. The spark must come in contact with the flammable material and this will start fire. The flammable material will determine how quick the fire starts.
Can a person be prosecuted for yelling fire in a crowded building when there is no fire?
Answer
Yes, it's called Reckless Endangerment. When you make an action like that intentionally and knowing that there is no such danger, it encourages an action in the crowd that you would have probable reason to suspect panic. People get injured in panics. To put people in danger knowingly and without justification is illegal in all states. But get hold of a lawyer for specific citations.
Answer
Yes, freedom of speech only pertains to things that do not endanger others. FALSELY yelling "FIRE!" in a crowd will get you arrested. It can cause unwanted panic and people can be injured.
For information about the legal reference to "shouting fire in a crowded theater," see Related Questions, below.
How often should a fire extinguisher be refilled if it hasn't been used?
It depends upon what type of extinguisher it is.
Many refillable types must be internally inspected on one-year intervals. Others only after 3, 5 or 6 years.
NFPA 1 13.6.9 prescribes timetables for inspection, maintenance and recharging of portable fire extinguishers, for reference, although it is not universally adopted.
Is it permissible to store materials or products in front of a fire extinguisher?
No, it is not. In fact, modern electronic monitoring systems for portable fire extinguishers have sensors to detect objects placed too close to the extinguisher location.
How did atomist describe fire?
Some ancient atomists considered fire the original substance. They came to the conclusion that fire could change into all other elements and substances while coming through the universe from the top to bottom.
Could the great Chicago fire have been prevented by a fire extinguisher?
Doubtful. Straw burns really hot and fast; maybe one of the fire extinguishers they use at airports would, but Mrs. O'Leary wouldn't have had one.
What does 2A 40B C mean on fire extinguisher?
The numbers are the extiguishing capacity, the letters the types of fire it will extinguish.
Why does magnesium ribbon continues to burn in carbon dioxide though it is a fire extinguisher?
Because Magnesium, like other highly reactive metals, is much more easily oxidized than most fuels for fires.
The Magnesium can essentially "steal" oxygen from the carbon dioxide
CO2 + 2Mg --> 2MgO + C
Metal fire.
E.g. burning Magnesia, Lithium, Sodium, Copper, Aluminium;
Which type of fire extingisher can be used for a grease fire?
For kitchen use you want a Class K - cooking oils and fats - extinguisher.
What is the Fire of We Didn't Start the Fire?
"The Fire" refers to the frenzied state of the world, often blamed on the young people of the Baby Boom generation - the "we" of the title.
Can one bring a fire extinguisher at workplace?
There shouldn't be a problem with bringing a Fire Extenguisher TO work, considering it has been tested and will be the right type of extenguisher needed at the location.
Types of Extenguishers:
A: Paper, Wood, Combustables
B: Flammable Liquids (Gas, Grease, etc.)
C: Electrical Fires
D: Industrial fires with combustables
K: Kitchen Fires (involving combustable cooking materials)
(I got the types & uses from another answer Imade)
Also please check with employer first though before you do so.
A fire blanket or a non-flammable blanket can help stop a small fire from spreading because when you place then blanket over the fire it cuts off the oxygen to the fire. Cutting this part out of the fire triangle stops the fire from spreading and growing.
Fire triangle = Heat,
Fuel,
Oxygen.
What type of hardboard is masonite board?
Masonite board is a type of hardboard made using the Mason method. It is a type of medium wood fiberboard, but is harder and denser because it is made out of highly compressed wood fibers.
What steps should take for use a extinguisher for class fire A?
The steps to take for using an extinguisher for a Class A fire include pulling the pin, aiming low on the fire, squeezing the trigger, and sweeping from side to side across the fire.
What puts out a fire faster water or a fire extinguisher?
Trick question, if the fire extinguisher is full of water, such as a Class 2A.
However, a fire extinguisher is designed to put out a small fire quicker than anyone can respond with a hose and a water supply. Unfortunately, many fires react violently when water is applied to them, so a different type of fire extinguisher must be used.
What is the best way to clean the powder from a Class A B C fire extinguisher?
If you have a good vacuum cleaner just vac the excess amounts up, then use a damp cloth to get the rest. ABC power is nontoxic so a little bit on your hands or inhaled won't hurt you, I've recharged many thousands of them over the years and I'm still here
Can fire extinguishers pressurized release burns the skin?
Absolutely - most fire extinguishers are either chemical or CO2 based, and any one of them can burn the skin. CO2 kills fires by removing heat, and as such is extremely cold when it comes out of the nozzle - that's why you see ice crystals on it.
The only type that isn't much of a danger is the old water type that has a hose on it that you turn upside down - but it isn't pressurized.
