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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 often should fire extinguishers be tested and examined?
NFPA code requires hydrostatic testing of CO2 and other stored pressure extinguishers at no more than 12 year intervals. Because they are also required to be internally inspected every 5 years, some agencies do hydrostatic at 10 year intervals.
How many fire extinguishers should be in a 5000 square foot building?
It depends on the extinguisher rating. Let's say its rating is 13A.
Multiply the floor area (5000) by .065 and divide that by the rating (13, here).
5000*.065=325
325/13=25 extinguishers
If they are 21A extinguishers, then:
5000*.065=325
325/21=15.48 -> 16 extinguishers (always round up)
If it's just a math question ignore the rest.
If it's a serious question, and not just a mathematical one, then it should be noted that if there are multiple floors those numbers could change. Also, normal fire extinguishers are (some number)A (these are for solid flammables such as wood, paper, textiles......). if they are B instead (the tag on the extinguisher will say and these are for liquids) then the calculation is different.
Go to any fire department and ask a firefighter. They're sure to know the answer (or will at least have quick, easy access to the answers).
Is discharging a fire extinguisher a misdemeanor of a felony?
This will vary depending on your state laws. In my state, to damage someone else's fire fighting equipment is a very serious misdemeanor, and can get you 12 months in jail. Same thing applies to pulling a fire alarm when there is no fire.
Was the fire extinguisher invented in 1872?
No, not really. A patent issued that year was entitled "Fire Extinguisher", issued to one Thomas J. Martin, but it was related exclusively to a systems of pressurized pipes installed in buildings for operating sprinklers (or for other purposes).
Such an invention clearly has no relevance to any "portable fire extinguisher", or any other self-contained fire extinguisher, portable or not.
What is the difference between B1 and B2 fire extinguisher?
The b-2 has about twice the capacity of a b-1.
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 do dry chemical fire extinguishers do to a fire?
Fire needs three things to burn: fuel, oxygen, and heat. Take away one or more of those three things in sufficient quantities, and the fire can no longer burn.
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A dry chemical fire extinguisher sprays a noncombustible, air resistant layer of foam designed to cover the fire's fuel source. When the fuel source (wood, oil, cloth, etc.) is completely and properly smothered, the expelled dry chemical foam isolates the fuel from the surrounding air, and thereby starves the fire of the oxygen it needs to burn.
Fire extinguisher information?
all i know is that the fire extinguisher was made by French C. Hopffer. It was patent in 1722 or 1724. This is all the info i know. I hope it helps!
How does carbon dioxide in the fire extinguisher cylinder work?
Carbon dioxide works by temporarily excluding oxygen from the fire. Good for class B fires, poor for class A fires because as soon as it dissipates, the hot material can reignite.
Can you recycle fire extinguishers?
Yes, and also they can be recharged. Just check with your local fire department and find out if they can have yours recharged. However, I have frequently heard buying a new extenguisher overall is easier.
What does put out the fire while it's still small mean?
It means that if the fire is very little, it can be put out with little effort. The same can be true about any problem. Don't put off taking care of them or they will be a real problem later on.
For example, if a kid is thinking about trying weed, his parents need to sit down and talk to him and explain things (the small fire).
If they don't, he may end up dealing and using some heavy drugs (big fire) and the whole family will be in for a rough time.
Which type of fire extinguisher used for burning combustibles such as paper?
Type A - water, Foam and dry chemical
How do you operate the fire extinguisher?
remember the acronym PASS
P-pull
A-aim
S-Squeeze
S-Sweep
which means you pull out the pin, aim at the fire, squeeze the handle, and spray in a sweeping motion
Can fire extinguisher contents hurt you?
Hi,
In my opinion Fire extinguisher hurts us if it is damaged. So I have one suggestion that you can sell it on Halon.us with a best price.
Thank you.
What is the process of using a fire extinguisher(PASS)?
~ P - Pull the pin. It is there to prevent accidental discharge.
~ A - Aim low at the base of the fire. This is the where the fuel source is.
~ S - Squeeze the lever above the handle. Release to stop the flow. (Some extinguishers have a button instead of a lever)
~ S - Sweep from side to side. Move toward the fire, aiming low at its base. Sweep until all flames are extinguished. Watch for re-igniting. Repeat as necessary. Have site inspected by fire department.
Place any fire extinguisher that has been used on its side on the floor. It will be collected and recharged after the fire scene is secure.
Why does Percy wish he put his dinner in the fire?
Percy gives some prayers and thoughts to his dad, Poseidon. Whoever is reading the Percy Jackson and the Olympians series- you rock!
What can put out a fire instead of water?
Water just suffocates fire, and that's the reason it goes out. Just get another substance that's not flammable, and put it on the fire. Sometimes, if the fire isn't too big, then you can smother it with a blanket. Even bombs can put out fire by exploding and making smoke, which takes away the fire's oxygen. Fire needs oxygen to still be there.
Health risks for breathing in dry fire extinguisher powder?
treatment for breathing in fire extinguisher power
What elements are in a fire extinguisher?
there are 5 classes of fire.
To put out each different class of fire, there is a very wide variety in fire extinguishers. first, you should look at what fire you want to put out and then go from there.
What type of fire extinguishers would be best for a medical office?
A,B,C. In a Mexican hospital, they have a bucket of sand and a large spoon.
What kinds of fire should you not use a water based fire extinguisher on?
Foam spray extinguishers are not recommended for fires involving electricity, but are safer than water if inadvertently sprayed onto live electrical apparatus.
What is used inside an ABC Extinguisher?
An extinguisher rated for Class A, B and C fires would ordinarily be filled with a dry chemical (such as baking soda), and pressurized with a gas.
What rating is a carbon dioxide fire extinguisher?
A carbon dioxide (CO2) fire extinguisher is typically rated as a Class B and Class C extinguisher. It is effective for fires involving flammable liquids and gases, as well as electrical equipment. CO2 extinguishers work by displacing oxygen and cooling the fire, making them suitable for use in environments with sensitive electronic equipment. However, they are not suitable for Class A fires involving ordinary combustibles like wood or paper.
What is the function of fire extinguishers?
The function is to fight a fire which will either extinguish the fire or to fight it long enough to allow safe passage from the location - The main and most important is to use the correct extinguisher and to leave the area if the extinguisher is not impacting on the fire.
