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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
In general what are dry chemical fire extinguishers designated to do?
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.
What is meaning of black fire extinguiser?
Contains carbon dioxide
Others are green (halon gas) or yellow (foam) or red (water)
- usage depends on type of fire
e.g. never use water on oil fire.
What does 8bc mean on a fire extinguisher?
It means you have a fire extinguisher for a Class B fire (flammable liquids), large enough to extinguish a puddle up to 8 square feet, using a chemical that is not conductive and thus safe for a Class C fire (electrically energized), and that it has been rated under UL or other similar standards.
Which types of fire extinguishers are best suited for household use?
The best fire extinguisher would the kind that is well-placed and easy to use. Look for a labeling classification of A:B:C, which indicates that the extinguisher can put out the three main types of fires - ordinary combustibles, flammable liquids, and electrical.
Ground fires. CO2 is heavier than our air and would therefore fall to the ground when released.
why not haylon extinguishers
What class of fires are carbon dioxide fire extinguishers most commonly used on?
Carbon Dioxide based extinguishers are classified by the letters BC and ABC. They are primarily used in laboratories and should not be used in homes or businesses.
What is a good use for a fire proof box?
A fire proof box may be used to store very valuable items and documents to protect them in case of fire in the home or business. For example, deeds, passports and wills may be stored in a fire proof box.
What fires do CO2 extinguishers not put out?
Anything that doesn't need an outside source of oxygen to burn, such as ammonium nitrate + fuel oil (fertiliser bomb).
Realistically, i don'tknow of any.
Magnesium metal burns in the presence of CO2 (undergoes what's called
an oxidation-reduction reaction, the Mg is oxidized to MgO and the carbon
is reduced to solid carbon). This can be readily seen by burning Mg in
dry ice. Trying to use a CO2 extinguisher on burning Mg simply causes it
to burn more. This happened to a British ship during its war over the
Falkland Islands. They tried to put out a fire in the hull after it was hit
using CO2 extinguishers and it simply caused it to keep burning. I would
bet there are other metals that will also react with CO2.
What is Darlee patio furniture and how does it differentiate from normal furniture?
The big problem with any grill under a covered patio is the flare up from a grease fire. It can easily end up setting the patio on fire depending on the type of cover and the size of the flare-up. If you plan on using a grill under a patio, you should have a fire extinguisher handy just in case.
Which fire extinguisher supplier does a firestation use?
There are two main types of fire extinguishers: stored pressure and cartridge-operated. In stored pressure units, the expellant is stored in the same chamber as the firefighting agent itself. Depending on the agent used, different propellants are used. With dry chemical extinguishers, nitrogen is typically used; water and foam extinguishers typically use air. Stored pressure fire extinguishers are the most common type
Does anyone know anything about General Fire Extinguisher Corp?
Founded in the early 1900's as General Belt and Hose. Later changed name to General Fire Truck and finally to General Fire Extinguisher.
I'm sure someone does.
What are the locations of fire extinguishers and how to operate fire extinguishers in the lab?
The best location to put the fire extinguisher is inside the lab, near the door so that if the fire extinguisher is used but does not put out the fire, you can still escape via the door.
Never allow the fire to come between you and a safe means of escape.
What happens to the particles in carbon dioxide gas when compressed in a fire extinguisher?
The gas becomes a liquid inside the extinguisher. When the extinguisher is operated, the liquid changes back to a gas when released.
everyone onboard
Gasoline because it makes it bigger and more people can ger inguerd
What the acronym PASS means and when it is used?
Among other tings, it is a reminder of how to use a fire extinguisher. Pull the pin. Aim at the bottom of the fire. Squeeze the handle hard, Sweep the spray across the fire.
Where can someone purchase a fire extinguisher sign?
The safety company Brady sells several types of fire extinguisher signs online as well as the store Staples. If looking for a more vintage sign then eBay is a good website to find them on.
Why blowing or fanning a small fire makes the fire stronger?
All fires need three things to burn: fuel, heat and oxygen. When you fan a small fire, you are getting more oxygen to where the fuel and heat are.
What size is a B-1 fire extinguisher?
A UL-listed 5-B:C extinguisher, with 2 pounds of dry chemical, may provide the basis for a B-1 extinguisher, but it must ALSO conform to USCG-approvals (proper corrosion protection, labeling, mounting bracket, etc).
