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Why are carbon dioxide fire extinguishers more suitable for putting oil and electrical fires than water?
Wiki User
∙ 11y ago
ANYTHING is more suitable than water for those types of fires!
Water usually contains conductive impurities and will cause hazards of electrocution if used on live electrical conductors.
Water will displace, splash, spread and possibly explode if used on a hot oil fire. If water penetrates the surface of a deep oil fire, the liquid water will be superheated (beyond its boiling point) instantly, resulting in a blast of steam as the liquid expands approximately 20,000 times its liquid volume.
Carbon dioxide, while sprayed at -230 degrees F, forms a layer of relatively non-combustible gas upon an electrical fire or oil fire, smothering it. Carbon dioxide will "burn" at about 1,200 F, so it is not useful on all types of fires.
Wiki User
∙ 11y ago
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What are other used for carbon dioxide?
Here are three examples of the uses of carbon dioxide Fire Extinguishers to starve fire of oxygen. Putting the fiz in fizzy drinks and beer. Dry Ice used as a cooling agent.
What are fire extinguishers be used for?
FIRE extinguishers are used to put out fire.
What is the correct substance to use in putting out an electrical fire?
With a dry chemical or CO2 fire extinguisher. Anything not conductive certainly not water.
Why carbon dioxide is better than water for putting out electrical fire and oil?
Beacause fire needs oxygen to stay lit, and water has oxygen in it.
What makes carbon dioxide suitable for putting out fires?
1. (a) · It is denser than air / oxygen, so it displaces the air surrounding the burning object. · It is non-flammable.
What are the classes of Fire extingishers?
Class A fires (paper, wood plastic, etc) can be put out by water, dry chem, or carbon dioxide extinguishers. Class B (flammable liquids like oils and natural gases) can be put out with dry chem and carbon dioxide. Class C (electrical fires) can be put out only by dry chem. Dry chem is the only extinguisher that does all three of them however it is not recommended on Class A fires because it is not useful in putting out sparks.
Carbon dioxide is used for putting out fire-give reason?
2 reasons why carbon dioxide is used in putting fire off
Why do you call carbon dioxide one of the best fire extinguisher?
because you need 3 things to create fire:HeatoxygenfuelIf you take one away then you can't make a fire. So if you had a fire and you wanted to put it out then you could either:Get rid of the heat by cooling it with waterTake away the fuelGet rid of the oxygen by putting Co2 on it. That is why you get fire extinguishers that have foam or carbon dioxide in them.
What does the letter B in B1 fire extinguisher stand for?
B extinguishers are for putting out flammable liquids. These must be carried on boats.
Does putting your electrical devices in rice help?
no!!!
What is in antique fire extinguishers?
Much like modern ones, antique fire extinguishers used a range of extinguishing agents. Carbon tetrachloride, water, and carbon dioxide were most common. Carbon tetrachloride is a liquid that was used in glass grenade-type extinguishers or pumped metal extinguishers. While it is quite effective at putting out fires, it is extremely poisonous, and should be disposed of by professionals. This material fights fires by disrupting the chemical chain reaction. When exposed to high temperatures, it can produce phosgene, an insidious poison gas used during both world wars. Halon extinguishers replaced this type, and have, in turn, been replaced by newer clean agents less harmful to the ozone layer. Water extinguishers were either operated by a hand pump or propelled using a soda-acid system. In the latter, a glass vial containing sulfuric acid was suspended over baking soda. The vial was shattered, spilled, or unplugged by a plunger or other mechanism when the extinguisher was needed. Instructions on this type typically started by telling you to turn the extinguisher upside-down and strike the top against the floor. The sulfuric acid reacted with the baking soda much as vinegar would, only faster and more violently. The resulting carbon-dioxide gas would propel the water, typically 2.5 gallons, out through the hose. This type was removed from service by 1982 because the reaction would often not last long enough to expel all the water and the containers had an unfortunate tendency to explode when used. The similar air pressurized water extinguishers have replaced this type. Carbon dioxide extinguishers remain in use and are easily identified by the horn used to direct the extinguishing agent and the lack of a pressure gauge. These extinguishers contain liquefied carbon dioxide. While carbon dioxide gas mixed with dry ice is what comes out when you use the extinguisher, internally, the agent is a liquid under those pressures. Because carbon dioxide extinguishers in service, it is possible to have tested and refilled an extinguisher of this type. While an extinguisher has an expected service life of 25 years, they are often overbuilt and underused. I recently had serviced two carbon dioxide extinguishers that were manufactured in 1960, and used from then until 1992. Interestingly, even though they were not entirely full, they retained significant pressure even after having been stored for 18 years. Some fire extinguishers are simply filled with compressed Nitrogen, which choke out combustion because it cannot survive in a pure Nitrogen atmosphere. The Simplex-Grinnell UN 1066 is such an extinguisher.
Which bit wise operator is suitable for putting on a particular bit in a number?
bitwise OR is used..
