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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
What are the properties of carbon dioxide in a fire extinguishers?
The property used is its heaviness than air. CO2 being heavier than air, settles over the flames and cuts off contact with O2. Fire cannot continue without the oxygen supply and is extinguished.
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.
How to fill nitrogen to fire extinguisher from cylinder?
There is equipment that connects from the gas tank to the fire extinguisher, and is deigned to keep from overpressurizing the extinguisher. Do NOT try this without the equipment.
What are Class b fire extinguishers are best for what?
Burning liquids such as gasoline, oil, paint, etc.
What do you mean by hose stream on a fire extinguisher?
When a liquid fire extinguisher has a hose, the stream of liquid coming from the hose is called the "hose stream" and can be directed at the base of the flames.
What type of fire will be put out by a b-1 fire extinguisher?
B-1 is for a Class B fire, that is, flammable/combustible liquids and gases.
What are the classes of fires?
Class A- ordinary combustibles, such as wood or paper- leaves an Ash
Class B- liquids- such as oil, gasoline. Liquids Boil
Class C- has a live electrical Current
Class D- metals, such as magnesium. Metals can Dent
Class K- a Kitchen fire, such as burning fat.
What is a 'Class A' fire extinguisher?
A class B fire extinguisher that is rated for use on flammable liquids such as gasoline, its related hydrocarbon fuels, solvents, alcohols, ethers, and esters, who are also known as polar and non-polar fuels. However, the B classification of fires till now required different types extinguishing medias in order to be able to fight the full range of B fires. For example, the most prevalent and available type of fire extinguisher displaying a B rating is the Dry Chemical Powder extinguisher. This type of extinguisher is not very efficient on polar fuels nor is it recommended for use on grease and cooking media (vegetable oils), the K-Type fire. Therefore requiring the end user to employ other types of extinguishers such as an AR-AFFF foam extinguisher for polar fuels and a Wet-Chem, K-Rated extinguisher in order to provide total class B protection.
With the advent of the new industry changing FFC (Fire Fighting Catalyst) Technology and most advanced "Green", Non-Toxic, Non-Irritant, Non-Agressive, liquid and compact FireStopper® fire extinguisher line, the consumer has available an all fire class (A-B-C-D-K) Rated and Listed highly effective safety product.
Why inflammable co2 is used in fire extinguisher?
Because CO2 does not burn. It is a heavy gas and when it is spread over the burning materials it prevents oxygen reaching the fire and so the fire stops.
Can you explain recoverable depreciation after a fire?
I haven't any idea about the recoverability of the fire but I know a site named halon.us which buy damaged extnguishers from other.
Can using the wrong type of fire extinguisher be life threatening?
Yes. Depending on the type of fire and the type of extinguisher, you may simply spread the fire (which is bad enough) or you might actually cause more damage (trying to put out a sodium fire with a water based extinguisher, for example).
How many fire extinguishers are required in a sprinklered chapel building?
The number of extinguishers will be based on the size of the building as well as the type, location and size of any specific hazards that may be present such as a commercial kitchen or storage for flammable liquids.
What is one coast guard requirement for fire extinguishers for boating?
Must be maintained in a fully charged usable condition
What are the Four Classes of Fires based on Portable Fire extinguishers?
There are actually FIVE classes of fires now defined for purpose of determining the type of extinguisher to use: A, B, C, D and K.
What should you do if you inhale the contents from a fire extinguisher and start coughing?
Routes of entry:
Inhalation: YES; may be irritant to the respiratory tract.
Eye contact: YES; mildly irritant for a short period.
Skin contact: YES; may be mildly irritating.
Ingestion: NOT an expected route of entry.
Signs and symptoms of overexposure: Acute: Transient cough, shortness
of breath, irritation of airways.
Chronic: This product is not known to cause chronic illness.
Medical conditions generally aggravated by exposure:
Asthma, emphysema, bronchitis or other respiratory illness.
Emergency and first aid procedures:
Eye contact: Flush with large amounts of water for at least 15
minutes. If irritation
persists, seek medical attention.
Skin contact: Wash with soap and water. If irritation persists, seek
medical attention.
Inhalation: Move victim to fresh air. Seek medical attention if
discomfort continues.
Ingestion: Rinse mouth, drink large amounts of water and induce vomiting. Seek
medical help.
Here's the Url with info
http://www.kiddeus.com/BCExtinguisher.rsf
Where does phoenix fire rank in fire depts?
Excellent equipment. State of the art communication system (CAD). 4 man constant manning. Downtown 5 man trucks. A highly motivated workforce. This translates into overall excellent response times which provides great customer service.
Where should a fire extinguisher be in kitchen?
Ideally, within easy reach, but not too near a large heat source, like a gas hob or oven. If in doubt, check the fire extinguisher's documentation.
Portable fire extinguishers are labeled for what purpose?
to put out fire
In other words, because there are different types of fires there are different types of fire extinguishers. The label will tell you what type of fire it is designed for.
How do you refill 6kg abc dry powder portable extinguisher?
Most container gas companies can either perform this task for you, or can direct you to a company that can.
How do you fight a electrical transformer fire?
Use either a dry powder extinguisher or CO2. NEVER use water !
Can Halon fire extinguishers be used on electrical equipment?
Yes, Halon fire extinguishers can be used on electrical equipment- and in fact are often recommended.
What does the b indicate on a b1 fire extinguisher?
The B determines the type of fire that can be extinguished, and in this case it would be flammable liquids such as gasoline, grease, oil, diesel fuel, and kerosene.
The number indicates the approximate number of square feet the unit can extinguish, so a B-1 would be a relatively small extinguisher.
Which NFPA standard is for fire extinguishers?
NFPA 10 Standard for Portable Fire Extinguishers deals with them, among others.
NFPA 1 National Fire Code tells you how many of each type of extinguisher you generally need. Other specific standards refer to specific types of hazards.
