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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 is an indicator that a fire extinguisher is usable?
Most extinguishers have a pressure gauge which has a Red Zone marked for full pressure. Just look to see if the needle indicated pressure at near the Full mark. Also, most extinguishers are filled with powder. This powder can pack down and cake when not agitated. It is a good idea to turn the extinguisher over, upside down several times. You will feel the powder move about inside the housing.
Why would cylinder 2 3 not fire on a 1992 ford ranger 2.3l 4 cylinder?
Hi,
Offhand, I can think of a couple of possibilities immediately. The first would be a collapsed hydraulic lifter, preventing a valve from opening. Maybe a bent push rod (between the lifter and rocker arm).
If it's a lack of spark, it could be the ignition coil. Chances are that you have one coil for every two cylinders, or the control for the coil not delivering the proper pulse.
The spark plug wires are usually made with a carbon conductor and possibly one or both leads have breaks in them, but that'll usually just cause a weak spark or even the wires could be reversed and firing when they shouldn't.
That's, `off hand`.
Hope it helps,
Cubby
What is the use of a fire axe?
The battle axe was used as a weapon, much like a sword, but requiring somewhat different methods to use and to defend against.
What are the safety precautions in using a fire extinguisher?
the main precaution is to handle fuel with care,if it is a liquid then keep in close container
What is the function of nozzle for fire extinguisher?
The function of a rocket nozzle is to allow the thrust to be focuses and amplified. It also prolongs the burn time and greatly increases performance.
Did ardipithecus ramidus use fire?
No it did not. the first known tools are 2 million years after Ardipithecus Ramidus lived
When did Thomas J. Martin invent his fire extinguisher?
US inventor Thomas J. Martin patented his fire suppression device (a water supply design for hoses and sprinklers) on March 26, 1872.
The handheld fire extinguisher was invented in the UK in 1818 by George William Manby.
Why should you not dial the local fire station in the event of a fire?
how many fire doors between fire and place of safety
Carbon dioxide fire extinguishers are designed for which fuel types?
Carbon dioxide fire extinguishers can be used on Class B, C and E.
When using a fire extinguisher remember to pull the pin aim at the base of the fire squeeze the?
Sweep the fire out. P A S S. pull, aim, squeeze, sweep.
What kind of fire extinguisher is required in diesel fire?
aqueous film forming foam (AFFF), if you have one, although CO2 or dry-chemical fire extinguishers are also rated for combustible liquids, such as diesel.
How often should halon extinguishers be hydrostatically tested?
Normally every 5 years BUT check NFPA and your local code
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!
