Fire Extinguishers

False, depend of the case

$200

A" class - Fires that result from ordinary combustibles, such as wood and paper.

"B" class - Fires that result from combustible liquids, such as kerosene, gasoline, oil, and grease.

"C" class - Fires of an electrical nature. These result from the combustion of circuit breakers, wires, outlets, and other electrical devices and equipment. Extinguishers designed to handle this type of fire cannot use chemicals that are conductive since conductive agents increase the risk of electric shock to the operator.

"D" class - Fires resulting from combustible metals, such as sodium, potassium, titanium, and magnesium. These fires occur mostly in chemical laboratories and are rare in most other environments.

"K" class - These types of fires consume vegetable oils, animal fats, and generally happen in kitchens.

no extreme cold can not put a fire out, but extreme humidity can because of all the moisture.

you dont say anything just walk away and leave them do what ever they are doing or what ever they want to do

cause it does

no cuz hcl is corrosive it might relight the fire even more

twigs are small. this gives twigs a high ratio of oxygen- to- fuel. this carburation effect, as long as the twig is dry, will permit the twig to flare up and burn up quickly and reach high combustion temperature more rapidly than a large specimen of wood, as the twig has relatively more surface area exposed to the air. so it will briefly add heat and flames to any existing fire.

Extremely cold, and displaces oxygen from the air.

GIVE ME THE ANWSER ALREADY

It smothers AND cools because the extinguishing agent is made up of foam and water. The main reason for the foam is to keep vapors from rising from the flammable liquid and the water is naturally cool.

no they do not. they contain carbon dioxide, potassium bromide, and chalk. nothing in that is harmful.

The letter indicate the types of fire the extinguisher will put out. They are,

A: Common combustibles: Wood, Paper, Cloth

B: Flammable Combustibles: Gas, Propane & Solvents

C: Electrical: Wires & Motors

D: Combustibles: Magnesium & lithium

K: Cooking Media: Oils

No, the carbon dioxide needs to be compressed before hand, otherwise it'd just escape from the nozzle when it's released - as opposed to being pressurised, which is what you want.

A pure CO2 fire extinguisher is recharged by pouring in liquid C02. It usually takes a professional refilling company to determine the proper amount and to pour it in safely. Dry ice, crushed to get it into the extinguisher tank, can also be used.

Yes, fire exstinguisher needs to be carried in the cab

Usually by cutting off the air to the fire. They either blanket the fire under a layer of CO2 gas, or spray a powder that cuts off the air.

A water-type or water-based foam type of extinguisher should not be used on an electrical fire because water and foam are electrical conductors and could result in electrocution of the person using the extinguisher or anyone stepping in the water.

Correct as they may not displace enough O2 to put the fire out-causing it to reignite.

This is a fire in its beginning stage, that which can be controlled with a portable fire supression device such as a fire extinguisher or small water hose system.

Depending upon what type of extinguisher, there may be both.

When water is used, it is a physical change, as water is converted to steam and the heat is removed from the fire.

When a dry chemical is used, it is a physical change as the powder cools the fire, but also a chemical change that affects the speed of combustion.

A foam-type extinguisher physically cools the fire but, more importantly, establishes a chemical layer of oxygen-starved foam on the surface of flaming liquids.

A CO2 extinguisher cools a fire (at minus 130 F), but also pushes out the oxygen-rich air and replaces it with CO2 gas, which does not burn well at normal temperatures.

For a Class D extinguisher, related to flammable metals, it is typically a chemical change that converts the surface of the burning metal to something inert.

Similarly, a Class K (or F) kitchen extinguisher converts the surface of burning vegetable oils to a soapy substance that no longer burns.

You would only heat the rock. Heated rocks are used in some spas & put on your spine.

Yes, primarily to fish. The retardant is a fertilizer slurry. When dropped in water, the fertilizer turns to ammonia, which is toxic to fish and some other aquatic organisms. The degree of toxicity depends upon the dilution factor. Retardant drops in small streams have been known to kill trout for several miles downstream.

Unless there is local fire code to the contrary, there is no requirement for any fire extinguishers in a one- or two-family dwelling, under National Fire Code.

If the landlord wants you to have one, it will be installed by the landlord; if you want one for your own use, you can buy one and install it with permission of the landlord.