Firefighters

When the vapor pressure equals atmospheric pressure at the surface of a liquid, it has reached its boiling point. This is the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on it by the surrounding atmosphere, causing the liquid to change into vapor.

A fire needs oxygen to continue to burn so throwing a thick cover such as a blanket made from very thick cotton would cut off the oxygen supply, actually more effective and less messy for small fires than water is.

Oxygen is not a fuel for fire; it is the oxidizer. You can substitute a different gas for oxygen such as chlorine, fluorine, or dioxygen difluoride. You can also use solid oxidizers such as potassium nitrate or ammonium perchlorate.

Using a safety shower to put out a fire on clothing can actually spread the flames due to the water helping the fire to grow. Instead, one should stop, drop, and roll to smother the flames or use a fire blanket to extinguish the fire without further fueling it.

Any fire involving live electrical components, such as an electric motor, transformer, or switchgear. Here is a way to remember-

A- burning solids- leaves ASH

B- Liquids- the BOIL

C- Electrical CURRENT

D- flammable metals- they DENT

The CO2 or the dry Chemicals can be used to

extinguish Liquid Fire, though other

extinguishes can be used like halogen

extinguishers, BUT the halogen is doesn't help as much as it harms,

because it causes a toxic gas,

and there is Foam

extinguishers they come handy too.

Free radicals in the air, like smoke from a fire, co2 from buses, gases, anything that causes air irrigation, is a free radical. Free radicals also wear on your skin and can possibly make you look older and take a toll on your skin.

Smokey Bear was rescued from the Capitan Gap fire in the Lincoln National Forest in the Capitan Mountains of New Mexico. Smokey had climbed a tree to escape the fire, but his paws and hind legs had been burned.

Class A fire: flammable solids--wood, paper, cloth, things like that.

Class B fire: flammable liquids

Class C fire: electrical fire. A Class C fire is one where electric sparks ignite something else like wood or gasoline, but it's classified differently because it must be extinguished with a nonconductive agent to prevent the firefighters from being electrocuted.

Class D fire: flammable metals

Class K fire: kitchen fires. These are technically Class B fires--grease is a flammable liquid--but they are very hard to put out, so special extinguishing systems are used.

The amount of water needed to extinguish a fire depends on the size and type of fire. Generally, a good rule of thumb is to use at least 1 gallon of water per square foot of fire. However, for larger fires or fires involving chemicals, more water may be required. It is always best to use caution and consult with local fire authorities when dealing with a fire.

The Black Saturday bushfires in 2009 impacted several towns in Victoria, Australia, including Marysville, Kinglake, Kinglake West, and Strathewen, causing significant destruction and loss of life.

Fire takes 3 things to exist: Oxygen, Fuel, and Heat. If one of those is eliminated, the fire is gone. The point of using water is to cool the place down, therefore eliminating the Heat factor.

By the way, that is the reason why you NEVER use water to turn out oil fire. Oil burns at 300 degrees, at that temperature, water turns into high pressure steam withing milliseconds, further expanding the flame, causing a giant fireball.

If you see a blue fire truck (which would be a rare sight, at least in the US), it's because whoever owns it wanted it to be blue. Fire trucks are traditionally red, and that's a far more common color for them than blue is.

CO2 extinguishes fire by displacing oxygen, which is necessary for combustion. When released, CO2 creates a layer of gas that smothers the fire, cutting off the oxygen supply and extinguishing the flames.

The combustion process begins when a fuel source is heated beyond its ignition temperature in the presence of an oxidant, with this molecular energy creating a self-sustaining chemical chain reaction of radicals when the energy it produces is greater than or equal to the energy needed for continued burning.

so by this definition removal of the oxidising agent will prevent the chain reaction to occur.

A sand bucket is best suited for extinguishing small fires caused by flammable liquids, paper, wood, and electrical equipment. It is not effective for extinguishing fires involving cooking oils, grease, or electrical systems.

Yes, it is important to watch for reignition as smoldering embers or hot spots can flare up into flames again. Monitoring for any signs of smoke, heat, or rekindling ensures the fire is fully extinguished to prevent a potential re-ignition.

to light it rub two sticks together and it makes heat which creates fire try rubing ur hands it works to extinguish if theres sand near by use that or something that can prevent oxygen from reaching the fire

first you must understand that in order to burn a fire needs fuel, heat, oxygen, some sort of reaction. carbondioxide extinguishes fire by removing the oxygen from the equation which in turn stops the reaction, causes the heat to dissipate, and then all thats left is partially burned fuel.

When fire burns, it creates heat which causes the water molecules to evaporate and turn into steam. This steam rises rapidly due to the heat, creating a vacuum effect that sucks in more surrounding water to replace what has evaporated. This process is known as the 'steam explosion effect'.

Fire safety is exceptionally important in a laboratory, as they tend to have significant numbers of highly flammable chemicals, which could lead to the fire being very severe very quickly. If fire drill procedures are not obeyed, it leads to a high risk to safety for all persons in the laboratory.

The rules pertaining to a fire drill in a lab vary from laboratory to laboratory, so you would need to check the fire safety procedures for the lab where you are working.

A wheel well fire is unique because it can be four of the five fire classes:

the tires are Class A--flammable solids
the fluids are Class B--flammable liquids
you've probably got electrical actuators in there, so you've also got a Class C--electrical--fire on your hands.
and the plane has some aluminum, magnesium and maybe titanium components; heat them up enough and you're looking at a Class D--flammable metals--fire.


What it WON'T be is a Class K--kitchen flammables--fire.


In the air you'll just use your Class ABC built-in suppression system. If you land the thing on fire, they'll use Aqueous Film Forming Foam.

Dry chemical powder can expire over time due to factors such as moisture, temperature exposure, and chemical degradation. It is recommended to check the expiration date provided by the manufacturer and replace it as needed to ensure it remains effective in case of emergency fire situations.

What you hear on news programs is a certain percent contained! Not controlled. The percentage that is contained is how much actual fireline that is surrounding the active fire. The fire is not controlled until you have 100% containment,generaly!