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What is the gas that helps to make the foam that firefighters use?
fire retardants used in the foam are trimethyltrimethylene glycol and hexylene glycol.
Why gas helps to make the foam that firefighters use?
AFFF or aqueous fire fighting foam is a chemical agent that is added to water usually at a rate of about 300:1 (300gal water for 1gal foam concentrate) this mixture is then mixed with the outside air as it exits the nozzle and creates a blanket of foam that suffocates the fire.
What gas is used to make foam for firefighting?
which gas helps to make the foam that firefighters use
Which gas helps make the foam that firefighter use?
well the tank that holds the foam is compressed with co2 but what actually makes the foam is the nozzle it acts as an aerator and thus making the liquid into foam ----------------------------------------- Air is the most simple example of gas used in foam fire extinguishers.
A gas that helps make foam?
Air is the simplest example.
What propety of foam allows it to extinguish fire?
Most are water based, with a thickening power to make it heavier, the purpose of foam, in a firefighting use is to smother and deprive the fire of oxygen
Why does carbon dioxide helps to make foam that firefighters use?
it is a non-flammable gas that is effective at starving a fire of oxygen. Like other fire extinguishers (foam and water) it is only recommended for fighting certain types of fire. more infromation and recommendations on their use should be available through the fire department.
How would foam help to clean teeth?
foam helps clean our teeth because it can spread all over your teeth and make them clean.
How much money do fire man make?
ALL depends on contract most fighters have other jobs a as well
Is a fire extinguisher the smae foam firefighters use?
No. Fire extinguishers use a dry powder to smother the fire. Firefighters use two types of foam that can be broken down into more categories. A class "A" foam is actually a type of soap. It is used to break up water tension so that water can seep into the ground and/or fuel better. A class "B" foam is used to make a blanket that smothers gasoline or diesel type fires.
Which is the gas that helps to make foam that firefighters use?
Air is the gas most commonly used to create the foam that firefighters use. Most commonly, the foam is generated by adding a small amount (1%-5%) of foaming agent into the water flow coming from the fire engine. This is done by either injecting it into the water stream with a small metering pump, or with a foam eductor which draws the foam into the water stream using a venturi. A foam play pipe, or Foam nozzle is used on the end of the water line which is designed to draw air into the stream of water, and creates the foam. More recently air compressors (CAFS - Compressed Air Foam System) are being added to some newer fire apparatus which injects air directly into the water stream. This allows for even less water to be used in firefighting, and produces a more consistant foam.
Can you use water on an alcohol fire?
It is absolutely FALSE that you should use "Water and nothing but water to put out an alcohol fire." Alcohol (ethanol) floats on water, so any burning alcohol (like a gasoline fire) will simply spread if you put water on it. You can certainly use a BC or ABC fire extinguisher on a small alcohol fire. Furthermore, ordinary Class B (flammable liquid) extinguishers with foam may not be adequate for an alcohol fire, where it might be adequate for gasoline. This is because ethanol "eats through" many ordinary types of foam and continues burning. Fire fighters have been becoming more aware and better trained and prepared for ethanol fires, with the specialized foam and tactics, as large containers of ethanol travel our roadways and railroads.
