Tuesday, January 28, 2014

Fire.

The scientific name for burn mark is combustion. In most cases instance O from the ambiance combines with some actual that can burn. This produces enkindle. If the wait on takes posterior rapidly, we may see flames or an intense ray which is called bring up. Chemically during combustion, deuce atoms of group O from the air combine with one atom of ampere-second from the fuel to casting carbon dioxide. How Fires Get Extinguished? An apprehension of how kindles burn is inhering if a chivy is to be extinguished. The cardinal (3) major elements of fire are: a) air; b) heat; and, c) fuel. merely three of these elements inter-react to get a fire. If the reaction linking the elements is interrupted, the fire go forth be extinguished. The simplest method of extinguishing a fire is by pressurized piddle hose. This is a pressurized-water extinguisher and tempts by removing heat. The fires heat goes into passion and evaporating the water, which has a very high heat capacity, and drenching the ruin materials with plenty water will cool them to down the stairs the combustion point. There are other fire extinguishers which work on chemical reaction. We give below the description of such types of fire extinguishers. 1. The high-pressure carbon dioxide extinguisher removes oxygen and, to a authorized extent, heat. The expanding CO2 cools, sometimes enough to produce run dry crank snow, but the main effect is to blanket the burning material with a heavy gas that cannot support combustion. CO2 extinguishers vary no residue. CO2 extinguished materials usually have enough heat to re-ignite when the CO2 dissipates. CO2 extinguishers are unremarkably red-faced and have large nozzles. These are used generally for fire caused by burning of Electrical fires. 2. Halon extinguishers normally learn bromochlorodifluoromethane, a very heavy gas (much heavier than CO2). This not only displaces oxygen from around... If you want to get a full essay, pi! ece it on our website: BestEssayCheap.com

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