Answer (1 of 3): There is this thing called a fire tetrahedron which explains how the rapid oxidation reaction of burning works. In order for a fire to burn all 4 parts must be present. Throwing sand inhibits two of these 4 parts. It takes heat …
Sand as Fire Extinguisher. It is the purpose of this article to suggest an improvement in equipment for using sand as a fire extinguisher. For protection against tires in …
Why does water extinguish fire? – tec-science
The very large heat of vaporization of water is the reason why water is particularly suitable for extinguishing a fire. When water is poured onto the fire site, the water is not only heated, but also vaporized. As explained, the water requires a great deal of heat specifically for vaporization. This energy is supplied by the fire site.
Why are water and sand used to extinguish fires? Get the answers you need, now! ritaprasad ritaprasad 18.08.2020 Chemistry Primary School answered 5. Why are water and sand used to extinguish fires? 2 See answers Advertisement …
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Why is sand used to extinguish fire?
The oxygen molecules in the sand is not in free state. It is combined with the silicon atoms and the heat generated in ordinary fires is not capable to break these bonds to get oxygen for combustion. So it is safe to use sand to extinguish ordinary fires. Does water increase or extinguish fire?
Why don’t firemen use sand instead of water in their tanks?
Because there are usually not lakes of sand lying around conveniently which firemen (and -women) can use to replenish their tanks. Because sand makes even more of a mess than water, and is so heavy that if you filled an apartment tower storey with sand, the sheer weight would endanger the structural stability of the building.
Why does throwing sand stop a fire from burning?
In order for a fire to burn all 4 parts must be present. Throwing sand inhibits two of these 4 parts. It takes heat away from reaction because sand can absorb a lot of heat, so there’s less heat to fuel the reaction.
What is a Class A fire extinguisher used for?
Class A fires burn paper, wood, cardboard, cloth, trash and plastic. These fires will usually leave an ash. You would fight these types of fires with water. You could also use all other types of fire extinguishers if needed. Meaning you can use A, B, C or D or K class extinguisher to put these out.
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Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher