How does water and carbon dioxide help in extinguishing fire?

This means water can spread the fire if the fuel is light enough to be carried. So carbon dioxide removes two out of the three things you need to have a fire. And, unlike water, carbon dioxide doesn’t conduct electricity, so it is good for electrical fires.

How do water help in extinguishing fire?

Water cools and smothers the fire at the same time. It cools it so much that it can’t burn anymore, and it smothers it so that it can’t make any more of the oxygen in the air explode. You can also put out a fire by smothering it with dirt, sand, or any other covering that cuts the fire off from its oxygen source.

How co2 helps in extinguishing fire?

Carbon dioxide gas does not support combustion. It displaces oxygen so that oxygen cannot come in contact with fire. Thus, carbon dioxide gas stops the supply of oxygen thereby removing oxygen from the fire triangle. … To extinguish fire, carbon dioxide gas is frequently used in laboratories and kitchens.

How does water help extinguish fire class 8?

Generally, water is used to control fire. Water brings down the temperature of the combustible substance below its ignition temperature. The water vapour surrounds the combustible material, thus helping in cutting off the supply of air. So, that the fire is extinguished.

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Can water make fire worse?

Water Makes Grease Fires Worse

Never try to extinguish a grease fire with water. Water can cause burning grease to splash, which can make the fire spread. Similarly, it is also dangerous to move a pan or pot of burning oil. … This can cause injury or make the fire spread.

What can stop a fire?

Smother the flames with baking soda. Avoid flour or sugar, which can lead to a dynamite-like explosion. Reach for a dry chemical fire extinguisher (a class K extinguisher will also work, but these are usually found in commercial kitchens).

What are the three ways to control fire?

Other methods

  • Throwing sand or soil over small fires – it cuts off air supply and the fire gets extinguished.
  • Cooking oil fire can be extinguished by covering the pan with damp cloth – The damp (or wet) cloth cuts off air supply in the cooking oil and the fire gets extinguished.

What is the principle of fire extinguishing Class 8?

Fire extinguishing works on the principle of cutting off the supply of oxygen to the fire and bringing down the temperature.

Fire safety