Question

What are the 3 essential requirements to produce fire? How fire extinguisher is useful for controlling the fire?

Answer 1

Answer:

three requirements essential for fire are oxygen, ignition temperature and combustible material

Explanation:

fire extinguisher is helpful in controlling fire as they cut the supply of oxygen.

Answer 2

Three essential requirements to produce fire are -

(1) Fuel (that is called combustible substance)

(2) Air (Oxygen)

(3) Heat to acquire the ignition temperature

Now

Fire extinguisher's job is to cut off the supply of air that brings down the temperature of the fuel a'd temperature, and fire extinguishes.

Water is the most common fire extinguisher. Water is used to extinguish the fire of wood, paper etc. But it is not good in case of fire produced by short circuit.

For fire involving electrical equipment and inflammable materials like petrol then carbon dioxide is the best extinguisher.

Carbon Dioxide is heavier than that Oxygen, so therefore it covers the fire like a blanket. And there is cut off of air. So, fire gets controlled.