Question

Which of the following is not a method of extinguishing fire?
A cooling the fuel to a temperature below the ignition temperature
B removing the supply of carbon dioxide.
C removing the fuel
D removing the oxygen​

Answer 1

Answer:

b) removing the supply of carbon dioxide..

Answer 2

'Removing the supply of carbon dioxide' is not a method of extinguishing fire.

• A fire requires three essential factors to burn successfully- abundant supply of oxygen, a minimum ignition temperature and fuel. By removing any one of these factors, we can prevent a fire from burning.
• Supply of carbon dioxide to a fire displaces oxygen and hence suffocates the fire. This eventually causes the fire to be extinguished. Removal of CO2 will only help the fire burn more.
• Ignition temperature is the minimum temperature required by a fuel to burn. Under this temperature, the fuel can't burn and hence even the burning fire is extinguished below this temperature.
• By removing fuel and oxygen, which are essential components for fire to burn, we can easily extinguish a fire.