Question

Soda-acid fire extinguisher extinguishes the fire by :

• A. cutting the supply of air
• B. removing the combustible substance
• C. raising the ignition temperature
• D. none of these

Answer 1

The correct option is A cutting the supply of air

The principle of working of fire extinguisher is based on either of the following three conditions:

• cooling the combustible material below its ignition temperature, or

• cutting off the supply of air, or

• cooling the combustible material and at the same time cutting the supply of air.