What are the three essential requirements to produce fire? How fire extinguisher is useful for controlling the fire?
Answer:
Three essential requirements are:
- Fuel
- Air
- Heat to acquire the ignition temperature
A fire extinguisher is useful in controlling the fire in the following ways:
- It cools all the burning substances to a temperature below its ignition temperature.
- It cuts off the supporter of the burning substance, i.e., oxygen from the combustible substance.