Question

list the ways adopted by firefighters to Combat fire

Answer 1

if normal fore they will use water,if fire due to petrol they will not water because density of petrol will decrease as it will move freely and spread fire instead of water we should use mud

Answer 2

Answer :

ways adopted by fire fighters are :

1. The fire fighters immediately put off the electric mains and start spraying water on the fire.

2. The water spray cool the combustible material below the ignition temperature.

3.This prevents fire from spreading .

4. Then the heat turns the water into vapours which surround the burning material.

5. Prevent the supply of oxygen to the burning material.

6. so, the fire extinguishes.

7. For electric fire accidents or fire accidents involving of oil and petrol water is not useful.

8. so, fire fighters use carbon dioxide.

9. It is heavier than oxygen and dose not affect the electric equipment.