Advertisements
Advertisements
प्रश्न
Explain how CO2 is able to control fires.
उत्तर
CO2 is a non-combustible gas and extinguishes fire in two ways:
- Since it is heavier than oxygen, it covers the fire like a blanket and cuts off the contact between oxygen and fuel.
- In cylinders, CO2 is kept in the liquid form. When released, it expands enormously and cools down. This brings down the temperature of the fuel, which helps in controlling the fire.
APPEARS IN
संबंधित प्रश्न
Burning of wood and coal causes ______ of air.
Fire produced by oil cannot be controlled by ______.
Give reasons.
Water is not used to control fires involving electrical equipment.
Which zone of a flame does a goldsmith use for melting gold and silver and why?
Fire produced by oil cannot be controlled by ______.
If a person’s clothes catch fire, the best way to extinguish the fire is to
Choose the correct statement about inflammable substances from the following.
They have
Write True/False against the following statement and also correct the false statement.
Water is the best extinguisher for fires involving electrical equipment.
What are the classes of fire?
Mention the conditions necessary for producing fire.
