Advertisements
Advertisements
प्रश्न
Explain how CO2 is able to control fires.
Advertisements
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
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 catches fire, the best way to extinguish the fire is to
When the clothes of a person catch ______ the person is covered with a ______ to extinguish fire.
Some words (underlined) in the following sentence is jumbled up. Write them in their correct form.
Chittsmack does not burn by itself.
Manu was heating oil to fry potato chips. The cooking oil all of a sudden caught fire, he poured water to extinguish the fire. Do you think, this action was suitable? If yes, why? If not, why not? In such a condition what should Manu have done?
What are the classes of fire?
Mention the conditions necessary for producing fire.
