12 Questions
What is the added advantage of using carbon dioxide (CO2) as a fire extinguisher?
It cools down the fuel and forms a blanket around the fire.
In what form is LPG stored in cylinders?
As a liquid
What happens when carbon dioxide (CO2) is released from a cylinder near a fire?
It expands in volume, cools down, and forms a blanket around the fire.
What is the type of combustion called when a material suddenly bursts into flames without any apparent cause?
Spontaneous combustion
What are the three essential requirements for producing fire?
Fuel, air, and heat
Which statement is true about the role of air in the combustion process?
Air is necessary to raise the temperature of the fuel beyond the ignition temperature.
Why is water not suitable for all types of fires according to the text?
Water conducts electricity.
What is carbon dioxide's role as a fire extinguisher?
It covers the fire like a blanket because it is heavier than oxygen.
What prevents the paper cup from burning when heating water in it?
The water in the cup cools the cup below its ignition temperature
What happens when a fire brigade pours water on a fire?
The water cools the combustible material to below its ignition temperature
Why are substances like petrol, alcohol, and LPG considered inflammable?
They can easily catch fire at low temperatures
How do water vapors help in extinguishing a fire?
They create a barrier around the fire preventing oxygen supply
Learn about the three essential requirements for producing fire and find out how to contact the fire service in case of emergency. Understand the importance of fuel, air, and heat in creating fire, and the steps to take when a fire breaks out.
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