What is combustion?

Combustion and Fire Extinguisher- 8A

Quiz
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Others
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8th Grade
•
Medium
Vandana Menon
Used 1+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A type of dance move
The process of freezing water
A method of cooking food
A chemical reaction between a fuel and an oxidizing agent, usually producing heat and light.
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
List three uses of a fire extinguisher.
Spraying it on a barbecue to enhance the flavour.
Serving as a source of temporary hydration during emergencies.
Acting as a sound amplifier for certain cases.
Using it to water plants. 2. Using the extinguisher as a makeshift vacuum cleaner for small debris. 3. Providing warmth during cold weather by igniting the extinguisher's contents.
Adjusting the pH levels of soil in a garden to promote plant growth.
Applying a reflective coating to surfaces for aesthetic purpose. 3. Enhancing the visual effects of a bonfire during a celebration.
Disrupting the combustion process in ordinary combustibles (Class A).
Smothering and cooling flammable liquid fires (Class B).
Non-conductive suppression of electrical fires (Class C).
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does carbon dioxide cut off the supply of oxygen in a fire?
It increases the amount of oxygen in the surrounding air
It has no effect on the supply of oxygen in a fire
It creates a barrier that prevents oxygen from reaching the fire
It displaces the oxygen in the surrounding air
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name three common fuels used in combustion.
Gasoline, natural gas, wood
Electricity, oil, glass
Coal, diesel, plastic
Propane, paper, hydrogen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define calorific value in the context of fuels.
The smell of the fuel
The color of the flame produced by the fuel
Amount of heat energy produced by the complete combustion of a unit quantity of fuel
The weight of the fuel
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the three essential components required for combustion to occur?
Metal, wood, and plastic
Water, air, and light
Cold, darkness, and silence
Fuel, oxygen, and heat
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the process of ignition in combustion.
The process of ignition in combustion involves cooling the fuel instead of heating it
Ignition occurs when the fuel is mixed with water instead of oxygen
Combustion is initiated by applying pressure to the fuel
Heat is applied to a fuel in the presence of oxygen, leading to the release of energy in the form of heat and light.
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