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Questions and Answers
What is combustion?
What is combustion?
What is the essential requirement for combustion?
What is the essential requirement for combustion?
What is ignition temperature?
What is ignition temperature?
How can fire be controlled?
How can fire be controlled?
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What is an ideal fuel?
What is an ideal fuel?
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What is the lowest temperature at which a combustible substance catches fire?
What is the lowest temperature at which a combustible substance catches fire?
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Which type of combustion involves a sudden increase in volume and release of gas?
Which type of combustion involves a sudden increase in volume and release of gas?
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What are the three different zones of a flame?
What are the three different zones of a flame?
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What is the common method used to control fires involving electrical equipment or oils?
What is the common method used to control fires involving electrical equipment or oils?
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What is the unit used to express fuel efficiency?
What is the unit used to express fuel efficiency?
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Study Notes
Combustion Basics
- Combustion is a chemical reaction between a fuel and an oxidizer that results in the release of heat and light energy.
- The essential requirement for combustion is the presence of fuel, oxygen, and heat.
Ignition Temperature
- Ignition temperature is the minimum temperature required for a fuel to ignite.
Fire Control
- Fire can be controlled by removing one or more of the essential requirements for combustion (fuel, oxygen, or heat).
- Electrical equipment or oil fires can be controlled using a non-conductive extinguishing agent, such as carbon dioxide or dry powder.
Fuels
- An ideal fuel is one that is easily ignited, burns smoothly, and releases a lot of energy per unit mass.
Autoignition Temperature
- The autoignition temperature is the lowest temperature at which a combustible substance catches fire without an external ignition source.
Types of Combustion
- Explosive combustion involves a sudden increase in volume and release of gas, often resulting in a loud noise and a shockwave.
Flame Structure
- A flame consists of three different zones: the inner flame (where combustion takes place), the luminous zone (where soot particles emit light), and the outer flame (where combustion is incomplete).
Fire Extinguishing Agents
- Electrical equipment or oil fires can be controlled using a non-conductive extinguishing agent, such as carbon dioxide or dry powder.
Fuel Efficiency
- Fuel efficiency is typically expressed in units of miles per gallon (mpg) or kilometers per liter (km/L).
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Description
Test your knowledge on combustion and flame with this quiz. Learn about the process of burning, the requirements for combustion, and the characteristics of flames.
