Answeres to Keerti ma'am's questions.

COMBUSTION AND FOSSIL FUEL

Q1. What are the different types of fuels used  all over the world?'

Ans 1. The different types of fuels are:-

• Solid fuels
• Liquid fuels
• Gaseous fuelse
• Bio-fuels
• Fossil fuels

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Q2 What are the properties of fuels?
Ans 2. Properties of a fuel are:-

• Fuels produce heat and light on burning
• Produce energy
• Good calorific value
• Has good efficiency

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Q3 What are the properties of ideal fuel?

Ans 3. properties of ideal fuel are:-

•  It should possess high calorific value.
•  It should have proper ignition temperature. The ignition temperature of the fuel should neither be too low nor too high.
•  It should not produce poisonous products during combustion. In other words, it should not cause pollution o combustion.
•  It should have moderate rate of combustion.
•  Combustion should be easily controllable i.e., combustion of fuel should be easy to start or stop as and when required.
•  It should not leave behind much ash on combustion.
•  It should be easily available in plenty.
•  It should have low moisture content.
• It should be cheap.
•  It should be easy to handle and transport.

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