Questions and Answers
What is the significance of having a lower ash content in coal?
It improves the calorific value of coal.
What is the main implication of higher volatile matter content in coal?
Escaping of unburnt matter
Why is the presence of Sulphur considered undesirable in coal?
It reduces the calorific value of coal.
How does the fixed carbon content affect the quality of coal?
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What is the lowest ranking type of coal based on carbon content?
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What is the primary characteristic of a good fuel?
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Which of the following is classified as a primary or natural fuel according to the text?
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What distinguishes secondary or synthetic fuels from primary fuels?
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Which of the following is an example of a liquid fuel?
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What kind of energy can be derived from fuels through controlled combustion or nuclear reactions?
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