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Questions and Answers
What is the significance of having a lower ash content in coal?
What is the significance of having a lower ash content in coal?
- It increases the combustion efficiency of coal.
- It contributes to the formation of combustible gases in coal.
- It enhances the transport and storage cost of coal.
- It improves the calorific value of coal. (correct)
What is the main implication of higher volatile matter content in coal?
What is the main implication of higher volatile matter content in coal?
- Escaping of unburnt matter (correct)
- Reduced calorific value
- Increased combustion efficiency
- Formation of inert gases
Why is the presence of Sulphur considered undesirable in coal?
Why is the presence of Sulphur considered undesirable in coal?
- It contributes to improving combustion efficiency.
- It reduces the calorific value of coal. (correct)
- It decreases the moisture content of coal.
- It enhances the ash content of coal.
How does the fixed carbon content affect the quality of coal?
How does the fixed carbon content affect the quality of coal?
What is the lowest ranking type of coal based on carbon content?
What is the lowest ranking type of coal based on carbon content?
What is the primary characteristic of a good fuel?
What is the primary characteristic of a good fuel?
Which of the following is classified as a primary or natural fuel according to the text?
Which of the following is classified as a primary or natural fuel according to the text?
What distinguishes secondary or synthetic fuels from primary fuels?
What distinguishes secondary or synthetic fuels from primary fuels?
Which of the following is an example of a liquid fuel?
Which of the following is an example of a liquid fuel?
What kind of energy can be derived from fuels through controlled combustion or nuclear reactions?
What kind of energy can be derived from fuels through controlled combustion or nuclear reactions?
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