Question:
Which of the following in not to be considered as a primary fuel?
Which of the following in not to be considered as a primary fuel?
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Primary = "As is" from nature. Secondary = "Processed" by humans.
Updated On: May 5, 2026
- Wood
- Petroleum
- Coke
- Coal
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The Correct Option is C
Solution and Explanation
Step 1: Concept Fuels are classified as Primary (found in nature) and Secondary (derived from primary fuels through processing).
Step 2: Meaning Primary fuels like coal, wood, and petroleum can be used directly as they are extracted from the earth or environment.
Step 3: Analysis Coke is produced by the destructive distillation of coal in a furnace.
Step 4: Conclusion Since Coke is a manufactured product derived from coal, it is a secondary fuel.
Final Answer: (C)
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