Which of the following fuels is the best for burning on chain grate stoker ?
Correct answer: A. Non-caking coal
- A. Non-caking coal
- B. Caking coal
- C. Coking coal
- D. Pulverised coal
Explanation
Chain-grate stokers require coal that supports a permeable bed and burns progressively as it moves along the grate. Non-caking coal is preferred because caking coal forms an impervious mass that restricts air flow.
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