A good coking coal should have high ______________ content?
Correct answer: D. None of these
- A. Ash
- B. Sulphur & phosphorus
- C. Moisture
- D. None of these
Explanation
Good coking coal should have low ash, moisture, sulphur and phosphorus, so none of the listed high contents is desirable. High ash lowers coke quality, while sulphur and phosphorus create metallurgical problems.
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