Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?
Correct answer: A. Density separation
- A. Density separation
- B. Differential wettability
- C. Size
- D. Volatile matter content
Explanation
A float-and-sink test divides coal according to its density, so its washability curve evaluates cleaning by density separation. Differential wettability is the basis of froth flotation, not float-and-sink testing.
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