A pebble mill_________________?
Correct answer: D. Both B. and C.
- A. Is a ball mill
- B. Employs flints or ceramic pebbles as the grinding medium
- C. Is a tube mill lined with ceramic or other non-metallic liner
- D. Both B. and C.
Explanation
A pebble mill is a tube mill lined with a non-metallic material and uses flint or ceramic pebbles instead of metallic balls. Hence both descriptions B and C apply.
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