Size reduction of ice and gypsum can be accomplished suitably by a _______________ crusher?
Correct answer: B. Toothed roll
- A. Blake jaw
- B. Toothed roll
- C. Gyratory
- D. None of these
Explanation
Toothed-roll crushers are suitable for relatively soft, tough or friable materials such as ice and gypsum. Jaw and gyratory crushers are generally preferred for harder, coarser feed.
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