In a roll crusher, both the rolls_________________?
Correct answer: D. All A., B. and C.
- A. Have the same diameter
- B. Are rotated towards each other
- C. Run either at the same or different speeds
- D. All A., B. and C.
Explanation
A roll crusher uses two rolls of generally equal diameter rotating toward one another, and the rolls may run at equal or different speeds depending on the design. Thus all three statements describe roll crushers.
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