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Pick out the wrong statement pertaining to the roll crushers. | |
A. | Maximum feed size determines the required roll diameter. [Wrong Answer] |
B. | For hard material's crushing, the reduction ratio should not exceed 4. [Wrong Answer] |
C. | Both the rolls run necessarily at the same speed. [Correct Answer] |
D. | Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced. [Wrong Answer] |