Pick out the wrong statement pertaining to the roll crushers?
AFor hard material’s crushing, the reduction ratio should not exceed 4
BBoth the rolls run necessarily at the same speed
CMaximum feed size determines the required roll diameter
DReduction ratio and differential roll speed affect production rate & energy consumed per unit
Correct answer
B. Both the rolls run necessarily at the same speed
Explanation
The correct answer is Both the rolls run necessarily at the same speed.