Pick out the wrong statement pertaining to the roll crushers. – McqOptions

MCQOPTIONS

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

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