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mechanical engineering workshop technology
1. A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
(A): any one of the above
(B): The bottom and middle roll rotate in the same direction.
(C): The upper and bottom rolls rotate in the same direction whereas the middle roll rotate in opposite direction.
(D): The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction.
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