Workshop Technology
A two high rolling mill consists of two rolls which rotate

At the same speed and in the same direction
At different speeds and in the opposite direction
At the same speed but in opposite direction
At different speeds and in the same direction

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Workshop Technology
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?

The bottom and middle roll rotate in the same direction
Any one of the above
The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction
The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction

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