Workshop Technology
In a bilateral system of tolerance, the tolerance is allowed on

Both sides of the actual size
Both sides of the nominal size
One side of the nominal size
One side of the actual size

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

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