Workshop Technology
The centrifugal casting method, is used for casting articles of

Nonferrous metal only
Irregular shape
Symmetrical shape about horizontal axis
Symmetrical shape about vertical axis

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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
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
Any one of the above

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Workshop Technology
In a simple die

Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram
Two or more cutting operations are performed at one station of the press in every stroke of the ram
None of the listed here
Two or more operations are performed simultaneously at the single stroke of the ram

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