Workshop Technology
In a ________, both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

Combination die
Compound die
Progressive die
Simple die

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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?

Any one of the above
The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction
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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Workshop Technology
During hot working of metals

Porosity of the metal is largely eliminated
Mechanical properties are improved due to refinement of grains
Grain structure of the metal is refined
All of the listed here

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