Workshop Technology
In a ___ two or more operations are performed simultaneously at the single stroke of the ram.

Simple die
Progressive die
Compound die
Combination die

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Workshop Technology
Piercing is an operation of cutting

A cylindrical hole in a sheet of metal by the punch and the die
A hole (other than cylindrical) in a sheet of metal by the punch and the die
A flat sheet to the desired shape
A number of holes evenly spaced in a regular pattern on a sheet of metal

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