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

Compound die
Simple die
Progressive die
Combination die

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Workshop Technology
The welding set up is said to have straight polarity, when

Work is connected to the positive terminal and the electrode holder is earthed
Work is connected to the negative terminal and the electrode holder to the positive terminal
Work is connected to the negative terminal and the electrode holder is earthed
Work is connected to the positive terminal and the electrode holder to the negative terminal

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