Workshop Technology
The algebraic difference between the minimum limit and the basic size is called

Actual deviation
Lower deviation
Upper deviation
Fundamental deviation

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

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

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