Workshop Technology
In shielded arc welding

None of the listed here
Large electrode is used
Welding rod coated with fluxing material is used
Welding rod coated with slag is used

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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 positive terminal and the electrode holder to the negative terminal
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

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