Workshop Technology
In shielded arc welding

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

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Workshop Technology
Shift is a casting defect which

Occurs near the ingates as rough lumps on the surface of a casting
Occurs as sand patches on the upper surface of a casting
Results in general enlargement of a casting
Results in a mismatching of the top and bottom parts of a casting

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Workshop Technology
The purpose of a gate is to

Delivers molten metal from pouring basin to gate
Feed the molten metal to the casting in order to compensate for the shrinkage
Delivers molten metal into the mould cavity
Act as a reservoir for the molten metal

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