Workshop Technology
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be

10 mm/m
20 mm/m
16 mm/m
26 mm/m

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Workshop Technology
Linde welding uses

Carburising flame and rightward technique
Oxidizing flame and leftward technique
Neutral flame and leftward technique
Neutral flame and rightward technique

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