Workshop Technology
In a ________, both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

Compound die
Simple die
Combination die
Progressive die

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Workshop Technology
Shift is a casting defect which

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

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Workshop Technology
The purpose of a riser is to

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

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