Workshop Technology
Cores are used to

All of these
Form a part of a green sand mould
Form internal cavities in the casting
Improve mould surface

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Workshop Technology
In a compound die

Only one operation is performed at each stroke of the ram
Two or more operations are performed simultaneously at the single stroke of the ram
Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram
Two or more cutting operations are performed at one station of the press in every stroke of the ram

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