Workshop Technology
The machining allowance provided on patterns depends upon

All of these
Method of casting used
Size and shape of casting
Type of casting metal

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Workshop Technology
In permanent mould casting method

Molten metal is forced into mould under high pressure
None of these
Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition
Molten metal is poured and allowed to solidify while the mould is revolving

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Workshop Technology
In a compound die

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

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