Workshop Technology
In blanking operation, the clearance is provided on

Punch
Either on punch or die depending upon designer's choice
Die
Half on the punch and half on the die

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Workshop Technology
In permanent mould casting method

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
None of these
Molten metal is poured and allowed to solidify while the mould is revolving
Molten metal is forced into mould under high pressure

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