Workshop Technology
In blanking operation, the clearance is provided on

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

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
Extrusion

Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
Is extensively used for making bolts and nuts
Is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work

ANSWER DOWNLOAD EXAMIANS APP