Workshop Technology
In piercing operation, the clearance is provided on

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

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
For arc welding

Alternating current with low frequency is used
Direct current is used
Any one of these
Alternating current with high frequency is used

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
In a hot chamber die casting machine

Ferrous alloys with high melting temperature are casted
Nonferrous alloys with high melting temperature are casted
Ferrous alloys with low melting temperature are casted
Nonferrous alloys with low melting temperature are casted

ANSWER DOWNLOAD EXAMIANS APP