Workshop Technology
In sheet metal blanking, shear is provided on punches and dies so that

Warping of sheet is minimized
Cut blanks is straight
Good cut edge is obtained
Press load is reduced

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
Swab is used for

Reinforcement of sand in the top part of the moulding box
Cleaning the moulding sand
Smoothing and cleaning out depressions in the mould
Moistening the sand around the edge before removing pattern

ANSWER DOWNLOAD EXAMIANS APP