Workshop Technology
During drawing operation, the states of stress in cup would include

Compressive stress in the flange
Tensile stress in the wall
None of these
Both (A) and (B)

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Workshop Technology
Swab is used for

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

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