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

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

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Workshop Technology
A jolt machine is used to

Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Produce uniform packing of sand in the mould
Ram the sand harder at the back of the mould and softer on the pattern face
Produce uniform sand hardness throughout the mould

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