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

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

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Workshop Technology
The purpose of a riser is to

Deliver molten metal into the mould cavity
Feed the molten metal to the casting in order to compensate for the shrinkage
Deliver the molten metal from pouring basin to gate
Act as a reservoir for the molten metal

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