Workshop Technology
In a ___ two or more operations are performed simultaneously at the single stroke of the ram.

Combination die
Compound die
Simple die
Progressive die

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Workshop Technology
A jolt machine is used to

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

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