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

Simple die
Combination die
Progressive die
Compound die

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Workshop Technology
The diaphragm moulding machine is used to

Ram the sand harder at the pattern face with decreasing hardness towards the back of 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
Give uniform sand hardness throughout the mould

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