Workshop Technology
In a centrifugal casting method

Core is made of nonferrous metal
No core is used
Core is made of sand
Core is made of ferrous metal

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Workshop Technology
The diaphragm moulding machine is used to

Give uniform sand hardness throughout the mould
Ram the sand harder at the back of the mould and softer on the pattern face
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

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Workshop Technology
In a simple die

Two or more operations are performed simultaneously at the single stroke of the ram
Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram
None of the listed here
Two or more cutting operations are performed at one station of the press in every stroke of the ram

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