Workshop Technology
The adhesiveness is the property of sand due to which

None of these
The sand grains stick together
It evolves a great amount of steam and other gases
It clings to the sides of a moulding box

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Workshop Technology
The diaphragm moulding machine is used to

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