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

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

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Workshop Technology
Riddle is used for

Reinforcement of sand in the top part of moulding box
Moistening the sand around the edge before removing pattern
Cleaning the moulding sand
Smoothing and cleaning out depressions in the mould

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