Q:
The baking process in plaster moulding process induces which of the following defects?
| A) It depletes down the content of water at a very scarce level
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B) It develops microscopic cracks onto the surface of mould
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| C) It gives the surface improper heat that causes differential heat treatment while casting solidification
| D) The Calcium reacts at elevated temperatures used for baking the mould
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Explanation
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