The internal cavities in the casting are prepared using
Mould
Riser
Core
Chills
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mould interval. cavaties is the casting are prepared
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The correct option to this question is C. The internal cavities in the casting are prepared using Core.
Core is a metal or sand insert in a mold to shape the interior of the casting or that part of the casting that can not be shaped by the molds.
It is the portion of the cast which forms the internal shape.
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