Cores are used to
A. Form internal cavities in the casting
B. Improve mould surface
C. Form a part of a green sand mould
D. All of these
Answer: Option D
Solution(By Examveda Team)
Cores are used to Form internal cavities in the casting and Improve mould surfaceand used to Form a part of a green sand mouldcore is a device used in casting and moulding processes to produce internal cavities and reentrant angles .
The core is normally a disposable item that is destroyed to get it out of the piece
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Cores are only use to form internal cavities in the casting
The cores of used only for making internal cavities in the castings