Chills are used in casting moulds to

1.

Chills are used in casting moulds to

A. achieve directional solidification

B. reduce the roughness of top surface of the cast product

C. increase the solidification time

D. reserve excess molten metal

Answer» B. reduce the roughness of top surface of the cast product

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1.	Chills are used in casting moulds to
A.	achieve directional solidification
B.	reduce the roughness of top surface of the cast product
C.	increase the solidification time
D.	reserve excess molten metal
Answer» B. reduce the roughness of top surface of the cast product

Chills are used in casting moulds to

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