Chills are – McqOptions

MCQOPTIONS

1.	Chills are
A.	Metallic objects to provide very low heat extraction capability of sand mould
B.	Metallic objects to provide strength of sand mould
C.	Metallic objects to provide very high heat extraction capability of sand mould
D.	Mixed in sand to enhance its collapsibility
Answer» D. Mixed in sand to enhance its collapsibility

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