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Hot tearing of the casting is least observed in _______________

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Hot tearing of the casting is least observed in  _______________

(a) Green sand moulds

(b) Dry sand moulds

(c) Skin dried sand moulds

(d) Size of the grain

The question was posed to me in class test.

This question is from Types of Sand Moulds topic in section Pattern Materials & Moulding Sand Tests of Foundry and Forging

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Best answer
Correct option is (a) Green sand moulds

The explanation: The hot tearing of the casting refers to the one of the types of casting defect that weakens the strength of the casting defects. As the moisture is present in the green sand mould, the hot tearing is considerably reduced in the green sand mould.

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