Quick solidification of the casting can cause defects like shrinkages, cracks or blow holes.(a) True(b) FalseThe question was asked in a national level competition.My question comes from Steps Involved In Making a Mold in section Mold and Mold Making of Casting-Forming-Welding I

Quick solidification of the casting can cause defects like shrinkages,

1.	Quick solidification of the casting can cause defects like shrinkages, cracks or blow holes.(a) True(b) FalseThe question was asked in a national level competition.My question comes from Steps Involved In Making a Mold in section Mold and Mold Making of Casting-Forming-Welding I
Answer» Correct choice is (a) True The explanation is: The molten metal is poured into the mould cavity that begins to cool and solidify. During solidification, most of the defects which may OCCUR are a result of the solidification process. If the molten metal solidifies too quickly, then the casting parts may EXHIBIT defects LIKE shrinkage, CRACKS or blow holes.

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Quick solidification of the casting can cause defects like shrinkages, cracks or blow holes.(a) True(b) FalseThe question was asked in a national level competition.My question comes from Steps Involved In Making a Mold in section Mold and Mold Making of Casting-Forming-Welding I

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