Which of the following properties must a material possess to be used in mold making?(a) High refractoriness(b) Chemical and thermal stability(c) High permeability(d) All of the mentionedThe question was posed to me by my school teacher while I was bunking the class.The question is from Mold Materials topic in section Molding and Core Sands of Casting-Forming-Welding I

Which of the following properties must a material possess to be used i

1.	Which of the following properties must a material possess to be used in mold making?(a) High refractoriness(b) Chemical and thermal stability(c) High permeability(d) All of the mentionedThe question was posed to me by my school teacher while I was bunking the class.The question is from Mold Materials topic in section Molding and Core Sands of Casting-Forming-Welding I
Answer» CORRECT OPTION is (d) All of the mentioned Explanation: A MATERIAL MUST have all of the above PROPERTIES so as to be a good mold making material.

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