Cores used in PMC are usually made up of?(a) Metal(b) Collapsable material(c) Sand(d) All of the mentionedI have been asked this question in unit test.My query is from Special Casting Techniques in section Special Casting Techniques of Casting-Forming-Welding I

Cores used in PMC are usually made up of?(a) Metal(b) Collapsable mate

1.	Cores used in PMC are usually made up of?(a) Metal(b) Collapsable material(c) Sand(d) All of the mentionedI have been asked this question in unit test.My query is from Special Casting Techniques in section Special Casting Techniques of Casting-Forming-Welding I
Answer» Right choice is (d) All of the mentioned The explanation: In PMC the CORES can be MADE out of any of these MATERIALS.

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Cores used in PMC are usually made up of?(a) Metal(b) Collapsable material(c) Sand(d) All of the mentionedI have been asked this question in unit test.My query is from Special Casting Techniques in section Special Casting Techniques of Casting-Forming-Welding I

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