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In cement bonded sand mold, sand mold material consists of what percentage of Portland cement?(a) 10%(b) 15%(c) 20%(d) 25%I got this question in an interview for internship.This question is from Types of Molds in portion Mold and Mold Making of Casting-Forming-Welding I |
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Answer» The correct choice is (a) 10% |
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