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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

Answer»

The correct choice is (a) 10%

The best explanation: In a cement BONDED sand mold, sand mold material consists of 10% COMPOSITION of Portland cement, whereas it contains 85.5% composition of silica sand.



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