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In cement bonded sand mold, sand mold material consists of what percentage of Portland cement?

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in Casting-Forming-Welding I by (687k points)
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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Best 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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