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Which of the following is not a constituent of molding sand?

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in Engineering Material & Metallurgy by (773k points)
Which of the following is not a constituent of molding sand?

(a) Additive

(b) Sand

(c) Epoxy

(d) Binder

The question was asked in a job interview.

Question is taken from Mold Making topic in portion Testing of Materials, Foundry & Powder Metallurgy of Engineering Material & Metallurgy

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Best answer
Correct answer is (c) Epoxy

Best explanation: A special type of sand is used for making molds, which is an important stage in casting. The molding sand contains refractory sand, binder, and additive. These type of sands maintain the shape at high temperatures, makes it porous and is cheap, thereby reusable.

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