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Green sand must exhibit high refractoriness in the green sand molding.

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+1 vote
in Foundry and Forging by (110k points)
Green sand must exhibit high refractoriness in the green sand molding.

(a) True

(b) False

The question was posed to me by my school principal while I was bunking the class.

My doubt is from Green Sand Moulding topic in portion Moulding Machines & Special Moulding Processes of Foundry and Forging

1 Answer

+1 vote
by (736k points)
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Best answer
Right choice is (a) True

Explanation: Green sand must guarantee good refractoriness to withstand the high temperature which is generated due to the molten metal and it should not be involved in any kind of melting or fusing with the metal.

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