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Which of the following is not used in the green sand?

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+1 vote
in Foundry and Forging by (110k points)
Which of the following is not used in the green sand?

(a) Clay

(b) Water

(c) Oil

(d) Chemicals

This question was posed to me in final exam.

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

1 Answer

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Best answer
Right choice is (c) Oil

Easy explanation: In the making of the green sand, clay is present in the form of bentonite. Water percentage is varied as required for a particular casting. Oil is not the kind of binder used in the green sand. Bentonite is the only binder used.

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