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All the sand moulds should have a great venting capacity.

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in Foundry and Forging by (110k points)
All the sand moulds should have a great venting capacity.

(a) True

(b) False

I got this question in an interview for job.

This intriguing question comes from Types of Sand Moulds topic in chapter Pattern Materials & Moulding Sand Tests of Foundry and Forging

1 Answer

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Correct answer is (a) True

Explanation: The venting is done in the sand moulds so that the gases are let out after the metal is poured in it. If these gases are not let out, they tend to form casting defects on the surface of the castings. Hence all the sand moulds should have great venting capacity.

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