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The following figure depicts which allowance?

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in Casting-Forming-Welding I by (687k points)
The following figure depicts which allowance?

(a) Machining Allowance

(b) Shrinkage Allowance

(c) Draft Allowance

(d) Shake Allowance

This question was posed to me in a national level competition.

This intriguing question originated from Pattern Allowances topic in portion Preventive Maintenance in Foundries & Metal Casting Process of Casting-Forming-Welding I

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Right answer is (c) Draft Allowance

The explanation is: The pattern is being taken out of the mould without the mould cavity getting damaged. The pattern is having a tapered shape, that is, it has a tapering allowance. Tapering allowance is also called a draft allowance. Hence, this figure depicts draft allowance.

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