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Which of the following is ‘not’ an allowance given to the pattern for casting?

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in Casting-Forming-Welding I by (687k points)
Which of the following is ‘not’ an allowance given to the pattern for casting?

(a) Shrinkage

(b) Draft

(c) Hole

(d) Machining

The question was posed to me in examination.

This intriguing question comes from Difference between Pattern and Casting topic in portion Pattern and Pattern Making of Casting-Forming-Welding I

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The correct option is (c) Hole

The explanation is: A hole is made during the machining or finishing of the casting and is not a type of allowance given to the pattern.

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