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For full interchangeability, what is the relation between the process capability of a machine and manufacturing tolerance of the part?

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For full interchangeability, what is the relation between the process capability of a machine and manufacturing tolerance of the part?

(a) Process capability = Manufacturing tolerance

(b) Process capability ≥ Manufacturing tolerance

(c) Process capability > Manufacturing tolerance

(d) Process capability ≤ Manufacturing tolerance

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Correct option is (d) Process capability ≤ Manufacturing tolerance

The best I can explain: For full interchangeability, only such machines are selected for manufacturing whose process capability ≤ manufacturing tolerance. If this condition is satisfied, then the component will meet the desired tolerance and capable of mating with other.

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