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Which of the following defect is not detected by dye penetrant test?

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in Casting-Forming-Welding II by (119k points)
Which of the following defect is not detected by dye penetrant test?

(a) Non-metallic inclusions

(b) Leaks

(c) Cracks

(d) Forging defects

I had been asked this question in an interview.

I would like to ask this question from Dye Penetrant Test in portion Non Destructive Techniques of Casting-Forming-Welding II

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Correct answer is (a) Non-metallic inclusions

Explanation: Dye penetrant test is one of the methods of non-destructive testing of the components. Leaks, cracks and forging defects are some defects which can be identified by using dye penetrant test. But, for detecting non-metallic inclusions, one will have to do a magnaflux test.

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