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Eddy current testing does not work below what thickness of materials?(a) 0.1 mm(b) 0.2 mm(c) 0.3 mm(d) 0.4 mmThe question was asked during an interview.This is a very interesting question from Eddy Current Test topic in portion Non Destructive Techniques of Casting-Forming-Welding II

Answer»

The correct choice is (a) 0.1 mm

Best explanation: It is one of the limitations of eddy current that defects having a thickness larger than required cannot be detected USING eddy current method. Conventionally eddy current method cannot DETECT SURFACE defects below 0.1 mm.



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