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In liquid penetrant testing (LPT) method, preparation of testing surface is very critical.

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+1 vote
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in Casting-Forming-Welding I by (687k points)
In liquid penetrant testing (LPT) method, preparation of testing surface is very critical.

(a) True

(b) False

I got this question in an online quiz.

Origin of the question is Inspection and Testing topic in chapter Inspection Testing in Foundries of Casting-Forming-Welding I

1 Answer

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Best answer
Correct choice is (a) True

Best explanation: For the use of penetrant inspection, proper preparation of the test surface is critical because unprepared surface will only reveal gross porosity and large cracks on the surface. So for preparing the surface for testing, process like machining, caustic etching, acid pickling etc. are used.

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