Physics

Question

24

Lamellar tearing has occurred in a steel fabrication. What

been used to find it before the weld was made?

a X-ray examination.

b Liquid penetrant examination

Ultrasonic examination

d

It could not have been found by any Insp

Answer

Ultrasonic examination.

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Ultrasonic examination is a non-destructive testing method that can be used to detect flaws in steel fabrication before welding. X-ray examination and liquid penetrant examination are also non-destructive testing methods that can be used to detect flaws in steel fabrication before welding. However, it is not possible to detect lamellar tearing before welding using any inspection method.