Which NDT is used to measure sub surface defects below 12mm?

Question

Accepted Answer

Ultrasonic Testing (UT) is used to measure sub surface defects below 12mm.

Ultrasonic Testing (UT) is a non-destructive testing method that uses high frequency sound waves to detect internal flaws in materials.
UT is commonly used in industries such as aerospace, automotive, and manufacturing to inspect for defects like cracks, voids, and inclusions.
The technique is effective for detecting sub surface defects as it can penetrate materials and provide detailed information about the size, shape, and location of flaws.
UT can be performed using different techniques such as pulse-echo, through-transmission, and phased array.
Examples of sub surface defects that can be detected using UT include cracks in welds, corrosion in pipelines, and delaminations in composites.

Top Bureau Veritas Inspection Engineer interview questions & answers