Non-Destructive Testing (NDT) Practice Test

In e-detection, what provides the highest chance of finding flaws during an inspection?

1. Random scanning

2. Multiple angle scans

3. Completing a thorough pattern scan

4. Using high frequency pulses

The correct answer is: Completing a thorough pattern scan

Completing a thorough pattern scan significantly increases the likelihood of detecting flaws during an inspection because it ensures that the entire area of interest is systematically examined. By following a predefined pattern, inspectors can cover all potential flaw locations methodically, reducing the risk of missing defects that might not be captured in a more haphazard or random approach. Thorough pattern scans enable inspectors to identify not just visible flaws but also subtle variations in material characteristics that could indicate the presence of concealed issues. This systematic approach allows for a more comprehensive evaluation of the structure being tested, thereby enhancing reliability in the inspection results. While other methods like multiple angle scans and using high-frequency pulses can indeed enhance detection capabilities in specific scenarios, they do not replace the foundational benefit of a thorough and organized scanning pattern, which ensures maximum coverage and minimizes the chance of oversight in flaw detection.