Non-Destructive Testing (NDT) Practice Test

After noting the location of the crack, what should you do before repeating the inspection procedure?

1. Document the findings

2. Change the inspection method

3. Clean the inspection area

4. Inform a supervisor

The correct answer is: Clean the inspection area

Before repeating the inspection procedure after noting the location of a crack, it is crucial to clean the inspection area. Cleaning helps to remove any contaminants such as dirt, grease, or debris that may interfere with the results of the inspection. These substances can mask defects or create false indications, leading to inaccurate readings or interpretations of the flaw. By ensuring the inspection area is clean, you improve the reliability and accuracy of the NDT process, allowing for a better assessment of the crack and its characteristics. While it's also vital to document findings or communicate with a supervisor, and alternative inspection methods could be considered depending on the circumstances, cleaning the inspection area is a critical preparatory step that directly affects the outcome of the inspection.