Plant Operation Practice Test 2025 – Your All-in-One Guide to Exam Success!

Non-destructive testing (NDT) refers to techniques and methods used to evaluate and inspect materials, components, or systems without causing any damage to them. This approach allows for the assessment of the integrity, quality, and performance of a material while preserving its usability. Various methods used in NDT include ultrasonic testing, radiographic testing, magnetic particle testing, and dye penetrant testing, among others. These techniques enable operators to detect flaws, assess structural integrity, and ensure safety without impairing the objects being tested.

The other options either describe methods that involve damage to the materials, which goes against the principle of NDT, or they limit the scope of inspection to visual means only, whereas NDT can encompass a wide range of techniques beyond just visual inspection.