Definition
Direct answer
VT, PT, MT, UT, and RT selection is one of the core study areas for Weld Discontinuities and NDE Practice Test. On the Weld Discontinuities and NDE Practice Test, treat VT, PT, MT, UT, and RT selection as a concept to understand, not an answer letter to memorize. Review how it affects safety, code interpretation, jobsite decisions, or timed problem solving, then answer a short practice set tied to Discontinuity naming, Defect versus discontinuity, Surface and subsurface indication logic.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as Study module and drill a smaller set before returning to mixed practice.