Study move
Direct answer
Study Surface and subsurface indication logic by writing the one-sentence rule first: Surface and subsurface indication logic is one of the core study areas for Weld Discontinuities and NDE Practice Test. Then answer a small timed set, mark each miss, and review only the weak subtopic. For the Weld Discontinuities and NDE Practice Test, useful companion topics include Discontinuity naming, Defect versus discontinuity, VT, PT, MT, UT, and RT selection.
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.