UT L2 practice test

UT L2 · Question 1 of 2560:00

Discontinuity Detection

The 6 dB drop technique for estimating the length of a reflector is most appropriate when

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The reflector is much smaller than the beamThe reflector is sphericalThe test is done in the near field with a focused probe onlyThe reflector is larger than the beam width at that depth

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Every question is original and written to American Society for Nondestructive Testing's published content outline, and every explanation cites the code section or source it relies on. Expert-reviewed: every question was checked by an NDT professional with 18 years in the industry (Oct 19, 2026).