ASNT NDT Level III Basic case studies
ASNT NDT Level III Basic · Put your knowledge to work in context.
The ASNT NDT Level III Basic examination is the general-knowledge component of ASNT's Level III certification program for nondestructive testing personnel. Level III is the highest of the three NDT qualification levels, and it is aimed at people who are ready to move beyond performing tests into work that requires broad technical judgment: writing and approving NDT procedures, selecting methods for a given part and defect type, interpreting standards and specifications, training and examining lower-level personnel, and taking responsibility for an NDT program. The ASNT NDT Level III Basic case studies are 5 cases and about 1,749 words.
1Weld Inspection Method Selection for Thick Section
A fabrication shop is welding a 50 mm thick carbon steel pressure vessel. The weld is a double-V butt joint with a single-sided access for most of the circumference.
413 words, about 2 min2Personnel Certification Equivalency for ASNT NDT Level III
A candidate applies for ASNT NDT Level III certification in the ultrasonic testing (UT) method. The candidate holds a valid ASNT NDT Level II certificate in UT and has 5 years of experience.
321 words, about 2 min3Procedure Qualification for Ultrasonic Testing of Austenitic Welds
A procedure for ultrasonic testing of austenitic stainless steel welds is being qualified. The weld is 25 mm thick, and the procedure specifies a 5 MHz, 70-degree shear wave probe.
345 words, about 2 min4Material Properties Affecting Penetrant Testing
A manufacturer is producing aluminum alloy castings (A356) for aerospace applications. The castings have a rough surface finish (Ra 6.3 µm) and are to be penetrant tested per ASTM E1417.
334 words, about 2 min5Method Comparison for Thickness Measurement of Coated Pipe
A pipeline operator needs to measure the wall thickness of a 12-inch diameter carbon steel pipe. The pipe is coated with a 3 mm thick epoxy coating.
336 words, about 2 min