NDT UT Level 2 Exam Study Guide with Complete Solutions
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Course
2024/2025
Institution
2024/2025
NDT UT Level 2 Exam Study Guide with
Complete Solutions
Discontinuity location and size (plan view). - Answer-When a C-scan is used to produce a permanent
record of an ultrasonic test, the information displayed is typically the:
Loss of echo amplitude from discontinuities and an increase in the...
The wavelength would be shorter - Answer✔✔-If a 5.0 MHz transducer is substituted for a 2.25 MHz
transducer (5.0 old, 2.25 new), what would be the effect on the wavelength of a longitudinal mode wave
in the test specimen.
All of the above - Answer✔✔-What can cause irrelevant indications on the display screen? (Contoured
surfaces, edge effects, surface conditions, All of the above)
Reference Standard - Answer✔✔-A common method for the estimation of defect size is the use of a:
Near Field - Answer✔✔-Another name for Fresnel Zone is:
Test material parameter - Answer✔✔-Attenuation is a: (Test display characteristic, Test material
parameter, Transducer characteristic, Form of testing)
Decreased - Answer✔✔-For discontinuity geometries other than flat, the echo amplitude is usually
______ from that observed for a flat defect, of similar orientation perpendicular to the sound beams.
(identical, increased, decreased, elongated)
Angulate the search unit - Answer✔✔-What must be done to evaluate discontinuities that are oriented
at an angle to the entry surface so that the sound beam will strike the plane of the discontinuity at right
angles?
Activate the transducer - Answer✔✔-The pulser circuit in an ultrasonic instrument is used to:
RF Display - Answer✔✔-An A-scan CRT display which shows a signal both above and below the sweep
line is called a: (Video, RF, Audio or Frequency modulated display)
B-scan display - Answer✔✔-Which display shows the distance a discontinuity is from the transducer and
its length in the direction of transducer travel?
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