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NDT MIDTERM EXAM; 100 QUESTIONS WITH VERIFIED ANSWERS
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NDT MIDTERM EXAM; 100 QUESTIONS WITHVERIFIED ANSWERS
What NDT procedures should you use to corroborate your findings after
performing a surface inspection on a piece of aluminium for potential cracks? -
ANSWER: Visual and Penetrant
After thoroughly cleaning the part's surface, a penetrant can be applied by: -
ANSWER All of the above.
The most critical phase in any penetrant-type inspection is part preparation and
cleaning.
The most critical consideration before completing any NDT test for a
commercial airline is: to answer all of the above.
What classes of penetrant systems would you use, based on your manual
reference materials? Penetrant Type: Type 1 Removal Method: Method C
Sensitivity Level: Level 3 Developer: Form d - ANSWER Type I fluorescent
developer with high sensitivity, solvent removal, and nonaqueous properties.
In general, there is no risk in using a longer dwell time as long as the penetrant:
- ANSWER Remains on the part for no longer than the process in use allows.
The skills and qualifications required for NDT/NDE are only applicable to the
aviation industry. - Answer: False
The most generally used methods of nondestructive testing are: ANSWER
Ultrasound, Magnetic Particle, Eddy Current, and Penetrant.
, Recalling from your lab, when performing a fluorescent penetrant inspection,
the developer should be applied: - ANSWER From a distance of 6 to 8 inches
and in a one-way motion to create a lightly coated white surface to provide a
color contrast to the penetrant and sufficient enough to draw the penetrant out of
the discontinuity.
What purpose do calibration stickers serve in NDT? - ANSWER Ensures that
the equipment and materials used for NDT tests are calibrated, lawful, and
capable of providing acceptable performance.
What is the best NDT technique for finding faults beneath the surface of an
aluminium test piece? - ANSWER Ultrasound
What is the most fundamental type of non-destructive inspection/examination? -
ANSWER Visual Inspection
What are the key indicators of a post-FPI/LPI inspection? - Answer: Circles,
continuous line, and intermittent line
What level of penetrant sensitivity is required for engine rotating parts? -
ANSWER Level 4.
When a fluorescent penetrant inspection is performed, the penetrant is
manufactured to glow brightly and emit light at a wavelength that: - ANSWER
The eye is most sensitive to under dim lighting circumstances when employing
an ultraviolet light source.
You are qualified in all NDT disciplines. You have a Level 2 qualification in
Ultrasound and Eddy Current. You have over 1000 hours of FPI experience and
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