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NDT Questions and Answers 2024/2025
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Boroscope  An optical device similar in principle to a telescope in that it enlarges objects like a magnifying glass. Fiberoptic Scope  An optical device that has a flexible, articulated probe that can bend around corners. Allows you to see inside objects that previously would have nee...

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  • October 11, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ndt questions and answers
  • boroscope an optical device similar in principle

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  • NDT
  • NDT

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2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!


NDT Questions and Answers 2024/2025
Boroscope

 An optical device similar in principle to a telescope in that it enlarges objects like a
magnifying glass.


Fiberoptic Scope

 An optical device that has a flexible, articulated probe that can bend around corners.
Allows you to see inside objects that previously would have needed dis-assembly.


Video Scope

 The image is recorded by a tiny light-sensitive CCD chip.


Weld


 A good ____ is uniform in width, with even ripples that taper off smoothly into the
base metal.


Liquid Penetrant Inspection

 A method of non-destructive inspection used for locating cracks, porosity, or other
types of faults open to the surface.


Green

 Using liquid penetrant inspection an ultraviolet light is used with the fluorescent
penetrant and any flaw shows up as this color.


Red


 Using liquid penetrant inspection, the colored dye method the faults show up as this
color.




1|Page| GradeA+ | 2 0 0 2 5

, 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!

Capillary Attraction

 An action causing a liquid to be drawn up into extremely tiny tubes or between close-
fitting parts.


Defect must be open to the surface

 The primary limitation of dye penetrant inspection in that...


Dwell Time


 The amount of time required for a penetrant to cure is called it's ____ ____ and is
determined by the size and shape of the discontinuities being looked for.


Water, Emulsifying Agent, or a solvent

 Liquid penetrant is removed using either...sprayed at a 45 degree angle.


Dry Developer

 This developer contains loose powder material such as talcum, typically placed in a
bin of loose developer.


Wet Developer

 This developer typically consists of a white powder mixed with water that is either
flowed over a surface, or a part is immersed in it.


Non Aqueous Developer

 This developer consists of a white chaulk-like powder suspended in a solvent that is
normally applied from a pressure spray can, or sprayed onto a surface with a paint
gun.


Magnetic particle inspection



1|Page| GradeA+ | 2 0 0 2 5

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