NDT Exam Questions and Answers
|100% Pass
low viscosity liquid with low surface tension - Answer-Capillary action
When current passes through the part;The orientation of the magnetic flux is circular - Answer-
Circular
Using a coil;Flux lines rotate around the longitudinal axis - Answer-Longit...
The magnetism that remains in a material after the magnetizing force is removed is called - Answer✔✔-
retentivity
A _______ uses CRT for imaging and the image can be recorded for reference - Answer✔✔-videoscope
A fault located with the fluorescent penetrant method will show up as a ______ line - Answer✔✔-green
The time the penetrant remains on the surface of the part is known as _____ time - Answer✔✔-dwell
two methods of magnetization for mag particle inspection are ___ and ___ methods - Answer✔✔-
longitudinal and circular
Two important characteristics of the testing medium used for magnetic particle inspection are -
Answer✔✔-high permeability and low retentivity
The magnetic strength of a piece of material is ____ at its surface - Answer✔✔-strongest
There are three types of penetrants used for liquid penetrant inspections - Answer✔✔-water-soluble,
post-emulsifying, and solvent-removable
Penetrant inspection is based on the principle of - Answer✔✔-capillary action
parts which are to be inspected using liquid penetrants ____ be cleaned with an abrasive blast -
Answer✔✔-should not
A ____ is an optional device that allows us to see inside an engine without disassembling it - Answer✔✔-
borescope
When magnetizing a part for magnetic particle inspection, it must be magnetized in such a way that the
lines of flux are - Answer✔✔-perpendicular
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