LPI Level 1 Practice Test questions and answers 2024
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Course
LPI
Institution
LPI
Which one of the following conditions will affect the rate and the extent a liquid penetrant will enter cracks, fissures, and other small openings? - answer-the surface condition of the specimen being tested
Which of the following is a commonly used classification for penetrant? - answer-post-em...
LPI Level 1 Practice Test questions and
answers 2024
Which one of the following conditions will affect the rate and the extent a liquid
penetrant will enter cracks, fissures, and other small openings? - answer-✔the
surface condition of the specimen being tested
Which of the following is a commonly used classification for penetrant? - answer-
✔post-emulsifiable penetrant
A generally accepted method for removing excess nonwater-washable penetrant is
- answer-✔wiping and cautiously cleaning the test specimen with a cleaner-
dampened cloth
All of the following parts can be tested by the liquid penetrant method except -
answer-✔a part made from a porous plastic material
Which of the following discontinuities can be found by the penetrant test method?
- answer-✔a surface crack
Which of the following is generally the more acceptable method for cleaning parts
prior to penetrant testing? - answer-✔vapor degreasing
All of the following methods are commonly used to clean parts prior to penetrant
testing except - answer-✔power wire brushing
Cutting oils may be effectively removed from parts before penetrant testing by -
answer-✔vapor degreasing
, The most common type of contaminant in fluorescent penetrant fluid is - answer-
✔water
Black light, with a proper functioning filter in place, used for fluorescent penetrant
inspection can cause permanent damage to - answer-✔none of the above
All of the following basic inspection principles apply to the penetrant methods
except - answer-✔indications glow when illuminated with a black light
Subsurface discontinuities can be best detected by - answer-✔none of the above
Visible penetrant may be applied by - answer-✔brushing, spraying, and dipping
The first step in conducting a liquid penetrant test on a surface that has been
painted is to - answer-✔completely remove the paint
When using a post-emulsification penetrant, it is necessary to apply the emulsifier:
- answer-✔after the dwell time has elapsed
When conducting a water-washable liquid penetrant test, the wet developer is
applied - answer-✔after the removal of the penetrant
The term used to describe the action of a particular developer in soaking up the
penetrant in a discontinuity, so as to cause the maximum bleed-out of the liquid
penetrant for increased contrast and sensitivity, is known as - answer-✔blotting
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