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LPI EXAM QUESTIONS AND ANSWERS
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LPI EXAM QUESTIONS AND ANSWERS
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LPI EXAM QUESTIONS AND ANSWERSOne of the jobs of the kernel is to: - Answers -Manage system's resources.
Unix is: - Answers -An operating system
A trademark
Linux is written in: - Answers -C
¬Which of the following penetrant method is generally used for portable field
inspections?
The water washable fluorescent penetrant method
The post-emulsification fluorescent penetrant method
The solvent removable penetrant method
None of the above - Answers -The solvent removable penetrant method
A good commercial penetrant should have a
Low flash point
High flash point
Medium flash point
Flash point is not a factor to be considered - Answers -High flash point
Water washable penetrant may be applied by
Brushing
Spraying
Dipping
All or the above - Answers -All or the above
Liquid penetrant inspection cannot find
Surface porosity
Surface cracks
An internal cavity
A surface forging lap - Answers -An internal cavity
When an inspector is working in a darkened area, he/she should become adjusted to
the dark before inspecting parts. The generally accepted minimum time period for
becoming accustomed to the dark is:
1 to 5 min
5 to 10 min
10 to 15 min
No waiting period is necessary - Answers -1 to 5 min
Which of the following surface contaminants cannot be removed by cleaning parts in a
vapor degreaser
Grease
Rust
, Heavy oil
Soluble oil - Answers -Rust
When performing a penetrant test using a post emulsification penetrant, which of the
following is the most critical with respect to proper timing?
Dwell time
Developing time
Emulsification time
Drying time - Answers -Emulsification time
In penetrant testing, the time period from developer application to inspection is often
referred to as the:
Emulsification time
Developer time
Dwell time
None of all above - Answers -Developer time
Which of the following is a type of developer used in penetrant inspection?
Dry
Aqueous particulate
Non-aqueous particulate
Water soluble
All of the above - Answers -All of the above
If a part to be penetrant tested is hot, the penetrant:
May become viscous
May reduce sensitivity to small defects
May lose some of its color brilliance
Will show small discontinuities better - Answers -Will show small discontinuities better
Insufficient rinsing of fluorescent penetrants will result in:
Subsequent corrosion of the surface
Difficulty in the application of developer
Excessive bleed out
Excessive background fluorescent - Answers -Excessive background fluorescent
All of the following parts can be tested by the liquid penetrant method except,
An iron casting
An aluminum forging
A part made from a porous plastic material
A part made from a nonporous material - Answers -A part made from a porous plastic
material
Source code refers to: - Answers -A human readable version of computer software
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