Toughest Trivia Questions on Liquid Penetrant Testing! This type of testing is carried put on a material in order to detect any flaws in the surface or make the more visible. If you are looking to refresh your understanding on this type of testing, be sure to take the challenging quiz below. All the best and be sure to follow all the steps.
High
Low
Medium
Surface tension is not an important requirement of the liquid
AECB Section 18
CWB
CGSB 48.9712
Ministry of Labour Codes
Help the penetrant enter a discontinuity by reducing the penetrant's surface tension
Mix directly with a fluorescent penetrant to increase its fluorescence
Render the excess post-emulsifiable penetrant water-washable
Blot the penetrant back to the surface to produce an indication
Hot whiting method
Oil and whiting method
Ring method
Water washable method
Ensuring that the surface of the material is free of contaminants
Ensuring the penetrants are free of contaminants
Ensuring that a discontinuity is free of contaminants
Both (a) and (c)
The length of time the emulsifier is left on a material surface
The length of time a developer is left on a material surface
The length of time a penetrant is left on a material, to enter into a near-to-surface discontinuity
None of the above
Caterpillar force
Gravitational force
Capillary force
None of the above
To provide adequate visible light in the darkened viewing booth
The assist the operator when removing excess fluorescent penetrant from the material surface
To cause the fluorescent dye in the penetrant to "glow"
To ensure the fluorescent dye reaches its peak fluorescence
Maximum 71 degrees Celsius
Option 2
16-43 degrees Celsius
The dryer temperature should be as high as possible to allow faster drying
To allow the operator's eyes time to contract for maximum seeing in the darkened inspection area
To allow the operator's eyes time to dilate for maximum seeing in the darkened inspection area
To allow the operator's eyes time to expand for maximum seeing of visible dye penetrant indications
To allow the operator's eyes time to contract for maximum seeing of fluorescent dye penetrant indications
Flash point
Penetrability
Viscosity
Surface tenson
Anticipated discontinuities are shallow and wide
There are large numbers of test parts to be inspected
Extremely long dwell times are needed
All of the above
True
False
True
False
Dry developer
Aqueous developer
Non-aqueous developer
None of the above
Dry developer
Aqueous developer
Non-aqueous developer
None of the above
The extra time is wasted
The developer may lose its blotting ability
A reduction in resolution may result
The excess developer may be difficult to remove
10 to 1 and 30 to 1
6 to 1 and 300 to 1
500 to 1 and 9 to 1
None of the above
Effecting radiation
Persistence after applied radiation
Frequency of transmitted light
Temperature
Add the acid to water
Add the water to acid
Mix the acid to water in equal proportions
Add the acid to alkaline solution
Stop developing action
Improve signal-to-noise ratio
Freeze defects in position
Reduce bleed-out time
Hygrometer
Hydrometer
Three point balance
Litmus paper
Blue-green
Yellow-green
Red-orange
All of the above
Dynes/cm
Mm/sec
Centistokes
Milligrams per cc
Contrast ratios
Colour intensity
Ability to detect small defects
Frequency of black-light used
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