CWB 2 VISUAL WELD INSPECTOR EXAM LATEST 2026 UPDATED
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
What is surface tension - Answers -Makes liquid to try to reduce surface area while in a free
state
Which way do flux line go - Answers -north to south south to north
The property of liquids that makes them try to reduce their surface area is know as - Answers -
Surface Tension
The ability of liquid to wet a solid surface can be measured in terms by - Answers -contact angle
Fluorescent dye be view - Answers -Black light
Which of penetrants require treatment with a separate agent before the excess can be removed
- Answers -post-emulsifiable, post-remover
What type of developer is normally used with the solvent-removal process to spot check welds -
Answers -Non-aqueous
1|Page
,Most common type of LPI for highly sensitive applications such as fatigue cracks - Answers -
Fluorescent post-emulsified penetrant process
When using LPI what shouldn't you do - Answers -Use grinder. It can flow the surface and
conceal cracks
When using the solvent-removable method, why should the solvent not be sprayed directly on
the surface to remove excess penetrant - Answers -It may leach penetrant out of discontinuities
When using post-emulsifiable penetrants, the emulsifier must remain in contact with the
surface long enough to - Answers -Mix with the excess penetrant but not long to reach
penetrant in the discontinuities
What could be the effect of spraying on too much developer - Answers -It could mask
indications
What is the difference between a false indication and a non-relevant indication - Answers -False
indications are not associated with discontinuities. Nonrelevant indications are associated with
discontinuities
What causes false indications - Answers -Poor cleaning
2|Page
,What indication is most likely caused by a crack - Answers -Continuous line
What is most likely caused by porosity - Answers -Rounded
If a small crack is found by LPI in an aluminum weld - Answers -it may not be repaired by simply
welding over it to melt out the crack, retained penetrant could contaminate the repair. The
metal containing the crack must be removed before repair
The local magnetic field across a crack in a magnetized piece of steel is known as - Answers -Flux
Leakage
The strength of the flux induced when a material is placed in a given magnetic field depends on
what property of the material - Answers -Permeability
The level of residual magnetic flux remaining in a ferromagnetic material when an applied field
is removed is known as: - Answers -Retentively
What is the range of applied (relative to saturation) normally used in magnetic particle
inspection - Answers -30% -70%
3|Page
, The lines of force in a magnetic field formed by an electric current - Answers -At right angles to
the direction of the current
The direction of the magnetic field in the center of a coil is - Answers -Parallel to the axis of the
coil
What term is used to indicate the strength of the magnetic field in a coil - Answers -Ampere
turns
The most favorable direction for detecting a crack when using prods is - Answers -when the
crack lies along the line between the prods
When trying to detect a centerline crack in a weld, where would you place the yoke - Answers -
Across the weld
How are arc strikes avoided when using prods - Answers -Turn the power on after the prods are
in place, and turn the power off before removing prods
What would be a typical current for prods spaced 150 mm (6 in) apart - Answers -About 600
Amps
4|Page
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027) |A+
GRADED |GUARANTEED PASS
What is surface tension - Answers -Makes liquid to try to reduce surface area while in a free
state
Which way do flux line go - Answers -north to south south to north
The property of liquids that makes them try to reduce their surface area is know as - Answers -
Surface Tension
The ability of liquid to wet a solid surface can be measured in terms by - Answers -contact angle
Fluorescent dye be view - Answers -Black light
Which of penetrants require treatment with a separate agent before the excess can be removed
- Answers -post-emulsifiable, post-remover
What type of developer is normally used with the solvent-removal process to spot check welds -
Answers -Non-aqueous
1|Page
,Most common type of LPI for highly sensitive applications such as fatigue cracks - Answers -
Fluorescent post-emulsified penetrant process
When using LPI what shouldn't you do - Answers -Use grinder. It can flow the surface and
conceal cracks
When using the solvent-removable method, why should the solvent not be sprayed directly on
the surface to remove excess penetrant - Answers -It may leach penetrant out of discontinuities
When using post-emulsifiable penetrants, the emulsifier must remain in contact with the
surface long enough to - Answers -Mix with the excess penetrant but not long to reach
penetrant in the discontinuities
What could be the effect of spraying on too much developer - Answers -It could mask
indications
What is the difference between a false indication and a non-relevant indication - Answers -False
indications are not associated with discontinuities. Nonrelevant indications are associated with
discontinuities
What causes false indications - Answers -Poor cleaning
2|Page
,What indication is most likely caused by a crack - Answers -Continuous line
What is most likely caused by porosity - Answers -Rounded
If a small crack is found by LPI in an aluminum weld - Answers -it may not be repaired by simply
welding over it to melt out the crack, retained penetrant could contaminate the repair. The
metal containing the crack must be removed before repair
The local magnetic field across a crack in a magnetized piece of steel is known as - Answers -Flux
Leakage
The strength of the flux induced when a material is placed in a given magnetic field depends on
what property of the material - Answers -Permeability
The level of residual magnetic flux remaining in a ferromagnetic material when an applied field
is removed is known as: - Answers -Retentively
What is the range of applied (relative to saturation) normally used in magnetic particle
inspection - Answers -30% -70%
3|Page
, The lines of force in a magnetic field formed by an electric current - Answers -At right angles to
the direction of the current
The direction of the magnetic field in the center of a coil is - Answers -Parallel to the axis of the
coil
What term is used to indicate the strength of the magnetic field in a coil - Answers -Ampere
turns
The most favorable direction for detecting a crack when using prods is - Answers -when the
crack lies along the line between the prods
When trying to detect a centerline crack in a weld, where would you place the yoke - Answers -
Across the weld
How are arc strikes avoided when using prods - Answers -Turn the power on after the prods are
in place, and turn the power off before removing prods
What would be a typical current for prods spaced 150 mm (6 in) apart - Answers -About 600
Amps
4|Page
