ASNT PT LEVEL I+II EXAM QUESTIONS
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
Contain a colored (usually red) dye - ANS Visible dye Penetrant
Contain a combination of visible and fluorescent dyes - ANS Dual Sensitivity Penetrants
Which process contains penetrants that are either self-emulsifying or removable with plain
water? - ANS Water-washable
Process that requires a separate emulsifier to make the penetrant water washable -
ANS Post-Emulsified Penetrants
Method where penetrants must be removed with a solvent which is typical when using visible
dye in pressurized spray cans. - ANS Solvent-removable penetrants
Penetrant testing is limited by its inability to test materials that have what types of
discontinuities? - ANS Continuities that:
-Are not open to the surface
-Have an extremely porous surface
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,This cleaning method is particularly effective in the removal of oil, grease, and similar organic
contamination. - ANS Vapor degreasing
This cleaning method is particularly adaptable to the cleaning of large, unwieldy articles. -
ANS Steam Cleaning
This cleaning method is effective for use on articles that have been ground or machined. This
process uses an acid or an alkaline solution to open up grinding burrs and remove metal from
surface discontinuities. - ANS Etching
Contain an emulsifying agent which makes them easily removable by a water rinse or wash.
This penetrant material can be obtained with either a visible or fluorescent dye. -
ANS Water-washable penetrants
Highly penetrating, oily visible or fluorescent penetrants which are not soluble in water. -
ANS Post-emulsifiable penetrants
Oily penetrants that do not contain an emulsifying agent - ANS Solvent-removable
penetrants
When applied to a penetrant-coated specimen, make the resultant mixture removable by water
rinse or wash. (they have low penetrant characteristics) - ANS Emulsifiers
A fluffy, absorbent white powder, that is used in both fluorescent and visible dye penetrant
tests. - ANS Dry developers
type of developer where the developer powder is mixed with a rapid-drying liquid solvent -
ANS Non-aqueous wet developer
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Must be used when articles inspected are subjected to contact with either liquid or gaseous
oxygen. - ANS Liquid oxygen (LOX) compatible materials
Liquid penetrant place on the surface of a specimen does not merely seep into discontinuities,
it is pulled into them by what? - ANS Capillary action
What are some methods of penetrant application? - ANS Spraying
Brushing
Immersion
Pouring
The period of time during which the penetrant is permitted to remain on the specimen -
ANS Dwell Time
Which penetrant is preferred for use on articles with a rough surface or one that contains
threads or keyways? - ANS Water-washable penetrant
What is the main disadvantage of water-washable penetrants? - ANS Poor reliability in
detecting wide or shallow discontinuities
Which penetrant method is difficult to use on rough surfaces, such as cast magnesium? -
ANS Solvent removable penetrant
This penetrant has a very high sensitivity for very fine discontinuities, but is difficult to remove
from threads, keyways, blind holes, and rough surfaces - ANS Post-emulsification
The use of liquid penetrant in this method is suited for finding leaks in such articles as tanks,
piping, tubing, and hollow castings. - ANS Leak-through technique
3 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
Contain a colored (usually red) dye - ANS Visible dye Penetrant
Contain a combination of visible and fluorescent dyes - ANS Dual Sensitivity Penetrants
Which process contains penetrants that are either self-emulsifying or removable with plain
water? - ANS Water-washable
Process that requires a separate emulsifier to make the penetrant water washable -
ANS Post-Emulsified Penetrants
Method where penetrants must be removed with a solvent which is typical when using visible
dye in pressurized spray cans. - ANS Solvent-removable penetrants
Penetrant testing is limited by its inability to test materials that have what types of
discontinuities? - ANS Continuities that:
-Are not open to the surface
-Have an extremely porous surface
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,This cleaning method is particularly effective in the removal of oil, grease, and similar organic
contamination. - ANS Vapor degreasing
This cleaning method is particularly adaptable to the cleaning of large, unwieldy articles. -
ANS Steam Cleaning
This cleaning method is effective for use on articles that have been ground or machined. This
process uses an acid or an alkaline solution to open up grinding burrs and remove metal from
surface discontinuities. - ANS Etching
Contain an emulsifying agent which makes them easily removable by a water rinse or wash.
This penetrant material can be obtained with either a visible or fluorescent dye. -
ANS Water-washable penetrants
Highly penetrating, oily visible or fluorescent penetrants which are not soluble in water. -
ANS Post-emulsifiable penetrants
Oily penetrants that do not contain an emulsifying agent - ANS Solvent-removable
penetrants
When applied to a penetrant-coated specimen, make the resultant mixture removable by water
rinse or wash. (they have low penetrant characteristics) - ANS Emulsifiers
A fluffy, absorbent white powder, that is used in both fluorescent and visible dye penetrant
tests. - ANS Dry developers
type of developer where the developer powder is mixed with a rapid-drying liquid solvent -
ANS Non-aqueous wet developer
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Must be used when articles inspected are subjected to contact with either liquid or gaseous
oxygen. - ANS Liquid oxygen (LOX) compatible materials
Liquid penetrant place on the surface of a specimen does not merely seep into discontinuities,
it is pulled into them by what? - ANS Capillary action
What are some methods of penetrant application? - ANS Spraying
Brushing
Immersion
Pouring
The period of time during which the penetrant is permitted to remain on the specimen -
ANS Dwell Time
Which penetrant is preferred for use on articles with a rough surface or one that contains
threads or keyways? - ANS Water-washable penetrant
What is the main disadvantage of water-washable penetrants? - ANS Poor reliability in
detecting wide or shallow discontinuities
Which penetrant method is difficult to use on rough surfaces, such as cast magnesium? -
ANS Solvent removable penetrant
This penetrant has a very high sensitivity for very fine discontinuities, but is difficult to remove
from threads, keyways, blind holes, and rough surfaces - ANS Post-emulsification
The use of liquid penetrant in this method is suited for finding leaks in such articles as tanks,
piping, tubing, and hollow castings. - ANS Leak-through technique
3 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
