ASNT PT LEVEL I+II | 150 ACTUAL
QUESTIONS AND CORRECT DETAILED
ANSWERS | SCORED A+ | NEW UPDATE 2025
Contain a colored (usually red) dye - ANSWER Visible dye Penetrant
Contain a combination of visible and fluorescent dyes - ANSWER Dual
Sensitivity Penetrants
Which process contains penetrants that are either self-emulsifying or removable
with plain water? - ANSWER Water-washable
Process that requires a separate emulsifier to make the penetrant water washable
- ANSWER Post-Emulsified Penetrants
Method where penetrants must be removed with a solvent which is typical when
using visible dye in pressurized spray cans. - ANSWER Solvent-removable
penetrants
Penetrant testing is limited by its inability to test materials that have what types of
discontinuities? - ANSWER Continuities that:
-Are not open to the surface
-Have an extremely porous surface
This cleaning method is particularly effective in the removal of oil, grease, and
similar organic contamination. - ANSWER Vapor degreasing
,This cleaning method is particularly adaptable to the cleaning of large, unwieldy
articles. - ANSWER 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. - ANSWER 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. - ANSWER Water-washable penetrants
Highly penetrating, oily visible or fluorescent penetrants which are not soluble in
water. - ANSWER Post-emulsifiable penetrants
Oily penetrants that do not contain an emulsifying agent - ANSWER 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) -
ANSWER Emulsifiers
A fluffy, absorbent white powder, that is used in both fluorescent and visible dye
penetrant tests. - ANSWER Dry developers
type of developer where the developer powder is mixed with a rapid-drying liquid
solvent - ANSWER Non-aqueous wet developer
, Must be used when articles inspected are subjected to contact with either liquid
or gaseous oxygen. - ANSWER 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? - ANSWER Capillary action
What are some methods of penetrant application? - ANSWER Spraying
Brushing
Immersion
Pouring
The period of time during which the penetrant is permitted to remain on the
specimen - ANSWER Dwell Time
Which penetrant is preferred for use on articles with a rough surface or one that
contains threads or keyways? - ANSWER Water-washable penetrant
What is the main disadvantage of water-washable penetrants? - ANSWER Poor
reliability in detecting wide or shallow discontinuities
Which penetrant method is difficult to use on rough surfaces, such as cast
magnesium? - ANSWER Solvent removable penetrant
QUESTIONS AND CORRECT DETAILED
ANSWERS | SCORED A+ | NEW UPDATE 2025
Contain a colored (usually red) dye - ANSWER Visible dye Penetrant
Contain a combination of visible and fluorescent dyes - ANSWER Dual
Sensitivity Penetrants
Which process contains penetrants that are either self-emulsifying or removable
with plain water? - ANSWER Water-washable
Process that requires a separate emulsifier to make the penetrant water washable
- ANSWER Post-Emulsified Penetrants
Method where penetrants must be removed with a solvent which is typical when
using visible dye in pressurized spray cans. - ANSWER Solvent-removable
penetrants
Penetrant testing is limited by its inability to test materials that have what types of
discontinuities? - ANSWER Continuities that:
-Are not open to the surface
-Have an extremely porous surface
This cleaning method is particularly effective in the removal of oil, grease, and
similar organic contamination. - ANSWER Vapor degreasing
,This cleaning method is particularly adaptable to the cleaning of large, unwieldy
articles. - ANSWER 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. - ANSWER 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. - ANSWER Water-washable penetrants
Highly penetrating, oily visible or fluorescent penetrants which are not soluble in
water. - ANSWER Post-emulsifiable penetrants
Oily penetrants that do not contain an emulsifying agent - ANSWER 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) -
ANSWER Emulsifiers
A fluffy, absorbent white powder, that is used in both fluorescent and visible dye
penetrant tests. - ANSWER Dry developers
type of developer where the developer powder is mixed with a rapid-drying liquid
solvent - ANSWER Non-aqueous wet developer
, Must be used when articles inspected are subjected to contact with either liquid
or gaseous oxygen. - ANSWER 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? - ANSWER Capillary action
What are some methods of penetrant application? - ANSWER Spraying
Brushing
Immersion
Pouring
The period of time during which the penetrant is permitted to remain on the
specimen - ANSWER Dwell Time
Which penetrant is preferred for use on articles with a rough surface or one that
contains threads or keyways? - ANSWER Water-washable penetrant
What is the main disadvantage of water-washable penetrants? - ANSWER Poor
reliability in detecting wide or shallow discontinuities
Which penetrant method is difficult to use on rough surfaces, such as cast
magnesium? - ANSWER Solvent removable penetrant
