Liquid Penetrant Testing Level 1
Question and Answer Guide 2026 Exam
1. 1. The most widely accepted method for removing ex- Answer
cess water - washable penetrant from the surface of a B. By means of a water
test specimen is: spray rinse
A. By means of a wet rag
B. By means of a water spray rinse
C. By washing the part directly under water running
from a tap
D. By immersing the part in water
2. 2. A generally accepted method for removing excess Answer
nonwater - washable penetrant is D. Wiping and cautiously
cleaning the test specimen
A. Rapidly dipping the test specimen in a cleaner with a cleaner damped
B. Soaking the test specimen in hot detergent water cloth
C. Blowing the excess penetrant off the surface of the
parts with compressed air
D. Wiping and cautiously cleaning the test specimen
with a cleaner damp cloth
3. 3. Which of the following could be a source of false Answer
indications on a test specimen D. All the above
A. Penetrant on the test table
B. Penetrant on the hands of the inspector
C. Contamination of dry or wet developer with pene-
trant
D. All the above
4. 4. Which of the following is not a property of a devel- Answer
oper used in liquid penetrant dye testing C. The material must be
fluorescent if used with
A. The material must be absorptive fluorescent penetrants
, Liquid Penetrant Testing Level 1
Question and Answer Guide 2026 Exam
B. The material must form Nathan and uniform coding
over a surface
C. The material must be fluorescent if used with fluo-
rescent penetrants
D. The material must not contain ingredients harmful
or toxic to the operator
5. 5. Developers, improperly used Answer
D. All the above
A. May obscure indications
B. May be difficult to remove
C. May become contaminated
D. All of the above
6. 6. Which of the following is a possible cause for false Answer
penetrant indications? D. Lint or dirt
A. Excessive washing
B. Inadequate application of developers
C. Penetrant or part too cold during penetration
D. Lint or dirt
7. 7. Which of the following is not a form in which pene- Answer
trant developer is commonly available? D. High viscosity developer
A. Dry developer
B. Non-Aqueous developer
C. Wet developer
D. Hi viscosity developer
8. 8. When removing excess penetrant from the surface Answer
of the test specimen D. All the above
Question and Answer Guide 2026 Exam
1. 1. The most widely accepted method for removing ex- Answer
cess water - washable penetrant from the surface of a B. By means of a water
test specimen is: spray rinse
A. By means of a wet rag
B. By means of a water spray rinse
C. By washing the part directly under water running
from a tap
D. By immersing the part in water
2. 2. A generally accepted method for removing excess Answer
nonwater - washable penetrant is D. Wiping and cautiously
cleaning the test specimen
A. Rapidly dipping the test specimen in a cleaner with a cleaner damped
B. Soaking the test specimen in hot detergent water cloth
C. Blowing the excess penetrant off the surface of the
parts with compressed air
D. Wiping and cautiously cleaning the test specimen
with a cleaner damp cloth
3. 3. Which of the following could be a source of false Answer
indications on a test specimen D. All the above
A. Penetrant on the test table
B. Penetrant on the hands of the inspector
C. Contamination of dry or wet developer with pene-
trant
D. All the above
4. 4. Which of the following is not a property of a devel- Answer
oper used in liquid penetrant dye testing C. The material must be
fluorescent if used with
A. The material must be absorptive fluorescent penetrants
, Liquid Penetrant Testing Level 1
Question and Answer Guide 2026 Exam
B. The material must form Nathan and uniform coding
over a surface
C. The material must be fluorescent if used with fluo-
rescent penetrants
D. The material must not contain ingredients harmful
or toxic to the operator
5. 5. Developers, improperly used Answer
D. All the above
A. May obscure indications
B. May be difficult to remove
C. May become contaminated
D. All of the above
6. 6. Which of the following is a possible cause for false Answer
penetrant indications? D. Lint or dirt
A. Excessive washing
B. Inadequate application of developers
C. Penetrant or part too cold during penetration
D. Lint or dirt
7. 7. Which of the following is not a form in which pene- Answer
trant developer is commonly available? D. High viscosity developer
A. Dry developer
B. Non-Aqueous developer
C. Wet developer
D. Hi viscosity developer
8. 8. When removing excess penetrant from the surface Answer
of the test specimen D. All the above
