ASNT LEVEL III BASIC PRACTICE
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ 25 MHz.
Answer: WHich of the following frequencies would probably result in the
greatest ultrasonic attenuation losses?a. 1.0 MHzb. 2.25 MHzc. 10 MHzd.
25 MHz
◍ Flammability is where.
Answer: The liquid ignites
◍ A pressure gage usually used in which of the following method?.
Answer: (LT)Leak Testing
◍ Bonding on brazes is best inspected.
Answer: VisualNote: If RT available that would be the best choice
◍ Almost completely negligible.
Answer: The unique and important properties of the neutron in neutron
radiography comes primarily from the fact that it is a nuclear particle that is
electrically neutral. The lack of electric charge means that its electrostatic
interaction with the atom's electrons is:a. Almost complteb. Scatteredc.
Almost completely negligibled. Such that the electrons and neutrons
combine with each other
◍ Oldest, most basic form of welding?.
Answer: Heliarc
◍ In RT, an intensity at 25" is 200 mR/Hr. What is the intensity at 150".
Answer: Inverse Square Law. 36 mR/hr
◍ 94 seconds.
, Answer: If an exposure time of 60 seconds and a source to film distance of 4
feet is necessary for a particular exposure, what exposure time would be
needed for an equivalent exposure if the source to film distance is changed
to 5 feet?a. 75 secondsb. 94 secondsc. 48 secondsd. 38 seconds
◍ What NDT uses mass spectrometer?.
Answer: Helium Leak testing
◍ What is the best possible conductor?.
Answer: Silver(pure)
◍ Longitudinal.
Answer: What is the orientation of most discontinuities found in groove
welds?a. Longitudinalb. Transversec. 45 degrees to the weld axisd.
Horizontal
◍ Certified individual.
Answer: SNT-TC-1A recommends a trainee should obtain work experience
by working with:a. ASNT Level III onlyb. SNT-TC-1A Level III onlyc.
Certified individuald. Trainee's direct supervisor
◍ A material has to be maintained at 350°
F. Why would it not be good to do a wet magnetic particle inspection if the
material was ferro magnetic?.
Answer: Suspension would evaporate andParticles would melt
◍ CP-189 has several requirements for an instructor. In SNT-TC-1A what do
you call an instructor?.
Answer: Not covered
◍ Suspensions.
Answer: What type of developers should be adequately agitated before
application to test parts?a. Dryb. Suspensionsc. Water solubled.
Emulsifiable
◍ Characteristic curve.
Answer: A curve relating density with the logarithm of exposure or of
, relative exposure is called an:a. Sensitivity curveb. Technique curvec.
Characteristic curved. X-ray intensity curve
◍ What is the required amperage to check a 1" thick weld with prod spacing of
5"?.
Answer: 500 amps
◍ In the casting cooling process dentrites are formed:.
Answer: By the grains getting smaller
◍ Fatigue testing.
Answer: Which of the following tests subjects a test sample to repeated
stresses in order to determine the number of cycles required to cause
failure?a. Fatigue testingb. Transverse rupture testingc. Shear testingd.
Creep testing
◍ What alloy element is good corrosion inhibitor?.
Answer: Chromium
◍ A type of metal insert is inserted into casting to support it. If it doesn't fuse
into the base metal, it is known as:.
Answer: Unfused chaplet
◍ A level 2 candidate obtains general and practical scores of 72% and 78%
respectfully. What scores is needed on the specific to pass the examination
series?.
Answer: 18/20Note: easiest way is to start with 240% as total composite
needed less 72% -78%-90%. Just needs to be a composite score total of 80%
◍ Prod separation.
Answer: When prods are used, the current is determined by the:a. Prod
separationb. Length of the partc. Diameter of the partd. Correct ampere
turns divided by the L/D ratio
◍ Photographic density.
Answer: The quantitative measure of film blackening is referred to as:a.
Definitionb. Photographic densityc. Film contrastd. Radiographic contrast
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ 25 MHz.
Answer: WHich of the following frequencies would probably result in the
greatest ultrasonic attenuation losses?a. 1.0 MHzb. 2.25 MHzc. 10 MHzd.
25 MHz
◍ Flammability is where.
Answer: The liquid ignites
◍ A pressure gage usually used in which of the following method?.
Answer: (LT)Leak Testing
◍ Bonding on brazes is best inspected.
Answer: VisualNote: If RT available that would be the best choice
◍ Almost completely negligible.
Answer: The unique and important properties of the neutron in neutron
radiography comes primarily from the fact that it is a nuclear particle that is
electrically neutral. The lack of electric charge means that its electrostatic
interaction with the atom's electrons is:a. Almost complteb. Scatteredc.
Almost completely negligibled. Such that the electrons and neutrons
combine with each other
◍ Oldest, most basic form of welding?.
Answer: Heliarc
◍ In RT, an intensity at 25" is 200 mR/Hr. What is the intensity at 150".
Answer: Inverse Square Law. 36 mR/hr
◍ 94 seconds.
, Answer: If an exposure time of 60 seconds and a source to film distance of 4
feet is necessary for a particular exposure, what exposure time would be
needed for an equivalent exposure if the source to film distance is changed
to 5 feet?a. 75 secondsb. 94 secondsc. 48 secondsd. 38 seconds
◍ What NDT uses mass spectrometer?.
Answer: Helium Leak testing
◍ What is the best possible conductor?.
Answer: Silver(pure)
◍ Longitudinal.
Answer: What is the orientation of most discontinuities found in groove
welds?a. Longitudinalb. Transversec. 45 degrees to the weld axisd.
Horizontal
◍ Certified individual.
Answer: SNT-TC-1A recommends a trainee should obtain work experience
by working with:a. ASNT Level III onlyb. SNT-TC-1A Level III onlyc.
Certified individuald. Trainee's direct supervisor
◍ A material has to be maintained at 350°
F. Why would it not be good to do a wet magnetic particle inspection if the
material was ferro magnetic?.
Answer: Suspension would evaporate andParticles would melt
◍ CP-189 has several requirements for an instructor. In SNT-TC-1A what do
you call an instructor?.
Answer: Not covered
◍ Suspensions.
Answer: What type of developers should be adequately agitated before
application to test parts?a. Dryb. Suspensionsc. Water solubled.
Emulsifiable
◍ Characteristic curve.
Answer: A curve relating density with the logarithm of exposure or of
, relative exposure is called an:a. Sensitivity curveb. Technique curvec.
Characteristic curved. X-ray intensity curve
◍ What is the required amperage to check a 1" thick weld with prod spacing of
5"?.
Answer: 500 amps
◍ In the casting cooling process dentrites are formed:.
Answer: By the grains getting smaller
◍ Fatigue testing.
Answer: Which of the following tests subjects a test sample to repeated
stresses in order to determine the number of cycles required to cause
failure?a. Fatigue testingb. Transverse rupture testingc. Shear testingd.
Creep testing
◍ What alloy element is good corrosion inhibitor?.
Answer: Chromium
◍ A type of metal insert is inserted into casting to support it. If it doesn't fuse
into the base metal, it is known as:.
Answer: Unfused chaplet
◍ A level 2 candidate obtains general and practical scores of 72% and 78%
respectfully. What scores is needed on the specific to pass the examination
series?.
Answer: 18/20Note: easiest way is to start with 240% as total composite
needed less 72% -78%-90%. Just needs to be a composite score total of 80%
◍ Prod separation.
Answer: When prods are used, the current is determined by the:a. Prod
separationb. Length of the partc. Diameter of the partd. Correct ampere
turns divided by the L/D ratio
◍ Photographic density.
Answer: The quantitative measure of film blackening is referred to as:a.
Definitionb. Photographic densityc. Film contrastd. Radiographic contrast
