ASNT ULTRASONIC LEVEL I EXAM LATEST 2025/2026
COMPLETE QUESTIONS and CORRECT DETAILED
ANSWERS ALREADY GRADED A+|ASSURED SUCCESS
1. On the area-amplitude ultrasonic standard test blocks, the flat-bottom holes in
the blocks are: - CORRECT ANSWER-different in diameter, increasing by 0.4
mm (0.016 in.) increments from the No. 1 block to the No. 8 block.
2. In immersion testing, verification that the transducer is normal to a flat entry
surface is indicated by: - CORRECT ANSWER-maximum reflection from the
entry surface.
3. The indication on the instrument display that represents the far boundary of
material being tested is called: - CORRECT ANSWER-the back-surface
reflection.
2. In immersion testing, the position of the transducer is often varied by a
manipulator to transmit sound into the test part at various angles to the front
surface. Such a procedure is referred to as: - CORRECT ANSWER-angulation.
,4. The technical name for the cable that connects the ultrasonic instrument to the
transducer is: - CORRECT ANSWER-coaxial cable
5. The process of standardizing an instrument or device by using a reference
standard is called: - CORRECT ANSWER-calibration.
6. Another name for a compressional wave is: - CORRECT ANSWER-
longitudinal wave.
7. Another name for rayleigh waves is : - CORRECT ANSWER-surface waves.
8. A material used between the face of a transducer and the test surface to
permit or improve the transmission of ultrasonic vibrations from the transducer
to the material being tested is called: - CORRECT ANSWER-a couplant.
9. The piezoelectric material in a transducer that vibrates to produce ultrasonic
waves is called a - CORRECT ANSWER-crystal.
10. Ultrasonic testing of material where the probe is in direct contact with the
material being tested may be: - CORRECT ANSWER-straight beam testing.
, 11. An advantage of using lithium sulfate in transducers is that it: - CORRECT
ANSWER-is one of the most efficient receivers of ultrasonic energy
12. The transducer that contains the thinnest piezoelectric crystal is a: -
CORRECT ANSWER-25 MHz transducer
13. Penetration of ultrasonic waves in a material is normally the function of test
frequency used. The greatest depth of penetration is provided by a frequency of -
CORRECT ANSWER-1 MHz
14. The amount of beam divergence from a crystal is primarily dependent on the -
CORRECT ANSWER-frequency and crystal size.
15. When an ultrasonic beam passes through the interface between two
dissimilar materials at an angle, a new angle of sound travel takes place in the
second material due to: - CORRECT ANSWER-refraction.
21. The velocity of longitudinal waves is approximately __________ the velocity of
shear waves in the same material. - CORRECT ANSWER-two times
COMPLETE QUESTIONS and CORRECT DETAILED
ANSWERS ALREADY GRADED A+|ASSURED SUCCESS
1. On the area-amplitude ultrasonic standard test blocks, the flat-bottom holes in
the blocks are: - CORRECT ANSWER-different in diameter, increasing by 0.4
mm (0.016 in.) increments from the No. 1 block to the No. 8 block.
2. In immersion testing, verification that the transducer is normal to a flat entry
surface is indicated by: - CORRECT ANSWER-maximum reflection from the
entry surface.
3. The indication on the instrument display that represents the far boundary of
material being tested is called: - CORRECT ANSWER-the back-surface
reflection.
2. In immersion testing, the position of the transducer is often varied by a
manipulator to transmit sound into the test part at various angles to the front
surface. Such a procedure is referred to as: - CORRECT ANSWER-angulation.
,4. The technical name for the cable that connects the ultrasonic instrument to the
transducer is: - CORRECT ANSWER-coaxial cable
5. The process of standardizing an instrument or device by using a reference
standard is called: - CORRECT ANSWER-calibration.
6. Another name for a compressional wave is: - CORRECT ANSWER-
longitudinal wave.
7. Another name for rayleigh waves is : - CORRECT ANSWER-surface waves.
8. A material used between the face of a transducer and the test surface to
permit or improve the transmission of ultrasonic vibrations from the transducer
to the material being tested is called: - CORRECT ANSWER-a couplant.
9. The piezoelectric material in a transducer that vibrates to produce ultrasonic
waves is called a - CORRECT ANSWER-crystal.
10. Ultrasonic testing of material where the probe is in direct contact with the
material being tested may be: - CORRECT ANSWER-straight beam testing.
, 11. An advantage of using lithium sulfate in transducers is that it: - CORRECT
ANSWER-is one of the most efficient receivers of ultrasonic energy
12. The transducer that contains the thinnest piezoelectric crystal is a: -
CORRECT ANSWER-25 MHz transducer
13. Penetration of ultrasonic waves in a material is normally the function of test
frequency used. The greatest depth of penetration is provided by a frequency of -
CORRECT ANSWER-1 MHz
14. The amount of beam divergence from a crystal is primarily dependent on the -
CORRECT ANSWER-frequency and crystal size.
15. When an ultrasonic beam passes through the interface between two
dissimilar materials at an angle, a new angle of sound travel takes place in the
second material due to: - CORRECT ANSWER-refraction.
21. The velocity of longitudinal waves is approximately __________ the velocity of
shear waves in the same material. - CORRECT ANSWER-two times
