ASNT ULTRASONIC LEVEL I EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 170 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Far boundary indication - (answers)The indication on the instrument display that represents the
far boundary of the material being tested.
Immersion testing - (answers)The position of the transducer is often varied to transmit sound into
the test part at various angles to the front surface.
Coaxial cable - (answers)The cable that connects the ultrasonic instrument to the transducer is
specially designed so that one conductor is centered inside another.
Calibration - (answers)The process of comparing an instrument or device with a standard.
Compressional wave - (answers)Another name for a longitudinal wave.
Rayleigh wave - (answers)Another name for surface waves.
Couplant - (answers)A material used between the face of a transducer and the test surface to
permit or improve the transmission 你是想要一篇“眼睛容易
of ultrasonic vibrations.
阅读的”中文文章
Piezoelectric material - (answers)The material in a transducer that vibrates to produce ultrasonic
waves.
Ultrasonic testing - (answers)Testing of material where the transducer is in direct contact with
the material being tested.
Lithium sulfate - (answers)An advantage of using lithium sulfate in transducers is that it is one of
the most efficient generators of ultrasonic energy.
,Transducer frequency - (answers)The transducer that contains the thinnest piezoelectric crystal is
a 25 MHz transducer.
Beam divergence - (answers)The amount of beam divergence from a crystal is primarily
dependent on the frequency and crystal size.
Refraction - (answers)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.
Indication A - (answers)Represents the initial pulse or front surface indication in Figure 2.
Indication B - (answers)Represents the first discontinuity indication in Figure 2.
Indication C - (answers)Represents the second back surface reflection in Figure 2.
Indication D - (answers)Represents the second indication of the discontinuity in Figure 2.
Indication E - (answers)Represents the second back surface reflection in Figure 2.
Velocity of surface waves - (answers)Approximately
你是想要一篇“眼睛容易 _________ the velocity of shear waves in
the same material.
阅读的”中文文章
Indication A - (answers)The first front surface indication.
Indication B - (answers)First back surface reflection.
Indication C - (answers)First discontinuity reflection.
Indication D - (answers)Second discontinuity indication.
, Distance between indications A and B - (answers)The distance from the front surface of the
aluminum block to the discontinuity.
Best resolving power frequency - (answers)5 MHz.
Greatest sound attenuation material - (answers)A coarse-grained casting.
Entry surface indication in contact testing - (answers)The initial pulse.
Ultrasonic instrument display pattern with low-level indications - (answers)Could be caused by a
gas pocket.
Test method with two transducers - (answers)Through-transmission testing.
Number of complete waves in a given period - (answers)Frequency of a wave motion.
Boundary between two materials - (answers)An interface.
Longitudinal wave - (answers)When the motion of the particles of a medium is parallel to the
direction of propagation. 你是想要一篇“眼睛容易
阅读的”中文文章
Shear wave - (answers)When the motion of the particles of a medium is transverse to the
direction of propagation.
25 million cycles per second - (answers)Can also be stated as 25 MHz.
Moving a transducer over a test surface - (answers)Scanning.
Rate at which sound waves pass through substances - (answers)Velocity.
COMPLETE 170 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Far boundary indication - (answers)The indication on the instrument display that represents the
far boundary of the material being tested.
Immersion testing - (answers)The position of the transducer is often varied to transmit sound into
the test part at various angles to the front surface.
Coaxial cable - (answers)The cable that connects the ultrasonic instrument to the transducer is
specially designed so that one conductor is centered inside another.
Calibration - (answers)The process of comparing an instrument or device with a standard.
Compressional wave - (answers)Another name for a longitudinal wave.
Rayleigh wave - (answers)Another name for surface waves.
Couplant - (answers)A material used between the face of a transducer and the test surface to
permit or improve the transmission 你是想要一篇“眼睛容易
of ultrasonic vibrations.
阅读的”中文文章
Piezoelectric material - (answers)The material in a transducer that vibrates to produce ultrasonic
waves.
Ultrasonic testing - (answers)Testing of material where the transducer is in direct contact with
the material being tested.
Lithium sulfate - (answers)An advantage of using lithium sulfate in transducers is that it is one of
the most efficient generators of ultrasonic energy.
,Transducer frequency - (answers)The transducer that contains the thinnest piezoelectric crystal is
a 25 MHz transducer.
Beam divergence - (answers)The amount of beam divergence from a crystal is primarily
dependent on the frequency and crystal size.
Refraction - (answers)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.
Indication A - (answers)Represents the initial pulse or front surface indication in Figure 2.
Indication B - (answers)Represents the first discontinuity indication in Figure 2.
Indication C - (answers)Represents the second back surface reflection in Figure 2.
Indication D - (answers)Represents the second indication of the discontinuity in Figure 2.
Indication E - (answers)Represents the second back surface reflection in Figure 2.
Velocity of surface waves - (answers)Approximately
你是想要一篇“眼睛容易 _________ the velocity of shear waves in
the same material.
阅读的”中文文章
Indication A - (answers)The first front surface indication.
Indication B - (answers)First back surface reflection.
Indication C - (answers)First discontinuity reflection.
Indication D - (answers)Second discontinuity indication.
, Distance between indications A and B - (answers)The distance from the front surface of the
aluminum block to the discontinuity.
Best resolving power frequency - (answers)5 MHz.
Greatest sound attenuation material - (answers)A coarse-grained casting.
Entry surface indication in contact testing - (answers)The initial pulse.
Ultrasonic instrument display pattern with low-level indications - (answers)Could be caused by a
gas pocket.
Test method with two transducers - (answers)Through-transmission testing.
Number of complete waves in a given period - (answers)Frequency of a wave motion.
Boundary between two materials - (answers)An interface.
Longitudinal wave - (answers)When the motion of the particles of a medium is parallel to the
direction of propagation. 你是想要一篇“眼睛容易
阅读的”中文文章
Shear wave - (answers)When the motion of the particles of a medium is transverse to the
direction of propagation.
25 million cycles per second - (answers)Can also be stated as 25 MHz.
Moving a transducer over a test surface - (answers)Scanning.
Rate at which sound waves pass through substances - (answers)Velocity.
