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ASNT ULTRASONIC LEVEL I EXAM NEWEST
2025/2026 ACTUAL EXAM COMPLETE 170
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
The indication on the instrument display that represents the far
boundary of the material being tested is called: the back surface
reflection.
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: angulation.
The technical name for the cable that connects the ultrasonic
instrument to the transducer is: conduit.
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The process of standardizing an instrument or device by using a
reference standard is called: calibration. Another name for a
compressional wave is: longitudinal wave
Another name for Rayleigh waves is: surface
waves
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: couplant
The piezoelectric material in a transducer that vibrates to
produce ultrasonic waves is called a:
crystal
Ultrasonic testing of material where the probe is in direct contact
with the material being tested may be:
straight beam testing
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An advantage of using lithium sulfate in transducers is that it:
is one of the most efficient receivers of ultrasonic energy.
The transducer shown in figure 1 is used for: straight
beam testing
The transducer that contains the thinnest piezoelectric crystal is:
a: 1 MHz b:
5 MHz c:
15 MHz d:
25 MHz
25mhz
The amount of beam divergence from a crystal is primarily
dependent on the:
frequency and crystal size
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 a: 1 MHz b: 2.25 MHz
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c: 5 MHz d:
10 Mhz
1 Mhz
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: refraction
In figure 3, indication D represents the:
A: first discontinuity indication
B: first back surface reflection C:
second front surface indication D:
second discontinuity indication first
back surface reflection
In figure 3, the distance between indications A and B represents
the:
Water distance from the transducer to the block
ASNT ULTRASONIC LEVEL I EXAM NEWEST
2025/2026 ACTUAL EXAM COMPLETE 170
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
The indication on the instrument display that represents the far
boundary of the material being tested is called: the back surface
reflection.
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: angulation.
The technical name for the cable that connects the ultrasonic
instrument to the transducer is: conduit.
,2 | Page
The process of standardizing an instrument or device by using a
reference standard is called: calibration. Another name for a
compressional wave is: longitudinal wave
Another name for Rayleigh waves is: surface
waves
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: couplant
The piezoelectric material in a transducer that vibrates to
produce ultrasonic waves is called a:
crystal
Ultrasonic testing of material where the probe is in direct contact
with the material being tested may be:
straight beam testing
,3 | Page
An advantage of using lithium sulfate in transducers is that it:
is one of the most efficient receivers of ultrasonic energy.
The transducer shown in figure 1 is used for: straight
beam testing
The transducer that contains the thinnest piezoelectric crystal is:
a: 1 MHz b:
5 MHz c:
15 MHz d:
25 MHz
25mhz
The amount of beam divergence from a crystal is primarily
dependent on the:
frequency and crystal size
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 a: 1 MHz b: 2.25 MHz
, 4 | Page
c: 5 MHz d:
10 Mhz
1 Mhz
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: refraction
In figure 3, indication D represents the:
A: first discontinuity indication
B: first back surface reflection C:
second front surface indication D:
second discontinuity indication first
back surface reflection
In figure 3, the distance between indications A and B represents
the:
Water distance from the transducer to the block
