ASNT ULTRASONIC LEVEL II EXAM 2025 | NEWEST VERSION | COMPLETE QUESTION SET WITH
ACCURATE & COMPREHENSIVE VERIFIED ANSWERS | 100% CORRECT | GRADED A+
Which of the following would be considered application(s) of ultrasonic techniques
A. Determination of a material's elastic modules
B. Study of a material's metallurgical structure
C. Measurement of a material's thickness
D. All if the above
D. All of the above
Which best describes a typical display of a crack whose major surface is perpendicular to the
ultrasonic beam
A. a broad indication
B. a sharp indication
c. the indication will not show due to improper orientation
d. a broad indication with high amplitude
B. a sharp indication
A primary purpose of a reference standard is
A. To provide a guide for adjusting instrument controls to reveal discontinuities that are considered
harmful to the end use of the product
B. To give the technician a tool for determining exact discontinuities size
C. To provide assurance that all discontinuities smaller than a certain specified reference reflector are
capable of being directed by the test
D. To provide a standard reflector which exactly simulates natural discontinuities of a critical size
A. To provide a guide for adjusting instrument controls to reveal discontinuities that are considered
harmful to the end use of the product
Compensation for the variation in echo height related to variations in discontinuity depth in a known
material is known as
A. Transfer
B. Attenuation
C. Distance Amplitude Correction (DAC)
D. Interpretation
C. Distance Amplitude Correction (DAC)
Which of the following is a reference reflector that is not dependent on beam angle
A. A flat bottom hole
B. A vee notch
C. A side drilled hole which is parallel to the plate surface and perpendicular to the sound path
D. A disc shaped laminar reflector
C. A side drilled hole which is parallel to the plate surface and perpendicular to the sound path
,During a straight beam ultrasonic test, a discontinuity indication is detected that is small in amplitude
compared to the loss in amplitude of back reflection. the orientation of this discontinuities is probably
A. Parallel to the test surface
B. Perpendicular to the sound beam
C. parallel to the sound beam
D. At an angle to the test surface
D. At an angle to the test surface
A discontinuity is located having an orientation such that its long axis is parallel to the sound beam.
The indication from such a discontinuity will be
A. Large in proportion to the length of the discontinuity
B. Small to proportion to the length of the discontinuity
C. Representative of the length of the discontinuity
D. Such that complete loss of back reflection will result
B. Small to proportion to the length of the discontinuity
The only significant sound wave mode that travels through a liquid is
A. Shear Wave
B. Longitudinal Wave
C. Surface Wave
D. Rayleigh Wave
B. Longitudinal Wave
The acoustic impedance of a material is used to determine the
A. Angle of refraction at an interface
B. Attenuation within the material
C. Relative amounts of sound energy coupled through and reflected at the interface
D. Beam spread within the material
C. Relative amounts of sound energy coupled through and reflected at the interface
When angle beam contact testing a test piece, increasing the incident angle until the second critical
angle is reached results in
A. Total reflection of a surface wave
B. 45 degree refraction of the shear waves
C. Production of a surface wave
D. None of the above
C. Production of a surface wave
Acoustic energy propagates in different modes. Which of the following represents a mode?
A. Longitudinal Wave
B. Shear Wave
C. Surface Wave
D. All of the above
,D. All of the above
The simple experiment where a stick in a glass of water appears disjointed at the water surface
illustrates the phenomenon of
A. Reflection
B. Magnification
C. Refraction
D. Diffraction
C. Refraction
The crystal thickness and transducer frequency are related. The thinner the crystal
A. Lower the frequency
B. The high the frequency
C. There is no appreciable affect
D. None of the above
B. The high the frequency
The random distribution of crystallographic direction in alloys with large crystalline structures in a
factor in determining
A. Acoustic noise levels
B. Selection of test frequency
C. Scattering of sound
D. All of the above
D. All of the above
The length of the zone adjacent to a transducer in which functions in sound pressure occur is mostly
affected by
A. The frequency of the transducer
B. The Diameter of the transducer
C. The length of the transducer cable
D. A and B
D. A and B
The differences in signals received from identical reflectors at different material distances from a
transducer may be caused by
A. Material attenuation
B. Beam Divergence
C. Near field effects
D. All of the above
D. All of the above
It is possible for a discontinuity smaller than the transducer to produce indications of functioning
amplitude as the transducer is moved laterally if testing is being performed in the
A. Fraunhofer zone
, B. Near Field
C. Snell Field
D. Shadow Zone
B. Near Field
In Immersion testing the near field effects of a transducer may be eliminated by
A. Increasing transducer frequency
B. Using the larger diameter transducer
C. Using an appropriate water path
D. Using a focused transducer
C. Using an appropriate water path
In figures 1, assuming a uniform beam pattern, what relationship would you expect to exist between
the amplitudes of the reflected laminar signals at position A and B
A. 12 dB difference
B. Equal amplitude
C. 2 to 1
D. 3 to 1
C. 2 to 1
In the fare field of a uniform ultrasonic beam, sound intensity is ________ the beam centerline
A. Minimum at
B. Maximum at
C. Maximum throughout twice the angle (sin Y=c/df)
D. Not related to orientation of
B. Maximum at
Which of the following may result in a long narrow rod if the beam divergence results in a reflection
from a side of the test piece before the sound wave reaches the back surface
A. Multiple indications before the first back reflection
B. Indications from multiple surface reflections
C. Conversion from the longitudinal mode to shear mode
D. Loss of front surface indications
C. Conversions from the longitudinal mode to shear mode
Where does beam divergence occur?
a. near field
b. far field
c. at the crystal
d. none of the above
b. far field
ACCURATE & COMPREHENSIVE VERIFIED ANSWERS | 100% CORRECT | GRADED A+
Which of the following would be considered application(s) of ultrasonic techniques
A. Determination of a material's elastic modules
B. Study of a material's metallurgical structure
C. Measurement of a material's thickness
D. All if the above
D. All of the above
Which best describes a typical display of a crack whose major surface is perpendicular to the
ultrasonic beam
A. a broad indication
B. a sharp indication
c. the indication will not show due to improper orientation
d. a broad indication with high amplitude
B. a sharp indication
A primary purpose of a reference standard is
A. To provide a guide for adjusting instrument controls to reveal discontinuities that are considered
harmful to the end use of the product
B. To give the technician a tool for determining exact discontinuities size
C. To provide assurance that all discontinuities smaller than a certain specified reference reflector are
capable of being directed by the test
D. To provide a standard reflector which exactly simulates natural discontinuities of a critical size
A. To provide a guide for adjusting instrument controls to reveal discontinuities that are considered
harmful to the end use of the product
Compensation for the variation in echo height related to variations in discontinuity depth in a known
material is known as
A. Transfer
B. Attenuation
C. Distance Amplitude Correction (DAC)
D. Interpretation
C. Distance Amplitude Correction (DAC)
Which of the following is a reference reflector that is not dependent on beam angle
A. A flat bottom hole
B. A vee notch
C. A side drilled hole which is parallel to the plate surface and perpendicular to the sound path
D. A disc shaped laminar reflector
C. A side drilled hole which is parallel to the plate surface and perpendicular to the sound path
,During a straight beam ultrasonic test, a discontinuity indication is detected that is small in amplitude
compared to the loss in amplitude of back reflection. the orientation of this discontinuities is probably
A. Parallel to the test surface
B. Perpendicular to the sound beam
C. parallel to the sound beam
D. At an angle to the test surface
D. At an angle to the test surface
A discontinuity is located having an orientation such that its long axis is parallel to the sound beam.
The indication from such a discontinuity will be
A. Large in proportion to the length of the discontinuity
B. Small to proportion to the length of the discontinuity
C. Representative of the length of the discontinuity
D. Such that complete loss of back reflection will result
B. Small to proportion to the length of the discontinuity
The only significant sound wave mode that travels through a liquid is
A. Shear Wave
B. Longitudinal Wave
C. Surface Wave
D. Rayleigh Wave
B. Longitudinal Wave
The acoustic impedance of a material is used to determine the
A. Angle of refraction at an interface
B. Attenuation within the material
C. Relative amounts of sound energy coupled through and reflected at the interface
D. Beam spread within the material
C. Relative amounts of sound energy coupled through and reflected at the interface
When angle beam contact testing a test piece, increasing the incident angle until the second critical
angle is reached results in
A. Total reflection of a surface wave
B. 45 degree refraction of the shear waves
C. Production of a surface wave
D. None of the above
C. Production of a surface wave
Acoustic energy propagates in different modes. Which of the following represents a mode?
A. Longitudinal Wave
B. Shear Wave
C. Surface Wave
D. All of the above
,D. All of the above
The simple experiment where a stick in a glass of water appears disjointed at the water surface
illustrates the phenomenon of
A. Reflection
B. Magnification
C. Refraction
D. Diffraction
C. Refraction
The crystal thickness and transducer frequency are related. The thinner the crystal
A. Lower the frequency
B. The high the frequency
C. There is no appreciable affect
D. None of the above
B. The high the frequency
The random distribution of crystallographic direction in alloys with large crystalline structures in a
factor in determining
A. Acoustic noise levels
B. Selection of test frequency
C. Scattering of sound
D. All of the above
D. All of the above
The length of the zone adjacent to a transducer in which functions in sound pressure occur is mostly
affected by
A. The frequency of the transducer
B. The Diameter of the transducer
C. The length of the transducer cable
D. A and B
D. A and B
The differences in signals received from identical reflectors at different material distances from a
transducer may be caused by
A. Material attenuation
B. Beam Divergence
C. Near field effects
D. All of the above
D. All of the above
It is possible for a discontinuity smaller than the transducer to produce indications of functioning
amplitude as the transducer is moved laterally if testing is being performed in the
A. Fraunhofer zone
, B. Near Field
C. Snell Field
D. Shadow Zone
B. Near Field
In Immersion testing the near field effects of a transducer may be eliminated by
A. Increasing transducer frequency
B. Using the larger diameter transducer
C. Using an appropriate water path
D. Using a focused transducer
C. Using an appropriate water path
In figures 1, assuming a uniform beam pattern, what relationship would you expect to exist between
the amplitudes of the reflected laminar signals at position A and B
A. 12 dB difference
B. Equal amplitude
C. 2 to 1
D. 3 to 1
C. 2 to 1
In the fare field of a uniform ultrasonic beam, sound intensity is ________ the beam centerline
A. Minimum at
B. Maximum at
C. Maximum throughout twice the angle (sin Y=c/df)
D. Not related to orientation of
B. Maximum at
Which of the following may result in a long narrow rod if the beam divergence results in a reflection
from a side of the test piece before the sound wave reaches the back surface
A. Multiple indications before the first back reflection
B. Indications from multiple surface reflections
C. Conversion from the longitudinal mode to shear mode
D. Loss of front surface indications
C. Conversions from the longitudinal mode to shear mode
Where does beam divergence occur?
a. near field
b. far field
c. at the crystal
d. none of the above
b. far field
