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CWB 2 ALL MODULES EXAM LATEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
An ultrasonic beam changes angle (refracts) when it travels from
a plastic probe into a steel specimen because:
A) The wave velocity is different in steel than in plastic
B) The frequency is different in steel than in plastic
C) Only transverse waves can travel in steel
D) The angle does not change
E) The amplitude is reduced by attenuation - ANSWER-A) The
wave velocity is different in steel than in plastic
If you are examining a groove weld in a plate from one surface
with an angle probe, you would examine the upper portion of the
weld by:
A) Placing the probe on the weld reinforcement
B) Moving the probe as close as possible to the weld
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C) Using a normal probe close to the edge of the weld
D) Moving the probe away from the weld so the beam bounces off
the lower surface to strike the upper portion of the weld
E) None of the above. The upper portion cannot be examined -
ANSWER-D) Moving the probe away from the weld so the beam
bounces off the lower surface to strike the upper portion of the
weld
The first item that should be checked or calibrated on an angle
probe is:
A) Wavelength
B) Angle
C) Linearity
D) Exit (index point)
Not applicable. Calibration is not necessary - ANSWER-D) Exit
(index point)
Sounds detectable by human ear are in the range of:
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A) 1 to 10 nHz
B) 1,000 to 10,000 cycles per second
C) 20 to 20,000 cycles per second
D) 20 kHz to 2,000 kHz - ANSWER-C) 20 to 20,000 cycles per
second
Ultrasonic testing frequencies are in the range of:
A) 50 to 500MHz
B) 2.25 to 10 MHz
C) 500 kHz to 5,000 MHz
D 500 kHz to 15 MHz - ANSWER-C) 500 kHz to 5,000 MHz
Characteristics of a wave propagating through material are:
A) Wavelength, velocity and frequency
B) Density, colour, and weight
C) Melleability, hardness, and toughness
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D) Frequency, Velocity, and surface finish - ANSWER-A)
Wavelength, velocity and frequency
Non-uniform stress in a rod is given by:
A) The load multiplied by the cross section area of the rod
B) The cross-sectional area of the rod divided by the load
C) The load divided by the cross-sectional area of the rod
D) Cannot be simply calculated - ANSWER-D) Cannot be simply
calculated
Strain in a body is the:
A) Extension divided by the original length
B) Extension multiplied by the original length
C) Original length multiplied by the extension
D) Original length divided by the extension - ANSWER-A)
Extension divided by the original length
CWB 2 ALL MODULES EXAM LATEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
An ultrasonic beam changes angle (refracts) when it travels from
a plastic probe into a steel specimen because:
A) The wave velocity is different in steel than in plastic
B) The frequency is different in steel than in plastic
C) Only transverse waves can travel in steel
D) The angle does not change
E) The amplitude is reduced by attenuation - ANSWER-A) The
wave velocity is different in steel than in plastic
If you are examining a groove weld in a plate from one surface
with an angle probe, you would examine the upper portion of the
weld by:
A) Placing the probe on the weld reinforcement
B) Moving the probe as close as possible to the weld
,2|Page
C) Using a normal probe close to the edge of the weld
D) Moving the probe away from the weld so the beam bounces off
the lower surface to strike the upper portion of the weld
E) None of the above. The upper portion cannot be examined -
ANSWER-D) Moving the probe away from the weld so the beam
bounces off the lower surface to strike the upper portion of the
weld
The first item that should be checked or calibrated on an angle
probe is:
A) Wavelength
B) Angle
C) Linearity
D) Exit (index point)
Not applicable. Calibration is not necessary - ANSWER-D) Exit
(index point)
Sounds detectable by human ear are in the range of:
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A) 1 to 10 nHz
B) 1,000 to 10,000 cycles per second
C) 20 to 20,000 cycles per second
D) 20 kHz to 2,000 kHz - ANSWER-C) 20 to 20,000 cycles per
second
Ultrasonic testing frequencies are in the range of:
A) 50 to 500MHz
B) 2.25 to 10 MHz
C) 500 kHz to 5,000 MHz
D 500 kHz to 15 MHz - ANSWER-C) 500 kHz to 5,000 MHz
Characteristics of a wave propagating through material are:
A) Wavelength, velocity and frequency
B) Density, colour, and weight
C) Melleability, hardness, and toughness
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D) Frequency, Velocity, and surface finish - ANSWER-A)
Wavelength, velocity and frequency
Non-uniform stress in a rod is given by:
A) The load multiplied by the cross section area of the rod
B) The cross-sectional area of the rod divided by the load
C) The load divided by the cross-sectional area of the rod
D) Cannot be simply calculated - ANSWER-D) Cannot be simply
calculated
Strain in a body is the:
A) Extension divided by the original length
B) Extension multiplied by the original length
C) Original length multiplied by the extension
D) Original length divided by the extension - ANSWER-A)
Extension divided by the original length
