NDT Ultrasonic Testing Test with all Correct & 100%
Verified Answers |Latest Version |Already Graded A+
The measure of how a signal from a defect compared to other background reflections is called?
✔Correct Answer-Signal to noise ratio
The ability to locate discontinuities that are close together within the material is called:
✔Correct Answer-Resolution
The combined effect of scattering and absorption is called: ✔Correct Answer-Attenuation
Which of the following could influence the behavior of a transducer: A: electrical Construction,
B: Material Construction, C: Mechanical construction, or D: All the above? ✔Correct Answer-
All the above (electrical construction, material construction, and mechanical construction)
When a wave encounters an interface at an oblique angle. What takes place at the interface due
to the different sound velocities of the two materials? ✔Correct Answer-Refraction
What part of the ultrasonic machine generates short, large-amplitude pulses of controlled
energy? ✔Correct Answer-Pulser
In the transverse or shear wave, the particles: ✔Correct Answer-Oscillate at a right angle to
the direction of wave propagation
Which type of calibration block closely resembles the miniature angle-beam block and is used in
a similar way? ✔Correct Answer-A DSC block
The total resistance that the cable presents to the electrical current passing through it is called:
✔Correct Answer-Impedance
Which type of screen presentation displays a profile or cross-sectional view of the test
specimen? ✔Correct Answer-B-Scan
Within a given material, the speed of sound: ✔Correct Answer-Is constant
The first critical angle describes the condition where: ✔Correct Answer-The angle of the
refracted longitudinal wave is exactly 90 degrees
Which of the following waves is able to follow a surface around a curve? ✔Correct Answer-A
surface wave
Resolution generally increases: ✔Correct Answer-With an increase in transducer frequency
Verified Answers |Latest Version |Already Graded A+
The measure of how a signal from a defect compared to other background reflections is called?
✔Correct Answer-Signal to noise ratio
The ability to locate discontinuities that are close together within the material is called:
✔Correct Answer-Resolution
The combined effect of scattering and absorption is called: ✔Correct Answer-Attenuation
Which of the following could influence the behavior of a transducer: A: electrical Construction,
B: Material Construction, C: Mechanical construction, or D: All the above? ✔Correct Answer-
All the above (electrical construction, material construction, and mechanical construction)
When a wave encounters an interface at an oblique angle. What takes place at the interface due
to the different sound velocities of the two materials? ✔Correct Answer-Refraction
What part of the ultrasonic machine generates short, large-amplitude pulses of controlled
energy? ✔Correct Answer-Pulser
In the transverse or shear wave, the particles: ✔Correct Answer-Oscillate at a right angle to
the direction of wave propagation
Which type of calibration block closely resembles the miniature angle-beam block and is used in
a similar way? ✔Correct Answer-A DSC block
The total resistance that the cable presents to the electrical current passing through it is called:
✔Correct Answer-Impedance
Which type of screen presentation displays a profile or cross-sectional view of the test
specimen? ✔Correct Answer-B-Scan
Within a given material, the speed of sound: ✔Correct Answer-Is constant
The first critical angle describes the condition where: ✔Correct Answer-The angle of the
refracted longitudinal wave is exactly 90 degrees
Which of the following waves is able to follow a surface around a curve? ✔Correct Answer-A
surface wave
Resolution generally increases: ✔Correct Answer-With an increase in transducer frequency
