10 Question UT quiz

1. Why aren’t real defects commonly used in calibration and reference standards?

2. Increasing the frequency of an ultrasonic longitudinal wave will result in ___________in the velocity of that wave.

3. The ability to locate a small discontinuity is called:

4. In a calibrated A-scan presentation, the horizontal base line represents:

5. Air is not a good transmitter of ultrasound because:

6. The angle of reflection of a longitudinal wave at an interface:

7. Couplant displaces the__________ and makes it possible to get more sound energy into the test specimen.

8. The atomic number of an atom is equal to:

9. The ultrasonic test method in which finger damping in most effective in locating a discontinuity is:

10. Which type of calibration block is used to determine the resolution of angle beam transducers per requirements of AWS and AASHTO

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