10 Question UT quiz

1. Mode conversion, occurs when a sound wave encounters an interface between materials of different acoustic impedance and:

2. The measure of how a signal from a defect compared to other background reflections is called:

3. Cyclic or vibrational loading of parts may result in:

4. In an ultrasonic instrument, the number of pulses produced by an instrument in a given period of time in known as the:

5. The formula Sina1/Sinv1 = Sina2/Sinv2 is used to determine:

6. In the far zone of an ultrasonic beam, as the distance from the probe increases, there is:

7. During contact testing signal amplitude variations from a reflector can occur due to:

8. The first critical angle describes the condition where the:

9. In some inspection procedures the suppression (reject) control is required to be turned off, this is because suppression may:

10. The accuracy of an ultrasonic thickness test is influenced by?

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