In immersion testing, the position of the search unit is often varied – McqOptions

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1.	In immersion testing, the position of the search unit is often varied to transmit sound into the test part at various angles to the front surface. Such a procedure is referred to as:
A.	Angulation
B.	Dispersion
C.	Reflection testing
D.	Refraction
Answer» B. Dispersion

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