[Solved] Which of the following methods might be used to reduce attenuation losses in an ultrasonic test?

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Q.	Which of the following methods might be used to reduce attenuation losses in an ultrasonic test?
A.	Use a shorter wavelength
B.	Use a lower frequency transducer
C.	Change from longitudinal waves to shear waves
D.	Change to a coarser grained test piece
Answer» B. Use a lower frequency transducer

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