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CWB 2 Module 19 Questions | 100% Correct Answers | Verified | Latest Update 2024
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The upper limit of human hearing is approximately: A) 20Hz B) 20kHz C) 20MHZ - B) 20kHz A typical frequency used for ultrasonic testing of welds is: A) 2.25MHZ B) 2.25kHz C) 2.25Hz - A) 2.25MHZ Do transverse waves in a solid travel faster or slower than longitudinal waves? - Slower True or False? The energy carried by a wave is proportional to the square of the amplitude. - True The decrease in energy of an ultrasonic wave as it travels through a material is known as: A) Amplitude B) Amplification C) Attenuation - C) Attenuation Piezoelectric crystals can:
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