Exam (elaborations)
CWB 2 Module 19 Questions and Answers
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CWB 2 Module 19 Questions and Answers 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 (shear) waves in a solid trave...
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