Exam (elaborations)
CWB 2 Module 19 exam 2023 with 100% correct answers
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The upper limit of human hearing is approximately: A) 20Hz B) 20kHz C) 20MHZ - correct answer B) 20kHz A typical frequency used for ultrasonic testing of welds is: A) 2.25MHZ B) 2.25kHz C) 2.25Hz - correct answer A) 2.25MHZ Do transverse waves in a solid travel faster or slower ...
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