11 Questions
What is the instrument called that produces the sound energy in ultrasonic testing?
Probe
Where are the echoes shown in a flaw detector?
Flat screen LCD
Which part of the test specimen reflects some of the sound back, producing an echo at B1?
Defect at B
What does the echo at C1 represent in ultrasonic testing?
'C' back wall reflection
What is the result of sound energy reflecting off the front surface of the specimen along with the crystal and initial pulse?
Echo at A1
What is the most common technique used in ultrasonic testing?
Pulse echo technique
How is the mechanism of sound waves in ultrasonic testing similar to audible sound waves?
They reflect back when blocked by obstacles
What determines the strength of the echo in ultrasonic testing?
The size of the obstacle
How can the distance to an obstacle be determined in ultrasonic testing?
By measuring the time lapse between sending and receiving the sound wave
In ultrasonic testing, why would an echo from a defect be received earlier than an echo from the back wall?
Because sound doesn't travel as far to reach defects
What does the depth of a defect in ultrasonic testing depend on?
The distance traveled by the sound wave
Test your knowledge on the basic principles of ultrasonic testing in mechanical engineering, focusing on the pulse echo technique and how sound waves are reflected by obstacles. Understand the similarities between audible sound wave reflection and ultrasonic testing.
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