AA display which shows the initial pulse and the front surface echo with a fairly wide space between the two would be considered:

Related MCQs

• AA display which shows the initial pulse and the front surface echo superimposed would be considered:
• When testing a test piece with parallel front and back surfaces, no back wall echo can be obtained. Which of the following actions might enable you to obtain a back wall echo?
• An ultrasonic display which shows echo locations and amplitude is called:
• Compared to the echo returned from a smooth reflector, the echo returned from a natural flaw of the same area and orientation is:
• In a basic pulse-echo ultrasonic instrument, the component that produces the time base line is called a:
• A A widening of the front surface indication, when testing a rough surface, is caused by:
• When variations are noticed in the front surface reflection, the test piece should be inspected for possible near surface discontinuities by:
• The portion of a test piece which is represented by the CRT screen area from zero to the rightmost edge of the initial pulse is called:
• In a basic ultrasonic test pattern (A scan) for contact testing, the initial pulse (assume no sweep delay is used):
• When using a straight beam technique to examine a thick test piece what change(s) would you expect to see in back wall echo size as you approach the side of the test piece? (Transducer remains completely on test piece)