Disadvantages (Limitations) of UT

Question 1

Surface must be _____ to transmit ultrasound.

Answer 1

Surface must be accessible to transmit ultrasound.

Question 2

Skill and training are more _____ than with some other methods.

Answer 2

Skill and training are more (extensive) than with some other methods.

Question 3

It normally requires a ___ ___ to promote the transfer of sound energy into the test specimen.

Answer 3

It normally requires a (coupling medium) to promote the transfer of sound energy into the test specimen.

Question 4

Materials that are rough, irregular in shape, very small, exceptionally thin or not homogeneous are _____ to inspect.

Answer 4

Materials that are rough, irregular in shape, very small, exceptionally thin or not homogeneous are (difficult) to inspect.

Question 5

Cast iron and other coarse grained materials are _____ to inspect due to low sound transmission and high signal noise.

Answer 5

Cast iron and other coarse grained materials are (difficult) to inspect due to low sound transmission and high signal noise.

Question 6

Linear defects oriented parallel to the sound beam may go _____.

Answer 6

Linear defects oriented parallel to the sound beam may go (undetected).

Question 7

Reference standards are required for both equipment calibration and the ________ of flaws.

Answer 7

• Reference standards are required for both equipment calibration and the (characterization) of flaws.