On the area-amplitude ultrasonic standard test blocks, the flat-bottomed holes in the blocks are:

Related MCQs

• An ultrasonic test using a straight beam contact search unit is being conducted through the thickness of a flat part such as a plate. This test should detect:
• The ASTM penetrameter for a 25 mm thick test piece contains holes of what sizes?
• What type of search unit allows the greatest resolving power with standard ultrasonic testing equipment?
• In a basic ultrasonic test pattern (A scan) for contact testing, the initial pulse (assume no sweep delay is used):
• An ultrasonic testing technique in which the transducer element is not parallel to the test surface is called:
• AA material used between the face of a search unit and the test surface to permit or improve the transmission of ultrasonic vibrations from the search unit to the material being tested is called:
• Which of the following methods might be used to reduce attenuation losses in an ultrasonic test?
• An ultrasonic display which shows a cross section of the test piece and any flaws which are found are called:
• Choice of ultrasonic test frequency depends upon which of the following?
• The most important factor required for the proper interpretation of ultrasonic test results is: