Natural discontinuities comparable in size to the penetrameter holes shown on a radiograph may not be detected because:

Related MCQs

• The penetrameter is a tool used to check the of a radiograph:
• The ‘multi-film’ technique may be used when one radiograph film does not have enough to produce a satisfactory radiograph of a specimen.
• The ASTM penetrameter for a 25 mm thick test piece contains holes of what sizes?
• The range of the specimen thickness that can be adequately recorded on a radiograph is known as the of the radiograph.
• Open, shallow discontinuities are best detected by which penetrant testing method?
• The minimum size hole in an ASTM penetrameter is:
• Another name for a penetrameter is:
• The basic purpose of a penetrameter is to:
• Source-to-object distance, object-to-film distance, and source size are the three factors that control the of the radiograph.
• Use of a slower speed film improves the definition of the radiograph because the slower film: