The ASTM penetrameter for a 25 mm thick test piece contains holes of what sizes?

Related MCQs

• 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)
• The minimum size hole in an ASTM penetrameter is:
• Natural discontinuities comparable in size to the penetrameter holes shown on a radiograph may not be detected because:
• A soft aluminium test piece is to be penetrant tested. The piece has previously been sand blasted to remove tightly adhering soils. What additional surface preparation should be performed?
• A 7.6 cm (3 inches) thick test specimen is radiographed with a source having size of 1.3 cm (1/2 inch), the film is placed in contact with the test specimen. The source to film distance is 40.6 cm (16 inches).The geometric unsharpness obtained is:
• Another name for a penetrameter is:
• The penetrameter is a tool used to check the of a radiograph:
• The basic purpose of a penetrameter is to:
• In performing a water content test of a lipophilic emulsifier per ASTM D-95, what solvent is used?
• When performing a post emulsifiable penetrant test, the test piece does not rinse acceptable clean during normal processing. What should be done?