Diffusion of a lipophilic emulsifier penetrant into the test piece surface is stopped by:

Related MCQs

• When using a post emulsifiable penetrant process, it is important to drain as much excess penetrant as possible from the surface of a test piece which has been immersed in the penetrant because:
• In performing a water content test of a lipophilic emulsifier per ASTM D-95, what solvent 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)
• 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?
• The most likely cause of loss of performance in a lipophilic emulsifier is:
• A penetrant process which employs an emulsifier as a separate step in the penetrant removal process is called:
• A penetrant testing method in which an emulsifier, separate from the penetrant, is used is called:
• What is the likely result of incomplete removal of all excess penetrant from the test piece surface?
• The time period during which penetrant remains on the surface of the test piece is called:
• A penetrant which requires a separate emulsification step prior to removal from the surface of the test piece is called?