Question: 50When penetrant testing is used for leak detection and a glass tank found to be leaking it is important to establish if the leak source is from a) porosityb) a crackc) now fusiond) the source is not important if leaking Question: 51The function of developer is to Question: 52Most comparison tests of penetrant materials are done Question: 53The biggest problem with doing penetrant testing on rough surfaces is Question: 54Developer fluorescence resulting from contamination by penetrant is tested for by a) oil and whitingb) black lightc) photofluorimetersd) galvanometers ID: 180687 Type: LPI Level: 1 P. 9

NDT TESTMAKER - MATERIALS RESEARCH INSTITUTE Mar 31, 2012 - 07:47 AM Question: 55It is customary for LPI inspectors to have eye examinations to test for Question: 56Eyeball fluorescence results from direct or reflected blacklight to the eye. The result is Question: 57Certification of personnel is Question: 58Water suspendible developer, if required to be removed, is best removed by a) sand blastingb) warm water and detergentc) tri-chlorethanald) steam cleaning Question: 59Hydrophilic emulsifiers are applied by Question: 60Rinsing of visible dye penetrant ID: 180687 Type: LPI Level: 1 P. 10