What is the minimum time considered necessary for dark adaptation of the eyes prior to evaluating the results of a fluorescent penetrant test?

Related MCQs

• What amount of time is normally considered necessary for dark adaption of the eyes prior to performing a fluorescent penetrant test?
• For adequate test results, the black light used in fluorescent penetrant examination should provide what minimum black light intensity at the test surface?
• 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:
• When performing a fluorescent penetrant examination, excess penetrant is normally removed:
• The advantages of using a visible solvent removable penetrant versus a post emulsified fluorescent penetrant is:
• Fluorescent penetrant indications are more visible than colour contrast penetrant indications because:
• While performing a fluorescent water washable penetrant test, which of the following steps should be performed under black light?
• During a visible, solvent removable penetrant test, complete penetrant removal is indicated by:
• Which of the following is the most desirable method of pre-cleaning a test piece prior to penetrant testing?
• Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test: