What is a disadvantage of using the fluorescent penetrant process?

Related MCQs

• The advantages of using a visible solvent removable penetrant versus a post emulsified fluorescent penetrant is:
• 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:
• Fluorescent penetrant indications are more visible than colour contrast penetrant indications because:
• Which of the following is normally prohibited as a method of removing excess penetrant when using the solvent removable penetrant process?
• Which of the following is the proper first step in removal of excess penetrant when using the solvent removable penetrant process?
• What is the proper technique for removal of excess penetrant from a part when using a water washable penetrant process?
• The adequacy of excess penetrant removal, using water washable penetrant process, is judged and controlled by:
• Which of the following is not (!) an advantage of a water washable fluorescent penetrant process?
• The fluorescent dyes used in the liquid penetrant testing process are most active when energised with black light of what wavelengths? (Å stands for angstrom units)