Post cleaning is especially important when:

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:
• Which of the following is the most desirable method of pre-cleaning a test piece prior to penetrant testing?
• Which of the following pre-cleaning processes is not recommended?
• A wire brush should be used for pre-cleaning:
• Which of the following types of pre-cleaning processes may be used for liquid penetrant testing?
• What is the preferred pre-cleaning process for removal of oil and grease :
• Which pre-cleaning method may be used with either a solvent or a detergent solution?
• What is the danger associated with using a wire brush during pre-cleaning?
• What additional surface preparation or cleaning must be performed on a machined or ground aluminium casting prior to penetrant testing?
• Which of the following methods is not recommended for pre-cleaning prior to a liquid penetrant test: