Questionnaire and Answer Sheet: MECHANICAL GENERAL 1 机械综合 1 1. What is the purpose of a penetrameter or IQI? Indicates radiographic sensitivity and quality of the techniques. 2. What is meant by the term sensitivity with regard to radiography? The ability of a radiographic technique to reveal defects of a specific size. 3. What are the limitations of magnetic particle inspection and liquid penetrant inspection? M.P. can be used only on ferromagnetic materials to detect surface subsurface discont
