Explain the difference between the stateful and stateless methods of pocket inspection?

أفضل جواب: <p>the best NDT method for heater exchangers tubes is edicurrent and DPI including visual testing.& ... الإطلاع على المزيد

أفضل جواب: My choice is (C) an indirect method. الإطلاع على المزيد

أفضل جواب: I think it is B. variable inspection, Thanks الإطلاع على المزيد

أفضل جواب: I looked at web page, it is not exited. So i will talk generally about answer of above question.  The ans ... الإطلاع على المزيد