API 510 - Pressure Vessel Inspector Practice Exam 11
Practice exam for API 510 - Pressure Vessel Inspector.
Question 1
MEDIUMA crude unit vacuum tower cannot be opened for an internal inspection due to turnaround deferral. The owner-user proposes an on-stream inspection program using UT scanning and external VT.
Which statement best describes API 510 expectations for on-stream inspection as a substitute for internal inspection?
API 510 permits on-stream inspection in lieu of internal inspection when conditions justify it and appropriate NDE/monitoring can address expected damage mechanisms. It is not limited to stainless steel and does not inherently require hydrotesting. (API 510 On-stream Inspection).
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