CSWIP 3.1U Practice Questions - CSWIP 3.1U Underwater (NDT) Inspection Diver Exam

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What surface preparation cleanliness standard (equivalent to ISO 8501-1) is required before conducting underwater magnetic particle inspection (MPI) on structural steel welds?

Sa 2.5 / Very thorough blast cleaning to bright metal Sa 1 / Light brush cleaning leaving loose scale St 2 / Hand tool scraping leaving firmly adhering paint No cleaning is required prior to subsea MPI

Correct Answer:

Sa 2.5 / Very thorough blast cleaning to bright metal

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