CWI Part B question of the day · 13 November 2026

Today's CWI Part B practice question

Welding Inspection and Discontinuities

External undercut on a 60 in long pipeline weld in 0.500 in wall pipe measures 0.025 in deep. In one continuous 12 in of weld it totals 2-1/2 in. How is it judged?

Acceptable at any length at this depthRejected; too deep for any lengthA defect; too long at this depthAcceptable; under 12.5% of the wall

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This question is original and written to American Welding Society's published content outline. A new question appears each day at midnight Eastern.

Today's CWI Part B practice question

External undercut on a 60 in long pipeline weld in 0.500 in wall pipe measures 0.025 in deep. In one continuous 12 in of weld it totals 2-1/2 in. How is it judged?

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