american welding society

Q:-When considering the advantages of site RT over UT which of the following applies?

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1. A permanent record produced, good for detecting defects which do not have significant depth in relation to axis of the X-ray beam and defect identification
2. A permanent record produced, good for detecting all surface and sub-surface defects and assessing the through thickness depths of defects
3. A permanent record produced, defect identification not so reliant on operator skill
4. No controlled areas required on site, a permanent record produced and good for assessing the extent of pipe wall thickness reductions due to internal corrosio

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Q:- Prior to production welding commencing you notice that the drawing has been revised and now Includes a pipe with a wall thickness of 36mm, your WPS only covers wall thickness of 28mm, what course of action would you follow?

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A. Continuous with production welding as the difference is less than 10%
B. Apply for a concession to change the thickness to permit the welding on the 36mm wall thick pipe
C. Change the range on the WPS to 36mm and allow welding to commence
D. Allowing welding to commence then apply for a concession