aws cwi exam questions

Q:- Which of the following may increase the risk of haz cracking when welding thick section carbon manganese steel?

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1. Slow cooling after welding
2. Low moisture content in the electrode covering
3. Use of a steel grade with a low cev
4. Use of a low heat input

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Q:-What is meant by the term duty cycle?

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A. How long a welder can weld for in a given period
B. The amount of time the electrodes are being used
C. The amount of time a welding machine can be weld
D. The amount of electricity being consumed

Q:-What test specimens are required for this qualification test?

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A. 2 reduced section tensiles, 2root bends, 2 face bends
B. 2 reduced section tensiles, 4 side bends
C. 2 reduced section tensiles, 2root bends, 2 face bends, 2 macro etch specimens
D. 2 reduced section tensiles, 2root bends, 2 face bends, 4 side bends
E. None of the above

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