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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:-During welder qualification, when destructively testing pipe with a diameter less than or equal to 33.4 mm:

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1. Radiography must be used

2. The entire pipe must be used for bend testing

3. One full-section tensile specimen may be substituted for the root-bend and nick-break 


4. Pipe of this diameter may not be destructively tested e. none of the above