Understanding API ICP653 Reading 15-Worksheet-11a
Q3. If the radiograph of the alternative production weld used for qualification does not meet the radiographic standards: (a) Radiograph an additional 6" of the same production weld. (b) The welder shall be retested by mechanical tests. (c) The welder has failed the test, requiring RT of all his production welds and repaired by a qualified welder. ANS: c Q4. What is the intent of performance qualification tests? (a) To determine the ability of welders and welding operators to make sound welds. (b) Provide direction to the welder or welding operator. (c) To prove the mechanical properties of the weldment. ANS: a Charlie Chong/ Fion Zhang
Q5. Why is the Manufacturer responsible for conducting tests to qualify welders and welding operators in accordance with a qualified WPS which his organization employs in construction? · (a) The welder's performance is not transferable from employer to employer, (b) To assure that they are capable of developing the minimum requirements specified. (c) The responsibility of the qualifying welders can not be delegated to another organization. (d) All of the above. ANS: d Q6. A welder shall be re-qualified whenever a change is made in one or more of the ___ variables listed for each welding process (a) essential (b) supplemental essential (c) essential and nonessential ANS: a Charlie Chong/ Fion Zhang
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Q5. Why is the Manufacturer responsible for conducting tests to qualify<br />
welders and welding operators in accordance with a qualified WPS which<br />
his organization employs in construction? ·<br />
(a) The welder's performance is not transferable from employer to employer,<br />
(b) To assure that they are capable of developing the minimum requirements<br />
specified.<br />
(c) The responsibility of the qualifying welders can not be delegated to<br />
another organization.<br />
(d) All of the above.<br />
ANS: d<br />
Q6. A welder shall be re-qualified whenever a change is made in one or more<br />
of the ___ variables listed for each welding process<br />
(a) essential<br />
(b) supplemental essential<br />
(c) essential and nonessential<br />
ANS: a<br />
Charlie Chong/ Fion Zhang
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