INTERVIEW QUESTIONS
ASME SECTION IX : WELDING
1. Is it required to certify the PQR?
Answer: Yes.
The PQR shall be certified accurate by the manufacturer or contractor.
Refer ASME Section IX QW 200.2 (b)
2. What is the expiry date of welder qualification if a welder has not worked with that qualification?
Answer: 6 Months.
3. A welder is qualified with backing. Is he qualified to weld without backing in the case of SMAW welding?
Answer: No. As per QW 353, deletion of backing is a re-qualification criteria for the welder in the case of SMAW.
4. A welder is qualified with inert gas backing. Is he qualified to weld without inert gas backing in the case of GTAW welding?
Answer: No. As per QW 356, deletion of inert gas backing is a
re-qualification criteria for the welder in the case of GTAW.
5. A welder is qualified with DCEN. Is he qualified to weld DCEP in the case of GTAW welding?
Answer: No. As per QW 356, Change in polarity is a re-qualification criteria for the welder in the case of GTAW.
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