AWS Certified Welding Inspector Exam
Welder Qualification Practice Questions
10 practice questions with detailed explanations — aligned to the AWS Certified Welding Inspector Exam.
Q1.A welder qualifies with a backing plate. Is this welder qualified to weld joints WITHOUT backing?
A.YesB.NoC.Only in the flat positionD.Only if they use GTAWB. NoExplanation: Qualifying with backing qualifies only for backing (and backgouged) joints. Welding open roots (without backing) requires a specific qualification test without backing.
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Q2.The '6G' pipe welding position is:
A.Pipe vertical fixedB.Pipe horizontal fixedC.Pipe fixed at a 45 degree angle +/- 5 degreesD.Pipe rotatingC. Pipe fixed at a 45 degree angle +/- 5 degreesExplanation: 6G is the fixed position with the pipe axis inclined at 45 degrees. It covers all positions (Flat, Vertical, Overhead) in one test.
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Q3.In a guided bend test for welder qualification, a corner crack of 1/4 inch is:
A.AcceptableB.RejectableC.Acceptable if no slag inclusion is visibleD.Needs MTB. RejectableExplanation: Generally, open defects > 1/8 inch are rejectable. Corner cracks > 1/4 inch are rejectable regardless of inclusions.
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Q4.A Tack Welder qualification is valid for:
A.Tack welds onlyB.Fillet welds onlyC.Root passesD.All weldsA. Tack welds onlyExplanation: A tack welder qualification allows the individual to perform tack welds only, not final production welds.
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Q5.Radiography can be used in lieu of mechanical testing for welder qualification for which processes?
A.GMAW-S (Short Circuit)B.SMAW, SAW, GMAW (Spray/Globular), FCAWC.All processesD.NoneB. SMAW, SAW, GMAW (Spray/Globular), FCAWExplanation: D1.1 allows RT for welder qual for SMAW, SAW, FCAW, and GMAW (except Short Circuit). GMAW-S requires bend tests to detect lack of fusion.
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Q6.To qualify for all positions on plate, a welder typically tests in:
A.1G and 2GB.3G and 4GC.6GD.1G onlyB. 3G and 4GExplanation: Testing in 3G (Vertical) and 4G (Overhead) qualifies the welder for all positions (Flat, Horizontal, Vertical, Overhead) on plate.
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Q7.The visual acceptance criteria for a welder qualification test weld are:
A.The same as fabrication (Clause 6)B.Slightly stricterC.Less strictD.Specified in Clause 4 (e.g., no cracks, undercut < 1/32, reinforcement limits)D. Specified in Clause 4 (e.g., no cracks, undercut < 1/32, reinforcement limits)Explanation: Clause 4 has specific visual criteria for test welds (e.g., max reinforcement 1/8", no cracks, undercut limitations).
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Q8.If a welder fails a qualification test, an immediate retest:
A.Is not allowedB.Permits two test welds for each type that failed, both must passC.Permits one retestD.Is allowed only after trainingB. Permits two test welds for each type that failed, both must passExplanation: Immediate retest requires two consecutive test welds for each position/type failed. Both must pass.
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Q9.Changing the F-Number of the electrode (e.g., F3 to F4):
A.Does not require requalificationB.Requires requalificationC.Requires a new PQR but not welder qualD.Is allowed if the diameter is the sameB. Requires requalificationExplanation: F-Numbers represent electrode usability. A change (especially to a higher F-number) usually requires requalification. (Note: Qualifying with F4 covers F1-F4, but qualifying with F3 does NOT cover F4).
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Q10.A welder qualified on pipe is automatically qualified on plate?
A.NoB.Yes, for the positions qualifiedC.Only for fillet weldsD.Only for groove weldsB. Yes, for the positions qualifiedExplanation: Pipe qualification (e.g., 6G) qualifies for plate in all positions (Vertical, Overhead, etc.), as pipe is considered more difficult.
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