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Welder Testing & Quality Assurance Flashcards

7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Welder Testing & Quality Assurance flashcards as text

  1. A welder fails a bend test because the coupon cracks at the root. What is the most likely cause?

    Answer: Incomplete fusion at the root

    Root cracks on bend tests typically indicate incomplete fusion or penetration at the root of the weld joint.

  2. Which AWS standard governs welder qualification for structural steel welding?

    Answer: AWS D1.1

    AWS D1.1 Structural Welding Code — Steel is the primary standard for qualifying welders on structural steel applications.

  3. What is the maximum number of guided bend test specimens that may show discontinuities exceeding 1/8 inch before the test is considered a failure?

    Answer: None — any such discontinuity is a failure

    Under AWS D1.1, any single discontinuity exceeding 1/8 inch in any direction on the convex surface constitutes a failed bend test.

  4. A radiographic test reveals elongated slag inclusions aligned parallel to the weld axis. What welding variable most likely caused this?

    Answer: Insufficient interpass cleaning

    Parallel slag inclusions typically result from slag trapped between passes due to inadequate interpass cleaning with a chipping hammer and wire brush.

  5. When performing a fillet weld break test, the weld is fractured to expose the cross-section. What defect would cause immediate failure?

    Answer: Incomplete fusion extending more than 20% of weld length

    Incomplete fusion beyond the allowable limit means the weld failed to bond properly to the base metal, which is a critical structural defect.

  6. Which position classification covers a welder qualified to weld in the overhead position on pipe?

    Answer: 5G

    The 5G position is fixed pipe welded in the horizontal position with the axis horizontal, requiring all-position welding including overhead.

  7. What does the term 'essential variable' mean in the context of welder qualification?

    Answer: A variable whose change requires requalification of the welder

    An essential variable in welder qualification is one that, when changed beyond allowed limits, requires the welder to requalify by retesting.