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Welding Codes and Standards Flashcards

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

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  1. Under AWS D1.1, what is the minimum preheat temperature required for ASTM A36 steel with thickness greater than 1.5 inches when welding with SMAW?

    Answer: 150°F (65°C)

    AWS D1.1 Table 4.5 requires a minimum preheat of 150°F for A36 steel over 1.5 inches thick when using SMAW.

  2. Which ASME code section specifically governs the welding of pressure vessels?

    Answer: Section VIII

    ASME Section VIII covers unfired pressure vessels, while Section IX covers welding and brazing qualifications.

  3. What does the term 'essential variable' mean in the context of a Welding Procedure Specification (WPS)?

    Answer: A variable whose change requires requalification of the procedure

    An essential variable is one whose change beyond allowed limits requires a new procedure qualification record (PQR).

  4. According to AWS D1.1, visual inspection of a weld must be performed by a person with minimum vision of:

    Answer: 20/40 corrected or uncorrected vision in at least one eye

    AWS D1.1 requires the inspector to have 20/40 minimum vision (corrected or uncorrected) in at least one eye.

  5. A Procedure Qualification Record (PQR) documents the:

    Answer: Variables used and test results from a qualification weld

    A PQR records the actual welding variables used during qualification testing and the test results that support the WPS.

  6. Under AWS D1.1, which discontinuity type is considered a 'crack' and is always rejectable regardless of size?

    Answer: Longitudinal crack in the weld metal

    Cracks of any type, size, or location are absolutely rejectable under AWS D1.1 with no size tolerance.

  7. Which AWS standard governs structural welding of sheet steel?

    Answer: AWS D1.3

    AWS D1.3 is the Structural Welding Code for Sheet Steel, covering material 3/16 inch and thinner.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. aws.org — Renewal, test delivery, eligibility, exam format, passing score, retake policy, score release, retake fee · verified Oct 2026