CWI Codebook Navigation and Application 5 — Questions and Answers
Question 1: A CWI is inspecting a cyclically loaded structure and needs to apply the correct RT acceptance criteria. Compared to statically loaded criteria in AWS D1.1, the cyclic criteria are generally:
- More lenient in all categories
- More stringent for planar discontinuities (Correct answer)
- Identical for all discontinuity types
- More lenient for porosity but stricter for undercut
Correct answer: More stringent for planar discontinuities
Cyclic (fatigue) loading makes structures more sensitive to planar discontinuities like cracks and lack of fusion, so AWS D1.1 applies stricter acceptance criteria for these defect types.
Question 2: AWS D1.1 uses the term 'Engineer' with a capital 'E' throughout the code. This specifically refers to:
- Any licensed professional engineer
- The welding engineer on the project
- The Engineer of Record responsible for the design (Correct answer)
- The AWS-certified engineer overseeing inspection
Correct answer: The Engineer of Record responsible for the design
AWS D1.1 defines 'Engineer' (capitalized) as the Engineer of Record — the individual or organization responsible for the structural design.
Question 3: Which AWS D1.1 provision allows the Contractor to use an alternative to a code requirement if equivalency can be demonstrated to the Engineer's satisfaction?
- The prequalification exemption clause
- The alternate standards clause in Section 1
- The general provisions allowing Engineer approval of alternatives (Correct answer)
- The essential variables waiver process in Section 5
Correct answer: The general provisions allowing Engineer approval of alternatives
AWS D1.1 contains general provisions that allow the Engineer to approve alternatives to specific code requirements when the Contractor demonstrates technical equivalency.
Question 4: In AWS D1.1, a 'T, K, or Y connection' is referenced in tubular provisions. What geometric feature defines these connection types?
- The type of groove weld used
- The angle at which one tubular member intersects another (Correct answer)
- The base metal thickness of the chord member
- The weld joint access condition
Correct answer: The angle at which one tubular member intersects another
T, K, and Y designations describe the geometry of tubular member intersections — T is approximately 90°, Y is at an acute angle, and K involves two branch members.
Question 5: When navigating AWS D1.1 for a piping application, a CWI should be aware that:
- AWS D1.1 fully covers all pressure piping welding requirements
- Pressure piping is excluded from AWS D1.1 scope and governed by ASME B31 codes (Correct answer)
- AWS D1.1 applies to piping over 2 inches in diameter only
- Piping qualifications are covered in Section 8 of AWS D1.1
Correct answer: Pressure piping is excluded from AWS D1.1 scope and governed by ASME B31 codes
AWS D1.1 scope explicitly excludes pressure piping, which is governed by ASME B31 series codes; applying D1.1 to pressure piping would be a code misapplication.
Question 6: A footnote in AWS D1.1 Table 6.1 is marked with a double dagger (‡). How does a CWI locate the corresponding footnote text?
- At the bottom of the same page
- At the end of the section containing the table
- Immediately below the table body (Correct answer)
- In the code index under the table number
Correct answer: Immediately below the table body
In AWS D1.1, table footnotes appear directly below the table body, identified by matching symbols (*, †, ‡, etc.) or superscript letters.
Question 7: When AWS D1.1 specifies that a WPS must be 'qualified in accordance with Section 5,' the Contractor's obligation is to:
- Submit the WPS to AWS for approval before welding
- Develop the WPS using prequalified parameters only
- Test weld test assemblies per Section 5 and document results on a PQR (Correct answer)
- Obtain engineer approval for the WPS before any testing
Correct answer: Test weld test assemblies per Section 5 and document results on a PQR
Section 5 qualification requires the contractor to produce test weld assemblies, test them per specified procedures, and record results on a Procedure Qualification Record (PQR).
CWI Codebook Navigation and Application 5
A CWI is inspecting a cyclically loaded structure and needs to apply the correct RT acceptance criteria.
Compared to statically loaded criteria in AWS D1.1, the cyclic criteria are generally: