CWI Codebook Navigation and Application 5

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:

Accepted Answer

More stringent for planar discontinuities

Answer

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:

Accepted Answer

The Engineer of Record responsible for the design

Answer

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?

Accepted Answer

The general provisions allowing Engineer approval of alternatives

Answer

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?

Accepted Answer

The angle at which one tubular member intersects another

Answer

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:

Accepted Answer

Pressure piping is excluded from AWS D1.1 scope and governed by ASME B31 codes

Answer

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.

CWI Practice Test

CWI Practice Test

CWI Codebook Navigation and Application 5