CWI Codebook Navigation and Application 3

Question 1

In AWS D1.1, what is the purpose of the Essential Variables listed in Section 5?

Accepted Answer

They specify changes that require requalification of the WPS

Answer

Essential variables are parameters whose change beyond specified limits requires requalification of the welding procedure specification.

Question 2

An inspector is looking up the RT acceptance criteria for a complete joint penetration groove weld in a statically loaded non-tubular structure per AWS D1.1. Which table applies?

Accepted Answer

Table 6.2

Answer

Table 6.2 in AWS D1.1 provides RT acceptance criteria for statically loaded non-tubular connections.

Question 3

The AWS D1.1 code index lists 'porosity, pipe.' Where would a CWI look to find this entry in the index?

Accepted Answer

Under 'P' for porosity

Answer

Code indexes are alphabetical; 'porosity' is the primary term and 'pipe' is a sub-entry under 'P'.

Question 4

When AWS D1.1 references 'See 4.12.3,' this notation means:

Accepted Answer

Section 4, Clause 12, Sub-clause 3

Answer

AWS D1.1 uses a decimal numbering system where the first digit is the section, second is the clause, and third is the sub-clause.

Question 5

A welder qualifies using a test plate with 3/8-inch thickness. Per AWS D1.1, what maximum production weld thickness is the welder qualified for on groove welds?

Accepted Answer

Unlimited

Answer

Per AWS D1.1, a welder who passes a test on plate 3/8 inch or greater is qualified for unlimited thickness in production.

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CWI Practice Test

CWI Codebook Navigation and Application 3