CWI Code Book Application 3

Question 1

AWS D1.1 requires that RT or UT be performed on CJP groove welds in cyclically loaded structures for what category designation?

Accepted Answer

Category A and B welds

Answer

AWS D1.1 requires RT or UT on Category A and B CJP groove welds in cyclically loaded (fatigue) structures.

Question 2

Per ASME Section IX, what is the primary purpose of a Procedure Qualification Record (PQR)?

Accepted Answer

To document the actual variables used during a test weld and the test results

Answer

A PQR is a record of the actual variables used during a test weld and the test results that qualify the WPS.

Question 3

In AWS D1.1, when a radiograph shows an elongated slag inclusion, acceptance is based on which dimension relative to the weld throat?

Accepted Answer

Length only

Answer

AWS D1.1 evaluates elongated slag inclusions primarily by their maximum length relative to the weld throat thickness.

Question 4

According to AWS D1.1, which filler metal classification is approved for use with the FCAW process in prequalified WPSs?

Accepted Answer

Any AWS A5.20 or A5.36 classified electrode meeting the code's requirements

Answer

AWS D1.1 allows prequalified FCAW WPSs using electrodes classified under AWS A5.20 or A5.36 that meet all code requirements.

Question 5

Under AWS D1.1, what is the maximum allowable porosity for a groove weld inspected by RT in a statically loaded structure (individual pore diameter vs. weld size)?

Accepted Answer

Individual pore ≤ t/4 but not exceeding 3/8 inch

Answer

AWS D1.1 limits individual pore diameter to t/4 (weld size/4) but not exceeding 3/8 inch for statically loaded structure RT acceptance.

CWI Practice Test

CWI Practice Test

CWI Code Book Application 3