If a tack welder passes a fillet weld break test, what is he or she allowed to weld?

• A. Fillet welds with the same classification as the test.
• B. Only tack welds.
• C. Any weld type.
• D. Only used as temporary welds.

Answer: (A)

Passing a fillet weld break test shows the welder has demonstrated the ability to produce fillet welds that are sound for the specific weld size and material used in the test. The classification tied to the test defines the limits of what they are permitted to weld. Therefore, they are allowed to weld fillet welds of that same classification in production. This qualification does not cover other weld types or larger sizes not included in the test, nor does it limit them to tack welds only. For welding different weld types, sizes, or conditions, additional qualification tests would be required.