Final answer:
The statement is b. false. A 3f fillet weld test only qualifies a welder for positions of lesser complexity and does not certify them for groove welds in any position.
Step-by-step explanation:
The statement that performing a fillet weld test in the 3f position also qualifies a welder for the following positions: 3f, 2f, 1f, 3g, 2g, and 1g is false. Welding qualifications are position-specific, and a welder must be tested in each position they are to be certified in. A 3F (vertical fillet) weld qualification only qualifies the welder to perform fillet welds in the vertical position and for positions of lesser complexity, such as flat and horizontal, which are covered by the 1F and 2F positions, respectively. It does not qualify them for groove welds in any position (1G, 2G, or 3G). To become certified for groove welds, the welder must pass separate tests designed for those positions.
A fillet weld is a type of weld where two pieces of metal are joined at an angle, creating a triangular cross-section. The 3f position refers to the flat position, with the weld deposited on the horizontal surface and the axis of the weld perpendicular to the surface.
When a welder successfully passes a fillet weld test in the 3f position, it demonstrates their ability to create strong and high-quality welds. However, this qualification does not automatically qualify the welder for other positions such as 2f, 1f, 3g, 2g, and 1g.
Each welding position is unique and requires specific skills and techniques. To be qualified in a particular position, the welder must pass the corresponding test for that position.