On a lap-joint, the work angle is measured from a line perpendicular to the major, or nonbutting, surface to the plane containing the weld axis and the electrode axis. What is the term for this angle?

On a lap-joint, the work angle is measured from a line perpendicular to the major, or nonbutting, surface to the plane containing the weld axis and the electrode axis. What is the term for this angle?

• A. Weld angle
• B. Root angle
• C. Work angle
• D. Bevel angle

Answer: (C)

The concept being tested is how the electrode is directed relative to the joint in a lap weld. The term for this specific orientation is the work angle. It’s defined as the angle measured from a line perpendicular to the major (nonbutting) surface toward the plane that contains the weld axis and the electrode axis. This angle tells you how much you tilt the electrode to position filler metal into the overlapping area, affecting bead shape and fusion on both pieces. Bevel angle and root angle describe the groove’s geometry at the edges and root, not the electrode’s approach, while weld angle generally refers to the bead’s overall tilt rather than this perpendicular-to-surface reference.

The concept being tested is how the electrode is directed relative to the joint in a lap weld. The term for this specific orientation is the work angle. It’s defined as the angle measured from a line perpendicular to the major (nonbutting) surface toward the plane that contains the weld axis and the electrode axis. This angle tells you how much you tilt the electrode to position filler metal into the overlapping area, affecting bead shape and fusion on both pieces. Bevel angle and root angle describe the groove’s geometry at the edges and root, not the electrode’s approach, while weld angle generally refers to the bead’s overall tilt rather than this perpendicular-to-surface reference.