Which set correctly lists the three distortion types?

Which set correctly lists the three distortion types?

• A. Angular, Longitudinal and Transverse
• B. Circular, Radial and Spiral
• C. Vertical, Horizontal and Diagonal
• D. Primary, Secondary and Tertiary

Answer: (A)

Distortion in welded joints comes from how the metal contracts as it cools, and it shows up in three main ways. Angular distortion is when the joint tilts or twists, causing misalignment. Longitudinal distortion happens when the piece lengthens or shortens along the weld axis. Transverse distortion is the bowing across the weld, perpendicular to the seam. These three capture the common deformation patterns produced by welding heat and shrinkage, which is why they’re the correct set. The other term groups don’t describe distortion in welding: circular, radial and spiral describe shapes; vertical, horizontal and diagonal describe directions rather than distortion modes; and primary, secondary and tertiary refer to levels or ranks, not distortion types.

Distortion in welded joints comes from how the metal contracts as it cools, and it shows up in three main ways. Angular distortion is when the joint tilts or twists, causing misalignment. Longitudinal distortion happens when the piece lengthens or shortens along the weld axis. Transverse distortion is the bowing across the weld, perpendicular to the seam. These three capture the common deformation patterns produced by welding heat and shrinkage, which is why they’re the correct set. The other term groups don’t describe distortion in welding: circular, radial and spiral describe shapes; vertical, horizontal and diagonal describe directions rather than distortion modes; and primary, secondary and tertiary refer to levels or ranks, not distortion types.