Which plug weld pattern is described as randomly alternating the location of plug welds and not making two or more welds next to each other concurrently?

• A. Alternating
• B. Sequential
• C. Uniform
• D. Random

Answer: (A)

The pattern being tested is about how plug welds are laid out to manage heat and distortion. Alternating means you switch the weld locations so you don’t place two plugs next to each other, keeping heat input spread out rather than concentrated in one area. This helps maintain joint alignment and strength and reduces the risk of warping. It isn’t sequential, which would imply a steady, in-order progression along a line that can create a continuous hot zone; it isn’t uniform, which would place welds in a regular, fixed grid that may still end up clustering; and it isn’t truly random, which wouldn’t guarantee the deliberate spacing needed to avoid adjacent welds. So, alternating best matches the description.