In which figure is the tack welder's test assembly shown?

• A. Figure 2
• B. Figure 1
• C. Figure 3
• D. Figure 4

Answer: (A)

A tack welder’s test assembly is identified by the presence of discrete tack welds used only to hold the pieces in proper alignment before final welding. In the figure, you’d expect to see several small weld spots along the joint, not a continuous bead, and fixtures or clamping that maintain a precise gap and position the plates. This setup shows the process of positioning and stabilizing parts rather than completing the full weld. The other figures would typically depict continuous welds or different joint configurations that aren’t about tack welding. So the figure that shows the joint held together with small, spaced tacks is the tack welder’s test assembly.