What is a consequence of not using proper tacking during frame patch welding?

• A. Improved alignment
• B. Reduced heat input
• C. Faster completion
• D. Increased risk of distortion and misalignment

Answer: (D)

Tack welding is used to hold the patch and frame in the correct position while the final welds are completed. These small anchors help control movement and heat-induced distortion, preserving alignment as you build up the welds. If you don’t use proper tacking, the parts can shift or warp when heat from the welds is added, creating gaps, misalignment, or a distorted frame. That’s why the consequence is an increased risk of distortion and misalignment. The other options don’t fit because proper tacking actually helps maintain positioning (not improve alignment on its own), and it doesn’t guarantee reduced heat input or faster completion; improper setup can lead to rework and delays.