What type of gauge is used to measure reinforcement?

• A. Groove Weld Gauge
• B. Fillet Gauge
• C. Radius Gauge
• D. Caliper

Answer: (A)

Measuring reinforcement is about checking how much weld metal rises above the joint surface. For groove welds, the tool designed for this purpose is the groove weld gauge. It provides the specific references and scales needed to verify that the weld reinforcement height matches the required limits in the welding procedure. Fillet gauges are intended for fillet welds and help assess the throat and leg dimensions of those welds, not groove weld reinforcement. Radius gauges check curved edges or radii, not the height of a weld bead. Calipers are general-purpose measuring tools and don’t offer the specialized checks for groove weld reinforcement. So, the groove weld gauge is the correct choice for measuring reinforcement in groove welds.