🔍 Key Concepts

• Compare how much base metal must be cut or beveled before welding in each joint type. • Distinguish between a simple fillet weld and groove/butt welds that need edge preparation. • Look closely at which joints show machined or beveled edges versus plates left square.

💭 Think About

• In which of the listed joints do the plates look closest to their original, square-edged shape with no beveling or grooving? • Among 1B, 3A, 3B, and 4A, which ones clearly show that material has been removed from one or both plates before welding? • Which joint type is normally used when you want minimum joint preparation, even if it might use more weld metal?.

✅ Before You Answer

• Verify which illustrated joints are fillet welds on T-joints versus groove welds on butt joints. • Check each option for any sign of V-, U-, or double-sided bevels cut into the plates. • Confirm that the joint you choose requires no edge machining or beveling, only fitting the pieces together and welding.