A production run of multiple fillet welds on 6 mm carbon steel plates is being visually inspected by a quality control technician. They notice that the leg length of several welds frequently varies and often falls below the specified 5 mm minimum. What corrective action should the welder prioritize to address this welding issue in subsequent welds?

Question: A production run of multiple fillet welds on 6 mm carbon steel plates is being visually inspected by a quality control technician. They notice that the leg length of several welds frequently varies and often falls below the specified 5 mm minimum. What corrective action should the welder prioritize to address this welding issue in subsequent welds?

Answer options: ✅ Adjusting electrode angle and travel speed

• Increasing shielding gas flow rate
• Decreasing welding voltage
• Preheating the base metal

Correct answer: Adjusting electrode angle and travel speed

Explanation: Consistent leg length in fillet welds is primarily controlled by electrode angle and travel speed, which dictate weld bead shape and metal deposition. An incorrect angle or too fast a travel speed can lead to insufficient leg length. Increasing shielding gas flow rate primarily prevents atmospheric contamination but doesn't directly control leg length. Decreasing voltage would likely reduce penetration and potentially worsen leg length, while preheating is used to manage heat input and reduce cracking risks, not directly control leg length.