In a multi-pass weld, which statement about the feeder pass is true?

• A. The feeder pass builds up welding and fills the joint.
• B. The feeder pass establishes initial fusion.
• C. The feeder pass is used for final finishing.
• D. The feeder pass cools the joint.

Answer: (A)

In a multi-pass weld, after the root pass has established fusion at the joint, the following passes are used to build up weld metal and fill the groove. The feeder pass is the pass that deposits filler metal to fill the joint and raise the weld profile toward the surface, effectively building up the weld to the required size. It’s not responsible for establishing the initial fusion—that’s the root pass—and it’s not primarily for finishing the weld surface—the finishing or cap passes handle that aspect. It also doesn’t cool the joint; cooling happens as the weld and surrounding metal return to ambient temperature after welding.