Too large a ____ pass can trap slag under overlap along the lower edge of the weld.
A) root
B) filler
C) cover
D) guard

Question

Quizplus · Accepted Answer

A root pass is the first pass in a multi-pass welding operation and it forms the root of the weld. If the root pass is too large, it can trap slag under overlap along the lower edge of the weld, leading to defects such as lack of fusion or porosity. Filler, cover, and guard passes are not typically associated with trapping slag.

Too Large a ____ Pass Can Trap Slag Under Overlap