Exam 16: Gas Tungsten Arc Welding

Autogenous welds work best on flare, outside corner, and lap joints because as the metal is melted, it can more easily flow together than it would on butt and tee joints.

____________________, sometimes called stringer beads, should be uniform in width and reinforcement while having minimum penetration.

The point on a tungsten is usually ground so that it is ____ as long as the diameter of the tungsten.

When tiny pockets of primarily ____ gas get hot and expand, they can cause weld porosity.

It is desirable to take the time and necessary precautions to make welds that are no darker than ____.