When open holes have been completely melted through the base metal, generally caused by too much heat or poor welding motions, it is identified as:

Undercutting that is continuous along one side of the weld is most likely caused by:

Under fill is most often caused by insufficient filler metal.

Weld fatigue is related to dynamic weld loads over a period of time.

MatchingDirections: Match the part of the GTAW setup to its description.

Which polarity is rarely used in commercial applications?

If you were welding thin, dirty aluminum, you should set the wave balance to more:

MatchingDirections: Match the part to its label.

Which of the following occurs in humans after whole-body reception of large doses of ionizing radiation delivered over a short period of time?

When exposure to ionizing radiation causes proliferation of the white blood cells, the radiation-induced disease that occurs is: