The operator would have no way of adjusting the maximum amperage in a weld circuit if a power source did not have a/an:

Matching Directions: Match each part of the GTAW power source with its name.

If you want less high frequency,:

Which is NOT a factor to consider when wiring a power unit to an electrical source?

Correctly identify the part indicated by the arrow in the figure below.

Incomplete fusion can result from excessive amperage.

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.