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:

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

Welds can fail due to:

If I were welding 0.100 in. thick mild steel, initial amperage setting should be at:

A/an works like a filter to allow electrons from the desired polarity (electrode positive or electrode negative) to flow through the welding circuit, while blocking the electrons flowing in the opposite direction.

What is a sign of inadequate post flow for the shielding gas?

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

Which part of the arc cleans the surface of the weld?

When suffering from the hematopoietic syndrome, death occurs due to what?

Which of the following measures the effectiveness of ionizing radiation in causing mutations?