Direct current electrode positive is commonly referred to as which polarity?

Direct current electrode positive is commonly referred to as which polarity?

• A. Reverse polarity
• B. Straight polarity
• C. AC
• D. DC negative

Answer: (A)

Direct current electrode positive is called reverse polarity. In this setup the electrode is connected to the positive terminal and the workpiece to the negative terminal. That polarity is contrasted with straight polarity, where the electrode is negative and the workpiece is positive. Using reverse polarity tends to drive more heat into the workpiece and produce deeper penetration, which is the practical reason welders refer to this as reverse polarity. AC would not be described by straight or reverse polarity since it continually alternates polarity.

Direct current electrode positive is called reverse polarity. In this setup the electrode is connected to the positive terminal and the workpiece to the negative terminal. That polarity is contrasted with straight polarity, where the electrode is negative and the workpiece is positive. Using reverse polarity tends to drive more heat into the workpiece and produce deeper penetration, which is the practical reason welders refer to this as reverse polarity. AC would not be described by straight or reverse polarity since it continually alternates polarity.