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

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

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

Answer: (A)

Straight polarity describes a DC setup where the electrode is the negative terminal and the workpiece is the positive. This arrangement puts more heat into the workpiece, producing deeper penetration and generally less electrode wear. The opposite DC setup, where the electrode is positive, is known as reverse polarity. Since AC alternates polarity, it isn’t described as straight or reverse polarity. So direct current electrode negative is commonly referred to as straight polarity.

Straight polarity describes a DC setup where the electrode is the negative terminal and the workpiece is the positive. This arrangement puts more heat into the workpiece, producing deeper penetration and generally less electrode wear. The opposite DC setup, where the electrode is positive, is known as reverse polarity. Since AC alternates polarity, it isn’t described as straight or reverse polarity. So direct current electrode negative is commonly referred to as straight polarity.