Red Seal Welding Practice Exam

What polarity is mostly used for ACAG?

1. AC

2. DCEN

3. DCEP

4. None

The correct answer is: DCEN

ACAG, which stands for Alternating Current Arc Gouging, operates under alternating current (AC) conditions specifically designed for gouging operations. In many gouging processes, using AC is beneficial because it allows for smoother arc transfer and improved penetration, making it ideal for effectively removing metal. While DCEN (Direct Current Electrode Negative) is an option used in various welding applications, it is not typically associated with ACAG. In the context of arc gouging, the use of AC ensures a consistent arc and reduces the total heat input, resulting in better control of the gouging process. Thus, AC is the most suitable choice for ACAG practices as it aligns with industry standards and techniques used to optimize performance during the gouging process.