🔍 Key Concepts

• How polarity is defined in DC (direct current) welding circuits • What it means when the work (base metal) is connected to the positive terminal and the electrode to the negative terminal • Differences between general process names (like shielded or inert-arc) and specific polarity descriptions

💭 Think About

• Focus on which part (work or electrode) is attached to the positive pole and how that is described in DC welding terminology • Ask yourself: when people talk about "reverse" or "straight" in welding polarity, which one usually has the electrode positive? • Eliminate answer choices that describe a type of welding process rather than how the current is flowing in the circuit

✅ Before You Answer

• Identify which terms in the choices clearly refer to polarity rather than shielding gas or arc type • Recall or look up standard DC welding conventions: EP (electrode positive) vs EN (electrode negative) and which names go with each • Make sure the definition in the question (work positive, electrode negative) matches the polarity label you choose, not the opposite arrangement