Higher welding currents (amperage) result in ______ fluid weld puddles.

• A. Less
• B. More
• C. Same
• D. No change

Answer: (B)

More heat is produced when welding current increases, which melts more metal and makes the molten pool larger and more fluid. The puddle grows as amperage raises the heat input, so you get a bigger, more fluid weld pool. If you lower the current, the puddle becomes smaller and less fluid, and keeping the current the same would keep the puddle size about the same. (Note: very high amperage can lead to excessive penetration or burn-through, but the basic relationship is that higher amperage yields a larger, more fluid puddle.)