AG Mechanics CDE Practice Exam

In the MIG welding process, gas pressure should be set at approximately

1. 10-15 psi

2. 15-20 psi

3. 25-30 psi

4. 5-10 psi

The correct answer is: 10-15 psi

In the MIG welding process, gas pressure is typically set at approximately 10-15 psi. This pressure range is recommended to ensure proper shielding gas flow to protect the welding area from atmospheric contamination. Options B, C, and D are not the ideal choices because they have pressure ranges that are either too high or too low, which can result in poor weld quality or inadequate shielding gas coverage during the welding process.