Name three welding processes commonly covered in W178.2 training?

• A. SMAW, GMAW, FCAW
• B. GTAW, FCAW, SMAW
• C. SMAW, GMAW, GTAW
• D. SMAW, GTAW, FCAW

Answer: (C)

These three welding processes provide a broad foundation for welding inspection across different materials and applications, which is why they’re commonly covered in W178.2 training. Shielded Metal Arc Welding (SMAW) uses a consumable electrode with a flux coating to create the weld; it’s versatile, portable, and widely used in maintenance and fabrication, making it a staple in introductory training. Gas Metal Arc Welding (GMAW) uses a continuously fed wire with shielding gas, allowing faster deposition and easy production welding, which exposes you to common production welds and typical inspection criteria. Gas Tungsten Arc Welding (GTAW) uses a non-consumable tungsten electrode with shielding gas, delivering high-quality, precise welds on demanding materials like stainless steel and aluminum, which helps you understand weld quality and defects in detail.

While flux-cored arc welding (FCAW) is also common in industry, the three listed are the core trio most frequently emphasized at Level 1 to build a solid, transferable understanding of welding processes and inspection fundamentals.