What is the manual welding process as defined by the Los Angeles City Building Code?

What is the manual welding process as defined by the Los Angeles City Building Code?

• A. SMAW
• B. GMAW
• C. GTAW
• D. SAW

Answer: (A)

The manual welding process refers to welding done by hand with a handheld electrode, where the welder controls every motion and the arc directly. Shielded Metal Arc Welding uses a flux-coated consumable electrode held in a portable holder; when the arc is struck, the electrode and work melt to form the weld, and the flux coating provides the shielding as it burns away. This setup means the welder’s hand, craft, and travel are guiding the entire process, without relying on a continuously fed wire or automated equipment. That’s why this option is the best answer. Other listed processes rely on machines or special equipment: a continuous filler wire through a gun (GMAW) or a non-consumable tungsten electrode with filler added separately (GTAW), or a flux-based process usually performed with mechanized equipment (SAW). The manual, hand-held nature described in the code aligns with SMAW.

The manual welding process refers to welding done by hand with a handheld electrode, where the welder controls every motion and the arc directly. Shielded Metal Arc Welding uses a flux-coated consumable electrode held in a portable holder; when the arc is struck, the electrode and work melt to form the weld, and the flux coating provides the shielding as it burns away. This setup means the welder’s hand, craft, and travel are guiding the entire process, without relying on a continuously fed wire or automated equipment.

That’s why this option is the best answer. Other listed processes rely on machines or special equipment: a continuous filler wire through a gun (GMAW) or a non-consumable tungsten electrode with filler added separately (GTAW), or a flux-based process usually performed with mechanized equipment (SAW). The manual, hand-held nature described in the code aligns with SMAW.