Final answer:
Shielded metal arc welding can be used to weld both ferrous and nonferrous metals.
Step-by-step explanation:
Shielded metal arc welding (SMAW) is a type of welding process that can be used to join both ferrous and nonferrous metals. This process involves the use of a consumable electrode coated with a flux. The flux creates a shielding gas that protects the weld puddle from atmospheric contamination. SMAW is commonly used for welding steel, stainless steel, cast iron, and some nonferrous metals like aluminum and copper.