Compare MIG and TIG welding in terms of shielding gas, filler method, and typical applications on the farm.

• A. MIG uses a consumable wire with shielding gas; TIG uses a non-consumable tungsten with filler rod and shielding gas; MIG is faster for thicker sections, TIG for precise, thin materials.
• B. MIG uses no gas; TIG uses gas.
• C. MIG uses arc welding spool; TIG uses flame.
• D. TIG welds faster than MIG for thick sections.

Answer: (A)