my question) The welding process by Metal Inert-Gas (MIG) welding is a. slower than the welding process by Tungsten Inert-Gas (TIG) welding b. faster than the welding process by Tungsten Inert-Gas (TIG) welding c. at same speed as the welding process by Tungsten Inert-Gas (TIG) welding d. at unpredictable speed
MIG welding is faster than TIG welding. (The process of chossing over TIG/MIG depends on cost and quality of the weld required and also depends on the type of metal used for welding- not sure of the context, you are in)