Teachers, parents, and administrators might want to know how well students are reading and writing in general, independent of the specific instructional program. This requires a different type of formal assessment.
GMAW or Gas Metal Arc Welding. More commonly called MIG welding this welding type is the most widely used and perhaps the most easily mastered type of welding for industry and home use. The GMAW process is suitable for fusing mild steel, stainless-steel as well as aluminium. GTAW or Tungsten Inert Gas.
Spot Welding can be considered as one of the easiest welding techniques to learn. It is used to primarily weld sheet metals via a series of welding spots. Think of it as if you have replaced nut-bolts with the weld spots to make the joint permanent.