Module 29105-15 Base Metal Preparation (19-20). 2023/2024 already passed

Module 29105-15 Base Metal Preparation (19-20).fires Most work site ___________ related to welding operations are caused by cutting torches. strong The more carbon content steel has, the more ____________ the steel becomes. austenitic A term that refers to a type of metal stainless steel group, which is most often encountered by welders. chromium Common-grade stainless steels normally contain at least 11 percent _________________. classified Grain structures are the way in which common grade stainless steels are ___________________. porosity __________________ is the most common weld defect caused by surface contamination. F T/F It is not necessary to clean new metal. F T/F Metals only need to be cleaned if they show signs of corrosion. F T/F Metals only need to be cleaned if they are painted or coated. T T/F All metals should be cleaned before welding. compressed When two pieces of metal are welded end-to-end and the force is applied inwardly from each end, the pieces and the weld are being ____________________. surfacing welds These welds can be used to build up surfaces. (2 words) lap This is one of the joints that is used with a plug and slot weld. half Compared to a single V-groove weld, a double V-groove weld requires _________ the weld metal. 60 degrees What is the typical groove angle used for welding open-root welds on plate? fillet weld When applying a _____________ ________ to an outside corner joint, ASME (the American Society of Mechanical Engineers) approves of the half-lap joint. flat A welder should always attempt to position the weldment so that welding is performed in this position. welding code This is a detailed list of the rules and principles that apply to specific welded products. (2 words) slower Considering the two joint preparation methods-mechanical and thermal-the mechanical method is (faster or slower?). cleaning Welded pipe fittings are typically beveled from the factory, but need _______________. Nibblers _________________ prepare the edge of base metals using a reciprocating punch. thermal cutting Cutting metal with oxyfuel, plasma arc, or air-carbon arc processes is referred to as _______________ ____________. air carbon arc cutting Gouging root welds and seams is best done by this cutting process.