CWB Level II exam 2023 with 100% correct answers

What is the term used to describe the following condition of lost corrosion resistance? "When certain stainless steels are heated between 500-850° C, carbides form at the grain boundaries and cause a local depletion of chromium." (A) Oxidization (B) Increased toughness (C) Solution heat treatment (D) Sensitization correct answers(D) Sensitization Note: Also known as "carbide precipitation" -- Chromium binds to carbides, and "sweats out" at the grain boundaries On a radiograph, undercut appears as a _________ line. (A) light (B) dark correct answers(B) dark What is the Canadian Standard for safety in welding? correct answersCSA W117.2 What is the typical three-phase input voltage in most Canadian welding shops? correct answers600V True or False: The cable from the workpiece back to the welding machine is called the "ground lead". correct answersFalse. The correct term is the "work lead".