CWB Level II Exam Questions and Answers Graded A

CWB Level II Exam Questions and Answers Graded A 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 - ️️ (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 - ️️ (B) dark What is the Canadian Standard for safety in welding? - ️️ CSA W117.2 What is the typical three-phase input voltage in most Canadian welding shops? - ️️ 600V