CWB - Chapter 9 (Pratical welding inspection)fully solved graded A+ 2023/2024

CWB - Chapter 9 (Pratical welding inspection)What is the term used to describe an interruption of the typical structure of a material? - correct answer Discontinuity Which of the following terms refers to an undersized fillet weld? - correct answer Insufficient leg When examining the face of a single V-groove weld in a pipe, the amount of weld metal in excess of what is required to fill the joint is called ___________ - correct answer Weld reinforcement List three surface contaminants that could cause overlap of a fillet or groove weld. - correct answer -Oil -Paint -Rust -Scale The term convexity normally refers to the profile of what type of weld? ________ - correct answer Fillet weld A groove weld is determined to have undercut along toes of the weld. What should be done to determine if the condition is allowable by the applicable standard? - correct answer An appropriate gauge should be used to determine the depth of the undercut True or False? Hydrogen-induced cold cracks may occur in the weld metal or heat-affected zone. - correct answer True Concavity of fillet weld is defined as: - correct answer The maximum distance from the face of a concave fillet weld perpendicular to a line joining the weld toes. When making a fillet weld in a lap joint, melting of the base plate upper edge may be caused by: - correct answer Operator technique True or False? Careless back gouging of a single V-groove weld can lead to out-of-line weld beads. - correct answer True Which of the following is a fusion discontinuity in a complete joint penetration groove weld? - correct answer -Incomplete sidewall fusion -Underbead non-fusion Which term below describes a condition at the root of a groove weld where the weld metal does not extend through the joint thickness? - correct answer Incomplete joint penetration. Which of the following is considered a process or procedure related weld discontinuity? Select all that apply: - correct answer -Lamellar tearing -Distortion -Cracking -Porosity What type of porosity usually occurs with an orientation perpendicular to the weld face? - correct answer Piping List three probable basic causes of porosity: - correct answer -moisture -surface impurities -chemistry imbalance -technique -air flow -flux -slag