Welding of copper - Study guides, Class notes & Summaries

Which of the following metals has the highest thermal conductivity? (a) carbon steel (b) stainless steel (c) aluminum (c) The Ellingham diagram (a) is a plot of thermal conductivity against temperature, (b) shows the free energy of oxide formation against temperature. (c) shows the rate of oxidation of metals against temperature. (b) True or False? A metal with a high negative free energy of oxide formation will generally require greater shielding from the atmosphere durin...

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 True or False: The cable from the workpiece back to the welding machine is called the "ground lead". False. The correct term is the "work lead". What is the type of radiation that can damage living cells? Ionizing Name two examples of ionizing rad...

CWB Module 1 Questions With 100% Correct Answers Latest Update Graded A+. True or False? Creating a safe working environment is strictly the responsibility of the employer? - Correct Answer-False, it the the joint responsibility of the employer and employee. WHMIS stands for: a) Workers Health Monitoring System b) Workplace Hazardous Materials Information System c) Workers for a Healthy Manufacturing Industry Society - Correct Answer-b) Workplace Hazardous Materials Information System Wh...

Red Seal Exam Practice - 2 | Questions with 100% Correct Answers | Latest Update 2024 | Verified What does 3F designate on a welding specification sheet? a) flat fillet weld position b) horizontal fillet weld position c) vertical fillet weld position d) overhead weld position - c) vertical fillet weld position With the scale of a drawing at 1:5, what is the length of line on the drawing for a plate length of 150 cm (59")? a) 5 cm (2") b) 15 cm (6") c) 30 cm (12") d) 75 cm (30") -...

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 ANSWER (D) Sensitization Note: Also known as "carbide precipitation" -- Chromium binds to carbides, and "sweats out" at the grain boundaries On a ra...

CWB Level 2 Study Modules 4-5-6-7-8--22 Exam Questions With Verified Solutions During arc welding there is a zone adjacent to the weld metal that reaches high temperatures but does not melt. What is the name of this region? - ANS Heat Affected Zone (HAZ) In parallel electrical circuits, the voltage across each resistor is the same since each path is connected to the same voltage source. Select the correct statement. A. in each parallel path the resistance must be equalized to create...

CHST Exam Questions With Correct Answers Latest Update (Verified) What is the distance a worker needs to maintain from power lines? - ANSWER 10ft What does the severity of electric shock depend on? - ANSWER Path of current, amount of current, duration of exposure True or false: electrical current as low as 75 milliamps can cause death? - ANSWER True What are some examples of surcharge loads? - ANSWER Spoils pile and equip being too close to walls What is the correct extension cord for con...

CWB Level II Exam Questions and Correct Answers What is the Canadian Standard for safety in welding? - Answer-CSA W117.2 What is the typical three-phase input voltage in most Canadian welding shops? - Answer-600V True or False: The cable from the workpiece back to the welding machine is called the "ground lead". - Answer-False. The correct term is the "work lead". What is the type of radiation that can damage living cells? - Answer-Ionizing Name two examples of ionizing radiatio...

True or False? Creating a safe working environment is strictly the responsibility of the employer? - CORRECT ANSWER False, it the the joint responsibility of the employer and employee. WHMIS stands for: a) Workers Health Monitoring System b) Workplace Hazardous Materials Information System c) Workers for a Healthy Manufacturing Industry Society - CORRECT ANSWER b) Workplace Hazardous Materials Information System What are three ways that WHMIS information is conveyed to t...

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 - ANSWER-(B) dark What is the Canadian Standard for safety in welding? - ANSWER-CSA W117.2 What is the typical three-phase input voltage in most Canadian welding shops? - ANSWER-600V True or False: The cable from the workpiece back to the welding machine is called the "ground lead". - AN...