Welding of copper - Study guides, Class notes & Summaries

CWB Level II Exam 2024/2025 (100%Verified Answers) Latest Update. 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 carbi...

CWB Level II Exam 2024/2025 (100%Verified Answers) Latest Update. 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 carbi...

4A Unit 6 Questions and Answers Graded A+ (4-047-1.11) Electric arc temperatures may be as high as: Select one: a. 4250°C b. 5325°C c. 7450°C d. 8300°C d. 8300°C The two types of Penetrant Testing (PT) are fluorescent testing and: Select one: a. Developer testing b. Colour Contrast testing c. Infrared testing d. Viscous Penetrant testing b. Colour Contrast testing What are the main component metals of "white metal"? Select one: a. bronze and tin b. alumi...

CWB Welding Inspector Level III Study Guide Which of the following metals has the highest thermal conductivity? (a) carbon steel (b) stainless steel (c) aluminum - ANSWER (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. - ANSWER ...

4th Class Power Engineering Unit A6 Chapter 1: Energy Plant Construction and Operation Materials 100% Verified Materials, which will break rather than bend when subjected to an outside force are said to be: Select one: a. tough b. malleable c. hard d. brittle d Brass is an alloy of: Select one: a. copper and bronze b. copper and lead c. brass and lead d. copper and zinc d In order to avoid residual stresses after welding, alloy steels: Select one: a. cannot contain...

Welding of copper alloys containing beryllium produces fumes that are:Answer - highly toxic potentially causing disease of the lung. A welder can protect him/herself from over exposure to welding fumes by:Answer - using ventilating equipment. The minimum protective shade number for oxygen cutting should be:Answer - 3. The noise level of FCAW is typically between:Answer - 50 - 86 decibels When using an oxy-fuel gas torch and a sustained backfire occurs, what should be done...

Red Seal Exam Practice - 2 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") - c) 30 cm (12") How many millimeters is equivalent in leng...

CWB Welding Inspection Test Questions With 100% Correct Answers Latest Update Graded A+. 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...

CWB Level II Complete Answers What is the term used to describe the following condition of lost corrosion resistance? "When specific stainless steels are heated between 500-850° C, carbides form at the grain boundaries, leading to a local depletion of chromium." (A) Oxidization (B) Increased toughness (C) Solution heat treatment (D) Sensitization ️(D) Sensitization *Note: Also referred to as "carbide precipitation" — Chromium binds to carbides and appears at the grain boundari...

Air-Supplied Respirator - ANSWER-A breathing device that consists of a full face mask with a hose that connects to a freestanding compressed air cylinder. Air-supplied respirators are used in confined spaces to maintain exposure levels. Alloying Element - ANSWER-An element that is intentionally added to a metal in order to change its properties. Manganese is a common alloying element in steel. American National Standards Insitute - ANSWER-ANSI. A private, non-profit organization that admin...