CWB Exam Exam Bundle (Graded A+)

CWB Welding Inspector Level III Study Guide Exam Questions and Answers Thoria is added to tunsten electrodes for what purpose? - Answer-To increase thermionic emission by lowering the work function. True or False? All pure metals have the same crystal structure. - Answer-False. Metals general...

CWB red seal review test exam questions with correct answers short-circuit transfer - Answer-which GMAW transfer is most prone to incomplete fusion? CO2 - Answer-Which shielding gas may require an in line heater at high flow rates? 6-12mm (1/4 - 1/2") - Answer-The required electrode extens...

CWB Module 12 Mechanical Testing of Welds Exam Questions with Complete Solutions 1. If a plot of stress against strain is made for a bar that undergoes plastic deformation, the stress at which a permanent set is first recorded when the bar is unloaded is known as: a) permanent set b) strai...

CWB Module 9 exam questions with complete solutions Heating, melting, and solidification (cooling) of metal leave us with two important aspects to consider: - Answer-Metallurgical transformations and stresses and strains may be induced causing distortion and possible cracking The rate at which...

CWB MODULE 6 ELECTRODES AND CONSUMABLES EXAM QUESTIONS WITH CORRECT ANSWERS EXAM PRACTICE The following electrode are not gas shielded: a)E491T-1 b)E492C-3 C)E492T-3 D)E492T-5 - Answer-c)E492T-3 EXAM PRACTICE When manufacturing fused fluxes, the temperature at which the ingredients are...

CWB Module 4 Welding Processes Exam Questions and Answers Latest Update What is Short Circuiting GMAW? - Answer-- pinches off droplets (more than 100/droplet) - runs cold (amperage is low) - high current causes spatter - used mostly on cast irons - 100% Oxygen or 75% Argon/25% CO2 What a...

CWB Level II Exam Questions and Answers Does GMAW use CC or CV? - Answer-CV What happens to the SAW weld when you switch from DCEP to DCEN? - Answer-Increased deposition rate, but less penetration What is the temperature for storing low-hydrogen electrodes? - Answer-120° Celsius When ...

CWB level 3 Module 21 practice exam questions with 100% correct answers The austenite grain size close to the weld interface (fusion boundary) is determined mainly by the: C (a) composition of the steel. (b) cooling rate. (c) weld heat input. - Answer-(c) One of the main reasons for limiti...

CWB Level 2 Module 5 Power Sources for Welding Exam Questions with Correct Answers For the SMAW process, the output adjustment at the welding power source is the voltage True or False - Answer-False Guide questions - Section 2 and 3 For the GMAW process, the output adjustment at the powe...

CWB Level 2 Exam Questions with Correct Answers Heat ex changers utilize impingement plates and occasionally tube ferrules to minimize erosion What is used to detect refractory loss on stream when erosion is suspected? - Answer-IR scan What are 3 ways to inspect an area of erosion - Answer-...

CWB Level 2 Closed Book Exam Questions with Correct Answers Reverse polarity refers to the use of a: a) AC power source, electrode + b) DC power source, electrode + c) AC power source, electrode - d) DC power source, electrode - - Answer-b) DC power source, electrode + Which welding p...

CWB level 1 exam review questions and answers If a transformer secondary coil has fewer turns than the primary coil, it is described as; A. an autotransformer B. a step-up transformer C. a step-down transformer D. a rectifying transformer - Answer-C. a step-down transformer Conventional t...

CWB Level 1 Exam Preparation Questions with Complete Solutions Each supervisor shall be able to read drawings and to properly interpret welding symbols. True or false? - Answer-True Who is responsible for ensuring that the companies personnel involved in welding are qualified and working with...

CWB level 1 exam prep questions with 100% correct answers 19. The mechanical test used to determine the ability of a material to resist failure by brittle fracture requires the use of: a) A tensile test specimen. b) A bend test specimen. c) A compression test specimen. d) An impact test ...