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CWB 2 All Module Exams Questions and Answers When heated, unrestrained metal will expand: A) Transversely (across the weld) B) Volumetrically (in all directions) C) Until it upsets D) Longitudinally (lengthwise) E) Mostly across the width of the weld - Answer-B) Volumetrically (in all directions) It would be INCORRECT to say that peening: A) Should not be used on the last pass B) Puts surface of the weld in compression C) Should not be used on root passes D) Can be used to for...

CWB Codes and Standards Practice Test Questions with Correct Answers CSA S473 - Answer-includes a comprehensive fracture control plan. Most standards are created by: - Answer-voluntary efforts In Canada, shop inspections of pressure vessels are performed by: - Answer-an inspector employed by the regulatory authority in the province of fabrication. What are the three main categories of qualified personnel required by CSA W47.1 and CSA W47.2? - Answer-Welding Engineer, Welding Superv...

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 specimen . e) A spectrographic test. - Answer-d) An impact test specimen . 20. Select the electrode that would be best suited for welding high sulphur steels in the flat position: a) E4924 b) ...

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 approved welding procedures in the shop or in the field? A) the welders themselves B) no one is responsible because the welders have shown their performance abilities when they are qualified in a...

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 transformer-rectifiers; A. convert high frequency current into lower voltage output B. convert alternating current into direct current at lower than line voltage C. convert low voltage directcurrent...

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 process(es) can result in metallic inclusions in the weld? a) SMAW. b) FCAW. c) GMAW. d) GTAW. e) SAW - Answer-d) GTAW. In producing a drawing for a scale of 1:50, what would be the dista...

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-Visual UT checks RT to check extent of metal loss What is the description of Mechanical Fatigue? - Answer-Mechanical fatigue is a form of degradation that occurs when a component is exposed to ...

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 power source is the voltage True or False - Answer-True Guide questions - Section 2 and 3 Using a constant current welding power source, a self-regulating welding arc is achieved using a: a) Vo...

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 limiting the maximum heat input when welding HSLA steels is to: (a) keep the HAZ hardness below 350 HV. (b) preserve the HAZ toughness. (c) promote a bainite structure. - Answer-(b) True or false? 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 using a consumable electrode in DCEN, the majority of the heat is concentrated on the __________. (A) Electrode (B) Workpiece - Answer-(A) Electrode When using a non-consumable electrode in DCE...

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 are some characteristics of Globular Transfer GMAW? - Answer-- irregular shape due to droplets splashing in weld pool - Higher Current gives better penetration - 100% Oxygen or 75% Argon/25% CO2 W...

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 melted together is: a) 800-1000 Celsius b) Celsius c) Celsius d) Celsius - Answer-c) Celsius EXAM PRACTICE Bonded fluxes have a lower density than a fused fluxes, and therefore less flux i...

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 a lamp converts electrical energy into heat and light is given by: - Answer-current times voltage The units of current times voltage is: - Answer-amps x volts = joules per second (or watts) The...

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) strain c) the elastic limit d) the proportional limit - Answer-c) the elastic limit Exercise Questions - Section 2 & 3 2. True or False Stress is load divided by the original cross section...

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 extension for short-circuit transfer is: flat and horizontal - Answer-Which position is SAW normally performed in? intended for single pass only - Answer-What do the letters GS mean in the following t...

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 generally have one of three basic structures. Which crystal structure(s) is (are) composed of close-packed planes? - Answer-FCC and HCP The real strength of metals is lower than the theoretical value b...

MODULE 20, CWB: STRUCTURE and PROPERTIES of METALS EXAM QUESTIONS WITH VERIFIED ANSWERS 15. Fluxes or mixtures of compounds that do not mix with metals in the molten state are commonly used to shield weld metal. The composition of a flux depends on the metal for which it is being used, and usually designed to have a melting point -----------that of the metal. ly the same b. lower c. higher d. depends on the carbon content - Answer-15. answer B, sect 10.2 16.In welding Aluminium, the ma...

NSC 101 Exam 1 Questions and Answers 2 Exam (elaborations) NSC 101 Exam Questions and Answers (Graded A+) 3 Exam (elaborations) NSC 101 Exam Questions with Verified Answers (100% Pass) 4 Exam (elaborations) NSC 101 Final Exam Review Questions and Answers 5 Exam (elaborations) NSC 150 - Final Exam Questions with Correct Answers 6 Exam (elaborat

NSC 101 Exam 1 Questions and Answers Which is NOT a characteristic of a nutritious diet? A. Variety B. Calorie Control C. Moderation D. Taste - Answer-D. Taste What factors drive food choices? A. Taste B. Convenience C. Price D. All of the above - Answer-D. All of the above What is the most nutrient dense meal? A. 400 calories of oil B. 400 calories of chicken C. 400 calories of cake D. 400 calories of vegetables - Answer-D. 400 calories of vegetables Why can't we assume...

NSC 101 Exam Questions and Answers (Graded A+) Four fat-soluble vitamins - Answer-Vitamin A, vitamin D, vitamin E, vitamin K. Fat is required for the proper absorption and/or metabolism of these. Two ways cholesterol is used by the body - Answer-Precursors for steroid hormones Increase fluidity of cell membranes Phospholipids - Answer-Choline:Phosphate: Glyereol Backbone: 2 Fatty acid chains Dietary Fats - Answer-Triglyerides What enzyme does the stomach secrete - Answer-Gastr...