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CWB WELDING SCRIPT 2026 FULL SOLVED
CONTENT
◉joint. Answer: the junction of the workpieces that are to be joined ◉supplementary welding symbols. Answer: ____ ___ are used to provide complementary information to the basic elements of a basic welding symbol ◉weld symbol. Answer: a symbol that designates each type of weld, it is drawn in contact with the reference line and graphically represents the the type of weld to be made ◉left side. Answer: the vertical line of a weld symbol must always be on the ___ ____ in the weld symbol ◉arrow side. Answer: a weld symbol placed below the reference line of a welding symbol is the be made on the ___ ___ ◉plate to be bevelled. Answer: for bevel and groove welds, if an arrow has a break then the arrow is pointing toward the ____
◉closest. Answer: in a welding symbol with multiple reference line the sequence of operations start with the line _____ to the the arrow ◉to be removed. Answer: if an R printed in the rectangle of a backing bar designation for a welding symbol, the backing bar is _____ after welding ◉consumable insert. Answer: a ____ ____ is a piece of filler metal placed at the root of a weld that is completely fused into the root of the joint ◉square. Answer: the symbol for a consumable insert in a welding symbol is a ____ placed on the opposite side of the reference line from the weld ◉Gouge to sound metal. Answer: GTSM in the tail of awelding symbol means ____ ◉dotted lines. Answer: the designation of joint to be prepared after assembly of two members is showed using ___ ___ to draw the weld symbol ◉seal weld. Answer: welds intended to provide a water tight seal are have ___ ___ printed in the tail of the welding symbol
◉constant current. Answer: what kind of power source has a drooping volt-ampere curve ◉AC SMAW. Answer: benifits of using __ ____ are :
- arc blow is rarely a problem
- suitable for welding thick sections with large diameter electrodes ◉risk of electrocution, limited choice of electrodes. Answer: the cons of us AC SMAW are ____ ◉120. Answer: low hydrogen rods should be stored in ovens at _____ degrees celcius ◉once. Answer: low hydrogen electrodes can only be rebaked how many times? ◉ 230 - 260 2 hours. Answer: low hydrogen electrodes exposed to ambient temperatures and humidity should be rebaked at ____ degrees Celsius for _ _____ ◉calcium carbonate. Answer: ____ ____ is an important ingredient in low hydrogen flux because it produces a fast freezing slag
◉largest. Answer: when welding with SMAW the _____ practicable electrode should be selected ◉repair. Answer: SMAW is typically used for ____ and maintence, among other things ◉constant voltage. Answer: GMAW uses what kind of power source ◉DCEP. Answer: GMAW almost exclusively uses the ____ polarity ◉v shaped. Answer: When welding with solid steel or stainless steel wires in GMAW you should use ___ ___ drive rolls ◉knurled. Answer: When welding with metal cored or flux cored wires in GMAW you should use ___ drive rolls ◉u shaped. Answer: When welding with aluminum wires in GMAW you should use ___ ___ drive rolls ◉Ionization potential. Answer: the amount of voltage required to produce a plasma column in a gas is called the ◉more voltage. Answer: gases with a higher ionization potential require ___ ___ to initiate an arc
◉reduced penetration, risk of incomplete fusion. Answer: DCEN can be used in single wire SAW to achieve higher deposition rate but results in : ◉increase. Answer: in SAW a change from DCEP to DCEN requires a voltage ____ of 2-3volts to achieve the same bead profile ◉voltage sensing. Answer: consrant current power sources require a ___ ____ wire feeder to maintain arc length ◉AC. Answer: In SAW ____ Current is typically used for high currents, multiple electrode systems and in narrow gap welding where arc blow may be a problem ◉current. Answer: as electrode extension increases, ____ decreases ◉undercut and slag inclusions. Answer: common flaws in SAW are: ◉iron ore. Answer: hematite, limonite, magnatite and taconite are examples of: ◉3 to 4 percent. Answer: pig iron contains about how much carbon?
◉teeming. Answer: filling ingot moulds with the metal from a refining furnace is referred to as: ◉hypoeutectoid steel. Answer: steel with a carbon contentless than 0.8% is called: ◉hypereutectoid steel. Answer: steel with a carbon content more than 0.8% is called: ◉normalizing. Answer: _____ is a process of refinig the grain size of a steel to improve its properties ◉912c. Answer: transitional temperature of steel from FCC to BCC ◉lamination. Answer: a discontinuity found in the base metal that lies parallel to the surface ◉procedure qualification RECORD. Answer: PQR stands for ◉prod method. Answer: mag particle inspection using a hand held prod to locate surface defects ◉quartz. Answer: a material used to create a piezoelectric signal in transducers (probes) for ultrasonic inspections
◉Electricity. Answer: Xrays for radiographic testing are produced by submitting a material to ____ in order to make it produce heat and xrays to produce images ◉radioactive isotopes. Answer: gamma rays for radiographic testing are produce by _____ to produce images ◉thicker. Answer: the shorter the wave length the ____ the steel can be penetrated with radiographiv examination ◉minute defects may not appear on film. Answer: what is the main limitation of radiographic examination? ◉Penetrameter. Answer: a decive also known as an image quality indicator (IQI) used to verify that a radiographic image meets code requirements: ◉Standards Council of Canada. Answer: SCC stands for : ◉Canadian Standards Association (CSA). Answer: CSA stands for ◉canadian general standards board. Answer: CGSB stands for ◉welding. Answer: CSA standards starting with "W" refer to:
◉pressure retaining. Answer: CSA standards starting with "B" refer to: ◉materials. Answer: CSA standards starting with "G" refer to: ◉nuclear. Answer: CSA standards starting with "N" refer to: ◉S. Answer: CSA standards starting with "_____" refer to Design of structures with fabrication references included ◉shall. Answer: In CSA standards the word "____" is used to express a requirement ◉should. Answer: In CSA standards the word "____" is used to express a recommendation or that which is advised but not required ◉may. Answer: In CSA standards the word "____" is used to express an option or that which is permissible within the limits of the standard ◉CSA W48. Answer: electrodes are certidfied under what canadian standard
◉50 mm (2 inches). Answer: CSA W59 states surface to be welded must be free from oil, scale, moisture, dirt etc, within _____ of all weld locations ◉75mm. Answer: CSA W59 states that parts to be welded must be preheated to the minimum interpass temperature for a distance from the weld equal to the thickness of material but not less than
◉0.25mm. Answer: CSA W59 states amximum allowable depth of undercut for a weld loaded cyclically transverse to the weld is _____ ◉camber. Answer: the term for vertical out-of-straighteness in a structural member (I-Beam): ◉sweep. Answer: curvature in the plane of the flange on a structural meber (I-Beam) is called: ◉discontinuity. Answer: any disruption in the normal physical compositional features of a part; A _____ is not necessarily a defect ◉defect. Answer: a discontinuity(s) that by nature or accumulated effect renders a part or product unable to meet minimum applicable acceptance standards or specifications.
CAn be though of as a "rejectable discontinuity" ◉process, metallurgical, design related. Answer: discontinuities can be broken into three general classes: ◉hot cracks. Answer: occur as the weld metal solidifies or at an elevated temperature as the weld is cooling (abov 150 degrees c) ◉Aligned Porosity. Answer: A localized grouping of porosity forming an approximately linear pattern ◉carbon equivalent. Answer: the sum of the alloy additions that promote hardening similar to carbon ◉cluster porosity. Answer: A localized array of porosity having a random geometric distribution. ◉cold cracks. Answer: cracks that occur under150 degrees C ◉dark straight line. Answer: in a radiograph, ibncomplete penetration appears as:
◉asphyxiant. Answer: a gas that replaces oxygen in the air causing suffocation ◉Attenuation. Answer: to weaken or reduce in force, intensity, effect or quantity ◉chronic reaction. Answer: symptoms that develop and apear over a period of time usually caused by a repeated exposure to low concentrations of a hazardous substance (WHMIS) ◉coalescence. Answer: the growing together, or growth into one body of the materials being joined ◉Deoxidation. Answer: the addition of anelement such as manganese, aluminum or silico to molten steel to reduce the amount of oxygen below 0.2% ◉Ductility. Answer: the ability of a substance to be plastically deformed to an extent without fracturing ◉fatigue. Answer: the progressive and localized structural damage that occurs when a material is subjected to cyclical loading
◉ferrite. Answer: A solid solution of iron with a small amount of carbon that has a body centered cubic structure that dissolves very small amounts of carbon. Below 723 degrees C this structure is virtually pure iron ◉flash point. Answer: The lowest temperature to which a substance must be heated in order for the substance to give off vapors which will ignite ◉lamellar tearing. Answer: a subsurface terrace and step like crack in the base metal with a basic orientation para;;e to the wrought surface caused by tensile stresses in the trough thickness direction of the base metal weekend by the presence of small dispersed, planar shaped, non metallic inclusions parrallel to the metal surface ◉latency. Answer: the time between first exposure to a substance and first appearance of a disease (WHMIS) ◉material safety data sheet. Answer: MSDS stands for: ◉metastable. Answer: a relatively unstable, transient, but significant state or condition of a chemical or physical system ◉Odour threshold. Answer: The level in ppm at which most people will be able to smell the substance
