GTAW Advanced Welding Practice Exam

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• Which polarity was commonly used in early GTAW with helium shielding?
• The amperage listed on a torch is the which rating?
• What is another name for GTAW?
• The rate at which the current changes direction in AC is called what?
• Gas preflow and postflow depend on which factor?
• What can happen if you exceed the torch amperage rating?
• To achieve proper shielding gas coverage, the GTAW torch may be angled from what range?
• Torch Build Out
• Which of the following is a valid GTAW electrode tip shape?
• The nozzle size is often based on the welder's ______.
• What is the purpose of postflow in a GTAW shielding gas system?
• What makes helium difficult to use for manual welding?
• Tungsten is easily broken so the welder must be careful when breaking it.
• Aluminum is welded with which current in GTAW
• As the gas velocity increases, which type of zone develops behind the cup?
• What is the heat distribution with DCEN welding current?
• TIG stands for
• Gas preflow and postflow depend on which factor?
• Which code designates a pipe in a 45-degree fixed position?
• A concave root surface (suck back) occurs when the back side of the root weld is what?
• Which statement best describes the filler pass in terms of fusion and penetration?
• GTAW Electrodes: Which designation corresponds to a Pure Tungsten electrode?
• Argon is also good for welding in deep grooves because it is denser than air.
• Which tungsten electrode designation corresponds to 2% Cerium Tungsten?
• What color is the EWCeO2 electrode described?
• Which option correctly describes the sequence to melt the tungsten end into the desired shape?
• What does thorium oxide addition do for the tungsten electrode?
• Which shielding gas is relatively easy to ionize?
• What is a notable property of argon that affects shielding at certain weld positions?
• What is the correct characterization of a GTAW grinding stone to avoid contamination?
• In pipe certification positions, which description corresponds to a 45-degree fixed position?
• The electrode in GTAW is:
• Torches are available in two cooling configurations. Which pair is correct?
• When holding one end of the tungsten against the grinding wheel, the other end must not be pointed toward which area?
• What does TIG stand for?
• What determines the nozzle size in GTAW?
• What is a true statement about argon shielding gas in GTAW?
• What is the first action in the sequence for shaping the tungsten end?
• Which inert gas is most commonly used as shielding gas in GTAW today?
• Which statement best defines an inert gas in GTAW context?
• Heavy flakes and large deposits of oxides are signs of what?
• Incomplete fusion can form which of the following defects?
• A full cycle of an alternating current is defined as the interval from which point to which point on the waveform?
• In cup walking, where should the nozzle be positioned?
• What describes the cover pass in GTAW pipe welding?
• Which method of adding filler metal in GTAW pipe welding is easier when the filler rod is bent to the shape of the pipe?
• Root penetration depth is measured from the top surface of the metal to what feature?
• The easiest method of protecting the root from atmospheric contamination is to use a backing gas.
• Which groove types are used in GTAW pipe welding?
• Which characteristic applies to EWCeO2 (Cerium Tungsten) electrode?
• Which shielding gases are used for GTAW?
• In GTAW, at the arc between the electrode and the base metal, what happens to the base metal and the filler metal?
• Which statement best describes recommended GTAW shielding gas flow rate?
• What does the 1G pipe welding certification position describe?
• In pipe welding positions, the term rolled describes a position that is essentially equivalent to which orientation?
• What causes concave root surface?
• Which code represents a fillet weld?
• Which industry is listed as requiring GTAW?
• Why must AC welding power use high frequencies in order to work?
• In GTAW, which gas has been combined with which to gain the benefits of cathode cleaning and deeper penetration?
• Which of the following statements about GTAW shielding gas selection is supported by the material?
• The filler rod should be held at what angle above the piece?
• What does EWG refer to in tungsten electrodes?
• In DCEN welding, approximately what fraction of heat is directed to the work versus the electrode?
• How is the filler metal introduced into the GTAW weld pool?
• DCEP heat distribution results in which penetration characteristics?
• Which industry is mentioned as benefiting from GTAW in the class summary?
• Which statement best describes the primary purpose of shielding gas in GTAW?
• What materials can be used to make nozzles?
• Which tungsten electrode designation corresponds to 1/4% to 1/2% Zirconium Tungsten?
• Tungsten materials are typically described as which combination?
• What does GTAW stand for?
• Which shielding gas is cheaper and more widely used than the other?
• After cleaning, what should you avoid doing to the pipe?
• DCEN heat distribution results in which penetration characteristics?
• How might air be drawn into the shielding gas between the nozzle and the weld?
• If root fusion is incomplete, which pass is used to help correct it?
• What is the approximate boiling temperature of tungsten?
• Which gas is sometimes used as a backing gas but is expensive?
• If the shielding gas nozzle angle is too steep, what may occur?
• Which code is used for the fixed horizontal position?
• Which current polarity provides cleaning action in GTAW?
• What is the purpose of a foot or thumb remote control switch in GTAW?
• Which component is part of the torch build out?
• Which preparation step should be completed before striking the arc when shaping the tungsten end?
• What two physical dimensions define the nozzle size?
• The filler rod end must be kept inside the protective zone.
• Which condition is indicated by a concave root surface (suck back)?
• Which designation corresponds to 1% Lanthanum Tungsten?
• Argon's ease of ionization primarily provides which benefit in GTAW?
• What is the effect of thorium oxide addition at 1-2% on erosion?
• Which term describes the time during which shielding gas continues to flow after the welding current stops?
• Which nozzle material is described as clear?
• Which statement accurately describes the 1G pipe welding certification position?
• Which material category is used for GTAW nozzles?
• How is the depth of root penetration measured?
• Which statement about arc starting with thorium oxide tungsten is true?
• In GTAW, how does DCEN compare to DCEP in current-carrying capacity?
• What does EWG denote in GTAW electrode designations?
• How many weld passes are commonly made to complete a GTAW pipe weld?
• GTAW is widely used for clean, high-quality, precision welding applications in almost all metals used in the construction and maintenance of ships and power plants.
• Why should the grinding stone used for sharpening tungsten not be used for other metals?
• Which statement best describes the function of remote controls in GTAW?
• Which condition can be observed when a weld is subjected to a root bend test?
• In pipe certification, which code corresponds to a pipe in the fixed vertical position?
• GTAW was originally developed for metals that were difficult to weld by the SMAW processes.
• Function of inert gas in GTAW welding:
• What does GTAW stand for?
• Using Table 15, determine the minimum gas flow rate for a 1/2" nozzle.
• In AC GTAW, how is heat distributed between the positive and negative half-cycles?
• In GTAW, which statement is true about the tungsten electrode?
• Which statement describes Green, Pure Tungsten Electrode (EWP)?
• Uneven buildup and burnthrough are often called ____________.
• Which practice is NOT recommended for preventing tungsten erosion?
• GTA advantages
• GTAW is also referred to as TIG or Heliarc. Which term is another name for this process?
• Which statement about thorium oxide tungsten is incorrect?
• Which statement is true about GTAW pipe joints and welding time?
• What is the typical order of passes in GTAW pipe welding?
• As the shielding gas flows out, it must form what kind of zone around the weld?
• Which characteristic applies to EWLa (Lonathium Tungsten) electrode?
• In GTAW using DCEP, what function does Argon serve?
• In GTAW, there is no ____ used to clean the weld.
• In GTAW pipe welding, what is the typical orientation of the torch and the filler rod?
• What does Hot Start refer to in GTAW?
• What is the deepest point into the joint where fusion occurs between base metal and filler metal called?
• To weld stainless steel you must do a better job ______________
• Which shielding gas mixture balances penetration and cleanliness in GTAW?
• The rate of flow is measured in which units?
• The most common sign that there is a problem with a stainless steel weld is a change _____________
• The filler pass in GTAW pipe welding comes after which pass, and what is its purpose?
• Suck back is described as a root condition where the root becomes concave due to heat conduction issues.
• In GTAW, how should the grinding marks run on the tungsten?
• What holds the molten ball of tungsten in place at the tip during DCEP welding?
• Which factors contributed to early GTAW advancements according to the source material?
• Which condition is indicated by root surface contamination, such as heavy oxide flakes?
• How is the tack weld ended so it will not crack?
• The amperage on a machine and the actual welding current are necessarily the same.
• For new welding students, what is the most frequently occurring and time-consuming problem?
• Tungsten Electrode Colors
• In the United States, AC cycles per second are how many times?
• What is the purpose of a gas lens in the TIG nozzle?
• What types of grooves are most often used on pipe?
• What gases are used as backing gases?
• Which factor best explains why limited access is a common issue in GTAW?
• Which is NOT a valid reading position for the flowmeter ball?
• Which statement is true about the usage of the 1G pipe welding certification?
• In GTAW, the arc forms the molten weld pool in relation to which material?
• Why should the grinding marks run lengthwise on the tungsten electrode?
• Rate of Flow in GTAW should be set how?
• A TIG nozzle may include a gas lens for what purpose?
• The tungsten electrode in GTAW is described as non-consumable, though it slowly degrades.
• In GTAW, cleanliness is considered next to godliness. Which option completes the idea?
• Compared to thorium tungsten, EWZr electrodes offer what difference?
• GTA can be used to make extremely ___ quality welds.
• What problem can an excessively large tungsten cause?
• Which term describes the distance from the original surface to the deepest point of fusion?
• Nitrogen in GTAW is useful as what?
• Which method is explicitly listed as an acceptable procedure for cleaning the pipe before welding?
• What practice helps prevent cracking in tack welds?
• EWTH is well suited for DCEN and not suitable for which?
• Which of the following is not a listed GTAW electrode tip shape?
• GTA welding torches are available in a wide variety of which attributes?
• Which of the following are listed as ways to remove tungsten contamination?
• Which technique involves resting the rod and the torch on the surface of the pipe joint and 'walking' down the groove with small stepping movements?
• Which statement correctly identifies an opaque nozzle material?
• Which statement about the protective zone is true?
• Which shielding gas offers deeper penetration in GTAW?
• Which gas is not a primary shielding gas but can improve weld surface cleanliness when deep penetration is needed?
• What is the recommended use of a GTAW grinding stone?
• What minimum width band must be cleaned on a pipe before welding?
• Which of the following is described as one of the common problems in GTA welding?
• What is the purpose of a hot pass in GTAW pipe welding?
• Which shielding gas combination is used to gain cathode cleaning and deeper penetration in GTAW?
• Which device is high-voltage but low-current and commonly provides assist at relatively low cost?
• What may occur if you touch the metal table with unprotected skin during GTAW?
• Which statement correctly describes argon and helium as shielding gases?
• suck back
• Which term describes the deepest point of fusion into the joint?
• Which contamination-removal method specifically involves pointing and re-melting the tungsten end?
• How can the end of a tungsten electrode be shaped?
• A hot pass may be used to correct which issues?
• Which code represents a groove weld?
• In pipe certification positions, what does the code R designate?
• How many polarities are used in GTA welding according to early advancements?
• Which practice is essential when welding stainless steel?
• What is the ideal heat distribution with DCEP Welding Current?
• Thorium oxide tungsten should not be used with which current type?
• In GTAW history, which shielding gas was originally used?
• In DCEN, which tip concentrates the arc as much as possible?
• What is the maximum allowed overlap of the cover pass bead on the pipe surface?
• Which statement about EWTH (Thoriated Tungsten) is true?
• Which phenomenon pulls contamination up onto the hot tungsten?
• GTA advantages restated
• Which term describes the time during which shielding gas flows to clear air from the nozzle?
• Which statement describes tungsten suitability for welding materials?
• Which code represents a fillet weld in pipe certification positions?
• DCEP in GTAW is known for what effect on oxide films?
• What is the name for the metal deposited on the back side of a weld?
• Joint Preparation - GTAW pipe welding
• Which tungsten designation corresponds to thorium-containing tungsten commonly used in GTAW?
• Which statement about GTAW shielding gas mixtures is supported by the material?
• What are consumable inserts used for in GTAW pipe welding?
• Which property is characteristic of tungsten as an electrode material in GTAW?
• Which statement is true about noble/ inert shielding gases such as argon and helium?
• What material is used for the GTAW electrode?
• Which practice helps minimize tungsten degradation?
• Which statement describes EWZr (Zirconium Tungsten) electrode?
• Which code represents a groove weld in pipe certification positions?
• What causes excessive root reinforcement?
• In GTAW, Hydrogen gas is not a primary shielding gas; when is it added and what does it do?
• GTA welding is the ____ of all the manual welding processes.
• Which of the following is a common pipe groove combination used in GTAW root passes?
• Which code designates a pipe in the fixed horizontal position?
• In GTAW, what is the purpose of shielding gas flowing from the gun nozzle?
• What is the amount of metal deposited on the back side of a welded joint called?
• The ______ is the cone-shaped sleeve that holds the electrode to the torch.
• In DCEP welding, approximately what fraction of heat is directed to the work versus the electrode?
• Which properties of tungsten make it well-suited for GTAW?
• The nozzle or cup is used to direct the shielding gas directly on the welding zone. Which option lists the correct components?
• What is the heat distribution with AC welding current?
• Which option best matches the meaning of the code R in pipe welding positions?
• Which statement about flowmeters is true?
• Before GMAW was developed, GTAW weldable materials were primarily which type?
• What condition must the prepared edges of a pipe be in before welding?