Nebraska GTAW FFA TIG Welding Practice Exam

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• What torch cup size is best for aluminum or large welds?
• Which technique helps control puddle width during TIG welding?
• Why should shielding gas begin flowing before arc strike in TIG welding?
• What is a plausible sign of porosity in a TIG weld?
• What is the common shielding gas for TIG welding?
• Which component of the TIG torch is typically associated with shielding gas flow and must be kept clean?
• What is the purpose of post-flow gas in TIG welding?
• Which factor most directly determines shielding gas coverage around the weld pool?
• What happens if the post-flow duration is too short?
• Which device is used to measure shielding gas flow in TIG welding?
• If welding at 150 A, approximately how long should the post-flow last?
• Name the four primary positions typically used in TIG welding.
• Hydrogen porosity in TIG welds is often caused by which condition?
• What polarity is standard when TIG welding aluminum?
• What is a key takeaway regarding bead quality from these TIG welding notes?
• Tungsten spitting cause?
• What is the typical gas flow rate for TIG welding?
• Which tungsten type is recommended for aluminum welding?
• What is the recommended process for root pass purge when welding stainless steel with TIG?
• What is a typical travel angle when feeding the torch along a joint in TIG welding?
• How can crater cracks be prevented at the end of a weld?
• A sign that shielding gas may be contaminated is what weld appearance?
• Which polarity is typically used for DC TIG welding of carbon steel?
• How is the heat input of a TIG weld calculated?
• What tool is best for cleaning aluminum before TIG welding?
• Why is it important to have clean base metal before TIG welding?
• Which method should you use to start the TIG arc?
• Which of the following is a common technique to strike an arc in TIG welding without striking the metal?
• What is the purpose of shielding gas in TIG welding?
• Which polarity is preferred for welding stainless steel with TIG?
• What is the first step before TIG welding?
• What technique is recommended to prevent crater cracking at the end of a TIG weld?
• Shiny, clean bead indication?
• Which sequence correctly describes a TIG welding machine shutdown?
• What is the main feature of TIG welding?
• Which protocol helps prevent tungsten overheating?
• What is the consequence of lost shielding gas coverage?
• Which tungsten type is commonly preferred for easier arc starting on DCEN?
• How should you feed the filler rod during TIG welding?
• Which option correctly identifies the TIG arc starting method?
• What color is tungsten when it is lanthanated?
• Which statement correctly describes AC TIG operation?
• What does GTAW stand for?
• How should tungsten electrodes be stored to prevent contamination?
• Which statement is true about aluminum welding tungsten types?
• If a root pass purge is not performed when welding a stainless steel joint, which defect is most likely to occur on the backside?
• What is the proper shutdown procedure for a TIG welding power source?
• What PPE is required for TIG welding?
• What is a common technique to strike an arc in TIG welding without touching the metal?
• Typical arc length in TIG welding relative to tungsten diameter?
• Which polarity is used when TIG welding steel?
• DCEN stands for?
• What is the purpose of pre-flow and post-flow gas in TIG welding?
• What is the best indicator of proper shielding gas coverage on a weld?
• What is back purge and when is it typically used in TIG welding?
• What is the effect of amperage being too high in TIG welding?
• Which filler rod is commonly used with 6061-T6 aluminum in TIG?
• How does gas cup size affect shielding coverage and arc performance?
• Which combination helps prevent overheating of thin metal during TIG welding?
• What is the primary purpose of shielding gas in TIG welding?
• Which control on an AC TIG machine adjusts how aggressively the cleaning action occurs on aluminum?
• Tungsten color for 2% ceriated?
• What shade lens is recommended for TIG welding?
• Name two common tungsten electrode types used in TIG welding.
• What is the main purpose of shielding gas in TIG welding?
• Which filler metal is typically used for TIG welding mild steel?
• Which practice helps minimize porosity and inclusions in TIG welds?
• What happens if the AC balance is set too high during aluminum TIG welding?
• DCEP stands for?
• Why is preheating steel sometimes performed before TIG welding?
• What is the most common butt weld configuration for TIG on plates of equal thickness?
• When amperage is too low, what happens to the weld?
• How should filler metal be fed during TIG welding?
• What is crater cracking and how can it be prevented in TIG welding?
• Which item is NOT listed among the essential PPE for TIG welding?
• What is the recommended post-flow duration per 10 amps of welding current?
• What does GTAW stand for?
• What color codes are associated with lanthanated tungsten?
• What is the effect of moving too slow during TIG welding?
• Which statement about shielding gas in TIG welding is true?
• What action should be avoided during TIG welding?
• What is the correct procedure to start the TIG arc?
• What surface prep steps are recommended for aluminum prior to TIG welding?
• What is the recommended explanation for post-weld cleaning of aluminum TIG welds?
• What causes tungsten contamination in TIG welding?
• What two factors mainly determine TIG travel speed and heat input?
• What is the effect of moving too fast during TIG welding?
• What method is used to clean steel before TIG welding?
• What is crater fill and why is it used in TIG root passes?
• Which statement about handling tungsten electrodes is true?
• Which is an advantage of using thoriated tungsten with DCEN?
• Why is cleanliness emphasized in TIG welding?
• For AC TIG welding of aluminum, what tungsten tip shape is typically recommended?
• What polarity is typically used for DC TIG welding of carbon steel?
• How does increasing tungsten diameter affect arc stability and current range in TIG welding?
• What is the effect of increasing heat input on a TIG weld?
• What torch movement helps control puddle width?
• Which statement is true about AC TIG welding on aluminum?
• How should the filler rod behave as it enters the puddle?
• Which symptom indicates the post-flow duration was too short?
• If the bead is shiny and clean, what does it indicate about gas flow and metal cleanliness?
• What is the function of the back cap in a TIG torch?
• What is a safe practice regarding tungsten during TIG welding?
• In TIG welding, what is the function of the separate filler rod?
• Which polarity is used for TIG welding aluminum?
• What is the purpose of a gas cup in a TIG torch?
• What is the method to start the TIG arc?
• In TIG welding heat input calculations, what machine efficiency is typically used?
• What is the purpose of post-flow during finishing TIG welding?
• Which factor is a common cause of porosity in TIG welds?
• Which device should be used to verify argon flow for TIG welding?
• What is the typical power source for TIG welding?
• What is the reason for using AC when TIG welding aluminum?
• How is fit-up defined and why is it critical in TIG welding?
• How should you finish a TIG weld procedure?
• Best torch cup size for small TIG work?
• Which items should be checked in a pre-weld inspection for TIG welding?
• Which step best helps prevent crater cracking at the end of a TIG root pass?
• Effect of DCEP in TIG welding?
• Parts of the TIG torch that must be kept clean?
• What tool is used for cleaning aluminum before TIG welding?
• What is the tungsten tip shape recommended for AC welding?
• What is the purpose of ensuring a proper root opening and tight fit-up in a butt weld?
• How should the edges be prepared for a butt weld in TIG welding?
• In TIG welding, if travel speed increases while volts and amperes stay the same, what happens to heat input?
• In TIG welding, what is the effect of using a longer arc length compared to a shorter arc length?
• How does humidity affect TIG welding and how can porosity be prevented?
• How should tungsten be prepared for DC welding?
• What is a common defect seen in TIG welds caused by moisture or oil contamination?
• What equipment is most essential for protecting the welder's eyes during TIG welding?
• Dull, gray bead indication?
• Which color code represents pure tungsten?
• What is the purpose of the filler rod in TIG welding?
• What action helps prevent crater cracks when stopping a weld?
• What is the fundamental difference between DC TIG and AC TIG?
• Filler rod angle from the workpiece?
• Which statement best describes a square butt joint?
• Which filler rod may be used as an alternative to 4043 for aluminum depending on alloy and environment?
• Which combination best describes essential PPE for TIG welding safety?
• Tungsten color for 2% thoriated?
• Which gas is not commonly used as TIG shielding gas?
• Which practice best prevents contamination when tungsten is not in use?
• What is the tungsten tip shape recommended for DC welding?
• Higher AC frequency (such as 120 Hz) in TIG welding aluminum is sometimes used to achieve what effect?
• If you increase the AC balance toward cleaning action, what happens to cleaning action and penetration?
• Which shielding gas is most commonly used for TIG welding most metals?
• Which current is preferred for welding stainless steel with TIG?
• Tungsten color for pure tungsten?
• Which color corresponds to 2% ceriated tungsten?
• Which metals commonly require back purge during TIG root passes to prevent oxidation?
• What is the best torch angle for flat welding?
• Which is an advantage of using DCEN in TIG welding?
• What is the proper tungsten tip preparation for AC TIG welding?
• Which gas is most commonly used as shielding gas for TIG welding of most metals?
• Which statement is true about shielding gas in TIG welding?
• Which tungsten tip shape is typically used for AC welding?
• Which filler metal is commonly used for TIG welding 304 stainless steel?
• What is interpass temperature in TIG welding and why is it controlled?
• Which color corresponds to 2% thoriated tungsten?
• How should the tungsten electrode be handled to avoid contamination?
• Name three common TIG weld defects.
• Which statement correctly identifies two common TIG tungsten electrode types?
• What is an indicator of good gas coverage around the weld?
• For DC TIG welding of steel, what tungsten tip shape is typically recommended?
• What does the term 'wetting' mean in TIG welding?
• What is a typical shielding gas flow rate for TIG welding?
• To prevent overheating thin metal during TIG welding, which adjustment is recommended?
• What is the consequence of leaving contaminants on base metal before TIG welding?
• What effect does using a gas lens have on arc stability?
• Which tungsten tip shape is typically used for DC welding of steel?
• Which non-destructive testing methods are commonly used to inspect TIG welds in a shop?
• What AC frequency is commonly used for TIG welding aluminum?
• What is the purpose of grinding direction for tungsten?
• Gas lens purpose?
• What action should you take if the tungsten becomes contaminated?
• In DC TIG welding, how should the tungsten be ground to optimize arc start?
• What is the function of a high-frequency starter in TIG equipment?
• Causes of porosity in TIG welds?
• Which weld condition suggests contaminated shielding gas?