AIT Welder 2nd Period Practice Test

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• What are the main advantages and limitations of GTAW (TIG) compared to SMAW and GMAW?
• What is the typical carbon content range of steel, and what property does carbon primarily confer?
• For stainless steel, which filler metal is commonly used with GTAW or GMAW?
• Chromium low alloy steels are characterized by which of the following statements?
• Grey cast iron is the most common type of cast iron.
• Which type of rolling typically results in an elongated grain structure?
• What is brittle fracture, and which welding metallurgical conditions increase its risk?
• Silicon in steel has what primary effect regarding oxidation resistance and hardenability?
• What is weld overlap and how is it different from reinforcement?
• Which of the following is NOT a characteristic of low carbon steel?
• Grey cast iron is also known for which property, aiding noise damping and wear resistance?
• What is the carbon content range for very high carbon steel?
• Which process is most likely to be performed without any shielding gas?
• Molybdenum in stainless steel increases which property?
• Name the four primary welding positions and a typical situation for each.
• Alloying elements present in less than 5% of the composition typically achieve which outcome?
• Which range corresponds to high carbon steel?
• Which AWS standard governs structural steel welding and what is a key requirement?
• Nickel-chromium low alloy steels are designed to increase what?
• Alloying elements added in more than 5% of the alloy yield which types of properties?
• Which statement best defines HSLA steels in terms of carbon and alloy content?
• Welder qualification tests ensure what?
• Which steel type is defined by adding small amounts of deoxidizers to molten steel to remove impurities?
• How is fillet weld size typically measured and what dictates acceptance?
• When do refining operations occur in an electric arc furnace?
• Which processes are commonly used to weld a fillet joint?
• Which shielding method is used by GMAW (MIG) welding?
• What is the second step in making coke?
• In AWS suffix, what does C indicate?
• Cobalt in steel is known as red hardness, which describes which property?
• Chromium low alloy steels with carbon content below 0.18% can be welded without cracking when pre and post heat treatment is used. Which statement reflects this?
• Which deoxidized steel type yields the softest steel with low carbon content as the cheapest and most common grade?
• Which statement best describes nickel alloy steel properties at low temperatures?
• In a blast furnace, which statement describes how iron is separated?
• Which of the following is NOT listed as a product pig iron can become?
• Which category is typically the easiest to form, machine and weld?
• What is the purpose of a fire watch in welding operations?
• What is the principal difference between steel and cast iron?
• What is the first step in making coke?
• Two main ingredients in steel and cast iron
• Manganese content in carbon steel does not exceed what percent, and what is its effect in carbon and alloy steels?
• B pressure test uses pipe from what ASME material group?
• Which category has a carbon content range of 0.75-1.50%?
• What do WPS and PQR stand for, and what is their purpose in welding?
• What is slag inclusion and how can it be prevented?
• Which practices minimize hydrogen-induced cracking in welding?
• Which welding process is most likely to produce slag as a byproduct?
• In killed steels, shrinkage occurs at the top of the ingot due to no gas formation. What action is required before rolling?
• In the basic oxygen process, which additive is used to bind impurities?
• Which pairing is typical for carbon steel welding with common methods?
• Which steel type is defined by the addition of small amounts of deoxidizers to molten steel to remove impurities?
• In the SAE-AISI system, the last two digits indicate which of the following?
• Molybdenum alloying in steel primarily increases which properties?
• Nickel steels with small nickel additions show which effect?
• In a butt weld, root penetration refers to which aspect?
• What is the recommended action when a nonconformance is found during post-weld inspection and requires repair?
• How is steel refined in a basic oxygen steel-making furnace?
• Successful welding of HSLA steels requires careful control of hydrogen, so what should be done?
• The three ingredients needed to produce steel or cast iron in a blast furnace
• In the blast furnace reduction, which gas reduces iron oxide?
• Cobalt in steel is most closely associated with which property?
• Which nondestructive testing method detects internal flaws within a weld?
• In steel, aluminum can be used up to 0.20% as a deoxidizer. What is another effect of aluminum in steel?
• Which of the following is NOT listed as a step in the cast iron and steel process?
• Malleable cast iron is produced by annealing white cast iron to transform carbon into rounded particles.
• What information does AWS filler metal classification convey and why is it important?
• Name two of the most common steel furnaces used in steelmaking.
• In malleable cast iron, what happens to carbon during the annealing process?
• For welding very high carbon steels, which weld pass is most susceptible to cracking due to carbon pickup from the parent metal?
• Which welding process uses a non-consumable tungsten electrode with an inert shielding gas?
• Which practice helps minimize distortion during multi-pass welding?
• Which practice is used to reduce cracking tendency when welding high carbon steels?
• What information is typically contained in material certifications used for welding quality?
• What is a weld undercut and what typical causes?
• On a fillet weld symbol, what does the size number represent?
• Which statement about welding medium carbon steels is true?
• What is root opening in a groove weld and how does it influence penetration?
• Sulphur and phosphorus impurities exist in steel at what percentages, and what are their low-percent properties?
• Titanium in steel acts as a deoxidizer, helps limit grain growth, and is used to stabilize austenitic stainless steels.
• What is the hazard of UV radiation from welding and how is it mitigated?
• An R or T in electrode classifications means?
• In the ASME system on steel specifications, which statement is true?
• How does higher carbon content in steel influence weldability and cracking tendency?
• The AWS specifications for electrodes have what for the alloying element?
• Which statement best describes medium carbon steel?
• What provides the heat in an electric arc furnace?
• Which type of carbon steel would be used in a spring or a file or metal cutting saw?
• Which heating method does an induction furnace use to melt metals?
• In HSLA steels, which element is the principal strengthening agent?
• Titanium's role in steel includes deoxidizing, reducing grain growth, and stabilizing austenitic stainless steels.
• Which element makes up approximately 95% or more of the composition of steel?
• To eliminate effects of nitrogen in the heat-affected zone when using HSLA steels, which element is added up to 0.025%?
• Name two non-destructive testing methods commonly used for welds and what they detect.
• Which steel type is fully deoxidized and shows no gas evolution?
• Ductile/Nodular cast iron is known for what characteristic due to its microstructure?
• What does the suffix M indicate in AWS electrode classifications?
• In SAE-AISI designation, boron in steel is indicated by which pattern?
• Which deoxidized process yields the softest steel with about 0.15% carbon?
• Which option lists essential PPE for welding that protects eyes, skin, and lungs?
• Which statement about HSLA steels' design focus is true?
• Alloy steels are defined by what characteristic?
• What is the heat-affected zone (HAZ) and why is its microstructure important to weld performance?
• What is continuous casting?
• Which statement about oxygen in an electric arc furnace process is correct?
• What is backstepping in welding sequence, and when is it typically used?
• What is the typical molybdenum content range used in alloy steel?
• What is the purpose of a root pass in multi-pass welds?
• Nickel steels with small additions of nickel (~2-5%) have which effect?
• What does the suffix indicate?
• Which filler metals are commonly used for aluminum welding with GTAW or GMAW?
• During heat treatment, what happens to iron's crystal structure?
• What is interpass temperature and why is it important in multi-pass welding?
• Which two groups establish standards on the system of electrode classifications?
• In welding quality control, what is a hold point, and what action is taken if it is reached with nonconformance?
• Alloy steels containing more than 0.20% carbon are generally considered heat-treatable. Which option correctly reflects this statement in a test-choice format?
• Killed steels are described as which of the following?
• What does a WPS/PQR document demonstrate about welding parameters?
• Which shielding gas combinations are commonly used for GMAW on carbon steel, stainless steel, and aluminum?
• What special considerations are needed when welding in cold ambient conditions?
• As carbon content increases, which properties also increase?
• When limestone acts as a flux in the furnace, what are the products that float on top of the molten iron?
• Which welding documentation is typically required for traceability and quality control?
• Iron ore
• What is the difference between Welder Performance Qualification (WPQ) and WPS/PQR, and why are both required?
• Approximately what tungsten content range produces red hardness?
• A PQR documents which of the following?
• What preheat condition is sometimes required when welding mild steels?
• Which welding processes are commonly used with lap joints?
• Which statement describes that cap steel is associated with slower cooling leading to the outer shell property?
• Which statement describes the second effect of aluminum in steel, contributing to a finer grain structure?
• In rolling, which condition defines cold rolling?
• What is the carbon content range for low carbon steel?
• Which statement about pig iron is true?
• Which statement is true about carbon content and ductility?
• How is preheat temperature established in the field and what tools are used to measure it?
• Which cast iron type is valued for its combination of strength and ductility, due to its nodular graphite?
• What is AWS D1.1 and what does it require for welder qualifications?
• Which non-destructive testing methods are common options for post-weld quality assurance?
• Preheat controls the ___________ of the weld, which in turn controls the __________ of the HAZ.
• Nickel-chromium low alloy steels are noted for which property?
• What is the carbon content range for medium carbon steels?
• Why are very high carbon steels seldom welded?
• Preheat of HSLA steels depends upon which factor?
• In structural welding standards like AWS D1.1, what is a key reason for inspections?
• In ASME material grouping, which identifier is used to categorize steels?
• In the blast furnace process, what is the role of coke?
• Which steel type has no gas formation during solidification?
• Pig iron contains approximately what percent carbon?
• To mitigate hydrogen cracking, which approach is recommended?
• In a basic oxygen steel-making furnace, what is a typical charging composition?
• Which statement about cap steel porosity relative to rimmed steel is true?
• Which statement about welding low carbon steels is true?
• Low alloy steel electrodes are grouped on the basis of what?
• Temper embrittlement is a brittle condition that develops in low alloy steels when exposed to prolonged service temperature ranges.
• Which range corresponds to very high carbon steel?
• What is post-weld heat treatment and when is it required?
• What routine maintenance should a welding power source receive to stay safe and reliable?
• Which steel type is described as having the highest quality?
• What factors contribute to distortion during welding, and what strategies help minimize it?
• Distinguish between hydrogen cracking and solidification cracking and how to mitigate each.
• Outline a basic post-weld inspection workflow from visual inspection to nondestructive testing.
• Why must base metal be clean before welding and what methods are common?
• Molybdenum steels are known for which properties?
• Limestone is a hard rock composed mostly of what?
• Which statement best describes HSLA steels overall?
• What is the carbon content range for high carbon steel?
• What are common causes of porosity in welds and how can it be prevented?
• What is the purpose of preheating before welding?
• After the iron is separated, what is the role of limestone?
• What is the primary function of a blast furnace?
• In the CSA system for steel specifications, which element indicates the yield strength and type of steel?
• Which material typically contains more carbon content and is categorized into Grey cast iron, White cast iron, Malleable cast iron, and Ductile/Nodular cast iron?
• What does rolling and forming do to metal stock?
• Boron in steels serves what primary function?
• Which welding process uses a flux-core wire that can be self-shielded or gas-shielded?
• How do amperage and voltage affect a weld bead in GMAW and SMAW?
• In a cupola furnace, which materials are added to reduce excess carbon and refine impurities?
• Which category has a carbon content range of 0.30-0.45%?
• The ASTM system designates carbon steels on the basis of which criteria?
• Which statement about sulfur in free-machining steels is true?
• When should preheating be applied and what is a common preheat range for thick carbon steels?
• Why does grey cast iron appear grey?
• Which statement correctly matches a common joint type with a typical welding process?
• How is a fillet weld symbol interpreted on a drawing in terms of size and location?
• When selecting a welding process for a given joint, what factors influence the choice?
• What is a primary reason for following a proper welding sequence in a multi-pass fabrication?
• What is the purpose of slag removal during welding?
• Capped steel is characterized by which of the following properties?
• What is a cold weld, and how might it be identified in testing?
• Which statement best describes killed steels' quality?
• Semi-killed steels are produced by adding what to molten steel to remove impurities?
• Hematite and magnetite are best described as:
• The slower cooling/solidifying rate in capped steel leads to which condition?
• ER70S-6 is an AWS filler metal classification typically used for which combination?
• Name two welding processes used for aluminum and a common challenge when welding aluminum.
• Six steps in the cast iron and steel process
• White cast iron is characterized by extreme hardness due to rapid cooling.
• What are typical welding helmet shade numbers for SMAW, GMAW, and GTAW operations?
• Silicon and copper do not exceed what percentage in steel, and what are their primary properties?
• Between hot and cold rolling, which generally gives better dimensional tolerance?
• Vanadium alloying tends to promote which effects during heat treatment?
• In CSA specifications, which category is described by Structural steel plate and shapes?
• Vanadium tends to promote hardenability and a fine grain structure during heat treatment.
• Compare FCAW and GMAW in terms of shielding and slag production.
• What safety steps are essential when storing and handling shielding gas cylinders?
• Coke is defined as:
• Ductile/Nodular cast iron provides strength and ductility due to what?
• Medium carbon steel is used where higher strength, hardness or increased wear resistance is needed.
• After refining in a basic oxygen furnace, into what shapes is steel commonly formed?
• What is the recommended approach to welding high carbon steels to minimize brittleness?
• High and very high carbon steels respond well to which process?
• What role does interpass temperature play in multi-pass welds?
• Rimmed steel typically has approximately what carbon content?
• Ductility increases or decreases as the carbon content increases?
• What is the purpose of a fillet gauge in welding inspection?
• What is the primary effect of chromium when added to steels?
• Which measurement tools are used to verify weld dimensions, and how are they used?
• Which practice helps reduce the risk of brittle fracture in high carbon steels during welding?
• Which of the following is included as one of the six steps in the cast iron and steel process?
• Mild steel falls into which carbon content range?
• What is the maximum carbon content in steel that can be absorbed in solution with iron?
• Which of the following best describes killed steels?
• Melting pig iron in a cupola or induction furnace and oxidizing it produces which product?
• Molybdenum steels are used in which application?