FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VE, Exams of Nursing

Download FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VE and more Exams Nursing in PDF only on Docsity! FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ GMAW soon became the process of choice for high-production welding because it used continuous solid-wire electrodes. - CORRECT ANSWERS True. An autogenous weld is a fusion weld made with filler metal. - CORRECT ANSWERS False. Welding can be used to repair farm, mining, and construction equipment. - CORRECT ANSWERS True. Oxyfuel gas welding processes use heat from the combustion of a mixture of oxygen and a fuel gas for welding. - CORRECT ANSWERS True. The gas metal arc welding process does not require a shielding gas. - CORRECT ANSWERS False. ______ welding is the most commonly used oxyfuel gas welding process. - CORRECT ANSWERS Oxyacetylene Transferred arc ______ is used for welding high-strength, thin metal. - CORRECT ANSWERS PAW FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ ______ arc welding is commonly used to weld carbon, low-alloy and stainless steels, and cast iron. - CORRECT ANSWERS Flux cored The ______ welding process is used primarily for high-production welding. - CORRECT ANSWERS gas metal arc Forge welding was first used in ______. - CORRECT ANSWERS 2000 BC The gas metal arc welding process ______. - CORRECT ANSWERS uses a continuous wire electrode The ______ welding process does not use shielding gas to protect the weld area. - CORRECT ANSWERS submerged arc ______ refers to the way the molten filler metal crosses the arc to become part of the weld. - CORRECT ANSWERS Metal transfer ______ arc welding does not require external shielding gas, which makes it more portable than other welding processes. - CORRECT ANSWERS Shielded metal FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ ______ produces flame temperatures in the range of 5800 degrees Fahrenheit to 6300 degrees Fahrenheit when mixed with oxygen. - CORRECT ANSWERS Acetylene The four basic welding positions are flat, horizontal, vertical, and overhead. - CORRECT ANSWERS True. Weld joint design is influenced by the cost of preparing the joint. - CORRECT ANSWERS True. Joint penetration includes the weld reinforcement measurement. - CORRECT ANSWERS False. A fillet is one of the five basic weld joints. - CORRECT ANSWERS False. A square groove butt joint requires little or no edge preparation. - CORRECT ANSWERS True. A ______ weld is a weld made in a circular hole in one member to fuse it to the other member. - CORRECT ANSWERS plug FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ The ______ is the area where filler metal intersects the base metal and extends the furthest into the weld joint. - CORRECT ANSWERS weld root The oxygen cylinder valve is opened with a wrench. - CORRECT ANSWERS False. The operating pressure for acetylene should never exceed 15 psi. - CORRECT ANSWERS True. Acetylene has no detectable odor. - CORRECT ANSWERS False. A cylinder cart should be used to move gas cylinders. - CORRECT ANSWERS False. Two types of oxyacetylene welding torches are the injector and the medium-pressure. - CORRECT ANSWERS True. Welding tip size is governed by the diameter of its opening. - CORRECT ANSWERS True. FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ Left-hand threads are on all fittings for acetylene gas. - CORRECT ANSWERS True. Oxygen cylinders are packed with porous material to store oxygen safely. - CORRECT ANSWERS False. Cylinders should be kept in a vertical position. - CORRECT ANSWERS True. Acetylene gas ______. - CORRECT ANSWERS has a very distinctive, nauseating odor. A ______ is caused by the flame going out suddenly on the torch. - CORRECT ANSWERS backfire The skills required for ______ are often compared with those developed by practicing oxyacetylene welding. - CORRECT ANSWERS GTAW Applying soapy water to an oxyacetylene outfit with a brush can be used to locate leaks. - CORRECT ANSWERS True. FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ A hole in the weld joint can result from holding the flame in one location for too long. - CORRECT ANSWERS True. Filler metal will stick to base metal that is too hot. - CORRECT ANSWERS False. When welding a T-joint in flat position, the torch should be held at a ______ degree angle to the workpiece. - CORRECT ANSWERS 45 A ______ requires a greater amount of filler metal than other joints. - CORRECT ANSWERS T-joint The correct diameter filler metal is approximately ______ the thickness of the base metal. - CORRECT ANSWERS equal to Carrying a weld pool without filler metal requires that the inner core of the flame be held approximately ______" from the workpiece. - CORRECT ANSWERS 1/8 FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ ______ is very flimsy and weak when hot. - CORRECT ANSWERS Aluminum When backhand welding, the torch angle is approximately ______ degrees above the plate. - CORRECT ANSWERS 60 The ______ of the base metal determines the diameter of the filler metal used. - CORRECT ANSWERS thickness Hot start provides an extra boost of current to help establish an arc when using electrodes that are hard to start. - CORRECT ANSWERS True. A constant-current welding machine is used for shielded metal arc welding. - CORRECT ANSWERS True. The heat generated when using shielded metal arc welding ranges from 6600 degrees Fahrenheit to 10,000 degrees Fahrenheit. - CORRECT ANSWERS True. Current is the amount of electron flow through an electrical circuit. - CORRECT ANSWERS True. FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ The actual voltage used to provide the welding current ranges from 220 V to 440 V. - CORRECT ANSWERS False. SMAW cannot weld carbon steel, low- or high-alloy steel, stainless steel, cast iron, or ductile iron. - CORRECT ANSWERS False. In North America, alternating current is rated at 50 Hz. - CORRECT ANSWERS False. Resistance is the force that causes current to move in a circuit. - CORRECT ANSWERS False. A (n) ______ is the basic unit of measurement of resistance. - CORRECT ANSWERS ohm After the arc is struck, the voltage drops to ______. - CORRECT ANSWERS arc voltage When welding with DCEP, electrons flow from the ______ to the ______. - CORRECT ANSWERS workpiece; electrode FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ The jaws of an electrode holder should always be kept clean to ensure good electrical contact. - CORRECT ANSWERS True. Factors such as size and type of electrode, current, and welding position all affect the travel speed. - CORRECT ANSWERS True. The recommended current range for a specific electrode is approximate and must be adjusted as necessary to achieve a satisfactory weld. - CORRECT ANSWERS True. The bare end of the electrode is gripped in the electrode holder to ensure good electrical contact. - CORRECT ANSWERS True. Welding with an arc length that is too short will produce excessive penetration and melt-through in the base metal. - CORRECT ANSWERS False. ______ is the distance between the electrode core wire and the weld pool. - CORRECT ANSWERS Arc length The rate at which the electrode is moved along the weld joint is the ______. - CORRECT ANSWERS travel speed FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ Maintaining the proper ______ is essential to sustaining a strong, stable arc. - CORRECT ANSWERS arc length The final adjustment of ______ is made after beginning the welding operation. - CORRECT ANSWERS current The arc length required is determined by the size of the electrode and the welding task. - CORRECT ANSWERS True. A narrow weld bead with pointed ripples results if the travel speed is too slow. - CORRECT ANSWERS False. Whipping the electrode allows better heat control in the weld pool when using an E6010 or E6011 electrode. - CORRECT ANSWERS True. Welding with too high a current results in overlapping. - CORRECT ANSWERS False. Undercutting is the result of welding with excessive current, traveling too fast, or using an improper work angle. - CORRECT ANSWERS True. FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ Arc length should be approximately ______. - CORRECT ANSWERS the diameter of the electrode core wire A ______ travel angle is a travel angle where the electrode points away from the direction of travel. - CORRECT ANSWERS drag The penetration of a deposited bead should equal ______ the total thickness of the weld bead. - CORRECT ANSWERS one-third to one-half The ______ angle is in the line of the welding and may vary from 5 degrees to 30 degrees. - CORRECT ANSWERS travel ______ may occur when there is insufficient deposition of metal on a vertical plate. - CORRECT ANSWERS Undercutting Undercutting can be corrected by ______. - CORRECT ANSWERS changing the electrode angle Filler metals for GTAW use the same classification system as filler metals used for GMAW. - CORRECT ANSWERS True. FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ Downhill welding is preferred for welding with GTAW in the vertical position. - CORRECT ANSWERS False. On thin-gauge metals sensitive to atmospheric contamination, a backing bar is used to protect the root side of the weld. - CORRECT ANSWERS True. Electrode stickout is 1/8" to 3/16" for welding ______ joints. - CORRECT ANSWERS butt In the ______ process of application, the weld operation is done by hand. - CORRECT ANSWERS manual A ______ degree work angle is required to deposit a fillet weld in a T- joint. - CORRECT ANSWERS 45 Filler metal should be held at a ______ degree to ______ degree angle above the surface of the work when welding a butt joint. - CORRECT ANSWERS 15; 20 FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ Filler metals for welding stainless steels are alloyed to prevent cracking problems. - CORRECT ANSWERS True. The electrode positive part of the AC cycle produces a cleaning action that removes the oxide coating on aluminum. - CORRECT ANSWERS True. When welding, the fumes from copper and copper alloys can be toxic. - CORRECT ANSWERS True. High-carbon steels are weldable but require preheat and postheating. - CORRECT ANSWERS True. Filler metal for GTAW is the same as the filler metal used for SMAW. - CORRECT ANSWERS False. When welding aluminum with GTAW, the best results are obtained by using ______ shielding gas. - CORRECT ANSWERS 100% argon Wrought aluminum alloys in the ______ series are readily weldable. - CORRECT ANSWERS 3000 FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ When welding thin-gauge aluminum, ______ should be used to minimize distortion. - CORRECT ANSWERS copper backing bars A nonferrous metal is a metal that does not contain ______. - CORRECT ANSWERS iron A pull type wire feeder is used for welding with soft and small-diameter electrodes. - CORRECT ANSWERS True. In a constant-voltage welding machine, arc length remains constant with changes in electrode extension. - CORRECT ANSWERS True. A constant-voltage welding machine is commonly used for GMAW. - CORRECT ANSWERS True. Alternating current is used for welding in overhead position on mild steel. - CORRECT ANSWERS False. The constant-voltage welding machine has a slightly sloping volt- ampere curve. - CORRECT ANSWERS True. FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ A drag angle is a travel angle where the electrode wire points away from the direction of travel. - CORRECT ANSWERS True. Surface porosity in a weld is caused by insufficient current. - CORRECT ANSWERS False. Starting an arc becomes increasingly difficult as electrode extension increases. - CORRECT ANSWERS True. Greater penetration is obtained using the ______ technique. - CORRECT ANSWERS pulling ______ transfer is the transfer of molten metal in large droplets from the welding wire across an arc to the workpiece. - CORRECT ANSWERS Globular The type of metal transfer that occurs at lower current and voltage levels with smaller diameter welding wires is ______ transfer. - CORRECT ANSWERS short circuiting FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ In order for spray transfer to occur, CO2 levels cannot exceed ______ %. - CORRECT ANSWERS 18 Steel from 1/4" to 1/2" thick may be butt welded with no edge preparation. - CORRECT ANSWERS False. The backhand technique is generally used for welding stainless steel. - CORRECT ANSWERS False. Using short circuiting transfer on aluminum produces a colder arc than is produced with spray transfer. - CORRECT ANSWERS True. When using GMAW on aluminum, a lower current than that used for other metals is required. - CORRECT ANSWERS True. For short circuiting transfer on carbon steels and low-alloy steels, the preferred shielding gas is ______. - CORRECT ANSWERS a mixture of 75% argon and 25% CO2. A 50 degree to ______ degree groove angle is required on carbon steel up to 1" thick. - CORRECT ANSWERS 60 FINAL EXAM STUDY GUIDE FOR WELDING CLASS WITH 200QUESTIONS AND ANSWERS ALL ANSWERS 100% VERIFIED LATEST UPDATE 2023/2024 GRADED A+ For carbon steel welded without edge preparation, a ______" root opening is recommended. - CORRECT ANSWERS 1/16 ______ is the shielding gas most commonly used for aluminum up to 1" thick. - CORRECT ANSWERS Argon Tubular electrodes are used for FCAW. - CORRECT ANSWERS True. A typical electrode extension for self-shielded electrodes ranges from 1/4" to 1 3/4". - CORRECT ANSWERS False. FCAW-G commonly uses carbon dioxide as a shielding gas. - CORRECT ANSWERS True. Some flux cored electrodes can be used without the addition of a shielding gas. - CORRECT ANSWERS True. Unlike GMAW, FCAW uses a ______ with flux in its core. - CORRECT ANSWERS tubular electrode