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Electric resistance welding: Quiz

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Question 1: Electric resistance welding (ERW) refers to a group of ________ processes such as spot and seam welding that produce coalescence of faying surfaces where heat to form the weld is generated by the resistance of the welding current through the workpieces.
Gas metal arc weldingWeldingArc weldingGas tungsten arc welding

Question 2: Seam welding is the act of ________ two similar metals together at a seam, usually on a piece of automated equipment.
WeldingGas metal arc weldingArc weldingGas tungsten arc welding

Question 3: The advantages of the method include efficient energy use, limited workpiece deformation, high production rates, easy ________, and no required filler materials.
Artificial intelligenceProcess controlDistributed control systemAutomation

Question 4: Two ________ electrodes are simultaneously used to clamp the metal sheets together and to pass current through the sheets.
GoldCopperPalladiumSilver

Question 5: Other ERW methods include flash welding, resistance ________, and upset welding.
Spot weldingArc weldingElectric resistance weldingGas metal arc welding

Question 6: A specialized process, called shot welding, can be used to spot weld ________.
Stainless steelSilverCopperGold

Question 7: When high strength in shear is needed, spot welding is used in preference to more costly mechanical fastening, such as ________.
SteelScrewRivetReamer

Question 8: It is used extensively in the ________— cars can have several thousand spot welds.
Automotive industryFord Motor CompanyTop 20 motor vehicle producing companiesAutomobile industry in China







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