FCAW FINAL EXAM QUESTIONS AND ANSWERS LATEST

___ allows tensile tests, bend tests, and nick-break tests to be used to test the soundness of welds. - Answer-API 1104 ___ are added to the flux core to produce desired chemical and mechanical properties in the deposited weld metal, such as hardness, strength, toughness, ductility, and corrosion resistance. - Answer-Alloying elements ___ equipment should be used to keep smoke and fumes from entering a welder's helmet. - AnswerFume extraction ___ welding is performed on one side only because the root side is inaccessible. - Answer-Pipe A common gas mixture for FCAW-G is ___, which produces a spray transfer with small droplet size. - Answer-75% argon and 25% CO2 A gaseous shield created by the tubular electrode protects the weld area in the ___ welding process. - Answer-FCAW-S A typical electrode extension for self-shielded electrodes ranges from 1/4" to 1 3/4". - Answer-False A(n) ___ slag system is a slag system that promotes spray transfer with low spatter and fast-freezing slag. - Answer-acid An open root joint is an unwelded joint that uses backing or consumable inserts. - Answer-False FCAW produces less distortion than SMAW as well as smooth, uniform beads. - Answer-True FCAW uses a(n) ___;___ welding power source. - Answer-direct current; CVFCAW welding most commonly uses AC current for flat position. - Answer-False FCAW-G commonly uses carbon dioxide as a shielding gas. - Answer-True Flux cored electrodes are ___ electrodes. - Answer-tubular For FCAW, welding current is adjusted by increasing or decreasing the wire feed speed at the wire feeder. - Answer-True Gas flow rates can range from 30cfh to 45 cfh. - Answer-True In the ___ process, shielding gas is provided exclusively by the flux core within the electrode. - AnswerFCAW-S Qualification in the vertical and overhead positions qualifies the welder for all positions. - Answer-True Qualification on a product-specific groove weld test qualifies a welder for fillet welds in the same position. - Answer-True Qualification on metal ___" or thicker qualifies the welder for unlimited thicknesses. - Answer-1 Qualification under one fabrication code or standard does not necessarily qualify a welder to weld under another, though the tests appear to be identical. - Answer-True