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Exam (elaborations)

GMAW KEY EXAM QUESTIONS AND CORRECT ANSWERS

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GMAW KEY EXAM QUESTIONS AND CORRECT ANSWERS What does gmaw stand for? - CORRECT ANSWERS Gas metal arc welding GMAW is generally done with what polarity? - CORRECT ANSWERS electrode positive (DC+) Direct current What type of power source is generally used for gmaw welding? - CORRECT ANSWERS Constant voltage What does "E" stand for in ER70S-6? - CORRECT ANSWERS What does "70" stand for in ER70S-3? - CORRECT ANSWERS Spray Electrode Tensile strength What mode of metal transfer allows for only flat/horizontal position gmaw welding? - CORRECT ANSWERS During short cicuit transfer, what does increasing the inductance do? - CORRECT ANSWERS Slows down the rate of the current rise when the short is produced During spray transfer, what does increasing the inductance do? - CORRECT ANSWERS Nothing What gas mixture is generally associated with spray transfer on steel? - CORRECT ANSWERS 80%AR/20%CO2

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GMAW KEY EXAM QUESTIONS AND CORRECT
ANSWERS
What does gmaw stand for? - CORRECT ANSWERS Gas metal arc welding



GMAW is generally done with what polarity? - CORRECT ANSWERS Direct current
electrode positive (DC+)



What type of power source is generally used for gmaw welding? - CORRECT
ANSWERS Constant voltage



What does "E" stand for in ER70S-6? - CORRECT ANSWERS Electrode



What does "70" stand for in ER70S-3? - CORRECT ANSWERS Tensile strength



What mode of metal transfer allows for only flat/horizontal position gmaw welding? - CORRECT
ANSWERS Spray



During short cicuit transfer, what does increasing the inductance do? - CORRECT
ANSWERS Slows down the rate of the current rise when the short is produced



During spray transfer, what does increasing the inductance do? - CORRECT
ANSWERS Nothing



What gas mixture is generally associated with spray transfer on steel? - CORRECT
ANSWERS 80%AR/20%CO2
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