Tungsten electrodes that contain elements such as lanthanum or yttrium are referred to as _____.
A) alternating current only electrodes
B) low-alloy tungsten electrodes
C) low-hydrogen tungstens
D) rare earth tungstens
Correct Answer:
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Q12: The improved electron emission of the _
Q13: _ electrodes have a current-carrying capacity similar
Q14: AC concentrates about _ of its welding
Q15: Which of the following is true of
Q16: Tungsten with the highest level of lanthanum
Q18: Which of the following is an inert
Q19: _ results in welds with deep penetration,
Q20: In GTAW, the arc temperature is around
Q21: The squarewave provides the welder with a
Q22: Flowmeters measure the flow rate of a
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