Pure tungsten has ____ heat resistance and electron emission characteristic ____ all the tungsten electrodes.
A) the best, of
B) a similar, to
C) the same, as
D) the poorest, of
Correct Answer:
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Q15: The gas tungsten arc welding (GTAW) process
Q16: The advantages of water-cooled torches make them
Q17: GTA welding is efficient for welding metals
Q18: Helium has been mixed with _ to
Q19: The time of postflow is determined by
Q21: Four major components make up a GTA
Q22: The term TIG is short for tungsten
Q23: The speed at which current changes back
Q24: Air-cooled torches have just the shielding gas
Q25: The nozzle size, both length and _,
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