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123kduncan 123kduncan
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6 years ago
Of the various types of tungsten electrodes available, the tungsten electrodes that are used for AC welding
  are _____.
 
  a. lanthanated
  b. pure
  c. irradiated
  d. thoriated


[Ques. 2] Setting the amperage at 200 amps for a welding machine that is rated 300 amps at 60-percent duty cycle will
  _____.
 
  a. reduce the shielding gas flow rate by 30 percent
  b. cause excessive nozzle vibration
  c. increase the duty cycle to 100 percent
  d. allow welding current to be pulsed


[Ques. 3] When welding open-root V-groove welds in the horizontal position, do not _____.
 
  a. feather tack welds with a grinder
  b. use weave beads
  c. chip and clean each pass
  d. use stringer beads


[Ques. 4] If you see the label TIG on a welding machine, that machine is considered to be what kind of a welding
  machine?
 
  a. Stick
  b. FCAW
  c. GMAW
  d. GTAW


[Ques. 5] When the plates are vertical but the axis of the weld is horizontal, the code for this position of groove weld is
  _____.
 
  a. 1G
  b. 2G
  c. 3G
  d. 4G
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princess34princess34
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