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Author Question: Of the various types of tungsten electrodes available, the tungsten electrodes that are used for AC ... (Read 40 times)

bobthebuilder

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on: Jul 24, 2018
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

Question 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


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nanny

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Reply #1 on: Jul 24, 2018
Answer to Question 1

b

Answer to Question 2

c


bobthebuilder

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Reply #2 on: Jul 24, 2018
Thank you!


nanny

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Reply #3 on: Jul 24, 2018
Always glad to help...


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