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ELECTRIC CIRCUITS

Electric Circuits
Which of following is invariably seen in an electroplating plant?

  Barrel.
  Rectifier.
  Carbon brushes.
  Distilled water.

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Electric Circuits
Electrics supply for electroplating should be

 low AC voltage.
 any of above.
 low frequency ac voltage.
 DC voltage.

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Electric Circuits
Which law(s) find application in electrolysis?

 Coulombs law.
 Gausss law.
 Faradays law.
 Ohms law.

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Electric Circuits
Silver coating is provided for

  decorative purpose.
  protective purpose.
  all of above.
  bearing surfaces.

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Electric Circuits
Current efficiency in electroplating is usually

  99 %.
  90 to 98 %.
  70 to 80 %.
  50 to 60 %.

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