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ELECTRIC CIRCUITS

Electric Circuits
Aluminium is produced from bauxite by

  froth flotation.
  oxidation.
  rotating.
  electrolytic process.

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Electric Circuits
Galvanizing is the coating of

 lead.
 chromium.
 zinc.
 brass.

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Electric Circuits
Coating generally recommended for hard surfacing is

 lead plating.
 copper plating.
None of these
 chromium plating.

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Electric Circuits
Highest current density is usually recommended for

  chromium plating.
  cadmium plating.
  bronze plating.
  tin plating.

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Electric Circuits
Electro-chemical equivalent is usually expressed in

  mg per kW.
  mg per kVA.
  mg per volt.
  mg per coulomb.

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