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What is the colour code of pure tungsten tips?

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What is the colour code of pure tungsten tips?
1. Yellow
2. Green
3. Red
4. Brown
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Correct Answer - Option 2 : Green

Explanation:

  • Each electrode is color coded to eliminate confusion over its type. 
  • The color appears at the tip of the electrode.
  • The color codes used are as follows.

Electrode material

Color code

Pure tungsten

Green

Thoriated

Red

Ceriated

Orange

Lanthanated

Gold

Zirconiated

Brown

Rare earth

Grey
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