Q.The commonly used material for thermocouples is

  • APlatinum-rhodium
  • BChromel-alumel
  • CChromel-copper
  • DAny of the above 
Correct Answer : (D)

Any of the above 

Hints :

The commonly used material for thermocouples are Platinum-rhodium, Chromel-alumel and Chromel-copper.

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