_________________ is not used as a material of construction in thermocouples ?
Correct answer: B. Duralumin
- A. Alumel
- B. Duralumin
- C. Constantan
- D. Rhodium
Explanation
Alumel, rhodium and constantan are used in thermocouple alloys or elements. Duralumin is an aluminium-copper structural alloy, not a standard thermocouple material.
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