Which thermocouple can be used to measure a temperature of around 1400°C ?
Correct answer: C. Platinum-platinum + rhodium
- A. Copper-constantan
- B. Aluminium-Chromel
- C. Platinum-platinum + rhodium
- D. None of these
Explanation
A platinum-platinum/rhodium thermocouple, such as Type R or Type S, can measure temperatures around 1400°C. Copper-constantan and chromel-based lower-temperature thermocouples are unsuitable at this temperature.
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