It is required to measure temperature in the range of 1300°C to 1500°C. The most suitable thermocouple to be used as transducer would be
- A. Chromel - constantan
- B. Iron-constantan
- C. Chromel - alumel
- D. Platinum-rhodium
Answer: D. Platinum-rhodium
Explanation: Platinum-rhodium thermocouples (type R/S/B) are used for 1300–1500 °C.