Question

Which of the following statements is not correct for thermo-couple measuring instruments?
1. They are very useful as transfer instruments
2. They are incapable of taking any overload
3. Power losses are very low
4. Their calibration does not change with time or temperature

Answer 1

Correct Answer - Option 3 : Power losses are very low
The instrument which uses the thermocouple for the measurement of the temperature, current, and voltage type of instrument is known as the thermocouple instrument. It is used for both the AC and DC measurement. The thermocouple is an electric device that uses two wires of different metals.