question_answer

For a given thermocouple neutral temperature:

A)  is a constant

B)  depends on cold junction temperature

C)  depends on inversion temperature

D)  double that of cold junction temperature

Correct Answer: A

Solution :

                 Neutral temperature is defined as temperature of a hot junction of a thermocouple at which the electromotive force of the thermocouple attains its maximum value when cold junction is maintained at a constant temperature of\[0{}^\circ C\]. Hence, for a given thermocouple neutral temperature is a constant.