Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature Options: A . &nbspEmf produced is very low of the order of microvolt B . &nbspEmbrittlement of iron occurs C . &nbspRusting of iron takes place D . &nbspBoth B and C

Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It

Question

Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature

Options:

A . Emf produced is very low of the order of microvolt

B . Embrittlement of iron occurs

C . Rusting of iron takes place

D . Both B and C

Answer: Option D

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