Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C? Options: A . &nbspOptical pyrometer B . &nbspRadiation pyrometer C . &nbspPhotoelectric pyrometer D . &nbspThermocouples

Which of the following is not suitable for measuring the temperature of a red ho

Question

Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?

Options:

A . Optical pyrometer

B . Radiation pyrometer

C . Photoelectric pyrometer

D . Thermocouples

Answer: Option D

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