Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Options: A . &nbspChromel-alumel thermocouple B . &nbspOptical pyrometer C . &nbspRadiation pyrometer D . &nbspEither B or C

Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out o

Question

Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an

Options:

A . Chromel-alumel thermocouple

B . Optical pyrometer

C . Radiation pyrometer

D . Either B or C

Answer: Option D

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