Temperature of molten pig iron (1450°C) and molten slag (1500°C) fl – McqOptions

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1.	Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an
A.	Chromel-alumel thermocouple
B.	Optical pyrometer
C.	Radiation pyrometer
D.	Either B or C
Answer» E.

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