7230Chemical EngineeringMedium
Temperature of ________ cannot be measured by an optical or radiation pyrometer?
ACombustion space in boilers
BHot blast (air) from stoves
CRotary limestone calcination kiln
DMolten slag flowing out of blast furnace
Correct answer
B. Hot blast (air) from stoves
Explanation
The correct answer is Hot blast (air) from stoves.