Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the
A. Enhancement or attentuation of redia-tion occurs in the sighting path
B. Object and surrounding are at almost the same temperature
C. Object has varying emissivity
D. Object is transparent
Answer: Option B
This Question Belongs to Chemical Engineering >> Process Control And Instrumentation
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Phase lag of the frequency response of a second order system to a sinusoidal forcing function
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