Process Control and Instrumentation
The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple.

None of these
Iron-constantan
Platinum-platinum/rhodium
Chromel-alumel

ANSWER DOWNLOAD EXAMIANS APP

Process Control and Instrumentation
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the

Object has varying emissivity
Enhancement or attentuation of redia-tion occurs in the sighting path
Object and surrounding are at almost the same temperature
Object is transparent

ANSWER DOWNLOAD EXAMIANS APP