Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is Iron-constantan Chromel-alumel Platinum-platinum+rhyodium Platinum-rhodium Iron-constantan Chromel-alumel Platinum-platinum+rhyodium Platinum-rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Hot wire anemometer is used for the measurement of Flow rates of granular solids Flow rates of fluids Thermal conductivity of gases Very high temperature Flow rates of granular solids Flow rates of fluids Thermal conductivity of gases Very high temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Degree to which an instrument indicates the changes in measured variable without dynamic error is called its Speed of response Static characteristics Fidielity Reproducibility Speed of response Static characteristics Fidielity Reproducibility ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the dynamic error in a critically damped second order instrument for a ramp input (AT)? 0.5 AT √AT 2 AT 1.5 AT 0.5 AT √AT 2 AT 1.5 AT 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 Object and surrounding are at almost the same temperature Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object has varying emissivity Object and surrounding are at almost the same temperature Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent ANSWER DOWNLOAD EXAMIANS APP
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