Process Control and Instrumentation The time constant of a first order process with resistance R and capacitance C is R - C 1/RC R + C RC R - C 1/RC R + C RC ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf generated in a thermocouple depends on the temperature Of hot junction only Of cold junction only Difference between cold junction and atmospheric temperature Difference between hot and cold junctions Of hot junction only Of cold junction only Difference between cold junction and atmospheric temperature Difference between hot and cold junctions ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit? Seebeck effect Joule heating effect Thomson effect Peltier effect Seebeck effect Joule heating effect Thomson effect Peltier effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Starting temperature of optical radiation pyrometer is __________ °C. 1500 800 1200 400 1500 800 1200 400 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
Process Control and Instrumentation Positioning controllers are used for Flow rate changes Temperature changes Low loads High loads Flow rate changes Temperature changes Low loads High loads ANSWER DOWNLOAD EXAMIANS APP
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