Process Control and Instrumentation Photoelectric pyrometers are suitable in the temperature range of __________ °C. 800-1600 400-1000 800-2500 400-1600 800-1600 400-1000 800-2500 400-1600 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. Stable None of these Critically damped Unstable Stable None of these Critically damped Unstable ANSWER DOWNLOAD EXAMIANS APP
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 Chromel-alumel Platinum-rhodium Platinum-platinum+rhyodium Iron-constantan Chromel-alumel Platinum-rhodium Platinum-platinum+rhyodium Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Object is transparent 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 Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object and surrounding are at almost the same temperature 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? Thomson effect Peltier effect Seebeck effect Joule heating effect Thomson effect Peltier effect Seebeck effect Joule heating effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouple materials does not contain nickel? Alumel Constantan None of these Chromel Alumel Constantan None of these Chromel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS