Process Control and Instrumentation Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an Liquid semi-conductor Conductor Insulator Solid semi-conductor Liquid semi-conductor Conductor Insulator Solid semi-conductor ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is Either A, B or C Chromel-alumel Platinum-platinum+rhodium Iron-constantan Either A, B or C Chromel-alumel Platinum-platinum+rhodium Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples is capable of measuring a temperature of -50°C? Platinum - platinum + rhodium Chromel - alumel Copper - constantan Iron-constantan Platinum - platinum + rhodium Chromel - alumel Copper - constantan Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is Iron-constantan None of these Platinum-platinum+rhodium Chromel-alumel Iron-constantan None of these Platinum-platinum+rhodium Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Smoke density of the flue gas going out of the chimney is measured by a Thermal conductivity meter Photo electric cell Chromatograph Polarograph Thermal conductivity meter Photo electric cell Chromatograph Polarograph 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? Peltier effect Seebeck effect Joule heating effect Thomson effect Peltier effect Seebeck effect Joule heating effect Thomson effect ANSWER DOWNLOAD EXAMIANS APP
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