Process Control and Instrumentation Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature? Chromel-alumel Copper-constantan Iron-constantan Platinum-platinum + rhodium Chromel-alumel Copper-constantan Iron-constantan Platinum-platinum + rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the __________ variable. Controlled Manipulated None of these Load Controlled Manipulated None of these Load ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of mercury in glass thermometer is Volumetric expansion Pressure rise with temperature None of these Linear expansion Volumetric expansion Pressure rise with temperature None of these Linear expansion ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic? O₂ NO NO₂ CO₂ O₂ NO NO₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells used in temperature measurements should have Polished surface Low emissivity High transmissivity of radiation Very thick walls Polished surface Low emissivity High transmissivity of radiation Very thick walls ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The fluid used in hydraulic controller is Steam Oil Water Air Steam Oil Water Air ANSWER DOWNLOAD EXAMIANS APP
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