Process Control and Instrumentation Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature? Iron-constantan Platinum-platinum + rhodium Chromel-alumel Copper-constantan Iron-constantan Platinum-platinum + rhodium Chromel-alumel Copper-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf generated in a thermocouple depends on the temperature Of cold junction only Of hot junction only Difference between hot and cold junctions Difference between cold junction and atmospheric temperature Of cold junction only Of hot junction only Difference between hot and cold junctions Difference between cold junction and atmospheric temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of a __________ is 1. Second order system Transportation lag None of these First order system Second order system Transportation lag None of these First order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Presence of a small amount of water in the organic systems can be determined by the __________ method. Electrical conductivity Dielectric constant end loss factor Polarimetry Emission spectroscopy Electrical conductivity Dielectric constant end loss factor Polarimetry Emission spectroscopy ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? High drift High fidelity Poor reproducibility High measuring lag High drift High fidelity Poor reproducibility High measuring lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The __________ of a vapor pressure thermometer is a functioning element. None of these Bourdon tube Pointer Bulb None of these Bourdon tube Pointer Bulb ANSWER DOWNLOAD EXAMIANS APP