Process Control and Instrumentation A constant volume gas thermometer employing __________ is used to measure sub-zero (i.e., < 0° C) temperature. Helium None of these Nitrogen Hydrogen Helium None of these Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature? Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum + rhodium Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum + rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh test Criterion provides information about the actual location of roots Cannot be used to test the stability of a control system containing transportation lag Can not determine as to how many roots of the characteristics equation have positive real roots Criterion is not applicable to systems with polynomial characteristic equation Criterion provides information about the actual location of roots Cannot be used to test the stability of a control system containing transportation lag Can not determine as to how many roots of the characteristics equation have positive real roots Criterion is not applicable to systems with polynomial characteristic equation ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the dynamic error in a critically damped second order instrument for a ramp input (AT)? √AT 1.5 AT 2 AT 0.5 AT √AT 1.5 AT 2 AT 0.5 AT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Radiation pyrometers as compared to thermocouples Can't measure the temperature of moving objects Has a slower speed of response Is more affected by corrosive atmosphere Can measure higher temperature Can't measure the temperature of moving objects Has a slower speed of response Is more affected by corrosive atmosphere Can measure higher temperature ANSWER DOWNLOAD EXAMIANS APP
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