Process Control and Instrumentation Which of the following thermocouples is capable of measuring a temperature of -50°C? Iron-constantan Copper - constantan Platinum - platinum + rhodium Chromel - alumel Iron-constantan Copper - constantan Platinum - platinum + rhodium Chromel - alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh test Criterion is not applicable to systems with polynomial characteristic equation Can not determine as to how many roots of the characteristics equation have positive real roots Criterion provides information about the actual location of roots Cannot be used to test the stability of a control system containing transportation lag Criterion is not applicable to systems with polynomial characteristic equation Can not determine as to how many roots of the characteristics equation have positive real roots Criterion provides information about the actual location of roots Cannot be used to test the stability of a control system containing transportation lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Degree to which an instrument indicates the changes in measured variable without dynamic error is called its Reproducibility Static characteristics Speed of response Fidielity Reproducibility Static characteristics Speed of response Fidielity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a 'contact' pyrometer? Resistance pyrometer Infra red pyrometer Radiation pyrometer Optical pyrometer Resistance pyrometer Infra red pyrometer Radiation pyrometer Optical pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is 45° 180° 90° 0° 45° 180° 90° 0° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal conductivity cell is the primary element of a/an __________ analyser. Carbon dioxide Carbon monoxide Oxygen Sulphur dioxide Carbon dioxide Carbon monoxide Oxygen Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
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