Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -45° 45° -90° -180° -45° 45° -90° -180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The response of two tanks of same size and resistance in series is Critically damped None of these Over damped Under damped Critically damped None of these Over damped Under damped ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For measuring the temperature of a red hot furnace, which is the most suitable instrument? Platinum resistance thermometer Thermocouple Bimetallic thermometer Optical pyrometer Platinum resistance thermometer Thermocouple Bimetallic thermometer Optical pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is an undesirable dynamic characteristic of an instrument? Dead zone Reproducibility Time lag Static error Dead zone Reproducibility Time lag Static error ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation pH meter has One cell Three cells Two cells No cell One cell Three cells Two cells No cell ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A typical example of a physical system with under damped characteristic is a Spring loaded diaphragm valve CSTR with first order reaction U-tube manometer Thermocouple kept immersed in a liquid filled thermowell Spring loaded diaphragm valve CSTR with first order reaction U-tube manometer Thermocouple kept immersed in a liquid filled thermowell ANSWER DOWNLOAD EXAMIANS APP
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