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° -90° -45° -180° 45° -90° -45° -180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is H(1 + G) G/(1 + H) H/G G/H H(1 + G) G/(1 + H) H/G G/H ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C. 0.1 0.001 0.0001 0.01 0.1 0.001 0.0001 0.01 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a pure dead time system with dead time τd is 1/(τds + 1) Τds + 1 E-τds Eτds 1/(τds + 1) Τds + 1 E-τds Eτds ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Bode stability method uses __________ loop transfer function. Closed Either A Or B Here Open Neither A nor B Here Closed Either A Or B Here Open Neither A nor B Here ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C. -80.9 -11.9 -38.9 -60.9 -80.9 -11.9 -38.9 -60.9 ANSWER DOWNLOAD EXAMIANS APP
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