Process Control and Instrumentation Which of the following controllers has maximum offset? P-I controller P-controller P-D controller P-I-D controller P-I controller P-controller P-D controller P-I-D controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Object is transparent Object and surrounding are at almost the same temperature Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object and surrounding are at almost the same temperature Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Response of a linear control system for a change in set point is called Frequency response Servo problem Regulator problem Transient response Frequency response Servo problem Regulator problem Transient response ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the Same as dead time Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Time required by the measured variable to reach 63.2% of its ultimate change Same as dead time Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Time required by the measured variable to reach 63.2% of its ultimate change ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Measurement of sub-zero Celcius temperature in industry is done most commonly by Resistance thermometers Bi-metallic thermometers Thermocouples Gas thermometers Resistance thermometers Bi-metallic thermometers Thermocouples Gas thermometers ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Approaches 180° asymptotically Is 30° Is 90° at the most Is 120° Approaches 180° asymptotically Is 30° Is 90° at the most Is 120° ANSWER DOWNLOAD EXAMIANS APP
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