Process Control and Instrumentation A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if Integral control action is introduced Kc is reduced Kc is increased Derivative control action is introduced Integral control action is introduced Kc is reduced Kc is increased Derivative control action is introduced ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 30° Approaches 180° asymptotically Is 90° at the most Is 120° Is 30° Approaches 180° asymptotically Is 90° at the most Is 120° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity? CO₂ O₂ N₂ CO CO₂ O₂ N₂ CO ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Characteristic equation is the denominator of __________ loop transfer function. Both A & B Here Closed Open Neither A Nor B Here Both A & B Here Closed Open Neither A Nor B Here ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermocouple is suitable for measuring Very low temperatures only Liquid temperatures only Very high temperatures only Both high and low temperatures Very low temperatures only Liquid temperatures only Very high temperatures only Both high and low temperatures ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ is undesirable in thermocouples used in industries, Linear relation of emf to temperature Non-linear relation of emf to temperature Corrosion resistance Oxidation resistance Linear relation of emf to temperature Non-linear relation of emf to temperature Corrosion resistance Oxidation resistance ANSWER DOWNLOAD EXAMIANS APP
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