Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents A first order system A first order time lag A second order system Dead time system A first order system A first order time lag A second order system Dead time system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nichol's chart deals with Frequency response values of controllers Closed loop values vs. open loop values R. vs. phase lag of first order R. vs. phase lag of second order Frequency response values of controllers Closed loop values vs. open loop values R. vs. phase lag of first order R. vs. phase lag of second order ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The characteristic equation for the control system with a closed loop transfer function G₁/1 + G₂ is given by 1 + G₂ = 0. The characteristic equation for the control system Depends only upon the open loop transfer function All of these Determines its stability Is the same for set point or load changes Depends only upon the open loop transfer function All of these Determines its stability Is the same for set point or load changes ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following measurements can be made by the measurement of emf? All of these Composition of complex ions Degree of hydrolysis PH value All of these Composition of complex ions Degree of hydrolysis PH value ANSWER DOWNLOAD EXAMIANS APP
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 -180° -45° -90° 45° -180° -45° -90° 45° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Cascade control means Feed forward control More than one feed-back loop One feed-back loop On-off control Feed forward control More than one feed-back loop One feed-back loop On-off control ANSWER DOWNLOAD EXAMIANS APP
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