Process Control and Instrumentation Nichol's chart deals with Frequency response values of controllers R. vs. phase lag of second order R. vs. phase lag of first order Closed loop values vs. open loop values Frequency response values of controllers R. vs. phase lag of second order R. vs. phase lag of first order Closed loop values vs. open loop values 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 Determines its stability Is the same for set point or load changes All of these Depends only upon the open loop transfer function Determines its stability Is the same for set point or load changes All of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion. None of these Routh stability Bode stability Nyquist None of these Routh stability Bode stability Nyquist ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf generated in a thermocouple depends on the temperature Of hot junction only Of cold junction only Difference between cold junction and atmospheric temperature Difference between hot and cold junctions Of hot junction only Of cold junction only Difference between cold junction and atmospheric temperature Difference between hot and cold junctions ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A stable system is the one Which exhibits an unbounded response to a bounded input Which satisfies the conditions for a servo problem None of these For which the output response is bounded for all bounded input Which exhibits an unbounded response to a bounded input Which satisfies the conditions for a servo problem None of these For which the output response is bounded for all bounded input ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Starting temperature of optical radiation pyrometer is __________ °C. 400 800 1200 1500 400 800 1200 1500 ANSWER DOWNLOAD EXAMIANS APP
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