Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents Dead time system A second order system A first order time lag A first order system Dead time system A second order system A first order time lag A first order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase margin is equal to 180° - phase lag Phase lag - 180° Phase lag + 90° Phase lag + 180° 180° - phase lag Phase lag - 180° Phase lag + 90° Phase lag + 180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nichol's chart deals with R. vs. phase lag of first order R. vs. phase lag of second order Closed loop values vs. open loop values Frequency response values of controllers R. vs. phase lag of first order R. vs. phase lag of second order Closed loop values vs. open loop values Frequency response values of controllers ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? Poor reproducibility High fidelity High measuring lag High drift Poor reproducibility High fidelity High measuring lag High drift ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The Laplace transform of exp(at), where a > 0, is defined only for the Laplace parameter, s > a since The Laplace transform of integral of exp(at) has finite values only for s > a The function exp(at) is piece-wise continuous only for s > a The Laplace transform integral of exp(at) has initial values only for s > a The function is exponential The Laplace transform of integral of exp(at) has finite values only for s > a The function exp(at) is piece-wise continuous only for s > a The Laplace transform integral of exp(at) has initial values only for s > a The function is exponential ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Change of angle of refraction with composition comprises the working principle of a Refractrometer Spectrometer Polarimeter Polarograph Refractrometer Spectrometer Polarimeter Polarograph ANSWER DOWNLOAD EXAMIANS APP
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