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. Bode stability None of these Routh stability Nyquist Bode stability None of these Routh stability Nyquist ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches -1 ∞ 1 -1 ∞ 1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Composition of natural gas is determined by the Haldane apparatus Mass spectrometer Both B and C Chromatograph Haldane apparatus Mass spectrometer Both B and C Chromatograph ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The function of a transducer is to Codify/decodify the input signal Amplify the input signal Convert the primary signal into a more useful quantity, usually an electric impulse Modify the input signal Codify/decodify the input signal Amplify the input signal Convert the primary signal into a more useful quantity, usually an electric impulse Modify the input signal ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase margin is equal to 180° - phase lag Phase lag + 90° Phase lag + 180° Phase lag - 180° 180° - phase lag Phase lag + 90° Phase lag + 180° Phase lag - 180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Range of hydrogen gas constant volume themometer is __________ °C. 0 to 100 400 - 1000 -10 to 20 100 - 500 0 to 100 400 - 1000 -10 to 20 100 - 500 ANSWER DOWNLOAD EXAMIANS APP
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