Process Control and Instrumentation A typical example of a physical system with under damped characteristic is a Spring loaded diaphragm valve U-tube manometer Thermocouple kept immersed in a liquid filled thermowell CSTR with first order reaction Spring loaded diaphragm valve U-tube manometer Thermocouple kept immersed in a liquid filled thermowell CSTR with first order reaction ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is H(1 + G) G/(1 + H) G/H H/G H(1 + G) G/(1 + H) G/H H/G ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase margin is equal to Phase lag + 90° 180° - phase lag Phase lag + 180° Phase lag - 180° Phase lag + 90° 180° - phase lag Phase lag + 180° Phase lag - 180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh test Can not determine as to how many roots of the characteristics equation have positive real roots Cannot be used to test the stability of a control system containing transportation lag Criterion is not applicable to systems with polynomial characteristic equation Criterion provides information about the actual location of roots Can not determine as to how many roots of the characteristics equation have positive real roots Cannot be used to test the stability of a control system containing transportation lag Criterion is not applicable to systems with polynomial characteristic equation Criterion provides information about the actual location of roots ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature measuring instruments are standardised mostly with __________ points of pure substances. Boiling Both A & B Here Melting Neither A nor B Here Boiling Both A & B Here Melting Neither A nor B Here ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper. Ordinary Log-lag Triangular Semi-log Ordinary Log-lag Triangular Semi-log ANSWER DOWNLOAD EXAMIANS APP
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