Process Control and Instrumentation Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature. Increase of pressure Differential linear expansion Increase of thermal conductivity Volumetric expansion Increase of pressure Differential linear expansion Increase of thermal conductivity Volumetric expansion ANSWER DOWNLOAD EXAMIANS APP
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 A magnetic flowmeter is Based on the principle of Faraday's law Capable of measuring the flow rate of slurries and electrolytes Based on the linear relationship between the fluid flow rate and the induced voltage All of these Based on the principle of Faraday's law Capable of measuring the flow rate of slurries and electrolytes Based on the linear relationship between the fluid flow rate and the induced voltage All of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a pure dead time system with dead time τd is E-τds Eτds 1/(τds + 1) Τds + 1 E-τds Eτds 1/(τds + 1) Τds + 1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh test Criterion provides information about the actual location of roots Cannot be used to test the stability of a control system containing transportation lag Can not determine as to how many roots of the characteristics equation have positive real roots Criterion is not applicable to systems with polynomial characteristic equation Criterion provides information about the actual location of roots Cannot be used to test the stability of a control system containing transportation lag Can not determine as to how many roots of the characteristics equation have positive real roots Criterion is not applicable to systems with polynomial characteristic equation 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 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 ANSWER DOWNLOAD EXAMIANS APP
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