Process Control and Instrumentation Stability of a control system containing a transportation lag can be best analysed by Root locus methods Frequency response methods Routh test None of these Root locus methods Frequency response methods Routh test None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is never used as an element of industrial resistance thermometer? Lead Nickel 30% iron + 70% nickel Copper Lead Nickel 30% iron + 70% nickel Copper ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are Air to open valve with the controller direct acting Air to close valve with the controller direct acting Air to open valve with the controller indirect acting Air to close valve with the controller indirect acting Air to open valve with the controller direct acting Air to close valve with the controller direct acting Air to open valve with the controller indirect acting Air to close valve with the controller indirect acting ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a Flow nozzle type flowmeter Pitot tube Magnetic flowmeter Turbine flowmeter Flow nozzle type flowmeter Pitot tube Magnetic flowmeter Turbine flowmeter 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 A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -90° -180° 45° -45° -90° -180° 45° -45° ANSWER DOWNLOAD EXAMIANS APP
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