Process Control and Instrumentation The operation of a rotameter is based on Pressure drop across a nozzle Rotation of a turbine Pressure at a stagnation point Variable flow area Pressure drop across a nozzle Rotation of a turbine Pressure at a stagnation point Variable flow area ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh test Cannot be used to test the stability of a control system containing transportation lag Criterion is not applicable to systems with polynomial characteristic equation Can not determine as to how many roots of the characteristics equation have positive real roots Criterion provides information about the actual location of 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 Can not determine as to how many roots of the characteristics equation have positive real roots Criterion provides information about the actual location of roots ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature. Increase of thermal conductivity Differential linear expansion Volumetric expansion Increase of pressure Increase of thermal conductivity Differential linear expansion Volumetric expansion Increase of pressure ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The closed loop pole of a stable second order system could be One real positive and the other real negative Both real and positive Both real and negative Complex conjugate with positive real parts One real positive and the other real negative Both real and positive Both real and negative Complex conjugate with positive real parts ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C. 0-100 < 0 > 100 > 50 0-100 < 0 > 100 > 50 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change ANSWER DOWNLOAD EXAMIANS APP
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