Process Control and Instrumentation Time constant is the 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 Same as dead time ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Bode diagram is a plot of Log (AR) vs. log (f) and (Φ) vs. log (f) AR vs. log (f) and Φ vs. log (f) Log (AR) vs. f and log Φ vs.f None of these Log (AR) vs. log (f) and (Φ) vs. log (f) AR vs. log (f) and Φ vs. log (f) Log (AR) vs. f and log Φ vs.f None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For an input forcing function, X(t) = 2t², the Laplace transform of this function is 2/s² 4/s² 2/s³ 4/s³ 2/s² 4/s² 2/s³ 4/s³ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells are used in the temperature measurement to Guard against corrosive and oxidising action on thermocouple materials Increase the fidelity Increase the sensitivity Reduce measuring lag Guard against corrosive and oxidising action on thermocouple materials Increase the fidelity Increase the sensitivity Reduce measuring lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents Dead time system 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 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A simple pitot tube measures the Maximum velocity Average velocity Static pressure Point velocity Maximum velocity Average velocity Static pressure Point velocity ANSWER DOWNLOAD EXAMIANS APP
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