Process Control and Instrumentation Pick out the first order system from among the following. Mercury in glass thermometer kept in boiling water Non-interacting system of two tanks in series Interacting system of two tanks in series Damped vibrator Mercury in glass thermometer kept in boiling water Non-interacting system of two tanks in series Interacting system of two tanks in series Damped vibrator ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Flow rate of a river is measured by a/an Open weir Kennison nozzle Pitot tube Vane meter Open weir Kennison nozzle Pitot tube Vane meter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the systems having following transfer functions is stable? 1/(s²+ 2) 1/(s² + 2s + 2) 1/(s²-2s + 3) Exp(-20s)/(s² + 2s-l) 1/(s²+ 2) 1/(s² + 2s + 2) 1/(s²-2s + 3) Exp(-20s)/(s² + 2s-l) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The unit step response of the transfer function 1/(s² + 2s + 3) Has a non-zero slope at the origin Is overdamped Has a damped oscillatory characteristics Is unstable Has a non-zero slope at the origin Is overdamped Has a damped oscillatory characteristics Is unstable ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 120° Approaches 180° asymptotically Is 30° Is 90° at the most Is 120° Approaches 180° asymptotically Is 30° Is 90° at the most ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a second order under damped system, the Time required for the response of first reach its ultimate value is called the response time Overshoot (which is a measure of how much the response exceeds the ultimate value) increase with the decrease of damping co-efficient e Decay ratio (which is the ratio of the sizes of successive peaks) is equal to the reciprocal of overshoot None of these Time required for the response of first reach its ultimate value is called the response time Overshoot (which is a measure of how much the response exceeds the ultimate value) increase with the decrease of damping co-efficient e Decay ratio (which is the ratio of the sizes of successive peaks) is equal to the reciprocal of overshoot None of these ANSWER DOWNLOAD EXAMIANS APP
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