Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is 5π/12 π/6 π/12 π/3 5π/12 π/6 π/12 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a first order system is 1/Ts None of these S/(Ts + 1) 1/(Ts + 1) 1/Ts None of these S/(Ts + 1) 1/(Ts + 1) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ type of element is normally not used in the bimetallic thermometers. Flat spiral Bourdon tube Single helix Multiple helix Flat spiral Bourdon tube Single helix Multiple helix ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Pick out the first order system from among the following. 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 Mercury in glass thermometer kept in boiling water Non-interacting system of two tanks in series ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the sinusoidal response of a first order system is 30° 120° 180° 90° 30° 120° 180° 90° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Positioning controllers are used for Low loads Temperature changes High loads Flow rate changes Low loads Temperature changes High loads Flow rate changes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS