Process Control and Instrumentation 0n-off control which is a special case of proportional control, has a band width of about __________ percent. 25 100 75 25 100 75 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The closed loop pole of a stable second order system could be Both real and negative One real positive and the other real negative Both real and positive Complex conjugate with positive real parts Both real and negative One real positive and the other real negative Both real and positive Complex conjugate with positive real parts ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Suppose that the gain, time constant and dead time of a process with the following transfer function:Gc(s) = 10 exp( - 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as 12, 0.6, 0.12 8, 0.6, 0.08 12, 0.4, 0.08 8, 0.6, 0.12 12, 0.6, 0.12 8, 0.6, 0.08 12, 0.4, 0.08 8, 0.6, 0.12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C. -38.9 -11.9 -80.9 -60.9 -38.9 -11.9 -80.9 -60.9 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a Bimetallic thermometer Dilatometer Beckman thermometer Mercury thermometer Bimetallic thermometer Dilatometer Beckman thermometer Mercury thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a variable area flow meter? Orifice and tapered plug meter Rotameter Magnetic flow meter Piston type meter Orifice and tapered plug meter Rotameter Magnetic flow meter Piston type meter ANSWER DOWNLOAD EXAMIANS APP
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