SI100 EE quiz 8

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Compared with the open-loop system, the main difference in closed-loop system is that it has a 
Feedback
Actuator
Process
Desired output
For a feedback control diagram in the figure below, which of the following conclusion CANNOT be derived? 
The open-loop gain is G(s)
The closed-loop gain is [G(s)]/[1+G(s)H(s)]
The actual output can be controlled by adjusting Gc (s)
The measured error send to the controller is X(s)-Y(s)
The name of PID controller implies the composition of three parts in the controller.
  • P part reflects the
    1
    error;
  • I part reflects the
    2
    error;
  • D part reflects the
    3
    error.
  • A.Current
  • B.Past
  • C.Future
  • D.Measurement
  • E.Disturbance
For a typical PID controller.
  • 1
    part can reduce the static error to zero,
  • And
    2
    part can suppress the overshot in the process.
  • A.P
  • B.I
  • C.D
Which controller responds to the step function as shown in the figure below? 
PID
PI
PD
P

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