MAE 488 Quiz 8 and 9 Exam 2026
Questions and Answers
What is control? - Correct answer-Influencing or forcing the desired behavior of a
system.
What are the outputs of a system? - Correct answer-The desired behavior of the
system.
What are some system behavior specifications? - Correct answer-Performance
specs, like rise time, settling time, overshoot, ss error (ess), etc.
How to achieve control of a system - Correct answer-if the system is represented as
a transfer function, by changing the roots of the characteristic equation
The zeros (roots) of the characteristic equations are called _________ of the
system - Correct answer-poles
The zeros (roots) of the numerator polynomial are called _______ of the system -
Correct answer-zeros
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, When s is equal to a pole, the magnitude of T(s) will tend toward ___________.
When s is equal to one of the zeros, T(s) will be ___________. - Correct answer-
infinity, 0
In a(n) _________________ system, there is no measurement of the error so it is
not possible to reduce the error. - Correct answer-Open loop
In a ______________ system, the error is reduced. The larger the error, the larger
the control signal. - Correct answer-Closed loop
In an ideal controller, the output should ________ the input - Correct answer-equal
4 reasons for control - Correct answer-1. Modify the dynamic response, 2.
Compensate for disturbance, 3. Stabilize an unstable plant, 4. Provide robustness in
case of modeling error, variation in the plant parameters, etc.
The _________ controller is often an open loop controller. - Correct answer-Feed
forward
With ____________ control, increasing K increases the controller output F(s),
which is the signal that drives the plant. - Correct answer-Proportional
A ____________ controller pushes harder on the plant, making it respond faster
and reducing error. - Correct answer-proportional
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Questions and Answers
What is control? - Correct answer-Influencing or forcing the desired behavior of a
system.
What are the outputs of a system? - Correct answer-The desired behavior of the
system.
What are some system behavior specifications? - Correct answer-Performance
specs, like rise time, settling time, overshoot, ss error (ess), etc.
How to achieve control of a system - Correct answer-if the system is represented as
a transfer function, by changing the roots of the characteristic equation
The zeros (roots) of the characteristic equations are called _________ of the
system - Correct answer-poles
The zeros (roots) of the numerator polynomial are called _______ of the system -
Correct answer-zeros
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, When s is equal to a pole, the magnitude of T(s) will tend toward ___________.
When s is equal to one of the zeros, T(s) will be ___________. - Correct answer-
infinity, 0
In a(n) _________________ system, there is no measurement of the error so it is
not possible to reduce the error. - Correct answer-Open loop
In a ______________ system, the error is reduced. The larger the error, the larger
the control signal. - Correct answer-Closed loop
In an ideal controller, the output should ________ the input - Correct answer-equal
4 reasons for control - Correct answer-1. Modify the dynamic response, 2.
Compensate for disturbance, 3. Stabilize an unstable plant, 4. Provide robustness in
case of modeling error, variation in the plant parameters, etc.
The _________ controller is often an open loop controller. - Correct answer-Feed
forward
With ____________ control, increasing K increases the controller output F(s),
which is the signal that drives the plant. - Correct answer-Proportional
A ____________ controller pushes harder on the plant, making it respond faster
and reducing error. - Correct answer-proportional
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
