CSE_lecture 1

Question 1

What is the primary purpose of a control system?

Answer 1

To regulate, direct, or command.

Question 2

An arrangement of physical components connected to form a whole for a desired response.

Answer 2

system

Question 3

The stimulus or command applied to the system, usually from an external source.

Answer 3

Input

Question 4

The actual response obtained from the control system.

Answer 4

output

Question 5

The device, plant, or system under control, showing the input-output relationship.

Answer 5

process

Question 6

The quantity or condition that is measured and controlled, typically the system output.

Answer 6

controlled variable

Question 7

The quantity or condition varied by the controller to affect the controlled variable.

Answer 7

manipulated variable

Question 8

Equipment or a set of machines functioning together to perform a particular operation.

Answer 8

plants

Question 9

Signals that tend to adversely affect the system’s output.

Answer 9

disturbances

Question 10

A system where the control action is independent of the output.

Answer 10

Open loop control system

Question 11

A system where the control action depends on the output, typically using feedback.

Answer 11

closed control loop system

Question 12

The process of establishing or reestablishing the input-output relation for accuracy.

Answer 12

calibration

Question 13

The property that allows the output to be compared with the input for corrective action.

Answer 13

feedback

Question 14

What is the primary advantage of a feedback control system?

Answer 14

Increased accuracy and ability to correct disturbances.

Question 15

A system controlling multiple variables simultaneously.

Answer 15

What is a multivariable control system?

Question 16

The tendency of a system to fluctuate due to excessive sensitivity or instability.

Answer 16

oscillation

Question 17

The frequency response measure of how well the system filters variations in input.

Answer 17

bandwidth

Question 18

A signal dependent on a continuum of values of an independent variable, usually time.

Answer 18

analog signal

Question 19

A signal defined at discrete instants of time.

Answer 19

digital signal

Question 20

What type of control system processes only continuous-time signals?

Answer 20

Continuous-time (analog) control systems.

Question 21

What type of control system processes discrete-time signals?

Answer 21

Discrete-time (digital) control systems.

Question 22

Investigating the properties of an existing system.

Answer 22

analysis

Question 23

Choosing and arranging system components to perform a specific task.

Answer 23

design

Question 24

Defining the system form directly from its specifications.

Answer 24

synthesis

Question 25

Amplifying a low-power input to drive a high-power output, such as in radar antennas.

Answer 25

amplifier

Question 26

What are two features of open-loop systems?

Answer 26

Accuracy determined by calibration and absence of instability issues.

Question 27

What is the function of an error detector in a closed-loop system?

Answer 27

To compare the output with the input and generate a corrective action signal.

Question 28

combination of both analog and digital signal

Answer 28

hybrid signal

Question 29

Enumerate the components of a control system.

Answer 29

Input Output Process Controlled Variable Manipulated Variable Disturbances

Question 30

Enumerate the two general categories of control systems.

Answer 30

Open-Loop Control System Closed-Loop Control System

Question 31

Enumerate the characteristics of feedback in control systems.

Answer 31

Increased accuracy Tendency toward oscillation or instability Reduced sensitivity to system parameter variations Reduced effects of nonlinearities Reduced effects of external disturbances or noise Increased bandwidth

Question 32

Enumerate the four primary reasons for using control systems.

Answer 32

Power amplification Remote control Convenience of input form Compensation for disturbances

Question 33

Enumerate the advantages of feedback control systems.

Answer 33

Improved accuracy Ability to adapt to changes Reduced sensitivity to disturbances Enhanced performance Reduced overshoot and improved response times

Question 34

Enumerate the types of signals in control systems.

Answer 34

Continuous-Time (Analog) Signals Discrete-Time (Digital) Signals Hybrid Signals

Question 35

Enumerate the two types of design processes in control system engineering.

Answer 35

Design by Analysis Design by Synthesis