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Analysis and Design of Feedback Control Systems MCQ

1. What is the Z-Transform?

A digital system.

An integral transform.

The Laplace transform.

An integral transform that is related to the Laplace transform through a change of variables.

Answer

Correct Answer: An integral transform that is related to the Laplace transform through a change of variables.

Note: This Question is unanswered, help us to find answer for this one

2. What is the Z-transform used for?

To find the inverse Laplace transform of a function

Primarily with digital systems

Primarily with analog systems

To find the Laplace transform of a function

Answer

Correct Answer: Primarily with digital systems

Note: This Question is unanswered, help us to find answer for this one

3. What is ZOH?

Zero order hold

Zone of Hatching

Zonal Off-Host

Zonal Ocular Hypothesis

Answer

Correct Answer: Zero order hold

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4. What is Zero State Response?

The response of the system with no system state.

The output of the system depends only on the system input.

The output of the system does not depend on any system input.

The response of the system with zero system state.

Answer

Correct Answer: The response of the system with zero system state.

Note: This Question is unanswered, help us to find answer for this one

5. What is the output of the system with zero state response?

The output of the system does not depend on the system input

The output of the system depends only on the system input

The output of the system depends on both the system input and output

The output of the system depends only on the system output

Answer

Correct Answer: The output of the system depends only on the system input

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6. What is the response of a system with zero external input called?

Transfer Function

Positive Feedback Response

Zero Input Response

Negative Feedback Response

Answer

Correct Answer: Zero Input Response

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7. What does a zero value for s in a transfer function cause the transfer function to become?

Zero

Negative

Undefined

Infinite

Answer

Correct Answer: Zero

Note: This Question is unanswered, help us to find answer for this one

8. What is the "I" contribution of PID?

Control correction with an appropriate component

Wind-up of computed control adjustment

PID calculation with an output disconnected

Inappropriate component of PID control correction

Answer

Correct Answer: Control correction with an appropriate component

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9. Wind-up occurs when the numerics of computed control adjustment ______.

Yield control correction with an inappropriate component unless prevented

Cannot be prevented

Only happens with PID

Is the

Answer

Correct Answer: Yield control correction with an inappropriate component unless prevented

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10. What is the W-plane?

X-axis

Z-axis

Y-axis

Reference plane used in the bilinear transform

Answer

Correct Answer: Reference plane used in the bilinear transform

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11. What is the W-plane reference plane used for?

Bi-linear transform

Single transform

Multi-dimensional transform

Linear transform

Answer

Correct Answer: Bi-linear transform

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12. What is the Velocity Error Constant?

A constant that determines that amount of acceleration in a system.

A constant that determines that amount of displacement in a system.

A constant that determines that amount of force in a system.

A constant that determines that amount of velocity error in a system.

Answer

Correct Answer: A constant that determines that amount of velocity error in a system.

Note: This Question is unanswered, help us to find answer for this one

13. What is the amount of steady-state error when the system is stimulated by a ramp input?

Ramp Input

System Input

Velocity Error

Steady-State Error

Answer

Correct Answer: Velocity Error

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14. What is the transfer function of a Unity feedback system?

-1

Zero

Answer

Correct Answer: 1

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15. What is Unit Step?

An input defined by {\displaystyle u(t)}{\displaystyle u(t)}

A change in input over time

A setpoint change

The input divided by the output

Answer

Correct Answer: An input defined by {\displaystyle u(t)}{\displaystyle u(t)}

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16. U(t) is defined as

{\displaystyle u(t)}{\displaystyle u(t)}

Unit Step

Unit Ramp

Unit Square

Answer

Correct Answer: Unit Step

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17. What does MIMO stand for?

Multiple input, multiple output

Matrix in, matrix out

Minimum inhibitory concentration

Maximum input, minimum output

Answer

Correct Answer: Matrix in, matrix out

Note: This Question is unanswered, help us to find answer for this one

18. What is the Laplace transform of the state-space equations of a system called?

Transfer Function Matrix

Laplace Transform

Description of a MIMO system

State Space Equations

Answer

Correct Answer: Transfer Function Matrix

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19. What is the Transfer Function?

The ratio of the system output to its input, in the S-domain.

The Laplace Transform of the system input.

The Laplace Transform of the system output.

The Laplace Transform of the system impulse response.

Answer

Correct Answer: The ratio of the system output to its input, in the S-domain.

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20. What does it mean if a system is time-invariant?

The system will produce the same output for all inputs and all delays.

An input time-shifted by an arbitrary delay produces an output shifted by that same delay.

The system is not affected by changes in time.

The system will produce the same output for all inputs.

Answer

Correct Answer: An input time-shifted by an arbitrary delay produces an output shifted by that same delay.

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21. In a system, what does the number of ideal integrators determine?

Input

Transfer Function

System Type

Output

Answer

Correct Answer: System Type

Note: This Question is unanswered, help us to find answer for this one

22. System Type refers to the:

Transfer function of the system

Number of ideal integrators in the system

Number of subsystems in the system

Type of feedback in the system

Answer

Correct Answer: Number of ideal integrators in the system

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23. What is System Identification?

A way to simplify complex systems

Trying to identify the system characterization, typically through least squares analysis of input, output and noise data vectors

A way to study systems

A method to classify systems

Answer

Correct Answer: Trying to identify the system characterization, typically through least squares analysis of input, output and noise data vectors

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24. What is the condition of superposition?

Only homogeneous

Additive and homogeneous

Only additive

Neither additive nor homogeneous

Answer

Correct Answer: Additive and homogeneous

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25. What does "steady state" refer to?

The input value of the system as time approaches zero.

The output value of the system as time approaches zero.

The input value of the system as time approaches infinity.

The output value of the system as time approaches infinity.

Answer

Correct Answer: The output value of the system as time approaches infinity.

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26. What is the output value of the system called when time approaches infinity?

Unsustainable

Steady State

Infinite

Sporadic

Answer

Correct Answer: Steady State

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27. What is a unit step?

The response of a system when stimulated by a setpoint input.

A setpoint change for setpoint tracking.

A setpoint input.

A setpoint change for process tracking.

Answer

Correct Answer: A setpoint change for setpoint tracking.

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28. What does BIBO stand for?

Bounded-Input, Bounded-Output

Bounded-Input, Big-Output

Big-Input, Big-Output

Big-Input, Bounded-Output

Answer

Correct Answer: Bounded-Input, Bounded-Output

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29. What does Lyapunov Stability refer to?

The system output must approach infinity as time approaches infinity.

The system output cannot approach infinity as time approaches infinity.

There is no system output as time approaches infinity.

The system output can approach infinity as time approaches infinity.

Answer

Correct Answer: The system output cannot approach infinity as time approaches infinity.

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30. What is a State-Variable?

A mathematical function

A vector that describes the internal state of the system.

A the speed at which the system changes

A force that changes the internal state of the system.

Answer

Correct Answer: A vector that describes the internal state of the system.

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31. What are state-space equations?

A set of equations that relates the input, the system state, and the output.

A set of equations that relates the input and the system state.

A set of equations that relates the input and the output.

A set of equations that relates the system state and the output.

Answer

Correct Answer: A set of equations that relates the input, the system state, and the output.

Note: This Question is unanswered, help us to find answer for this one

32. What does the state-space equation consist of?

Only the state equation

The state equation and the output equation

The input equation and the output equation

The state equation and the input equation

Answer

Correct Answer: The state equation and the output equation

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33. What is the state-transition matrix?

A time-invariant system.

A matrix function that relates how the system state changes in response to the system input.

A coefficient matrix that relates how the system state changes in response to the system input.

The matrix exponential of the system matrix.

Answer

Correct Answer: A coefficient matrix that relates how the system state changes in response to the system input.

Note: This Question is unanswered, help us to find answer for this one

34. What is a State Transition Matrix?

A coefficient matrix that relates how the system state changes in response to the system input

A time-invariant system

The matrix exponential of the system matrix

A matrix function that relates how the system state changes in response to the system output

Answer

Correct Answer: A coefficient matrix that relates how the system state changes in response to the system input

Note: This Question is unanswered, help us to find answer for this one

35. What is a state equation?

An equation that relates the current state of a system to its previous state

An equation that relates the future states of a system with the current state and the current system input.

A mathematical formula used to calculate the motion of objects in a state of uniform acceleration

An equation that determines the instantaneous state of a system at a specific time

Answer

Correct Answer: An equation that relates the future states of a system with the current state and the current system input.

Note: This Question is unanswered, help us to find answer for this one

36. What is the Star Transform?

None of the above.

The Laplace Transform.

A version of the Laplace Transform that acts on discrete signals.

A version of the Laplace Transform that acts on continuous signals.

Answer

Correct Answer: A version of the Laplace Transform that acts on discrete signals.

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37. What is "BIBO Stability"?

A system with a well-behaved input will result in a well-behaved output.

Well-behaved in this sense is arbitrary.

A system with a well-behaved output will result in a well-behaved input.

There is no such thing as

Answer

Correct Answer: A system with a well-behaved input will result in a well-behaved output.

Note: This Question is unanswered, help us to find answer for this one

38. What is the designed operation region of an item called?

Span

Radius

Length

Diameter

Answer

Correct Answer: Span

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39. What is the typical band for a system's oscillatory response to be damped to within the steady-state value?

10%

20%

Answer

Correct Answer: 10%

Note: This Question is unanswered, help us to find answer for this one

40. What is the S-Domain?

The range of the Laplace Transform of a signal or system.

The domain of the Laplace Transform of a signal or system.

The Laplace Transform of a signal or system.

The inverse Laplace Transform of a signal or system.

Answer

Correct Answer: The domain of the Laplace Transform of a signal or system.

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41. What is the Laplace Transform of a signal or system?

S-Domain

Laplace Domain

Fourier Domain

Time Domain

Answer

Correct Answer: S-Domain

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42. What does SCADA stand for?

Supervise Control and Data Acquisition

Supervisory Control and Data Acquisition

Systematic Control and Data Acquisition

Secure Citizens Against Domestic Abuse

Answer

Correct Answer: Supervisory Control and Data Acquisition

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43. What is the amount of time between samples in a discrete system?

Symbol rate

Nyquist rate

Sampling time

Shannon rate

Answer

Correct Answer: Sampling time

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44. What is the sampling time in a discrete system?

The highest frequency that can be represented by a signal

The smallest increment of time that can be measured by a system

The largest frequency that can be represented by a signal

The amount of time between samples.

Answer

Correct Answer: The amount of time between samples.

Note: This Question is unanswered, help us to find answer for this one

45. What does robust control deal with?

Control engineering

Systems subject to external and internal noise and disruptions.

Robust systems

Systems subject to external noise and disruptions.

Answer

Correct Answer: Systems subject to external and internal noise and disruptions.

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46. What is Control Engineering?

A branch of engineering that deals with the control of systems

A branch of engineering that deals with the control of machines

A branch of engineering that deals with the control of robots

A branch of engineering that deals with the control of computers

Answer

Correct Answer: A branch of engineering that deals with the control of systems

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47. What is the typical range for Rise Time?

100%

60%

20%

80%

Answer

Correct Answer: 80%

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48. Which of the following is true when the PV is below SP?

Reversing the action is required to bring PV to SP.

The output needs to be increased to bring PV to SP.

The output needs to stay the same to bring PV to SP.

The output needs to be decreased to bring PV to SP.

Answer

Correct Answer: The output needs to be increased to bring PV to SP.

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49. What does it mean if a system is relaxed?

The system is in equilibrium.

The initial conditions are zero.

The final conditions are zero.

The system is unstable.

Answer

Correct Answer: The initial conditions are zero.

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50. What is a ramp?

The time between two events

A oneway street for vehicular traffic

A ramp is defined by the function {\displaystyle tu(t)}{\displaystyle tu(t)}

A device used to assist in the climb of an aircraft

Answer

Correct Answer: A ramp is defined by the function {\displaystyle tu(t)}{\displaystyle tu(t)}

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51. What is a ramp defined by?

{\displaystyle tu(t)}{\displaystyle tu(t)}

{\displaystyle ty(t)}{\displaystyle ty(t)}

{\displaystyle ts(t)}{\displaystyle ts(t)}

{\displaystyle st(s)}{\displaystyle st(s)}

Answer

Correct Answer: {\displaystyle tu(t)}{\displaystyle tu(t)}

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52. What is the output type for Raise-Lower?

5% change

Completely new computed spanned output

Hi clamp-lo clamp

Present position

Answer

Correct Answer: Present position

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53. What type of output is Raise-Lower Output?

Output that does not work from present position

Output that only works from present position

Output that works from present position and is completely new computed spanned output

Type that works from present position rather than as a completely new computed spanned output

Answer

Correct Answer: Type that works from present position rather than as a completely new computed spanned output

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54. What does PV stand for?

Potential Velocity

Predicted Value

Process Variable

Projected View

Answer

Correct Answer: Process Variable

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55. What is the pulse response?

The response of a digital system to a unit impulse input, in terms of the transfer matrix.

The response of a digital system to a unit step input, in terms of the transfer matrix.

The response of an analog system to a unit impulse input, in terms of the transfer matrix.

The response of an analog system to a unit step input, in terms of the transfer matrix.

Answer

Correct Answer: The response of a digital system to a unit step input, in terms of the transfer matrix.

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56. A unit step input is also known as a:

Sine Wave

Pulse Response

Square Wave

Triangle Wave

Answer

Correct Answer: Pulse Response

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57. What does PSD stand for?

Percentage of Standard Deviation

Please Stand By

Power Structure Data

Power Spectral Density

Answer

Correct Answer: Power Spectral Density

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58. Which of the following is true about positive feedback?

The system output is divided by the system input

The system output is subtracted from the system input

The system output is added to the system input

The system output is multiplied by the system input

Answer

Correct Answer: The system output is added to the system input

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59. What does the Position Error Constant determine?

The speed of a system

The position error of a system

The weight of a system

The size of a system

Answer

Correct Answer: The position error of a system

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60. What is Position Error Constant?

A constant that determines the force error of a system.

A constant that determines the acceleration error of a system.

A constant that determines the speed error of a system.

A constant that determines the position error of a system.

Answer

Correct Answer: A constant that determines the position error of a system.

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61. What causes position error?

A system stimulated by a unit step input

The amount of friction in a system

A system not at steady state

A system stimulated by a unit impulse input

Answer

Correct Answer: A system stimulated by a unit step input

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62. What is the purpose of the Pole-Zero Form?

To find the derivative of the transfer function.

To find the integral of the transfer function.

To factor the transfer function so that the locations of all the poles and zeros are clearly evident.

To find the value of the transfer function at a specific point.

Answer

Correct Answer: To factor the transfer function so that the locations of all the poles and zeros are clearly evident.

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63. What is the Pole-Zero Form?

A transfer function with only zeros

The transfer function is factored so that the locations of all the poles and zeros are clearly evident.

A transfer function with no poles or zeros.

A transfer function with only poles

Answer

Correct Answer: The transfer function is factored so that the locations of all the poles and zeros are clearly evident.

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64. What does PLC stand for?

Pulse-code modulation

Power line communication

Programmable logic array

Programmable Logic Controller

Answer

Correct Answer: Programmable Logic Controller

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65. What does Plant refer to in the context?

A central system which has been provided, and must be analyzed or controlled.

A plant used to produce food or medicine

All of the plant life in a particular area

The physical structure of a plant, including its roots, stem, leaves, flowers, and fruit

Answer

Correct Answer: A central system which has been provided, and must be analyzed or controlled.

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66. What does the acronym "PID" stand for?

Proportional-Integral-Derivative

Proportional-Inverse-Derivative

Proportional-Integral-Deviation

Proportional-Independent-Derivative

Answer

Correct Answer: Proportional-Integral-Derivative

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67. What is the final value in the limit that drives system stability?

The Nyquist limit.

The frequency response.

The poles and zeros of the characteristic equation.

The phase response.

Answer

Correct Answer: The poles and zeros of the characteristic equation.

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68. What is the meaning of Percent Overshoot (PO)?

The amount by which the step response overshoots the reference value, in percentage of the reference value.

It will slowly start to fall behind the reference

If the PID parameters are not fine-tuned

The system will never reach the setpoint

Answer

Correct Answer: The amount by which the step response overshoots the reference value, in percentage of the reference value.

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69. What is the PO?

Percent Overshoot

Perfectly Overshot

Percentage of Overshoot

Perfect Overshoot

Answer

Correct Answer: Percent Overshoot

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70. What is Partial Fraction Expansion?

A method by which a simple fraction is decomposed into a product of complex fractions.

A method by which a complex fraction is decomposed into a product of simple fractions.

A method by which a simple fraction is decomposed into a sum of complex fractions.

A method by which a complex fraction is decomposed into a sum of simple fractions.

Answer

Correct Answer: A method by which a complex fraction is decomposed into a sum of simple fractions.

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71. What is a parabolic input defined by?

Y = mx + b

Y = -x^{2} + 4x - 3

Y = x^{3} - 6x^{2} + 9x - 5

{\displaystyle {\frac {1}{2}}t^{2}u(t)}{\displaystyle {\frac {1}{2}}t^{2}u(t)

Answer

Correct Answer: {\displaystyle {\frac {1}{2}}t^{2}u(t)}{\displaystyle {\frac {1}{2}}t^{2}u(t)

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72. What does "overshoot" refer to in the context of systems?

The system response staying at the setpoint

The system response going beyond the setpoint

The extent of system response against desired setpoint tracking.

System response against an undesired setpoint

Answer

Correct Answer: The extent of system response against desired setpoint tracking.

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73. What is Overshoot?

A measure of how close the system is to the desired value

The gap between the desired value and the actual value

System response that exceeds the desired metric

The extent of system response against desired

Answer

Correct Answer: The extent of system response against desired

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74. Output equation relates the to the .

Previous system input, current system state

Current system input, current system state

Current system input, previous system output

Current system output, current system input

Answer

Correct Answer: Current system input, current system state

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75. What is the order of a polynomial?

Number of terms in the polynomial

Lowest exponent of the independent variable

Highest exponent of the independent variable

None of the above

Answer

Correct Answer: Highest exponent of the independent variable

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76. What is optimal control?

A branch of control engineering that deals with the minimization of system cost, or maximization of system performance.

A branch of control engineering that deals with the minimization of system quantity

A branch of control engineering that deals with the minimization of system time

A branch of control engineering that deals with the minimization of system quality

Answer

Correct Answer: A branch of control engineering that deals with the minimization of system cost, or maximization of system performance.

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77. What is an open loop system?

A system that is not closed

A system that is closed

A system where the behavior is controlled

A system where the behavior is not free-running

Answer

Correct Answer: A system that is not closed

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78. What did Oliver Heaviside introduce?

The Laplace Transform

The D'Alembert Operator

The Fourier Transform

The Wronskian

Answer

Correct Answer: The Laplace Transform

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79. What does offset refer to?

The discrepancy between desired and actual value after settling.

The difference between the actual and desired values.

The desired value itself.

The sum of the actual and desired values.

Answer

Correct Answer: The discrepancy between desired and actual value after settling.

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80. What is "offset"?

The discrepancy between desired and actual value after settling

Ballet

Paris

P-only control

Answer

Correct Answer: The discrepancy between desired and actual value after settling

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81. What is the full form of OCTAVE?

Open-source software having a Control Systems toolbox

Octave Transmission Line Analysis Software

Optimal Coding Technique for Audio-Visual Enterprises

Octave is a high-level interpreted language, designed to be very compatible with MATLAB

Answer

Correct Answer: Open-source software having a Control Systems toolbox

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82. What branch of control engineering deals with non-linear systems?

Nonlinear Control

Classical Control

Control Theory

Linear Control

Answer

Correct Answer: Nonlinear Control

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83. What is nonlinear control?

A branch of control engineering that deals exclusively with linear systems.

A branch of control engineering that deals exclusively with non-linear systems.

A branch of control engineering that deals with both linear and non-linear systems.

A branch of control engineering that is unrelated to linear or non-linear systems.

Answer

Correct Answer: A branch of control engineering that deals exclusively with non-linear systems.

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84. What is the Nyquist Criteria?

A method of determining frequency response from magnitude and phase response

A measure of the maximum data rate given a bandwidth and noise level

The number of samples per second required to accurately capture a signal

A necessary and sufficient condition of stability that can be derived from Bode plots.

Answer

Correct Answer: A necessary and sufficient condition of stability that can be derived from Bode plots.

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Analysis and Design of Feedback Control Systems MCQ

1. What is the Z-Transform?

2. What is the Z-transform used for?

3. What is ZOH?

4. What is Zero State Response?

5. What is the output of the system with zero state response?

6. What is the response of a system with zero external input called?

7. What does a zero value for s in a transfer function cause the transfer function to become?

8. What is the "I" contribution of PID?

9. Wind-up occurs when the numerics of computed control adjustment ______.

10. What is the W-plane?

11. What is the W-plane reference plane used for?

12. What is the Velocity Error Constant?

13. What is the amount of steady-state error when the system is stimulated by a ramp input?

14. What is the transfer function of a Unity feedback system?

15. What is Unit Step?

16. U(t) is defined as

17. What does MIMO stand for?

18. What is the Laplace transform of the state-space equations of a system called?

19. What is the Transfer Function?

20. What does it mean if a system is time-invariant?

21. In a system, what does the number of ideal integrators determine?

22. System Type refers to the:

23. What is System Identification?

24. What is the condition of superposition?

25. What does "steady state" refer to?

26. What is the output value of the system called when time approaches infinity?

27. What is a unit step?

28. What does BIBO stand for?

29. What does Lyapunov Stability refer to?

30. What is a State-Variable?

31. What are state-space equations?

32. What does the state-space equation consist of?

33. What is the state-transition matrix?

34. What is a State Transition Matrix?

35. What is a state equation?

36. What is the Star Transform?

37. What is "BIBO Stability"?

38. What is the designed operation region of an item called?

39. What is the typical band for a system's oscillatory response to be damped to within the steady-state value?

40. What is the S-Domain?

41. What is the Laplace Transform of a signal or system?

42. What does SCADA stand for?

43. What is the amount of time between samples in a discrete system?

44. What is the sampling time in a discrete system?

45. What does robust control deal with?

46. What is Control Engineering?

47. What is the typical range for Rise Time?

48. Which of the following is true when the PV is below SP?

49. What does it mean if a system is relaxed?

50. What is a ramp?

51. What is a ramp defined by?

52. What is the output type for Raise-Lower?

53. What type of output is Raise-Lower Output?

54. What does PV stand for?

55. What is the pulse response?

56. A unit step input is also known as a:

57. What does PSD stand for?

58. Which of the following is true about positive feedback?

59. What does the Position Error Constant determine?

60. What is Position Error Constant?

61. What causes position error?

62. What is the purpose of the Pole-Zero Form?

63. What is the Pole-Zero Form?

64. What does PLC stand for?

65. What does Plant refer to in the context?

66. What does the acronym "PID" stand for?

67. What is the final value in the limit that drives system stability?

68. What is the meaning of Percent Overshoot (PO)?

69. What is the PO?

70. What is Partial Fraction Expansion?

71. What is a parabolic input defined by?

72. What does "overshoot" refer to in the context of systems?

73. What is Overshoot?

74. Output equation relates the ____ to the ____.

75. What is the order of a polynomial?

76. What is optimal control?

77. What is an open loop system?

78. What did Oliver Heaviside introduce?

79. What does offset refer to?

74. Output equation relates the to the .