Design & Analysis of Control Systems MCQs
Design & Analysis of Control Systems MCQs
Answer these Design & Analysis of Control Systems MCQs and assess your grip on the subject of Design & Analysis of Control Systems.
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1: What is the amount of steady state error of the system when stimulated by a unit parabolic input?
A. Acceleration Error
B. Position Error
C. Speed Error
D. Parabolic Error
2: What is an Acceleration Error?
A. The amount of steady state error of the system when stimulated by a unit step input.
B. The amount of steady state error of the system when stimulated by a unit parabolic input.
C. The rate of change of displacement
D. The rate of change of velocity
3: What is the Acceleration Error Constant?
A. The amount of force required to move an object
B. A device used to measure acceleration
C. A system metric that determines that amount of acceleration error in the system.
D. The rate of change of velocity
4: What is the main difference between adaptive control and normal control?
A. Adaptive control systems require more power than normal control systems.
B. Adaptive control systems are more expensive than normal control systems.
C. Adaptive control systems are not as accurate as normal control systems.
D. Adaptive control systems are able to change their response characteristics over time, while normal control systems cannot.
5: What is adaptive gain?
A. When control gain is varied depending on system state or condition, such as a disturbance.
B. A measure of how well a system can cope with changes
C. When control gain is fixed and does not vary depending on system state or condition.
D. A measure of how well a system responds to changes
6: What does it mean if a system is additive?
A. A sum of inputs results in an average of outputs.
B. A sum of inputs results in a difference of outputs.
C. A sum of inputs results in a sum of outputs.
D. A sum of inputs results in a product of outputs.
7: What does a block diagram do?
A. It displays individual system components as boxes, and connections between systems as lines.
B. It displays individual system components as boxes, and connections between systems as arrows.
C. It displays individual system components as circles, and connections between systems as arrows.
D. It displays individual system components as boxes, and connections between systems as circles.
8: What is plotted on the magnitude graph of a Bode plot?
A. Decibels vs. frequency
B. Phase vs. frequency
C. Magnitude vs. frequency
D. Degrees vs. frequency
9: What does BIBO stand for?
A. Bounded Input, Bounded Operand
B. Bounded Input, Bounded Output
C. Bounded Input, Bounded Operator
D. Bounded Integral, Bounded Output
10: What does Cascade mean?
A. When the output of a control loop is used to adjust the set point of another loop.
B. When the output of a control loop is fed to/from another loop.
C. When two or more control loops are in series.
D. When two or more control loops are in the same process.
11: What does it mean when a system is causal?
A. The output does depend on future inputs.
B. The output does not depend on past inputs.
C. The output does not depend on present inputs.
D. The output does not depend on future inputs.
12: What is the name of the control methodology that uses the transform domain to analyze and manipulate the Input-Output characteristics of a system?
A. Classical Controls
B. Control Classical
C. Classical Control
D. Classic Controls
13: What is a Closed Loop?
A. A feedback system in which the output is continuously compared to the input
B. A controlled system using feedback or feedforward
C. A device that controls the level of liquid in a tank
D. A method of organizational control in which an authority figure acts only in response to cues
14: What does a compensator do?
A. A method of price control
B. A control system that augments the shortcomings of another system.
C. A machine that compacts soil
D. A device used to measure angles
15: What does Damping Ratio determine?
A. The damping properties of a system.
B. The velocity of a system.
C. The acceleration of a system.
D. The position of a system.
16: What is the damping ratio?
A. The stiffness of a system.
B. The amount of time it takes for a system to reach equilibrium.
C. A constant that determines the damping properties of a system.
D. The amount of energy dissipation in a system.
17: What is "Deadtime"?
A. The time shift between the output change and the related effect
B. When a machine is unplugged
C. The end of a machine's lifespan
D. When a power is shut off
18: What is "Lag" used for?
A. The time it takes for one complete waveform
B. Dead time shift between the output change and the related effect
C. The time it takes for a control sample to change
D. The time inbetween output changes
19: What is a digital system?
A. A system that is analog
B. A system that uses digital signals
C. A system that is both discrete-time, and quantized.
D. A system that is discrete-time
20: What is the ultimate goal of direct action?
A. Bring the process variable (PV) to setpoint (SP)
B. Allow the process to continue
C. Stop the process
D. Maintain the process
21: Direct action is required when ____.
A. Output is above SP
B. PV is above SP
C. Output is below SP
D. PV is below SP
22: What is a discrete time system?
A. A system or signal that is only defined at specific points in space.
B. A system or signal that is only defined at specific points in time.
C. A system or signal that is defined at any point in space.
D. A system or signal that is defined at any point in time.
23: What does it mean if a system is distributed?
A. It has an infinite number of states, and a finite number of state variables.
B. It has a finite number of states, and an infinite number of state variables.
C. It has both an infinite number of states, and an infinite number of state variables.
D. It has a finite number of states, and a finite number of state variables.
24: What is a system called if it has both an infinite number of states, and an infinite number of state variables?
A. Lumped
B. Infinite
C. Random
D. Distributed
25: What are eigenvalues?
A. The determinant of a matrix
B. Solutions to the characteristic equation of a matrix
C. A method of solving differential equations
D. The inverse of a matrix
26: What are Eigenvectors?
A. Transition vectors of a system
B. Nullspace vectors of the characteristic equation for particular eigenvalues.
C. Vectors that result from the addition of two vectors.
D. Length measurements of a vector
27: What is Euler's Formula?
A. An equation that relates complex exponentials to complex sinusoids.
B. A formula used to calculate the probability of an event.
C. A mathematical statement that two variables are equal.
D. An equation used to calculate the circumference of a circle.
28: What is the Exponential Weighted Average?
A. A method of calculating the average of a data set that randomly assigns weights to data points
B. A method of calculating the average of a data set that gives more weight to recent data points
C. A method of calculating the average of a data set that gives more weight to older data points
29: What is Exponential Weighted Average?
A. Apportions fractional weight to new and existing data to form a working average.
B. Apportions fractional weight to existing data to form a working average.
C. Apportions fractional weight to new data to form a working average.
D. Apportions whole weight to new and existing data to form a working average.
30: What is a system that relates the input of the system to the output without explicitly accounting for the internal states of the system?
A. Internal Description
B. System Description
C. External Description
D. External System
31: What is the name of the process when apriori knowledge is used to forecast at least part of the control response?
A. Prediction
B. Feedforward
C. Feedback
D. Forecasting
32: What is filtering?
A. Use of signal multiplication techniques to reject all components of the noise.
B. Use of signal averaging techniques to improve all components of the signal.
C. Use of signal smoothing techniques to reject undesirable components like noise.
D. Use of signal enhancement techniques to improve desirable components like sound.
33: What is signal filtering?
A. Rejecting undesirable components like noise from a signal.
B. Adding an echo to a signal
C. Making a signal louder
D. Changing the pitch of a signal
34: What does the final value theorem allow you to determine?
A. The order of a system
B. The input of a system
C. The transfer function of a system
D. The steady-state value of a system
35: What is the Frequency Response?
A. The response of a system to impulses.
B. The response of a system to sinusoids of different frequencies.
C. The response of a system to sinusoids of the same frequency.
D. The Fourier Transform of the impulse response.
36: What is the Fourier Transform of the impulse response?
A. System response
B. Frequency Response
C. Impulse response
D. Step response
37: What is game theory?
A. A branch of study that is related to mathematics, and especially number theory.
B. A branch of study that is related to control engineering, and especially optimal control.
C. A branch of study that is related to sociology, and especially social interactions.
D. A branch of study that is related to psychology, and especially behavioral studies.
38: What is gain?
A. The number of decibels by which a sound wave's pressure varies from the average atmospheric pressure.
B. A measure of loudness
C. A constant multiplier in a system that is typically implemented as an amplifier or attenuator.
D. The degree to which something is increased
39: What does an External System Description do?
A. Defines the relationship between the system output and the system input.
B. Describes the system response in relation to the system input and the system output.
C. Describes the system output in relation to the system input and the system response.
D. Relates the system output to the system input, the system response, and a time constant through integration.
40: Which of the following is not one of Hendrik Wade Bode's achievements?
A. Work in Control Theory and Communications
B. Development of the Bromley Altitude Telemeter
C. Electrical Engineering
D. Introduction of the Bode plot
41: What did Hendrik Wade Bode mostly work on?
A. Electrical engineering
B. Bode plot
C. Control theory and communications
D. Control engineering
42: For which field is Harry Nyquist known?
A. Nyquist Stability Criterion
B. Information Theory
C. Mathematics
D. Electrical Engineering
43: What did Harry Nyquist do?
A. Research in Nyquist's Theorem
B. Electrical Engineer
C. Introduction of the Nyquist Stability Criterion
D. Work in controls and information theory
44: What is homogeniety?
A. A system in which all the elements are the same.
B. The property of a system whose scaled input results in an equally scaled output.
C. A system in which all the elements are different.
D. A system in which the input does not affect the output.
45: What is homogeneity?
A. A system with no output.
B. A system whose scaled input results in an equally scaled output.
C. A system with no input.
D. A system whose scaled input does not result in an equally scaled output.
46: What is a hybrid system?
A. A system with only digital components.
B. A system that is not electronic.
C. A system with only analog components.
D. A system with both analog and digital components.
47: What are hybrid systems?
A. Systems which have only analog components
B. Systems which have only digital components
C. Nothing
D. Systems which have both analog and digital components
48: What is the unit step function?
A. A function that is the derivative of the unit impulse function.
B. A function that is the sum of the unit impulse function and the unit step function.
C. A function that is the integral of the unit impulse function.
D. A function that is the difference of the unit impulse function and the unit step function.
49: What is impulse?
A. It is the product of force and time
B. It is a sudden application or force
C. A function denoted δ(t), that is the derivative of the unit step
D. It is the rate of change of momentum
50: What is the system output when the system is stimulated by an impulse input?
A. Laplace Transform
B. Output Response
C. Impulse Response
D. Transfer Function
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