INTRODUCTION
50 questions available
Questions
What is the fundamental definition of a control system as described in the text?
View answer and explanationWhich of the following is NOT listed as one of the four primary reasons for building control systems?
View answer and explanationIn the context of control systems history, who invented the flyball speed governor to control the speed of steam engines?
View answer and explanationWhat is the distinguishing characteristic of an open-loop system according to the text?
View answer and explanationIn a closed-loop system, what is the signal resulting from the algebraic summation of the input signal and the feedback signal called?
View answer and explanationUnder what specific condition is the actuating signal in a feedback control system also called the error?
View answer and explanationWhich of the following are the three major objectives of control system analysis and design?
View answer and explanationThe total response of a linear system is the sum of which two components?
View answer and explanationWhat is the condition called when a system's natural response grows without bound, leading to a loss of control?
View answer and explanationIn the antenna azimuth position control system case study, what is the effect of increasing the gain of the signal amplifier on the steady-state error?
View answer and explanationAccording to the six-step control system design process outlined in Figure 1.10, what is the first step?
View answer and explanationIn Step 4 of the design process, which physical laws are mentioned as being used to develop a mathematical model for electrical and mechanical systems, respectively?
View answer and explanationWhich standard test input represents a constant command, such as a desired position or velocity?
View answer and explanationWho is credited with extending the stability criterion from third-order systems to fifth-order systems in 1874, forming what is now known as the Routh-Hurwitz criterion?
View answer and explanationWhat graphical technique, developed by Walter R. Evans in 1948, is used to plot the roots of a characteristic equation of a feedback system as a parameter is varied?
View answer and explanationIn the context of the design process, what is a 'compensator'?
View answer and explanationWhat is the primary advantage of using a digital computer as the controller in a modern control system?
View answer and explanationWhat does a robust design in control systems aim to achieve?
View answer and explanationIn the control systems analysis and design process, what is the purpose of using standard test inputs like steps and ramps?
View answer and explanationWhat is the nature of the relationship between force and displacement for an ideal spring component in a translational mechanical system?
View answer and explanationA temperature control system that senses the difference between the thermostat setting and the actual temperature to open a fuel valve is an example of what type of system?
View answer and explanationWhat is the main function of the 'input transducer' in a generic control system block diagram?
View answer and explanationThe development of analysis techniques for feedback amplifiers in the 1920s and 1930s by H. W. Bode and H. Nyquist led to what is currently known as:
View answer and explanationAn example of an open-loop system mentioned in the text is a toaster. Why is it considered open-loop?
View answer and explanationWhat is the sixth and final step in the control system design process as shown in Figure 1.10?
View answer and explanationWhich part of a system's total response is dependent only on the system itself and not the input?
View answer and explanationIn the control system for an aircraft's roll angle as described in Problem 3, what component acts as the plant?
View answer and explanationWhat is the primary advantage of a closed-loop control system over an open-loop one?
View answer and explanationWhat academic background should a student using this textbook ideally have, according to the Preface?
View answer and explanationIn the control system design process, simplifying assumptions are often made when creating the schematic in Step 3. What is the stated reason for this?
View answer and explanationWhat is the order of the differential equation d2x/dt2 + 6dx/dt + 8x = 5 sin 3t?
View answer and explanationThe term 'plant' in a control system refers to what?
View answer and explanationWhy is transient response an important design objective for a system like an elevator?
View answer and explanationAccording to the history section, the Greeks around 300 B.C. engineered a feedback system to keep a water clock's supply tank at a constant level. What modern device uses a similar principle?
View answer and explanationWhat is the primary function of the 'controller' component in a control system block diagram?
View answer and explanationIf a system is stable, its natural response must do one of two things as time approaches infinity. What are they?
View answer and explanationIn the human eye's light-pupil system described in Problem 9, what acts as the sensor?
View answer and explanationWhich analysis and design objective is concerned with the final accuracy of a control system, for example, ensuring an elevator is level with the floor?
View answer and explanationIn Step 3 of the design process, creating a schematic for the antenna azimuth control system, what simplifying assumption is made about the amplifiers?
View answer and explanationA key benefit of studying control systems for engineering students is that it provides a 'top-down systems approach.' What does this mean?
View answer and explanationWhat is the primary trade-off that a control systems engineer must consider between an open-loop and a closed-loop system?
View answer and explanationWhat is the function of the summing junction in a closed-loop block diagram?
View answer and explanationWhat is meant by 'convenience of input form' as a reason for building control systems?
View answer and explanationIn the context of the history of control systems, 'proportional-plus-integral-plus-derivative' control is also known by what other name?
View answer and explanationWhat is the subject of Step 5 in the control system design process?
View answer and explanationIn the automatic volume control system for a motorcycle radio described in Problem 4, what acts as a disturbance?
View answer and explanationWhat type of input signal is represented by the function tu(t), where u(t) is the unit step function?
View answer and explanationWhat is the main role of a control systems engineer in the context of a large, multidisciplinary project?
View answer and explanationIn the antenna azimuth position control system, a potentiometer is used as a sensor. What does it do?
View answer and explanationWhat is the final analysis and design objective listed in Chapter 1, which is considered a prerequisite for the other two?
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