Help Exercise 1 T F Amarginally stable system has poles on the jo-axis T F Asyst
ID: 2266301 • Letter: H
Question
Help Exercise 1 T F Amarginally stable system has poles on the jo-axis T F Asystem is stable if all poles lie in the right half-plane. TFIn general, a third-order system can be approximated by a second-order system's dominant roots if the real part of the dominant roots is greater than 1/10 of the real part of the third root. T F The s-plane plot of the poles and zeros graphically portrays the character of the natural T F The system sensitivity is the ratio of the change in the system transfer function to the change T F Adisturbance is a desired input signal that affects the system output signal T F The root of the characteristic function are the zeroes of the closed loop system T F Aprimary advantage of an open loop of a control system is the ability to reduce the system's T F The rise time is defined as the time required for the system to settle within a certain T F The transient response of a control system lasts for ever T F The gain margin of a system is the increase in the system gain when the phase is -180° that response of a system of a process transfer function for a small incremental change. sensibility percentage of input amplitude will result in a marginally stable system
Explanation / Answer
true (for marginally stable system there exists only frequency of oscillations) false (for system to be stable all poles should lie on left half of s-plane) false (if a third root is 1/10 of second root then third root is neglected and second root is called dominant root) true true (by definition of sensitivity) false (disturbance is undesired input signal) false (the roots of characteristic equation are poles of the system) true false(rise time is the time taken for signal to reach 50% of its max value) false(transient reponse lasts for small period of time) true
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