T F An overdamped system experiences oscillations before settling T F In general

Question

T F An overdamped system experiences oscillations before settling T F In 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 response of a system The system sensitivity is the ratio of the change in the system transfer function to the change of a process transfer function for a small incremental change. T F A disturbance is a desired input signal that affects the system output signal T F Noise signal mostly affects the high frequency range of a system response T F

Explanation / Answer

1. False , the over damped system never settles.

2. True, this is the condition for approximating third order system to second order system.

3. True, the s-plane plot shows the natural response of the system. (Under damped, critically damped or over damped).

4. True, that is the definition of the sensitivity of the closed loop system with respect to plant transfer function

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