21. The peak overshoot Mp is a function of
22. The third order system is approximated to an equivalent second order system. The rise time of this approximated system will be
23. A system with the characteristic equation s2 + Ks + 2K - 1 = 0 is stable for the value
24. The feedback control system shown in figure is stable for values of K and T
25. Which of the following is NOT the advantage of Routh-Hurwitz criterion of control system?
26. Which of the following statements is not true for Nyquist criterion?
27. . . . . . . . . is defined as the time delay that a signal component of frequency ω undergoes as it passes from the input to output of the system.
28. A unity feedback control system is characterized by the open-loop transfer function $$G\left( s \right) = \frac{{10k\left( {s + 2} \right)}}{{{s^3} + 3{s^2} + 10}}.$$ The Nyquist path and the corresponding Nyquist plot of G(s) are shown in the figure below.
If 0 < k < 1, then the number of poles of the closed–loop transfer function that lie in the right-half of the s-plane is
If 0 < k < 1, then the number of poles of the closed–loop transfer function that lie in the right-half of the s-plane is
29. Consider the following statements for pneumatic and hydraulic control systems:
1. The normal operating pressure of pneumatic control is very much higher than that of hydraulic control.
2. In pneumatic control, external leakage is permissible to a certain extent, but there should be no leakage in a hydraulic control.
Which of the statements given above is/are correct?
1. The normal operating pressure of pneumatic control is very much higher than that of hydraulic control.
2. In pneumatic control, external leakage is permissible to a certain extent, but there should be no leakage in a hydraulic control.
Which of the statements given above is/are correct?
30. A linear constant parameter continuous-time system has the following A matrix in its state representation \[\mathop {\rm{X}}\limits^ \cdot = {\rm{AX}} + {\rm{Bu}}{\rm{.}}\]
\[{\rm{A}} = \left[ {\begin{array}{*{20}{c}}
0&\alpha \\
\alpha &0
\end{array}} \right]\]
Which one of the following is the natural response of the system following the application of any input?
\[{\rm{A}} = \left[ {\begin{array}{*{20}{c}} 0&\alpha \\ \alpha &0 \end{array}} \right]\]
Which one of the following is the natural response of the system following the application of any input?
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