Q121
Open questionThe peak overshoot Mp is a function of
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Control Systems
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Q122
Open questionThe third order system is approximated to an equivalent second order system. The rise time of this approximated system will be
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Q123
Open questionA system with the characteristic equation s2 + Ks + 2K - 1 = 0 is stable for the value
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Q124
Open questionThe feedback control system shown in figure is stable for values of K and T
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Q125
Open questionWhich of the following is NOT the advantage of Routh-Hurwitz criterion of control system?
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Q126
Open questionWhich of the following statements is not true for Nyquist criterion?
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Q127
Open question. . . . . . . . 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.
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Q128
Open questionA unity feedback control system is characterized by the open-loop transfer function 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
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Q129
Open questionConsider 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?
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Q130
Open questionA linear constant parameter continuous-time system has the following A matrix in its state representation
{\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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Q131
Open questionThe response c(t) of a system is described by the differential equation
The system response is:
The system response is:
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Q132
Open questionFor small value of gain K, the root must be:
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Q133
Open questionThe open loop dc gain of the unity negative feedback system with closed-loop transfer function is
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Q134
Open questionA system has a single pole at origin. Its impulse response will be:
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Q135
Open questionA lag network for compensation normally consist of
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Q136
Open questionThe state variable representation of a system is given as
\begin{array}{l} \mathop x\limits^ \cdot = \left[ {\begin{array}{*{20}{c}} 0&1\\ 0&{ - 1} \end{array}} \right]x,\,x\left( 0 \right) = \left[ \begin{array}{l} 1\\ 0 \end{array} \right]\\ y = \left[ {0\,\,1} \right]x \end{array}
The response y(t) is
\begin{array}{l} \mathop x\limits^ \cdot = \left[ {\begin{array}{*{20}{c}} 0&1\\ 0&{ - 1} \end{array}} \right]x,\,x\left( 0 \right) = \left[ \begin{array}{l} 1\\ 0 \end{array} \right]\\ y = \left[ {0\,\,1} \right]x \end{array}
The response y(t) is
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Q137
Open questionFor a type 1 system, the low frequency asymptote of its Bode plot will have a slope of:
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Q138
Open questionConsider the following statements for signal flow graph:
1. It represents linear as well as non-linear systems.
2. It is not unique for a given system.
Which of the above statements is/are correct?
1. It represents linear as well as non-linear systems.
2. It is not unique for a given system.
Which of the above statements is/are correct?
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Q139
Open questionThe gain-phase plots of open-loop transfer function of four different systems are shown below. The correct sequence of the increasing order of stability of these four systems will be:
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Q140
Open questionGroup I gives two possible choices for the impedance Z in the diagram. The circuit elements in Z satisfy the condition R2C2 > R1C1. The transfer function represents a kind of controller. Match the impedances in Group I with the types of controllers in Group II.
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