1
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The transfer function of a linear time invariant system is given as $$G\left( s \right) = {1 \over {{s^2} + 3s + 2}}$$

The steady state value of the output of the system for a unit impulse input applied at time instant $$t=1$$ will be

A
$$0$$
B
$$0.5$$
C
$$1$$
D
$$2$$
2
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The state space equation of a system is described by $$\mathop X\limits^ \bullet = AX + BU,\,\,Y = Cx$$ where $$X$$ is state vector, $$U$$ is input, $$Y$$ is output and $$$A = \left( {\matrix{ 0 & 1 \cr 0 & { - 2} \cr } } \right)\,\,B = \left( {\matrix{ 0 \cr 1 \cr } } \right)\,\,C = \left[ {\matrix{ 1 & 0 \cr } } \right]$$$

A unity feedback is provided to the above system $$G(s)$$ to make it a closed loop system as shown in figure.

GATE EE 2008 Control Systems - State Variable Analysis Question 20 English

For a unit step input $$r(t),$$ the steady state error in the input will be

A
$$0$$
B
$$1$$
C
$$2$$
D
$$\infty $$
3
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The state space equation of a system is described by $$\mathop X\limits^ \bullet = AX + BU,\,\,Y = Cx$$ where $$X$$ is state vector, $$U$$ is input, $$Y$$ is output and $$$A = \left( {\matrix{ 0 & 1 \cr 0 & { - 2} \cr } } \right)\,\,B = \left( {\matrix{ 0 \cr 1 \cr } } \right)\,\,C = \left[ {\matrix{ 1 & 0 \cr } } \right]$$$

The transfer function $$G(s)$$ of this system will be

A
$${s \over {\left( {s + 2} \right)}}$$
B
$${{s + 1} \over {s\left( {s - 2} \right)}}$$
C
$${s \over {\left( {s - 2} \right)}}$$
D
$${1 \over {s\left( {s + 2} \right)}}$$
4
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The transfer function of two compensators are given below: $${C_1} = {{10\left( {s + 1} \right)} \over {\left( {s + 10} \right)}},\,{C_2} = {{s + 10} \over {10\left( {s + 1} \right)}}$$

Which one of the following statements is correct?

A
$${C_1}$$ is lead compensator and $${C_2}$$ is a lag compensator
B
$${C_1}$$ is a lag compensator and $${C_2}$$ is a lead compensator
C
Both $${C_1}$$ and $${C_2}$$ are lead compensator
D
Both $${C_1}$$ and $${C_2}$$ are lag compensator
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