1
GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
In the system shown below, x(t)=(sin t). In steady-state, the response y(t) will be GATE ECE 2006 Control Systems - Frequency Response Analysis Question 62 English
A
$${1 \over {\sqrt 2 }}\sin \left( {t - {\pi \over 4}} \right)$$
B
$${1 \over {\sqrt 2 }}\sin \left( {t + {\pi \over 4}} \right)$$
C
$${1 \over {\sqrt 2 }}{e^{ - t}}\sin t$$
D
$$\sin t - \cos t$$
2
GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
The open-loop transfer function of a unity-gain feedback control system is given by $$G(s) = {K \over {(s + 1)(s + 2)}},$$ the gain margin of the system in dB is given by
A
0
B
1
C
20
D
$$\infty $$
3
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
The unit-step response of a system starting from rest is given by $$$\mathrm c\left(\mathrm t\right)=1-\mathrm e^{-2\mathrm t}\;\mathrm{for}\;\mathrm t\geq0$$$The transfer function of the system is:
A
$$\frac1{1+2s}$$
B
$$\frac2{2+s}$$
C
$$\frac1{2+s}$$
D
$$\frac{2s}{1+2s}$$
4
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
The Nyquist plot of G(jω)H(jω) for a closed loop control system, passes through (-1,j0) point in the GH plane. The gain margin of the system in dB is equal to
A
infinite
B
greater than zero
C
less than zero
D
zero
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