1
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following polar diagrams corresponds to a lag network?
A
GATE ECE 2005 Control Systems - Frequency Response Analysis Question 59 English Option 1
B
GATE ECE 2005 Control Systems - Frequency Response Analysis Question 59 English Option 2
C
GATE ECE 2005 Control Systems - Frequency Response Analysis Question 59 English Option 3
D
GATE ECE 2005 Control Systems - Frequency Response Analysis Question 59 English Option 4
2
GATE ECE 2003
MCQ (Single Correct Answer)
+1
-0.3
Figure shows the Nyquist plot of the open-loop transfer function G(s)H(s) of a system. If G(s)H(s) has one right hand pole, the closed loop system is GATE ECE 2003 Control Systems - Frequency Response Analysis Question 61 English
A
always stable
B
unstable with one closed-loop right hand pole
C
unstable with two closed-loop right hand poles
D
unstable with three closed-loop right hand poles
3
GATE ECE 2003
MCQ (Single Correct Answer)
+1
-0.3
The gain margin for the system with open-loop transfer function G(s)H(s)=$${{2(1 + s)} \over {{s^2}}}$$ is
A
$$\infty $$
B
0
C
1
D
$$ - \infty $$
4
GATE ECE 2002
MCQ (Single Correct Answer)
+1
-0.3
The phase margin of a system with the open-loop transfer function G(s)H(s)=$${{(1 - s)} \over {(1 + s)(2 + s)}}$$ is?
A
$$0^\circ $$
B
$$63.4^\circ $$
C
$$90^\circ $$
D
$$\infty $$
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