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Control Systems
Block Diagram and Signal Flow Graph
Marks 1Marks 2
Polar Nyquist and Bode Plot
Marks 1Marks 2Marks 5
State Variable Analysis
Marks 1Marks 2Marks 5
Basics of Control System
Marks 1Marks 2
Routh Hurwitz Stability
Marks 1Marks 2
Time Response Analysis
Marks 1Marks 2
Root Locus Techniques
Marks 1Marks 2Marks 5
Controller and Compensator
Marks 1Marks 2
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1
GATE EE 2001
MCQ (Single Correct Answer)
+1
-0.3
The polar plot of a type-$$1, 3$$-pole, open-loop system is shown in Fig. below. The closed loop system is GATE EE 2001 Control Systems - Polar Nyquist and Bode Plot Question 50 English
A
always stable
B
marginally stable
C
unstable with one pole on the right half $$s$$-plane
D
unstable with two poles on the right half $$s$$-plane.
2
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
The closed - loop transfer function of a control system is given by $${{C\left( s \right)} \over {R\left( s \right)}} = {1 \over {\left( {1 + s} \right)}}$$
For the input $$\,r\left( t \right)\,\, = \,\,\sin \,t,$$ the steady state value of $$c(t)$$ is equal to
A
$${1 \over {\sqrt 2 }}\cos t$$
B
$$1$$
C
$${1 \over {\sqrt 2 }}sint$$
D
$${1 \over {\sqrt 2 }}sin\left( {1 - {\pi \over 4}} \right)$$
3
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
A unity feedback system has the open loop transfer function $$G\left( s \right) = {1 \over {\left( {s - 1} \right)\left( {s + 2} \right)\left( {s + 3} \right)}}$$
The Nyquist plot of $$G$$ encircle the origin
A
Never
B
Once
C
Twice
D
Thrice
4
GATE EE 1991
MCQ (More than One Correct Answer)
+1
-0
The system having the Bode magnitude plot shown in Fig. below has the transfer function GATE EE 1991 Control Systems - Polar Nyquist and Bode Plot Question 17 English
A
$${{60\left( {s + 0.01} \right)\left( {s + 0.1} \right)} \over {{s^2}{{\left( {s + 0.05} \right)}^2}}}$$
B
$${{10\left( {1 + 10s} \right)} \over {s\left( {1 + 20s} \right)}}$$
C
$${{3\left( {s + 0.05} \right)} \over {s\left( {s + 0.1} \right)\left( {s + 1} \right)}}$$
D
$${{5\left( {s + 0.1} \right)} \over {s\left( {s + 0.05} \right)}}$$
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Questions Asked from Marks 1
GATE EE 2025 (1) GATE EE 2023 (1) GATE EE 2022 (1) GATE EE 2017 Set 1 (2) GATE EE 2016 Set 1 (2) GATE EE 2015 Set 1 (1) GATE EE 2015 Set 2 (1) GATE EE 2013 (1) GATE EE 2012 (1) GATE EE 2011 (2) GATE EE 2009 (1) GATE EE 2005 (2) GATE EE 2004 (1) GATE EE 2001 (2) GATE EE 1996 (1) GATE EE 1992 (1) GATE EE 1991 (2)
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement