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
1
GATE EE 2009
MCQ (Single Correct Answer)
+2
-0.6
The open loop transfer function of a unity feedback system is given by $$G\left( s \right) = \left( {{e^{ - 0.1s}}} \right)/s.$$
The gain margin of this system is
A
$$11.95$$ $$dB$$
B
$$17.67$$ $$dB$$
C
$$21.33$$ $$dB$$
D
$$23.9$$ $$dB$$
2
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The asymptotic Bode magnitude plot of a minimum phase transfer function is shown in the figure: GATE EE 2008 Control Systems - Polar Nyquist and Bode Plot Question 11 English

This transfer function has

A
three poles and one zero
B
two poles and one zero
C
two poles and two zeros
D
one pole and two zeros
3
GATE EE 2007
MCQ (Single Correct Answer)
+2
-0.6
If $$X = {\mathop{\rm Re}\nolimits} G\left( {j\omega } \right),\,\,$$ and $$y = {\rm I}mG\left( {j\omega } \right)$$ then for $$\omega \to {0^ + },\,\,$$ the Nyquist plot for $$G\left( s \right) = 1/\left[ {s\left( {s + 1} \right)\left( {s + 2} \right)} \right]$$
A
$$x=0$$
B
$$x=-3/4$$
C
$$x=y-1/6$$
D
$$x = y/\sqrt 3 $$
4
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
Consider the following Nyquist plots of loop transfer functions over $$\omega = 0$$ to $$\omega = \infty .$$ Which of these plots represents a stable closed loop system? GATE EE 2006 Control Systems - Polar Nyquist and Bode Plot Question 12 English 1 GATE EE 2006 Control Systems - Polar Nyquist and Bode Plot Question 12 English 2 GATE EE 2006 Control Systems - Polar Nyquist and Bode Plot Question 12 English 3 GATE EE 2006 Control Systems - Polar Nyquist and Bode Plot Question 12 English 4
A
$$(1)$$ only
B
all, except $$(1)$$
C
all, except $$(3)$$
D
$$(1)$$ and $$(2)$$ only
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