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1
GATE EE 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
The root locus of unity feedback system is shown in figure GATE EE 2014 Set 1 Control Systems - Root Locus Techniques Question 14 English

The closed loop transfer function of the system is

A
$${{C\left( s \right)} \over {R\left( s \right)}} = {K \over {\left( {s + 1} \right)\left( {s + 2} \right)}}$$
B
$${{C\left( s \right)} \over {R\left( s \right)}} = {{ - K} \over {\left( {s + 1} \right)\left( {s + 2} \right) + K}}$$
C
$${{C\left( s \right)} \over {R\left( s \right)}} = {K \over {\left( {s + 1} \right)\left( {s + 2} \right) - K}}$$
D
$${{C\left( s \right)} \over {R\left( s \right)}} = {K \over {\left( {s + 1} \right)\left( {s + 2} \right) + K}}$$
2
GATE EE 2005
MCQ (Single Correct Answer)
+1
-0.3
Figure shows the root locus plot (location of poles not given) of a third order system whose open loop transfer function is GATE EE 2005 Control Systems - Root Locus Techniques Question 15 English
A
$${K \over {{s^3}}}$$
B
$${K \over {{s^2}\left( {s + 1} \right)}}$$
C
$${K \over {s\left( {{s^2} + 1} \right)}}$$
D
$${K \over {s\left( {{s^2} - 1} \right)}}$$
3
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
Which of the following figure(s) represent valid root loci in the $$s$$ - plane for positive $$K?$$ Assume that the system has transfer function with real coefficient.
A
GATE EE 1992 Control Systems - Root Locus Techniques Question 12 English Option 1
B
GATE EE 1992 Control Systems - Root Locus Techniques Question 12 English Option 2
C
GATE EE 1992 Control Systems - Root Locus Techniques Question 12 English Option 3
D
GATE EE 1992 Control Systems - Root Locus Techniques Question 12 English Option 4
4
GATE EE 1991
MCQ (Single Correct Answer)
+1
-0.3
A unity feedback system has an open-loop transfer function of the form $$KG\left( s \right) = {{K\left( {s + a} \right)} \over {{s^2}\left( {s + b} \right)}};\,\,\,\,b > a$$ Which of the loci shown in Fig. can be valid root-loci for the system?
A
GATE EE 1991 Control Systems - Root Locus Techniques Question 11 English Option 1
B
GATE EE 1991 Control Systems - Root Locus Techniques Question 11 English Option 2
C
GATE EE 1991 Control Systems - Root Locus Techniques Question 11 English Option 3
D
GATE EE 1991 Control Systems - Root Locus Techniques Question 11 English Option 4
GATE EE Subjects
Electric Circuits
Three Phase Circuits Transient Response Graph Theory Two Port Networks Sinusoidal Steady State Analysis Network Elements Network Theorems
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
Signals and Systems
Continuous and Discrete Time Signals Linear Time Invariant Systems Continuous Time Signal Fourier Transform Discrete Time Signal Z Transformation Continuous Time Signal Laplace Transform Sampling Theorem Continuous Time Periodic Signal Fourier Series Miscellaneous
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Engineering Mathematics
Linear Algebra Differential Equations Calculus Probability and Statistics Numerical Methods Vector Calculus Transform Theory Complex Variable
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
Power System Analysis
Parameters and Performance of Transmission Lines Power Generation Cost Power System Stability Symmetrical Components and Symmetrical and Unsymmetrical Faults Circuit Breaker Switch Gear and Protection Per Unit System Load Flow Studies High Voltage Dc Transmission Generating Power Station
Electrical and Electronics Measurement
Error Analysis and Measurement Basic of Indicating Instruments Potentiometer and Instrument Transformers Measurement of Resistance and A.C Bridges Measurement of Energy and Power Digital Voltmeters Questions Cathode Ray Oscilloscope
Analog Electronics
Diode Circuits and Applications Frequency Response Bjt and Mosfet Biasing 555 Timer Feedback Amplifiers and Oscillator Circuits Operational Amplifier Small Signal Modeling
Control Systems
Time Response Analysis Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Root Locus Techniques Basics of Control System Routh Hurwitz Stability Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Single and Three Phase Rectifier Power Semiconductor Devices Ac Voltage Controllers Inverters
Digital Electronics
Sequential Circuits Microprocessor Boolean Algebra Analog to Digital and Digital to Analog Converter Combinational Circuits Minimization Logic Families and Memories Logic Gates
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