1
GATE ECE 2023
MCQ (Single Correct Answer)
+1
-0.33
The open loop transfer function of a unity negative feedback system is $$G(s) = {k \over {s(1 + s{T_1})(1 + s{T_2})}}$$, where $$k,T_1$$ and $$T_2$$ are positive constants. The phase cross-over frequency, in rad/s, is
2
GATE ECE 2022
MCQ (Single Correct Answer)
+1
-0.33
Consider a closed-loop control system with unity negative feedback and KG(s) in the forward path, where the gain K = 2. The complete Nyquist plot of the transfer function G(s) is shown in the figure. Note that the Nyquist contour has been chosen to have the clockwise sense. Assume G(s) has no poles on the closed right-half of the complex plane. The number of poles of the closed-loop transfer function in the closed right-half of the complex plane is ___________.
3
GATE ECE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The number and direction of encirclements around the point −1 + j0 in the complex plane by the
Nyquist plot of G(s) =$${{1 - s} \over {4 + 2s}}$$ is
4
GATE ECE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
A closed-loop control system is stable if the Nyquist plot of the corresponding open-loop transfer
function
Questions Asked from Frequency Response Analysis (Marks 1)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE 2024 (1)
GATE ECE 2023 (1)
GATE ECE 2022 (1)
GATE ECE 2016 Set 2 (1)
GATE ECE 2016 Set 1 (1)
GATE ECE 2015 Set 3 (2)
GATE ECE 2015 Set 1 (1)
GATE ECE 2014 Set 4 (1)
GATE ECE 2014 Set 1 (1)
GATE ECE 2013 (1)
GATE ECE 2012 (1)
GATE ECE 2011 (1)
GATE ECE 2010 (2)
GATE ECE 2007 (1)
GATE ECE 2006 (2)
GATE ECE 2005 (1)
GATE ECE 2003 (2)
GATE ECE 2002 (1)
GATE ECE 2001 (1)
GATE ECE 1999 (2)
GATE ECE 1998 (2)
GATE ECE 1995 (1)
GATE ECE 1994 (2)
GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics