1

GATE ECE 2016 Set 1

MCQ (Single Correct Answer)

+1

-0.3

Match the inferences X, Y, and Z, about a system, to the corresponding properties of the
elements of first column in Routh's Table of the system characteristic equation.

X: The system is stable …

Y: The system is unstable …

Z: The test breaks down …

P: … when all elements are positive

Q: … when any one element is zero

R: … when there is a change in sign of
coefficients

2

GATE ECE 2015 Set 1

Numerical

+1

-0

A unity negative feedback system has the open-loop transfer function
$$$G\left(s\right)\;=\;\frac K{s\left(s\;+\;1\right)\left(s\;+\;3\right)}$$$
The value of the gain K (>0) at which the root locus crosses the imaginary axis is _________.

Your input ____

3

GATE ECE 2014 Set 1

Numerical

+1

-0

The forward path transfer function of a unity negative feedback system is given by
$$$G\left(s\right)\;=\;\frac k{\left(s\;+\;2\right)\left(s\;-\;1\right)}$$$
The value of K which will place both the poles of the closed-loop system at the same
location, is ______.

Your input ____

4

GATE ECE 2013

MCQ (Single Correct Answer)

+1

-0.3

Which one of the following statements is NOT TRUE for a continuous time causal
and stable LTI system?

Questions Asked from Stability (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE Subjects

Signals and Systems

Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics