Communications - Electronics & Communication Engineering Previous Year Questions
Practice Communications - Electronics & Communication Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
28Papers
19Years
151Questions
1Topics
Communications question pattern
Every graph below is calculated only from this selection.
Questions by year
Compare question counts across years.
Difficulty distribution
How the classified questions are distributed by difficulty.
151questions
Medium94
62.3%
Easy53
35.1%
Hard4
2.6%
Question type distribution
MCQ, numerical, multiple-select and other formats found in these papers.
151questions
MCQ91
60.3%
Numerical Answer Type (NAT)51
33.8%
MSQ5
3.3%
Fill in the blanks4
2.6%
Subject weightage
Top subjects by unique question coverage.
Electronics & Communication Engineering
151 Qs
Most asked topics
Top topics across the included previous year papers.
Communications
151 Qs
Subtopic coverage
Top subtopics inside this exact selection.
Digital Communications
62 Qs
Analog Communications
45 Qs
Information Theory
34 Qs
Random Processes
10 Qs
Paper coverage
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Electronics and Communication Engineering (EC) 2026
7 Qs
Electronics & Communication Engineering (EC) 2025
7 Qs
Electronics & Communication Engineering (EC) 2024
5 Qs
Electronics & Communication Engineering (EC) 2023
3 Qs
Electronics & Communication Engineering (EC) 2022
6 Qs
Electronics & Communication Engineering (EC) 2021
8 Qs
Electronics & Communication Engineering (EC) 2020
5 Qs
Electronics & Communication Engineering (EC) 2019
5 Qs
Electronics & Communication Engineering (EC) 2018
4 Qs
Electronics & Communication Engineering (EC) 2017
5 Qs
Electronics & Communication Engineering (EC) 2017 [Session 1]
5 Qs
Electronics & Communication Engineering (EC) 2017 [Session 2]
5 Qs
Electronics & Communication Engineering (EC) 2016 [Session 1]
8 Qs
Electronics & Communication Engineering (EC) 2016 [Session 2]
5 Qs
Electronics & Communication Engineering (EC) 2016 [Session 3]
5 Qs
Electronics & Communication Engineering (EC) 2014 [Session 4]
5 Qs
Electronics & Communication Engineering (EC) 2014 [Session 2]
2 Qs
Electronics & Communication Engineering (EC) 2014 [Session 3]
1 Qs
Electronics & Communication Engineering (EC) 2013 [Session 1]
4 Qs
Electronics & Communication Engineering (EC) 2013 [Session 2]
4 Qs
Electronics & Communication Engineering (EC) 2013 [Session 3]
4 Qs
Electronics & Communication Engineering (EC) 2013 [Session 4]
4 Qs
Electronics & Communication Engineering (EC) 2012
6 Qs
Electronics & Communication Engineering (EC) 2011
6 Qs
Electronics & Communication Engineering (EC) 2010
4 Qs
Electronics & Communication Engineering (EC) 2009
6 Qs
Electronics & Communication Engineering (EC) 2008
10 Qs
Electronics & Communication Engineering (EC) 2007
12 Qs
Browse by subtopics
Open a focused page built from the same verified paper data.
2008 · Electronics & Communication Engineering · Communications · Analog Communications
Electronics & Communication Engineering (EC) 2008
Consider the amplitude modulated (AM) signal \(A_c \cos \omega_c t + 2\cos \omega_m t \cos \omega_c t\). For demodulating the signal using envelope detector, the minimum value of \(A_c\) should be
2010 · Electronics & Communication Engineering · Communications · Analog Communications
Electronics & Communication Engineering (EC) 2010
Suppose that the modulating signal is \(m(t) = 2\cos(2π f_m t)\) and the carrier signal is \(x_c(t) = A_c \cos(2π f_c t)\). Which one of the following is a conventional AM signal without over-modulation?
2012 · Electronics & Communication Engineering · Communications · Random Processes
Electronics & Communication Engineering (EC) 2012
The power spectral density of a real process \(X(t)\) for positive frequencies is shown below. The values of \(E[X^2(t)]\) and \(|E[X(t)]|\), respectively, are
