GO Electronics
Login
Register
@
Dark Mode
Profile
Edit my Profile
Messages
My favorites
Register
Activity
Questions
Unanswered
Tags
Subjects
Users
Ask
New Blog
Blogs
Exams
Dark Mode
Filter
Recent
Hot!
Most votes
Most answers
Most views
Previous GATE
Featured
Most viewed questions
1
vote
2
answers
1
GATE ECE 2017 Set 2 | Question: 44
Figure Ⅰ shows a $4$-bit ripple carry adder realized using full adders and Figure Ⅱ shows the circuit of a full-adder (FA). The propagation delay of the XOR, AND and OR gates in Figure Ⅱ are $20$ ns, $15$ ns and $10$ ns, respectively. Assume ... $Y_3Y_2Y_1Y_0=0100$ and $Z_0=1$. The output of the ripple carry adder will be stable at $t$ (in ns) = ___________
admin
asked
in
Number Representations
Nov 25, 2017
by
admin
32.8k
points
2.4k
views
gate2017-ec-2
numerical-answers
digital-circuits
combinational-circuits
adder
1
vote
1
answer
2
GATE ECE 2020 | GA Question: 8
A circle with centre $\text{O}$ is shown in the figure. A rectangle $\text{PQRS}$ of maximum possible area is inscribed in the circle. If the radius of the circle is $a$, then the area of the shaded portion is _______. $\pi a^{2}-a^{2}$ $\pi a^{2}-\sqrt{2}a^{2}$ $\pi a^{2}-2a^{2}$ $\pi a^{2}-3a^{2}$
go_editor
asked
in
Quantitative Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
2.0k
views
gate2020-ec
numerical-ability
geometry
circle
area
2
votes
1
answer
3
GATE ECE 2021 | GA Question: 8
Consider a square sheet of side $1$ unit. In the first step, it is cut along the main diagonal to get two triangles. In the next step. one of the cut triangles is revolved about its short edge to form a solid cone. The volume of the resulting cone, in cubic units, is ____________ $\frac{\pi }{3}$ $\frac{2\pi }{3}$ $\frac{3\pi }{2}$ $3\pi$
Arjun
asked
in
Quantitative Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
1.7k
views
gateec-2021
numerical-ability
mensuration
cones
1
vote
2
answers
4
GATE ECE 2020 | GA Question: 10
The following figure shows the data of students enrolled in $5$ years $(2014\;\text{to}\; 2018)$ for two schools $P$ and $Q$. During this period, the ratio of the average number of the students enrolled in school $P$ to the average of the difference of the number of students enrolled in schools $P$ and $Q$ is _______. $8 : 23$ $23 : 8$ $23 : 31$ $31 : 23$
go_editor
asked
in
Quantitative Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
1.2k
views
gate2020-ec
numerical-ability
data-interpretation
bar-graph
0
votes
0
answers
5
GATE ECE 2017 Set 1 | Question: 22
Which one of the following statements about differential pulse code modulation (DPCM) is true? The sum of message signal sample with its prediction is quantized The message signal sample is directly quantized, and its prediction is not ... signal sample and a random signal is quantized The difference of message signal sample with its prediction is quantized
admin
asked
in
Communications
Nov 17, 2017
by
admin
32.8k
points
1.1k
views
gate2017-ec-1
digital-communications
differential-pulse-code-modulation
0
votes
5
answers
6
GATE ECE 2018 | GA Question: 10
A coastal region with unparalleled beauty is home to many species of animals. It is dotted with coral reefs and unspoilt white sandy beaches. It has remained inaccessible to tourists due to poor connectivity and lack of accommodation. A ... on the decline and could soon vanish. Helicopter connectivity would lead to an increase in tourists coming to the region.
gatecse
asked
in
Verbal Aptitude
Feb 19, 2018
by
gatecse
1.5k
points
932
views
gate2018-ec
verbal-ability
verbal-reasoning
passage-reading
1
vote
2
answers
7
GATE ECE 2020 | GA Question: 5
A superadditive function $f(\cdot)$ satisfies the following property $f\left ( x_{1} +x_{2}\right )\geq f\left ( x_{1} \right ) + f\left ( x_{2} \right )$ Which of the following functions is a superadditive function for $x > 1$? $e^{x}$ $\sqrt{x}$ $1/x$ $e^{-x}$
go_editor
asked
in
Quantitative Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
882
views
gate2020-ec
numerical-ability
functions
1
vote
2
answers
8
GATE ECE 2020 | GA Question: 2
He was not only accused of theft _____ of conspiracy. rather but also but even rather than
go_editor
asked
in
Verbal Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
800
views
gate2020-ec
verbal-ability
english-grammar
0
votes
1
answer
9
GATE ECE 2013 | Question: 19
The minimum eigenvalue of the following matrix is $\begin{bmatrix} 3& 5& 2\\5 &12 &7 \\2 &7 & 5\end{bmatrix}$ $0$ $1$ $2$ $3$
Milicevic3306
asked
in
Linear Algebra
Mar 26, 2018
by
Milicevic3306
15.8k
points
737
views
gate2013-ec
linear-algebra
matrices
eigen-values
1
vote
1
answer
10
GATE ECE 2020 | GA Question: 1
The untimely loss of life is a cause of serious global concern as thousands of people get killed ____ accidents every year while many other die ____ diseases like cardio vascular disease, cancer, etc. in, of from, of during, from from, from
go_editor
asked
in
Verbal Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
698
views
gate2020-ec
verbal-ability
most-appropriate-word
1
vote
1
answer
11
GATE ECE 2020 | GA Question: 3
Select the word that fits the analogy: Explicit: Implicit :: Express: _______ Impress Repress Compress Suppress
go_editor
asked
in
Verbal Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
641
views
gate2020-ec
verbal-ability
word-pairs
1
vote
1
answer
12
GATE ECE 2021 | GA Question: 6
Given below are two statements and two conclusions. $\text{Statement 1}$: All purple are green. $\text{Statement 2}$: All black are green. $\text{Conclusion I}$: Some black are purple. $\text{Conclusion II}$: No black is purple. Based on the above ... correct Either conclusion $\text{I}$ or $\text{II}$ is correct Both conclusion $\text{I}$ and $\text{II}$ are correct
Arjun
asked
in
Analytical Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
636
views
gateec-2021
analytical-aptitude
logical-reasoning
statements-follow
0
votes
0
answers
13
GATE ECE 2016 Set 2 | Question: 48
An information source generates a binary sequence $\left \{ \alpha _{n} \right \}$. $\alpha _{n}$ can take one of the two possible values $-1$ and $+1$ with equal probability and are statistically independent and identically distributed. This sequence is precoded ... there is a null at $f=\frac{1}{3T}$ in the power spectral density of $X(t)$, then $k$ is ________
Milicevic3306
asked
in
Communications
Mar 28, 2018
by
Milicevic3306
15.8k
points
570
views
gate2016-ec-2
numerical-answers
autocorrelation-and-power-spectral-density
communications
0
votes
0
answers
14
GATE ECE 2017 Set 1 | Question: 3
Consider the following statements about the linear dependence of the real valued function $y_{1}=1,y_{2}=x$ and $y_{3}=x^{2}$ over the field of real numbers. $y_{1},y_{2}$ and $y_{3} $ are linearly independent on $-1\leq x\leq 0$ ... among the following is correct? Both I and II are true Both I and III are true Both II and IV are true Both III and IV are true
admin
asked
in
Vector Analysis
Nov 17, 2017
by
admin
32.8k
points
543
views
gate2017-ec-1
vector-analysis
vector-in-planes
1
vote
0
answers
15
GATE ECE 2020 | Question: 8
The components in the circuit shown below are ideal. If the op-amp is in positive feedback and the input voltage $V_{i}$ is a sine wave of amplitude $1$ $\text{V}$, the output voltage $V_{o}$ is a non-inverted sine wave of $2$ $\text{V}$ amplitude. an inverted sine ... . a square wave of $5$ $\text{V}$ amplitude. a constant of either $+5$ $\text{V}$ or $-5$ $\text{V}$.
go_editor
asked
in
Communications
Feb 13, 2020
by
go_editor
1.9k
points
443
views
gate2020-ec
communications
amplitude
0
votes
0
answers
16
GATE ECE 2017 Set 1 | Question: 14
The Miller effect in the context of a Common Emitter amplifier explains An increase in the low-frequency cutoff frequency An increase in the high-frequency cutoff frequency A decrease in the low-frequency cutoff frequency A decrease in the high -frequency cutoff frequency
admin
asked
in
Analog Circuits
Nov 17, 2017
by
admin
32.8k
points
439
views
gate2017-ec-1
amplifier
analog-circuits
1
vote
1
answer
17
GATE ECE 2021 | GA Question: 9
The number of minutes spent by two students, $X$ and $Y$, exercising every day in a given week are shown in the bar chart above. The number of days in the given week in which one of the students spent a minimum of $10\%$ more than the other student, on a given day, is $4$ $5$ $6$ $7$
Arjun
asked
in
Quantitative Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
438
views
gateec-2021
numerical-ability
data-interpretation
bar-graph
1
vote
1
answer
18
GATE ECE 2020 | GA Question: 9
$a, b, c$ are real numbers. The quadratic equation $ax^{2}-bx+c=0$ has equal roots, which is $\beta$, then $\beta =b/a$ $\beta^{2} =ac$ $\beta^{3} =bc/\left ( 2a^{2} \right )$ $\beta^{2} \neq 4ac$
go_editor
asked
in
Quantitative Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
437
views
gate2020-ec
numerical-ability
quadratic-equations
0
votes
0
answers
19
GATE ECE 2017 Set 1 | Question: 2
The rank of the matrix $\textbf{M} = \begin{bmatrix} 5&10&10 \\ 1 &0 &2 \\ 3&6&6 \end{bmatrix}$ is $0$ $1$ $2$ $3$
admin
asked
in
Linear Algebra
Nov 17, 2017
by
admin
32.8k
points
434
views
gate2017-ec-1
linear-algebra
matrices
rank-of-matrix
0
votes
0
answers
20
GATE ECE 2019 | Question: 7
A linear Hamming code is used to map $4-bit$ message to $7-bit$ codewords. The encoder mapping is linear. If the message $0001$ is mapped to the codeword $0000111$, and the message $0011$ is mapped to the codeword $1100110$, then the message $0010$ is mapped to $0010011$ $1100001$ $1111000$ $1111111$
Arjun
asked
in
Communications
Feb 12, 2019
by
Arjun
6.0k
points
425
views
gate2019-ec
communications
hamming-codes
2
votes
1
answer
21
GATE ECE 2021 | GA Question: 4
$\textit{Nostalgia}$ is to $\textit{anticipation}$ as ____________ is to _____________ Which one of the following options maintains a similar logical relation in the above sentence? Present, past Future, past Past, future Future, present
Arjun
asked
in
Verbal Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
423
views
gateec-2021
verbal-ability
word-pairs
1
vote
1
answer
22
GATE ECE 2021 | GA Question: 5
Consider the following sentences: I woke up from sleep. I woked up from sleep. I was woken up from sleep. I was wokened up from sleep. Which of the above sentences are grammatically $\text{CORRECT}$? $\text{(i) and (ii)}$ $\text{(i) and (iii)}$ $\text{(ii) and (iii)}$ $\text{(i) and (iv)}$
Arjun
asked
in
Verbal Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
412
views
gateec-2021
verbal-ability
english-grammar
tense
1
vote
1
answer
23
GATE ECE 2022 | GA Question: 3
A trapezium has vertices marked as $\text{P, Q, R}$ and $\text{S}$ (in that order anticlockwise). The side $\text{PQ}$ is parallel to side $\text{SR}.$ Further, it is given that, $\text{PQ = 11 cm, QR = 4 cm, RS = 6 cm}$ and $\text{SP = 3 cm.}$ What is the shortest distance between $\text{PQ}$ and $\text{SR (in cm)}?$ $1.80$ $2.40$ $4.20$ $5.76$
Arjun
asked
in
Quantitative Aptitude
Feb 15
by
Arjun
6.0k
points
400
views
gateece-2022
quantitative-aptitude
geometry
1
vote
1
answer
24
GATE ECE 2014 Set 1 | Question: 2
In a housing society, half of the families have a single child per family, while the remaining half have two children per family. The probability that a child picked at random, has a sibling is ________.
Milicevic3306
asked
in
Probability and Statistics
Mar 26, 2018
by
Milicevic3306
15.8k
points
393
views
gate2014-ec-1
numerical-answers
probability-and-statistics
probability
1
vote
2
answers
25
GATE ECE 2020 | GA Question: 4
The Canadian constitution requires that equal importance be given to English and French. Last year, Air Canada lost a lawsuit, and had to pay a six-figure fine to a French-speaking couple after they filed complaints about formal in- ... the French ones. the English announcements being longer than the French ones. equal importance being given to English and French.
go_editor
asked
in
Verbal Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
388
views
gate2020-ec
verbal-ability
verbal-reasoning
passage-reading
1
vote
1
answer
26
GATE ECE 2021 | GA Question: 10
Corners are cut from an equilateral triangle to produce a regular convex hexagon as shown in the figure above. The ratio of the area of the regular convex hexagon to the area of the original equilateral triangle is $2:3$ $3:4$ $4:5$ $5:6$
Arjun
asked
in
Quantitative Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
386
views
gateec-2021
numerical-ability
geometry
triangles
area
0
votes
1
answer
27
GATE ECE 2021 | Question: 1
The vector function $F\left ( r \right )=-x\hat{i}+y\hat{j}$ is defined over a circular arc $C$ shown in the figure. The line integral of $\int _{C} F\left ( r \right ).dr$ is $\frac{1}{2}$ $\frac{1}{4}$ $\frac{1}{6}$ $\frac{1}{3}$
Arjun
asked
in
Vector Analysis
Feb 20, 2021
by
Arjun
6.0k
points
386
views
gateec-2021
vector-analysis
vector-in-planes
0
votes
0
answers
28
GATE ECE 2019 | Question: 11
What is the electric flux $\left(\int \vec{E}.d \hat{a}\right)$ through a quarter-cylinder of height $H$ (as shown in the figure) due to an infinitely long line charge along the axis of the cylinder with a charge density of $Q?$ $\frac{HQ}{\varepsilon_{0}}$ $\frac{HQ}{4\varepsilon_{0}}$ $\frac{H\varepsilon_{0}}{4Q}$ $\frac{4H}{Q\varepsilon_{0}}$
Arjun
asked
in
Electronic Devices
Feb 12, 2019
by
Arjun
6.0k
points
386
views
gate2019-ec
electronic-devices
1
vote
1
answer
29
GATE ECE 2020 | GA Question: 7
It is quarter past three in your watch. The angle between the hour hand and the minute hand is ________. $0^{\circ}$ $7.5^{\circ}$ $15^{\circ}$ $22.5^{\circ}$
go_editor
asked
in
Quantitative Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
385
views
gate2020-ec
numerical-ability
clock-time
0
votes
0
answers
30
GATE ECE 2017 Set 2 | Question: 23
A sinusoidal message signal is converted to a PCM signal using a uniform quantizer. The required signal-to-quantization noise ratio (SQNR) at the output of the quantizer is $40$ dB. The minimum number of bits per sample needed to achieve the desired SQNR is __________
admin
asked
in
Communications
Nov 23, 2017
by
admin
32.8k
points
385
views
gate2017-ec-2
digital-communications
numerical-answers
pulse-code-modulation
0
votes
0
answers
31
GATE ECE 2021 | Question: 14
The complete Nyquist plot of the open-loop transfer function $G(s)H(s)$ of a feedback control system in the figure. If $G(s)H(s)$ has one zero in the right-half of the $s$-plane, the number of poles that the closed-loop system will have in the right-half of the $s$-plane is $0$ $1$ $4$ $3$
Arjun
asked
in
Others
Feb 20, 2021
by
Arjun
6.0k
points
378
views
gateec-2021
0
votes
0
answers
32
GATE ECE 2019 | Question: 28
Consider a six-point decimation-in-time Fast Fourier Transform $(FFT)$ algorithm, for which the signal-flow graph corresponding to $X[1]$ is shown in the figure. Let $W_{6}=exp\left(-\:\dfrac{j2\pi}{6}\right).$ In the figure, what should be the values of the coefficients $a_{1},a_{2},a_{3}$ ... $a_{1}=1,a_{2}=W_{6},a_{3}=W_{6}^{2}$ $a_{1}=-1,a_{2}=W_{6}^{2},a_{3}=W_{6}$
Arjun
asked
in
Continuous-time Signals
Feb 12, 2019
by
Arjun
6.0k
points
362
views
gate2019-ec
continuous-time-signals
signals-and-systems
fourier-transform
0
votes
0
answers
33
GATE ECE 2017 Set 2 | Question: 6
A connection is made consisting of resistance A in series with a parallel combination of resistances $B$ and $C$. Three resistors of value $10 Ω, 5 Ω, 2 Ω$ are provided. Consider all possible permutations of the given resistors ... possible overall resistance. The ratio of maximum to minimum values of the resistances (up to second decimal place) is ___________.
admin
asked
in
Network Solution Methods
Nov 23, 2017
by
admin
32.8k
points
354
views
gate2017-ec-2
numerical-answers
network-solution-methods
to-be-tagged
0
votes
1
answer
34
GATE ECE 2020 | Question: 10
The figure below shows a multiplexer where $S_{1}$ and $S{2}$ are the select lines, $I_{0}$ to $I_{3}$ are the input data lines, $\text{EN}$ is the enable line, and $\text{F(P, Q, R)}$ is the output. $\text{F}$ is $PQ+\overline{Q}R.$ $PQ+Q\overline{R}.$ $P\overline{Q}R+\overline{P}Q.$ $\overline{Q}+PR.$
go_editor
asked
in
Digital Circuits
Feb 13, 2020
by
go_editor
1.9k
points
351
views
gate2020-ec
digital-circuits
combinational-circuits
multiplexers
1
vote
2
answers
35
GATE ECE 2020 | GA Question: 6
The global financial crisis in $2008$ is considered to be the most serious world-wide financial crisis, which started with the sub-prime lending crisis in $\text{USA}$ in $2007$. The sub-prime lending crisis led to the ... $\rightarrow$ East Asian crisis$\rightarrow$ banking crisis$\rightarrow$ subprime lending crisis.
go_editor
asked
in
Verbal Aptitude
Feb 13, 2020
by
go_editor
1.9k
points
349
views
gate2020-ec
verbal-ability
verbal-reasoning
passage-reading
1
vote
1
answer
36
GATE ECE 2021 | GA Question: 3
The least number of squares that must be added so that the line $P-Q$ becomes the line of symmetry is ____________ $4$ $3$ $6$ $7$
Arjun
asked
in
Spatial Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
348
views
gateec-2021
spatial-aptitude
patterns-in-two-dimensions
0
votes
0
answers
37
GATE ECE 2016 Set 1 | Question: 49
A digital communication system uses a repetition code for channel encoding/decoding. During transmission, each bit is repeated three times ($0$ is transmitted as $000$, and $1$ is transmitted as $111$). It is assumed that the source puts ... a $1$. Assuming a binary symmetric channel with crossover probability $p=0.1$, the average probability of error is _________
Milicevic3306
asked
in
Communications
Mar 28, 2018
by
Milicevic3306
15.8k
points
345
views
gate2016-ec-1
numerical-answers
digital-communications
communications
0
votes
0
answers
38
GATE ECE 2018 | Question: 51
The contour $C$ given below is on the complex plane $z=x+j y,$ where $j=\sqrt{-1}.$ The value of the integral $\displaystyle{}\dfrac{1}{\pi j}\oint _{C}\dfrac{dz}{z^{2}-1}$ is _______.
gatecse
asked
in
Complex Analysis
Feb 19, 2018
by
gatecse
1.5k
points
338
views
gate2018-ec
numerical-answers
complex-analysis
0
votes
0
answers
39
GATE ECE 2017 Set 1 | Question: 1
Consider the 5 $\times$ 5 matrix $\begin{bmatrix} 1&2&3&4&5\\ 5&1 &2& 3 &4\\ 4&5&1&2&3\\ 3&4&5&1&2\\ 2&3&4&5&1 \end{bmatrix}$ It is given that A has only one real eigenvalue. Then the real eigenvalue of A is $-2.5$ $0$ $15$ $25$
admin
asked
in
Linear Algebra
Nov 17, 2017
by
admin
32.8k
points
314
views
gate2017-ec-1
linear-algebra
matrices
eigen-values
1
vote
2
answers
40
GATE ECE 2021 | GA Question: 2
$p$ and $q$ are positive integers and $\dfrac{p}{q}+\dfrac{q}{p}=3,$ then, $\dfrac{p^{2}}{q^{2}}+\dfrac{q^{2}}{p^{2}}=$ $3$ $7$ $9$ $11$
Arjun
asked
in
Quantitative Aptitude
Feb 20, 2021
by
Arjun
6.0k
points
309
views
gateec-2021
numerical-ability
algebra
Page:
1
2
3
4
...
69
next »
Top Users
Nov 2022
Welcome to GO Electronics, where you can ask questions and receive answers from other members of the community.