Highest voted questions / GO Electrical

1 votes

2 answers

41

GATE Electrical 2021 | GA Question: 2
A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like ________________.

A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like ________________.

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

2 answers

42

GATE Electrical 2021 | GA Question: 3
For a regular polygon having $10$ sides, the interior angle between the sides of the polygon, in degrees, is: $396$ $324$ $216$ $144$

For a regular polygon having $10$ sides, the interior angle between the sides of the polygon, in degrees, is:$396$$324$$216$$144$

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

1 answer

43

GATE Electrical 2021 | GA Question: 5
$\textit{Oasis}$ is to $\textit{sand}$ as $\textit{island}$ is to _____________ Which one of the following options maintains a similar logical relation in the above sentence? Stone Land Water Mountain

$\textit{Oasis}$ is to $\textit{sand}$ as $\textit{island}$ is to _____________Which one of the following options maintains a similar logical relation in the above senten...

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

1 answer

44

GATE Electrical 2021 | GA Question: 6
The importance of sleep is often overlooked by students when they are preparing for exams. Research has consistently shown that sleep deprivation greatly reduces the ability to recall the material learnt. Hence, cutting down on sleep to study longer hours can ... he needs little or no sleep. To do well in an exam, adequate sleep must be part of the preparation.

The importance of sleep is often overlooked by students when they are preparing for exams. Research has consistently shown that sleep deprivation greatly reduces the abil...

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

1 answer

45

GATE Electrical 2021 | GA Question: 7
In the figure shown above, each inside square is formed by joining the midpoints of the sides of the next larger square. The area of the smallest square (shaded) as shown, in $\text{cm}^{2}$ is: $12.50$ $6.25$ $3.125$ $1.5625$

In the figure shown above, each inside square is formed by joining the midpoints of the sides of the next larger square. The area of the smallest square (shaded) as shown...

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

1 answer

46

GATE Electrical 2021 | GA Question: 8
Let $X$ be a continuous random variable denoting the temperature measured. The range of temperature is $[0, 100]$ degree Celsius and let the probability density function of $X$ be $f\left ( x \right )=0.01$ for $0\leq X\leq 100$. The mean of $X$ is __________ $2.5$ $5.0$ $25.0$ $50.0$

Let $X$ be a continuous random variable denoting the temperature measured. The range of temperature is $[0, 100]$ degree Celsius and let the probability density function ...

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

1 answer

47

GATE Electrical 2021 | GA Question: 10
Seven cars $\text{P, Q. R, S, T, U and V}$ are parked in a row not necessarily in that order. The cars $T$ and $U$ should be parked next to each other. The cars $S$ and $V$ also should be parked next to each other, whereas $P$ and $Q$ ... and $R$ are not parked together. $V$ is the only car parked in between $S$ and $R$. Car $P$ is parked at the extreme end.

Seven cars $\text{P, Q. R, S, T, U and V}$ are parked in a row not necessarily in that order. The cars $T$ and $U$ should be parked next to each other. The cars $S$ and $...

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

0 answers

48

GATE Electrical 2021 | Question: 37
A counter is constructed with three $D$ flip-flops. The input-output pairs are named $(D_{0},\:Q_{0})$, $(D_{1},\:Q_{1})$ and $(D_{2},\:Q_{2})$, where the subscript $0$ denotes the least significant bit. The output sequence is desired to be the Gray- ... $\overline{Q_{2}}Q_{0}+Q_{1}\overline{Q_{0}}$ $Q_{2}Q_{1}+\overline{Q_{2}}\:\overline{Q_{1}}$

A counter is constructed with three $D$ flip-flops. The input-output pairs are named $(D_{0},\:Q_{0})$, $(D_{1},\:Q_{1})$ and $(D_{2},\:Q_{2})$, wher...

Arjun

15.9k points

Arjun asked Feb 19, 2021

1 votes

1 answer

49

GATE Electrical 2020 | GA Question: 2
People were prohibited_____their vehicles near the entrance of the main administrative building. to park from parking parking to have parked

People were prohibited_____their vehicles near the entrance of the main administrative building.to parkfrom parkingparkingto have parked

go_editor

1.9k points

go_editor asked Feb 28, 2020

1 votes

1 answer

50

GATE Electrical 2020 | GA Question: 3
Select the word that fits the analogy: Do : Undo :: Trust : ______ Entrust Intrust Distrust Untrust

Select the word that fits the analogy:Do : Undo :: Trust : ______EntrustIntrustDistrustUntrust

go_editor

1.9k points

go_editor asked Feb 28, 2020

1 votes

1 answer

51

GATE Electrical 2020 | GA Question: 9
Given a semicircle with $\text{O}$ as the centre, as shown in the figure, the ratio $\dfrac{\overline{AC}+\overline{CB}}{\overline{AB}}$ is _______, where $\overline{AC}$, $\overline{CB}$ and $\overline{AB}$ are chords. $\sqrt{2}$ $\sqrt{3}$ $2$ $3$

Given a semicircle with $\text{O}$ as the centre, as shown in the figure, the ratio $\dfrac{\overline{AC}+\overline{CB}}{\overline{AB}}$ is _______, where $\overline{AC}$...

go_editor

1.9k points

go_editor asked Feb 28, 2020

1 votes

2 answers

52

GATE Electrical 2020 | GA Question: 10
The revenue and expenditure of four different companies $\text{P, Q, R and S}$ in $2015$ are shown in the figure. If the revenue of company $\text{Q}$ in $2015$ was $20$% more than that in $2014$, and company $\text{Q}$ had earned a profit of ... expenditure in $2014$, then its expenditure (in million rupees) in $2014$ was _______. $32.7$ $33.7$ $34.1$ $35.1$

The revenue and expenditure of four different companies $\text{P, Q, R and S}$ in $2015$ are shown in the figure. If the revenue of company $\text{Q}$ in $2015$ was $20$%...

go_editor

1.9k points

go_editor asked Feb 28, 2020

1 votes

0 answers

53

GATE Electrical 2020 | Question: 6
$x_{R}$ and $x_{A}$ are, respectively, the rms and average values of $x\left ( t \right )=x\left ( t-T \right ),$ and similarly, $y_{R}$ and $y_{A}$ are, respectively, the rms and average values of $y\left ( t \right )=kx\left ( t \right ).\:k,T$ are independent of ... $y_{A}\neq kx_{A} ;\:y_{R}= kx_{R}$ $y_{A}\neq kx_{A} ;\:y_{R}\neq kx_{R}$

$x_{R}$ and $x_{A}$ are, respectively, the rms and average values of $x\left ( t \right )=x\left ( t-T \right ),$ and similarly, $y_{R}$ and $y_{A}$ are, respectively, th...

go_editor

1.9k points

go_editor asked Feb 28, 2020

1 votes

1 answer

54

GATE Electrical 2020 | Question: 20
A double pulse measurement for an inductively loaded circuit controlled by the $\text{IGBT}$ switch is carried out to evaluate the reverse recovery characteristics of the diode, $\text{D}$, represented approximately as a piecewise linear plot of current vs time ... $4$) at which the $\text{IGBT}$ experiences the highest current stress is _________.

A double pulse measurement for an inductively loaded circuit controlled by the $\text{IGBT}$ switch is carried out to evaluate the reverse recovery characteristics of the...

go_editor

1.9k points

go_editor asked Feb 28, 2020

1 votes

1 answer

55

GATE Electrical 2019 | GA Question: 10
Consider five people- Mita, Ganga, Rekha, Lakshmi, and Sana. Ganga is taller than both Rekha and Lakshmi. Lakshmi is taller than Sana. Mita is taller than Ganga. Which of the following conclusions are true? Lakshmi is taller than Rekha Rekha is shorter than Mita Rekha is taller than Sana Sana is shorter than Ganga $1$ and $3$ $3$ only $2$ and $4$ $1$ only

Consider five people- Mita, Ganga, Rekha, Lakshmi, and Sana. Ganga is taller than both Rekha and Lakshmi. Lakshmi is taller than Sana. Mita is taller than Ganga.Which of ...

Arjun

15.9k points

Arjun asked Feb 12, 2019

1 votes

0 answers

56

Gate EE-2014
For a peridic square wave ,which one of the following statements is TRUE? 1). The fourieF series coefficients do not exist 2).The Fourier series coefficients exist but the reconstruction converges at most point. I know the correct answer is 2). But I need some explanation.

For a peridic square wave ,which one of the following statements is TRUE?1). The fourieF series coefficients do not exist2).The Fourier series coefficients exist but the ...

Shaurya khare

130 points

Shaurya khare asked Jul 8, 2018

1 votes

0 answers

57

GATE Electrical 2012 | Question: 61
$A$ and $B$ are friends. They decide to meet between $1:00$ pm and $2:00$ pm on a given day. There is a condition that whoever arrives first will not wait for the other for more than $15$ minutes. The probability that they will meet on that day is $1/4$ $1/16$ $7/16$ $9/16$

$A$ and $B$ are friends. They decide to meet between $1:00$ pm and $2:00$ pm on a given day. There is a condition that whoever arrives first will not wait for the other f...

Andrijana3306

1.4k points

Andrijana3306 asked Mar 23, 2018

1 votes

1 answer

58

GATE Electrical 2017 Set 2 | Question: 1
An urn contains $5$ red balls and $5$ black balls. In the first draw, one ball is picked at random and discarded without noticing its colour. The probability to get a Red ball in the second draw is $\frac{1}{2} \\$ $\frac{4}{9} \\$ $\frac{5}{9} \\$ $\frac{6}{9} $

An urn contains $5$ red balls and $5$ black balls. In the first draw, one ball is picked at random and discarded without noticing its colour. The probability to get a Red...

Arjun

15.9k points

Arjun asked Feb 26, 2017

1 votes

0 answers

59

GATE Electrical 2013 | Question: 50
The state variable formulation of a system is given as ... The system is controllable but not observable not controllable but observable both controllable and observable both not controllable and not observable

The state variable formulation of a system is given as$\begin{bmatrix} x^\cdot_1 \\ x^\cdot_2 \end{bmatrix}=\begin{bmatrix} -2 & 0\\ 0 & -1 \end{bmatrix}\begin{bmatrix} x...

piyag476

1.6k points

piyag476 asked Feb 11, 2017

1 votes

0 answers

60

GATE Electrical 2013 | Question: 49
In the figure shown below, the chopper feeds a resistive load from a battery source. $MOSFET\: Q$ is switched at $250 kHz$ with a $\text{duty ratio}$ of $0.4$. All elements of the circuit are assumed to be ideal. The PEAK-TO-PEAK source current ripple in $Amps$ is $0.96$ $0.144$ $0.192$ $0.288$

In the figure shown below, the chopper feeds a resistive load from a battery source. $MOSFET\: Q$ is switched at $250 kHz$ with a $\text{duty ratio}$ of $0.4$. All elemen...

piyag476

1.6k points

piyag476 asked Feb 11, 2017

1 votes

0 answers

61

GATE Electrical 2013 | Question: 42
Two magnetically uncoupled inductive coils have $Q$ factors $q_1$ and $q_2$ at the chosen operating frequency. Their respective resistances are $R_1$ and $R_2$. When connected in series, their effective $Q$ factor at the same operating frequency is $q_1R_1+q_2R_2$ $q_1/R_1+q_2/R_2$ $\big(q_1R_1+q_2R_2\big)/\big(R_1+R_2\big)$ $q_1R_2+q_2R_2$

Two magnetically uncoupled inductive coils have $Q$ factors $q_1$ and $q_2$ at the chosen operating frequency. Their respective resistances are $R_1$ and $R_2$. When conn...

piyag476

1.6k points

piyag476 asked Feb 11, 2017

1 votes

0 answers

62

GATE Electrical 2013 | Question: 22
Three moving iron type voltmeters are connected as shown below. Voltmeter readings are $V$, $V1$ and $V2$ , as indicated. The correct relation among the voltmeter readings is $V=\dfrac{V1}{\sqrt{2}}+\dfrac{V2}{\sqrt{2}}$ $V =V_1 +V_2$ $V =V_1V_2$ $V =V_2 - V_1$

Three moving iron type voltmeters are connected as shown below. Voltmeter readings are $V$, $V1$ and $V2$ , as indicated. The correct relation among the voltmeter reading...

piyag476

1.6k points

piyag476 asked Feb 11, 2017

1 votes

0 answers

63

GATE Electrical 2013 | Question: 12
The curl of the gradient of the scaler field defined by $V=2x^2y+3y^2z+4z^2x$ is $4xy \textbf{a}_x+6yz \textbf{a}_y+8zx \textbf{a}_z$ $4 \textbf{a}_x+6\textbf{a}_y+8 \textbf{a}_z$ $(4xy+4z^2) \textbf{a}_x+(2x^2+6yz) \textbf{a}_y+(3y^2+8zx) \textbf{a}_z$ $0$

The curl of the gradient of the scaler field defined by $V=2x^2y+3y^2z+4z^2x$ is$4xy \textbf{a}_x+6yz \textbf{a}_y+8zx \textbf{a}_z$$4 \textbf{a}_x+6\textbf{a}_y+8 \textb...

piyag476

1.6k points

piyag476 asked Feb 11, 2017

1 votes

1 answer

64

GATE Electrical 2014 Set 2 | Question: 1
Which one of the following statements is true for all real symmetric matrices? All the eigenvalues are real. All the eigenvalues are positive. All the eigenvalues are distinct. Sum of all the eigenvalues is zero.

Which one of the following statements is true for all real symmetric matrices?All the eigenvalues are real.All the eigenvalues are positive.All the eigenvalues are distin...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

1 votes

0 answers

65

GATE Electrical 2014 Set 1 | Question: 27
A fair coin is tossed $n$ times. The probability that the difference between the number of heads and tails is $(n-3)$ is $2^{-n}$ $0$ $^{n}C_{n-3}2^{-n}$ $2^{-n+3}$

A fair coin is tossed $n$ times. The probability that the difference between the number of heads and tails is $(n-3)$ is$2^{-n}$$0$$^{n}C_{n-3}2^{-n}$$2^{-n+3}$

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

1 votes

1 answer

66

GATE Electrical 2015 Set 2 | Question: 38
A Boolean function $f(A, B, C, D) = \prod (1,5,12,15)$ is to be implemented using an $8 \times 1$ multiplexer ($A$ is $MSB$). The inputs $ABC$ are connected to the select inputs $S_{2} S_{1} S_{0}$ of the multiplexer respectively. Which one of the following ... $D, 1, D, 1, 1, 1, \overline{D}, D$ $\overline{D}, 0, \overline{D}, 0, 0, 0,D, \overline{D}$

A Boolean function $f(A, B, C, D) = \prod (1,5,12,15)$ is to be implemented using an $8 \times 1$ multiplexer ($A$ is $MSB$). The inputs $ABC$ are connected to the selec...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

1 votes

0 answers

67

GATE Electrical 2015 Set 1 | Question: 37
The figure shows a digital circuit constructed using negative edge triggered $J-K$ flip flops. Assume a starting state of $Q_{2}Q_{1}Q_{0}=000$. This state $Q_{2}Q_{1}Q_{0}=000$ will repeat after _______ number of cycles of the clock $CLK$.

The figure shows a digital circuit constructed using negative edge triggered $J-K$ flip flops. Assume a starting state of $Q_{2}Q_{1}Q_{0}=000$. This state $Q_{2}Q_{1}Q_{...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

1 votes

0 answers

68

GATE Electrical 2015 Set 1 | Question: 15
In the $4 \times 1$ multiplexer, the output $F$ is given by $F = A \oplus B$. Find the required input $'I_{3}, I_{2}, I_{1}, I_{0}'$. $1010$ $0110$ $1000$ $1110$

In the $4 \times 1$ multiplexer, the output $F$ is given by $F = A \oplus B$. Find the required input $'I_{3}, I_{2}, I_{1}, I_{0}'$.$1010$$0110$$1000$$1110$

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

1 votes

0 answers

69

GATE Electrical 2016 Set 2 | Question: 38
The single line diagram of a balanced power system is shown in the figure. The voltage magnitude at the generator internal bus is constant and $1.0$ p.u. The p.u. reactances of different components in the system are ... transferred during the pre-fault condition to the maximum real power that can be transferred under the faulted condition is _________.

The single line diagram of a balanced power system is shown in the figure. The voltage magnitude at the generator internal bus is constant and $1.0$ p.u. The p.u. reactan...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Jan 29, 2017

0 votes

1 answer

70

GATE Electrical 2024 | Question: 1
Which one of the following matrices has an inverse? $\left[\begin{array}{ccc}1 & 4 & 8 \\ 0 & 4 & 2 \\ 0.5 & 2 & 4\end{array}\right]$ ... $\left[\begin{array}{ccc}1 & 4 & 8 \\ 0 & 4 & 2 \\ 3 & 12 & 24\end{array}\right]$

Which one of the following matrices has an inverse?$\left[\begin{array}{ccc}1 & 4 & 8 \\ 0 & 4 & 2 \\ 0.5 & 2 & 4\end{array}\right]$$\left[\begin{array}{lll}1...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

71

GATE Electrical 2024 | Question: 3
All the elements in the circuit are ideal. The power delivered by the $10 \mathrm{~V}$ source in watts is $0$ $50$ $100$ dependent on the value of $\alpha$

All the elements in the circuit are ideal. The power delivered by the $10 \mathrm{~V}$ source in watts is$0$$50$$100$dependent on the value of $\alpha$

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

72

GATE Electrical 2024 | Question: 4
The circuit shown in the figure with the switch $\text{S}$ open, is in steady state. After the switch $\text{S}$ is closed, the time constant of the circuit in seconds is $1.25$ $0$ $1$ $1.5$

The circuit shown in the figure with the switch $\text{S}$ open, is in steady state. After the switch $\text{S}$ is closed, the time constant of the circuit in seconds...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

73

GATE Electrical 2024 | Question: 5
Suppose signal $y(t)$ is obtained by the time-reversal of signal $x(t)$, i.e., $y(t)=x(-t),-\infty<t<\infty$. Which one of the following options is always true for the convolution of $x(t)$ and $y(t)$? It is an even signal. It is an odd signal. It is a causal signal. It is an anti-causal signal.

Suppose signal $y(t)$ is obtained by the time-reversal of signal $x(t)$, i.e., $y(t)=x(-t),-\infty<t<\infty$. Which one of the following options is always true for the co...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

74

GATE Electrical 2024 | Question: 6
If $u(t)$ is the unit step function, then the region of convergence $\text{(ROC)}$ of the Laplace transform of the signal \[ x(t)=e^{t^{2}}[u(t-1)-u(t-10)] \] is $-\infty<\operatorname{Re}(s)<\infty$ $\operatorname{Re}(s) \geq 10$ $\operatorname{Re}(s) \leq 1$ $1 \leq \operatorname{Re}(s) \leq 10$

If $u(t)$ is the unit step function, then the region of convergence $\text{(ROC)}$ of the Laplace transform of the signal\[x(t)=e^{t^{2}}[u(t-1)-u(t-10)]\]...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

75

GATE Electrical 2024 | Question: 7
A three phase, $50 \mathrm{~Hz}, 6$ pole induction motor runs at $960 \mathrm{rpm}$. The stator copper loss, core loss, and the rotational loss of the motor can be neglected. The percentage efficiency of the motor is $92$ $94$ $96$ $98$

A three phase, $50 \mathrm{~Hz}, 6$ pole induction motor runs at $960 \mathrm{rpm}$. The stator copper loss, core loss, and the rotational loss of the moto...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

76

GATE Electrical 2024 | Question: 8
Which one of the following options represents possible voltage polarities in a single phase two winding transformer? Here, $V_{p}$ is the applied primary voltage, $E_{p}$ is the induced primary voltage, $V_{s}$ is the open circuit secondary voltage, and $E_{s}$ is the induced secondary voltage.

Which one of the following options represents possible voltage polarities in a single phase two winding transformer? Here, $V_{p}$ is the applied primary voltage...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

77

GATE Electrical 2024 | Question: 9
The figure shows the single line diagram of a 4-bus power network. Branches $b_{1}$, $b_{2}, b_{3}$, and $b_{4}$ have impedances $4 z, z, 2 z$, and $4 z$ per-unit (pu), respectively, where $z=r+j x$, with $r>0$ and $x>0$. The ... $b_{1}$ $b_{2}$ $b_{3}$ $b_{4}$

The figure shows the single line diagram of a 4-bus power network. Branches $b_{1}$, $b_{2}, b_{3}$, and $b_{4}$ have impedances $4 z, z, 2 z$, and $4 z$ p...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

78

GATE Electrical 2024 | Question: 10
For the block-diagram shown in the figure, the transfer function $\frac{C(s)}{R(s)}$ is $\frac{G(s)}{1+2 G(s)}$ $-\frac{G(s)}{1+2 G(s)}$ $\frac{G(s)}{1-2 G(s)}$ $-\frac{G(s)}{1-2 G(s)}$

For the block-diagram shown in the figure, the transfer function $\frac{C(s)}{R(s)}$ is$\frac{G(s)}{1+2 G(s)}$$-\frac{G(s)}{1+2 G(s)}$$\frac{G(s)}{1-2 G(s)}$$...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

79

GATE Electrical 2024 | Question: 11
Consider the standard second-order system of the form $\frac{\omega_{n}^{2}}{s^{2}+2 \zeta \omega_{n} s+\omega_{n}^{2}}$ with the poles $p$ and $p^{*}$ having negative real parts. The pole locations are also shown ... is more than that of System $1$. Settling times of both the systems are the same. Settling time cannot be computed from the given information.

Consider the standard second-order system of the form $\frac{\omega_{n}^{2}}{s^{2}+2 \zeta \omega_{n} s+\omega_{n}^{2}}$ with the poles $p$ and $p^{*}$ hav...

Arjun

15.9k points

Arjun asked Feb 16

0 votes

0 answers

80

GATE Electrical 2024 | Question: 12
Consider the cascaded system as shown in the figure. Neglecting the faster component of the transient response, which one of the following options is a firstorder pole-only approximation such that the steady-state values of the unit step responses of the original and the approximated systems ... $\frac{2}{s+1}$ $\frac{1}{s+20}$ $\frac{2}{s+20}$

Consider the cascaded system as shown in the figure. Neglecting the faster component of the transient response, which one of the following options is a firsto...

Arjun

15.9k points

Arjun asked Feb 16