Hot questions - GO Electrical

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1

GATE2020-EE-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 at diode turn ... entering $1, 2, 3, or\:4$) at which the $\text{IGBT}$ experiences the highest current stress is _________.

asked Feb 28 in new by jothee (1.4k points)

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2

GATE2020-EE-53
The temperature of the coolant oil bath for a transformer is monitored using the circuit shown. It contains a thermistor with a temperature-dependent resistance, $R_{thermistor}=2\left ( 1+\alpha\:T \right )k\Omega$, where $\text{T}$ is the temperature in $^{\circ}C$. ... error in the output signal (in $\text{V}$ , rounded off to $2$ decimal places) at $150^{\circ}C$ is ____________.

asked Feb 28 in new by jothee (1.4k points)

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3

GATE2020-EE-25
The cross-section of a metal-oxide-semiconductor structure is shown schematically. Starting from an uncharged condition, a bias of $\text{+3 V}$ is applied to the gate contact with respect to the body contact. The charge inside the silicon dioxide layer is ... of bias, expressed as a multiple of $\text{Q}$ (absolute value in Coulombs, rounded off to the nearest integer) is___________

asked Feb 28 in new by jothee (1.4k points)

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4

GATE2020-EE-8
A lossless transmission line with $0.2$ $\text{pu}$ reactance per phase uniformly distributed along the length of the line, connecting a generator bus to a load bus, is protected up to $80$% of its length by a distance relay placed at the generator bus. The generator terminal ... a solid three phase-to- ground fault on the transmission line is closest to: $1.00$ $3.61$ $5.00$ $6.25$

asked Feb 28 in new by jothee (1.4k points)

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5

GATE2020-EE-GA-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 $10$% on expenditure in $2014$, then its expenditure (in million rupees) in $2014$ was _______. $32.7$ $33.7$ $34.1$ $35.1$

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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6

GATE2020-EE-12
Thyristor $T_{1}$ is triggered at an angle $\alpha$ (in degree), and $T_{2}$ at angle $180^{\circ}+\alpha$, in each cycle of the sinusoidal input voltage. Assume both thyristors to be ideal. To control the load power over the range $0$ to $\text{2 k W}$, the minimum range of ... $0^{\circ}\:to\:120^{\circ}$ $60^{\circ}\:to\:120^{\circ}$ $60^{\circ}\:to\:180^{\circ}$

asked Feb 28 in new by jothee (1.4k points)

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7

GATE2020-EE-7
A three-phase cylindrical rotor synchronous generator has a synchronous reactance $X_{s}$ and a negligible armature resistance. The magnitude of per phase terminal voltage is $V_{A}$ and the magnitude of per phase induced emf is $E_{A}$ ... $\text{P is false and Q is false}$. $\text{P is true and Q is true}$.

asked Feb 28 in new by jothee (1.4k points)

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8

GATE2020-EE-1
$ax^{3}+bx^{2}+cx+d$ is a polynomial on real $\text{x}$ over real coefficients $\text{a, b, c, d}$ wherein $a\neq 0.$ Which of the following statements is true? $\text{d}$ can be chosen to ensure that $\text{x = 0}$ is a root for any given set ... identical. $\text{a, b, c, d}$ can be chosen to ensure that all roots are complex. $\text{c}$ alone cannot ensure that all roots are real.

asked Feb 28 in new by jothee (1.4k points)

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9

GATE2020-EE-37
Suppose for input $x(t)$ a linear time-invariant system with impulse response $h(t)$ produces output $y(t)$,so that $x\left ( t \right )*h\left ( t \right )=y\left ( t \right )$ ... $t\:\in \left ( -\infty, \infty \right ),z\left ( t \right )\geq y\left ( t \right )$

asked Feb 28 in new by jothee (1.4k points)

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10

GATE2020-EE-GA-8
In four-digit integer numbers from $1001$ to $9999$, the digit group $\text{“37”}$ (in the same sequence) appears ________ times. $270$ $279$ $280$ $299$

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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11

GATE2020-EE-GA-7
Select the next element of the series: $\text{Z, WV , RQP,}$ _____ $\text{LKJI}$ $\text{JIHG}$ $\text{KJIH}$ $\text{NMLK}$

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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12

GATE2020-EE-GA-6
Non-performing Assets $\text{(NPAs)}$ of a bank in India is defined as an asset, which remains unpaid by a borrower for a certain period of time in terms of interest, principal, or both.Reserve Bank of India $\text{(RBI)}$ ... paragraph, the holding period of loans in $\text{2004}$ after the third revision was ______ days. $45$ $90$ $135$ $180$

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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13

GATE2020-EE-GA-4
Stock markets _______ at the news of the coup. poised plunged plugged probed

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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14

GATE2020-EE-GA-3
Select the word that fits the analogy: Do : Undo :: Trust : ______ Entrust Intrust Distrust Untrust

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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15

GATE2020-EE-GA-2
People were prohibited_____their vehicles near the entrance of the main administrative building. to park from parking parking to have parked

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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16

GATE2020-EE-GA-1
This book, including all its chapters,_______interesting. The students as well as the instructor_______in agreement about it. is, was are, are is, are were, was

asked Feb 28 in Numerical Ability by jothee (1.4k points)

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17

GATE2020-EE-55
A conducting square loop of side length $1\:m$ is placed at a distance of $1\:m$ from a long straight wire carrying a current $I = 2 A$ as shown below. The mutual inductance, in $nH$ (rounded off to $2$ decimal places), between the conducting loop and the long wire is __________.

asked Feb 28 in new by jothee (1.4k points)

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18

GATE2020-EE-48
Windings $\text{ A','B' and C'}$ have $20$ turns each and are wound on the same iron core as shown, along with winding $\text{ X'}$ which has $2$ turns. The figure shows the sense (clockwise/anti-clockwise) of each of the windings only and does not ... -load $\text{RMS}$ voltage (in $\text{V}$, rounded off to $2$ decimal places) across winding $\text{ X'}$ is _______________.

asked Feb 28 in Others by jothee (1.4k points)

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19

GATE2020-EE-29
Two buses, $\text{i and j}$, are connected with a transmission line admittance $\text{y}$ ...

asked Feb 28 in new by jothee (1.4k points)

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20

GATE2020-EE-28
A $\text{250 V}$ dc shunt motor has an armature resistance of $0.2\:\Omega$ and a field resistance of $100\:\Omega$. When the motor is operated on no-load at rated voltage, it draws an armature current of $\text{5 A}$ and runs at $\text{1200 rpm}$ ... operating conditions. The speed of the motor, in $\text{rpm}$ under this loaded condition, is closest to: $1200$ $1000$ $1220$ $900$

asked Feb 28 in new by jothee (1.4k points)