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Recent questions tagged gate2014ee3
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GATE Electrical 2014 Set 3  Question: 53
A threephase fully controlled bridge converter is fed through stardelta transformer as shown in the figure. The converter is operated at a firing angle of $300$. Assuming the load current $(I_0)$ to be virtually constant at $1 \: p.u$. and transformer to be an ideal one, the input phase current waveform is
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Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
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9.3k
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gate2014ee3
starconnection
deltaconnection
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0
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2
GATE Electrical 2014 Set 3  Question: 50
The transfer characteristic of the Opamp circuit shown in figure is
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
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9.3k
points)
gate2014ee3
transfercharacteristics
operationalamplifier
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0
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3
GATE Electrical 2014 Set 3  Question: 52
A hysteresis type $TTL$ inverter is used to realize an oscillator in the circuit shown in the figure. If the lower and upper trigger level voltages are $0.9$ $V$ and $1.7$ $V$, the period (in $ms$), for which output is $LOW$, is __________.
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
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9.3k
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gate2014ee3
triggerlevel
oscillator
numericalanswers
0
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0
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4
GATE Electrical 2014 Set 3  Question: 51
A $3$$bit$ gray counter is used to control the output of the multiplexer as shown in the figure. The initial state of the counter is $0002$. The output is pulled $high$. The output of the circuit follows the sequence $I_0$, $1$, $1$, $I_1$, $I_3$, $1$, $1$, $I_2$ ... $1$, $I_1$, $I_2$, $1$, $I_3$,$1$ $I_0$, $I_1$, $I_2$, $I_3$, $I_0$, $I_1$, $I_2$, $I_3$
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
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9.3k
points)
gate2014ee3
binarycode
counter
multiplexer
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0
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5
GATE Electrical 2014 Set 3  Question: 54
A diode circuit feeds an ideal inductor as shown in the figure. Given $v_s=100 \sin(w_t) \: V$ where $\omega = 100\pi \text{ rad/s}$, and $L=31.83 \: mH$. The initial value of inductor current is zero. Switch $S$ is closed at $t=2.5 \: ms$. The peak value of inductor current $i_L$ (in $A$) in the first cycle is ________.
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Feb 12, 2017
in
Electric Circuits
by
makhdoom ghaya
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9.3k
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gate2014ee3
timeresponse
peakvalue
numericalanswers
0
votes
0
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6
GATE Electrical 2014 Set 3  Question: 55
A singlephase voltage source inverter shown in figure is feeding power to a load. The triggering pulses of the devices are also shown in the figure. If the load current is sinusoidal and is zero at $0,\pi , 2\pi$ …, the node voltage $V_{AO}$ has the waveform
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
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9.3k
points)
gate2014ee3
pulses
invertor
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0
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7
GATE Electrical 2014 Set 3  Question: 48
In the bridge circuit shown, the capacitors are loss free. At balance, the value of capacitance $C_1$ in microfarad is _________.
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
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9.3k
points)
gate2014ee3
bridgecircuit
source
numericalanswers
0
votes
0
answers
8
GATE Electrical 2014 Set 3  Question: 49
Two monoshot multivibrators, one positive edge triggered $(M_1)$ and another negative edge triggered $(M_2)$, are connected as shown in figure The monoshots $M_1$ and $M_2$ when triggered produce pulses of width $T_1$ and $T_2$ respectively, where $T_1>T_2$. The steady state output voltage $v_0$ of the circuit is
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
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9.3k
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gate2014ee3
multivibrator
edgetriggered
0
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0
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9
GATE Electrical 2014 Set 3  Question: 47
A periodic waveform observed across a load is represented by $V(t)=\begin{cases} 1+\sin\omega t & 0\leq \omega t< 6\pi \\ 1+ \sin\omega t & 6\pi \leq \omega t< 12\pi \end{cases}$ The measured value, using moving iron voltmeter connected across the load, is $\sqrt{\dfrac{3}{2}} \\$ $\sqrt{\dfrac{2}{3}} \\$ $\dfrac{3}{2} \\$ $\dfrac{2}{3}$
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Feb 12, 2017
in
Electric Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
waveforms
periodicfunctions
0
votes
0
answers
10
GATE Electrical 2014 Set 3  Question: 44
The block diagram of a system is shown in the figure If the desired transfer function of the system is $\dfrac{C(s)}{R(s)}=\dfrac{s}{s^2+s+1}$ then $G(s)$ is $1$ $s$ $1/s$ $\dfrac{s}{s^3+s^2s2}$
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
feedback
closedloopsystem
0
votes
0
answers
11
GATE Electrical 2014 Set 3  Question: 43
The figure shows the single line diagram of a single machine infinite bus system. The inertia constant of the synchronous generator $H = 5 \: MWs/MVA$. Frequency is $50 \: Hz$. Mechanical power is $1 \: pu$. The system is operating at the stable ... $3.762 \text{ radian/s}$ respectively, then $P_{\text{max}}$ (in $pu$) is _______.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
linediagrams
faultanalysis
numericalanswers
0
votes
0
answers
12
GATE Electrical 2014 Set 3  Question: 42
The complex power consumed by a constantvoltage load is given by $(P_1+jQ_1)$, where, $1 \: kW \leq P_1 \leq 1.5 \text{ kW}$ and $0.5 \: \text{kVAR} \leq Q_1 \leq 1 \text{ kVAR}$. A compensating shunt ... is the net reactive power consumed by the capacitorload combination. The reactive power (in $\text{kVAR}$) supplied by the capacitor is _________.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
capacitorloadcombination
numericalanswers
0
votes
0
answers
13
GATE Electrical 2014 Set 3  Question: 40
The parameters measured for a $220V/110V$, $50 \: Hz$, singlephase transformer are: Self inductance of primary winding $= 45 \: mH$ Self inductance of secondary winding $= 30 \: mH$ Mutual inductance between primary and secondary windings $= 20 \: mH$ Using the above parameters, ... $10 \: mH$ and $20 \: mH$ $45 \: mH$, $30 \: mH$ and $20 \: mH$
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
stepdowntransformer
corelosses
0
votes
0
answers
14
GATE Electrical 2014 Set 3  Question: 41
For a $400$ $km$ long transmission line, the series impedance is ($0.0$ + $j0.5$) $Ω/km$ and the shunt admittance is ($0.0$ + $j5.0$) $μmho$/$km$. The magnitude of the series impedance (in $\Omega$) of the equivalent $\pi$ circuit of the transmission line is ________.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
long
transmission
line
series
impedance
numericalanswers
0
votes
0
answers
15
GATE Electrical 2014 Set 3  Question: 39
The load shown in the figure absorbs $4$ $kW$ at a power factor of $0.89$ lagging. Assuming the transformer to be ideal, the value of the reactance $X$ to improve the input power factor to unity is ___________.
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
losslesstransformer
transformationratio
numericalanswers
0
votes
0
answers
16
GATE Electrical 2014 Set 3  Question: 46
The magnitude Bode plot of a network is shown in the figure The maximum phase angle $\phi _m$ and the corresponding gain $G_m$ respectively, are $30^{\circ}$ and $1.73$ $dB$ $30^{\circ}$ and $477$ $dB$ $+30^{\circ}$ and $4.77$ $dB$ $+30^{\circ}$ and $1.73$ $dB$
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
bodeplot
stability
0
votes
0
answers
17
GATE Electrical 2014 Set 3  Question: 45
Consider the system described by following state space equations $\begin{vmatrix} \dot{x_1}\\ \dot{x_2} \end{vmatrix}=\begin{vmatrix} 0 &1 \\ 1 & 1 \end{vmatrix}\begin{vmatrix} x_1\\x_2 \end{vmatrix}+\begin{vmatrix} 0\\1 \end{vmatrix}u$ ... $u$ is unit step input, then the steady state error of the system is $0$ $1/2$ $2/3$ $1$
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
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gate2014ee3
statespacefunctions
steadystateerror
0
votes
0
answers
18
GATE Electrical 2014 Set 3  Question: 38
A separately excited $300$ $V$ $DC$ shunt motor under no load runs at $900$ $rpm$ drawing an armature current of $2$ $A$. The armature resistance is $0.5$ $Ω$ and leakage inductance is $0.01$ $H$. When loaded, the armature current is $15$ $A$. Then the speed in $rpm$ is _____
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
seriesconnection
synchronousspeed
numericalanswers
0
votes
0
answers
19
GATE Electrical 2014 Set 3  Question: 36
An open circuit test is performed on $50$ $Hz$ transformer, using variable frequency source and keeping $V/f$ ratio constant, to separate its eddy current and hysteresis losses. The variation of core loss/frequency as function of frequency is shown in the figure The hysteresis and eddy ... $62.5$ $W$ $312.5$ $W$ and $62.5$ $W$ $312.5$ $W$ and $250$ $W$
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
corelosses
opencircuittest
0
votes
0
answers
20
GATE Electrical 2014 Set 3  Question: 34
A sinusoid $x(t)$ of unknown frequency is sampled by an impulse train of period $20$ $ms$. The resulting sample train is next applied to an ideal lowpass filter with a cutoff at $25$ $Hz$. The filter output is seen to be a sinusoid of frequency $20$ $Hz$. This means that $x(t)$ has a frequency of $10$ $Hz$ $60$ $Hz$ $30$ $Hz$ $90$ $Hz$
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Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
impulsetrain
lowpassfilter
0
votes
1
answer
21
GATE Electrical 2014 Set 3  Question: 30
The power delivered by the current source, in the figure, is ________.
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Feb 12, 2017
in
Electric Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
currentsource
negativepower
numericalanswers
0
votes
0
answers
22
GATE Electrical 2014 Set 3  Question: 37
A nonsalient pole synchronous generator having synchronous reactance of $0.8$ $pu$ is supplying $1$ $pu$ power to a unity power factor load at a terminal voltage of $1.1$ $pu$. Neglecting the armature resistance, the angle of the voltage behind the synchronous reactance with respect to the angle of the terminal voltage in degrees is ________.
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
pitchfactor
distributionfactor
numericalanswers
0
votes
0
answers
23
GATE Electrical 2014 Set 3  Question: 27
The mean thickness and variance of silicon steel laminations are $0.2 mm$ and $0.02$ respectively. The varnish insulation is applied on both the sides of the laminations. The mean thickness of one side insulation and its variance are$0.1 \: mm$ and $0.01$ respectively. If the ... $0.22$ $30 \: mm$ and $2.44$ $40 \: mm$ and $2.44$ $40\: mm$ and $0.24$
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
insulation
core
0
votes
0
answers
24
GATE Electrical 2014 Set 3  Question: 28
The function $f(x)=e^x1$ is to be solved using NewtonRaphson method. If the initial value of $x_0$ is taken as $1.0$, then the absolute error observed at $2^{nd}$ iteration is _______.
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Feb 12, 2017
in
Numerical Methods
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
numericalmethods
newtonraphsonmethod
0
votes
0
answers
25
GATE Electrical 2014 Set 3  Question: 32
A series $RLC$ circuit is observed at two frequencies. At $ω_1=1 \text{ krad/s}$, we note that source voltage $V_1=100\angle 0^{\circ} \: V$ results in a current $I_1=0.03\angle 31^{\circ}$ $A$. At $w_2=2 \text{ krad/s}$ ... $R=50\Omega$ ; $L=50 mH$ ,$C=5 \mu F$ $R=50\Omega$ ; $L=5 mH$ ,$C=50 \mu F$
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Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
rcfilter
rlfilter
0
votes
0
answers
26
GATE Electrical 2014 Set 3  Question: 33
A continuoustime $LTI$ system with system function $H(w)$ has the following polezero plot. For this system, which of the alternatives is $TRUE$? $\mid H(0)\mid > \mid H(w)\mid ;\mid w\mid > 0$ $\mid H(w) \mid$ has multiple maxima, at $w_1$ ... $\mid H(w)\mid =$ constant; $\infty < w< \infty$
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Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
polezeroplot
lineartimeinvariantsystem
0
votes
0
answers
27
GATE Electrical 2014 Set 3  Question: 29
The Norton’s equivalent source in amperes as seen into the terminals $X$ and $Y$ is _______.
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Feb 12, 2017
in
Electric Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
thevenins
theorem
nortonstheorem
numericalanswers
0
votes
0
answers
28
GATE Electrical 2014 Set 3  Question: 35
A differentiable non constant even function $x(t)$ has a derivative $y(t)$, and their respective Fourier Transforms are $X(\omega)$ and $Y(\omega)$. Which of the following statements is TRUE? $X(\omega)$ and $Y(\omega)$ ... imaginary. $X(\omega)$ and $Y(\omega)$ are both imaginary. $X(\omega)$ is imaginary and $Y(\omega)$ is real.
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Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
evenfunctions
fouriertransform
0
votes
0
answers
29
GATE Electrical 2014 Set 3  Question: 31
A perfectly conducting metal plate is placed in $xy$ plane in a right handed coordinate system. A charge of $+32\pi \epsilon _0\sqrt{2}$ columbs is placed at coordinate $(0, 0, 2)$. $\epsilon _0$ is the permittivity of free space. Assume $\hat{i}$,$\hat{j}$ ... $2\sqrt{2}\hat{k}$ $2\hat{k}$ $2\hat{k}$ $2\sqrt{2}\hat{k}$
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Feb 12, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
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9.3k
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gate2014ee3
conduction
permitivity
coordinatesystem
0
votes
0
answers
30
GATE Electrical 2014 Set 3  Question: 16
A $183$bus power system has $150$ $PQ$ buses and $32$ $PV$ buses. In the general case, to obtain the load flow solution using NewtonRaphson method in polar coordinates, the minimum number of simultaneous equations to be solved is ___________.
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Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
slackbus
linelosses
numericalanswers
0
votes
0
answers
31
GATE Electrical 2014 Set 3  Question: 20
The two signals $S1$ and $S2$, shown in figure, are applied to $Y$ and $X$ deflection plates of an oscilloscope. The waveform displayed on the screen is
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Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
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gate2014ee3
oscilloscope
evenfunctions
0
votes
0
answers
32
GATE Electrical 2014 Set 3  Question: 17
The signal flow graph of a system is shown below. $U(s)$ is the input and $C(s)$ is the output. Assuming, $h_1=b_1$ and $h_0=b_0b_1a_1$ , the inputoutput transfer function, $G(s)=\dfrac{C(s)}{U(s)}$ ... $G(s)=\dfrac{b_1s+b_0}{s^2+a_1s+a_0} \\$ $G(s)=\dfrac{a_0s+a1}{s^2+b_0s+b_1}$
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
stability
bodeplot
0
votes
0
answers
33
GATE Electrical 2014 Set 3  Question: 22
An operationalamplifier circuit is shown in the figure. The output of the circuit for a given input $v_i$ is $ \bigg (\dfrac{R_2}{R_1} \bigg)v_i \\$ $ \bigg (1+\dfrac{R_2}{R_1} \bigg )v_i \\$ $\bigg (1+\dfrac{R_2}{R_1} \bigg)v_i \\$ +$V_{\text{sat}} \text{ or } V_{ \text{sat}}$
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
operationalamplifier
feedbackresistor
0
votes
0
answers
34
GATE Electrical 2014 Set 3  Question: 19
An $LPF$ wattmeter of power factor $0.2$ is having three voltage settings $300 V$, $150 V$ and $75 V$, and two current settings $5 A$ and $10 A$. The full scale reading is $150$. If the wattmeter is used with $150 V$ voltage setting and $10 A$ current setting, the multiplying factor of the wattmeter is _________.
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Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
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gate2014ee3
powersystems
powermeasurement
currentrating
numericalanswers
0
votes
0
answers
35
GATE Electrical 2014 Set 3  Question: 26
Integration of the complex function $f(z)=\dfrac{z^2}{z^21}$ , in the counterclockwise direction, around $\mid z1 \mid = 1$, is $\pi i$ $0$ $\pi i$ $2 \pi i$
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Feb 12, 2017
in
Complex Variables
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makhdoom ghaya
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9.3k
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gate2014ee3
complexvariables
complexfunctions
cauchysintegraltheorem
+2
votes
1
answer
36
GATE Electrical 2014 Set 3  Question: 21
A state diagram of a logic gate which exhibits a delay in the output is shown in the figure, where $X$ is the don’t care condition, and $Q$ is the output representing the state. The logic gate represented by the state diagram is $XOR$ $OR$ $AND$ $NAND$
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
analoganddigitalelectronics
combinationalcircuits
logicgates
0
votes
0
answers
37
GATE Electrical 2014 Set 3  Question: 24
A nonideal voltage source $V_s$ has an internal impedance of $Z_s$. If a purely resistive load is to be chosen that maximizes the power transferred to the load, its value must be $0$ real part of $Z_s$ magnitude of $Z_s$ magnitude of $Z_s$
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
nonidealvoltagesource
resistiveload
0
votes
0
answers
38
GATE Electrical 2014 Set 3  Question: 18
A singleinput singleoutput feedback system has forward transfer function $G(s)$ and feedback transfer function $H(s)$. It is given that $G(s)H(s)< 1$ . Which of the following is true about the stability of the system? The ... are in left half of the splane It is not possible to say whether or not the system is stable from the information given
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
transferfunction
feedbacksystem
0
votes
0
answers
39
GATE Electrical 2014 Set 3  Question: 23
In $8085A$ microprocessor, the operation performed by the instruction $LHLD$ $2100_H$ is $(H)\leftarrow 21_H$ , $(L)\leftarrow 00_H$ $(H)\leftarrow M(2100_H)$ , $(L)\leftarrow M(2101_H)$ $(H)\leftarrow M(2101_H)$ , $(L)\leftarrow M(2100_H)$ $(L)\leftarrow 00_H$ , $(H)\leftarrow 21_H$
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Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee3
binarycode
processing
0
votes
0
answers
40
GATE Electrical 2014 Set 3  Question: 25
The torquespeed characteristics of motor $(TM)$ and load $(TL)$ for two cases are shown in the figures $(a)$ and $(b)$. The load torque is equal to motor torque at points $P$, $Q$, $R$ and $S$ The stable operating points are $P$ and $R$ $P$ and $S$ $Q$ and $R$ $Q$ and $S$
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
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gate2014ee3
tarque
speed
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