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Recent questions tagged gate2014ee1
0
votes
0
answers
1
GATE2014155
The figure shows one period of the output voltage of an inverter.$\alpha$ should be chosen such that $60^{\circ}<\alpha <90^{\circ}$. If $rms$ value of the fundamental component is $50V$, then $\alpha$ in degree is__________
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
periodicfunctions
fouriertransform
numericalanswers
0
votes
0
answers
2
GATE2014154
Figure $(i)$ shows the circuit diagram of a chopper. The switch $S$ in the circuit in figure $(i)$ is switched such that the voltage $v_D$ across the diode has the wave shape as shown in figure $(ii)$. The capacitance $C$ is large so that the voltage across it ... . If switch $S$ and the diode are ideal, the peak to peak ripple $(\text{in}\: A)$ in the inductor current is _________.
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
choppers
ripplevoltages
numericalanswers
0
votes
0
answers
3
GATE2014153
The figure shows the circuit diagram of a rectifier. The load consists of a resistance $10Ω$ and an inductance $0.05H$ connected in series. Assuming ideal thyristor and ideal diode, the thyristor firing angle (in degree) needed to obtain an average load voltage of $70V$ is ______
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
rectifier
thyristor
firing
angle
numericalanswers
0
votes
0
answers
4
GATE2014148
The $dc$ current flowing in a circuit is measured by two ammeters, one $PMMC$ and another electrodynamometer type, connected in series. The $PMMC$ meter contains $100$ turns in the coil, the flux density in the air gap is $0.2\: Wb/m^2,$ and ... The spring constants of both the meters are equal. The value of current, at which the deflections of the two meters are same, is ________
asked
Feb 12, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
electrodynamometer
ammeter
currentmeasurement
numericalanswers
0
votes
0
answers
5
GATE2014147
The reading of the voltmeter $(rms)$ in volts, for the circuit shown in the figure is __________
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
nodalanalysis
voltmeter
numericalanswers
0
votes
0
answers
6
GATE2014146
A system matrix is given as follows. $A=\begin{bmatrix} 0 & 1 & 1\\ 6 & 11 &6 \\ 6& 11& 5 \end{bmatrix}$ The absolute value of the ratio of the maximum eigenvalue to the minimum eigenvalue is _______
asked
Feb 12, 2017
in
Linear Algebra
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
linearalgebra
eigenvalues
eigenmatrix
numericalanswers
0
votes
0
answers
7
GATE2014145
The Bode magnitude plot of the transfer function $G(s)=\dfrac{K(1+0.5s)(1+as)}{s(1+\frac{s}{8})(1+bs)(1+\frac{s}{36})}$ is shown below: Note that $6dB/octave = 20 dB/decade.$ The value of $\dfrac{a}{bK}$ is ________.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
bodeplot
feedbacksystem
numericalanswers
0
votes
0
answers
8
GATE2014144
For the given system, it is desired that the system be stable. The minimum value of $\alpha$ for this condition is ____________. .
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
feedbacksystem
stability
numericalanswers
0
votes
0
answers
9
GATE2014149
Given that the opamps in the figure are ideal, the output voltage $V_0$ is $(V_1V_2)$ $2(V_1V_2)$ $(V_1V_2)/2$ $(V_1+V_2)$
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
operationalamplifier
negativefeedback
0
votes
0
answers
10
GATE2014150
Which of the following logic circuits is a realization of the function $F$ whose Karnaugh map is shown in figure
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
karnaugh
map
logicgates
0
votes
0
answers
11
GATE2014151
In the figure shown, assume the opamp to be ideal. Which of the alternatives gives the correct Bode plots for the transfer function $\dfrac{V_o(\omega )}{V_i(\omega )}?$
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
transfer
function
operationalamplifier
0
votes
0
answers
12
GATE2014152
An output device is interfaced with $8$bit microprocessor $8085A$. The interfacing circuit is shown in figure The interfacing circuit makes use of $3$ Line to $8$ Line decoder having $3$ enable lines $E_1,\overline{E_2},\overline{E_3}$ . The address of the device is $50_H$ $5000_H$ $A0_H$ $A000_H$
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
microprocessor
interfacing
circuit
0
votes
0
answers
13
GATE2014143
The overcurrent relays for the line protection and loads connected at the buses are shown in the figure. The relays are $IDMT$ ... setting for relay $R_B$ to be $0.1$ and $5A$ respectively, the operating time of $R_B$ (in seconds) is ______________
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
overcurrent
relays
line
protection
numericalanswers
0
votes
0
answers
14
GATE2014137
A $15\: kW, 230\: V\:dc$ shunt motor has armature circuit resistance of $0.4\: Ω$ and field circuit resistance of $230\: Ω.$ At no load and rated voltage, the motor runs at $1400$ rpm and the line current drawn by the motor is $5\: A$. At full load, the motor draws a line current of $70\: A.$ Neglect armature reaction. The full load speed of the motor in rpm is _________.
asked
Feb 12, 2017
in
new
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
armaturewinding
revolutionperminute
numericalanswers
0
votes
0
answers
15
GATE2014132
The following four vector fields are given in Cartesian coordinate system. The vector field which does not satisfy the property of magnetic flux density is $y^2a_x+z^2a_y+x^2a_z$ $y^2a_x+x^2a_y+z^2a_z$ $x^2a_x+y^2a_y+z^2a_z$ $y^2z^2a_x+x^2z^2a_y+x^2y^2a_z$
asked
Feb 12, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
cartesian
coordinate
vector
fields
0
votes
0
answers
16
GATE2014133
The function shown in the figure can be represented as $u(t)u(tT)+\frac{(tT)}{T}u(tT)\frac{(t2T)}{T}u(t2T)$ $u(t)+\frac{t}{T}u(tT)\frac{t}{T}u(t2T)$ $u(t)u(tT)+\frac{(tT)}{T}u(t)\frac{(t2T)}{T}u(t)$ $u(t)+\frac{(tT)}{T}u(tT)2\frac{(t2T)}{T}u(t2T)$
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
impulsefunction
unitstepfunction
0
votes
0
answers
17
GATE2014134
Let $X(z)=\dfrac{1}{1z^{3}}$ be the $Z$ – transform of a causal signal $x[n]$ Then, the values of $x[2]$ and $x[3]$ are $0$ and $0$ $0$ and $1$ $1$ and $0$ $1$ and $1$
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
ztransform
sausality
0
votes
0
answers
18
GATE2014136
The core loss of a single phase, $230/115\:V, 50\:Hz$ power transformer is measured from $230\:V$ side by feeding the primary $(230\: V \: \text{side})$ from a variable voltage variable frequency source while keeping the secondary open circuited. The core loss is measured to be $1050\:W$ ... $508\:W$ and $542\:W$ $468\:W$ and $582\:W$ $498\:W$ and $552\:W$ $488\:W$ and $562\:W$
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
corelosses
primarywinding
0
votes
0
answers
19
GATE2014138
A $3$ phase, $50$ $Hz$, six pole induction motor has a rotor resistance of $0.1\: Ω$ and reactance of $0.92\: Ω$. Neglect the voltage drop in stator and assume that the rotor resistance is constant. Given that the full load slip is $3\%$, the ratio of maximum torque to full load torque is $1.567$ $1.712$ $1.948$ $2.134$
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
inductionmotor
windingresistance
0
votes
0
answers
20
GATE2014140
A distribution feeder of $1\:km$ length having resistance, but negligible reactance, is fed from both the ends by $400V$, $50\:Hz$ balanced sources. Both voltage sources $S_1$ and $S_2$ ... $25\:A$ $50\:A$ and $50\:A$ $25\:A$ and $75\:A$ $0\:A$ and $100\:A$
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
singlelinediagram
distribution
feeder
0
votes
0
answers
21
GATE2014141
A two bus power system shown in the figure supplies load of $1.0+j0.5\: \text{p.u}.$ The values of $V_1$ in $\text{p.u.}$ and $\delta_2$ respectively are $0.95$ and $6.00^{\circ}$ $1.05$ and $5.44^{\circ}$ $1.1$ and $6.00^{\circ}$ $1.1$ and $27.12^{\circ}$
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
powersystemanalysis
reactance
0
votes
0
answers
22
GATE2014142
The fuel cost functions of two power plants are Plant $P_1 : C_1=0.05Pg_1^2+APg_1+B$ Plant $P_2 : C_2=0.10Pg_2^2+3APg_2+2B$ where, $P_{g1}$ and $P_{g2}$ are the generated powers of two plants, and $A$ and $B$ are the constants. If the two plants optimally share $1000\:MW$ load ... cost of $100$ $Rs/MWh$, the ratio of load shared by plants $P_1$ and $P_2$ is $1:4$ $2:3$ $3:2$ $4:1$
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
power
plants
powergeneration
0
votes
0
answers
23
GATE2014135
Let $f(t)$ be continuous time signal and let $F(w)$be its Fourier Transform defined by $F(\omega )=\displaystyle{}\int_{\infty }^{\infty }f(t)e^{j\omega t} dt$ define $g(t)$ by $g(t)=\displaystyle{}\int_{\infty }^{\infty }F(u)e^{jut} du$ What is the ... . $g(t)$ would be proportional to $f(t)$ only if $f(t)$ is a sinusoidal function. $g(t)$ would never be proportional to $f(t)$.
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
fouriertransform
unitstepfunction
continuous time
signal
0
votes
0
answers
24
GATE2014139
A three phase synchronous generator is to be connected to the infinite bus. The lamps are connected as shown in the figure for the synchronization. The phase sequence of bus voltage is $RYB$ ... bus same as infinite bus and its frequency is more than infinite bus same as infinite bus and its frequency is less than infinite bus
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
infinite
bus
synchronization
0
votes
0
answers
25
GATE2014130
In the figure, the value of resistor $R$ is $(25 + I/2)\: \text{ohms},$ where $I$ is the current in amperes. The current $I$ is ________
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
loopanalysis
dcsupply
numericalanswers
0
votes
0
answers
26
GATE2014129
An incandescent lamp is marked $40\:W, 240\: V$. If resistance at room temperature $(26^{\circ}C)$ is $120\:\Omega$, and temperature coefficient of resistance is $4.5\times 10^{3} / ^{\circ}C$, then its $ON$ state filament temperature in $^{\circ}C$ is approximately _______
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
incandescent
lamp
filament
numericalanswers
0
votes
0
answers
27
GATE2014126
Let g:$[0,\infty )\rightarrow [0,\infty )$ be a function defined by $g(x)=x[x]$, where $[x]$ represents the integer part of $x.($That is, it is the largest integer which is less than or equal to $x).$ The value of the constant term in the Fourier series expansion of $g(x)$ is _______
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
fourier
series
expansion
fouriertransform
numericalanswers
0
votes
0
answers
28
GATE2014124
The figure shows the circuit of a rectifier fed from a $230V(\text{rms}), 50Hz$ sinusoidal voltage source. If we want to replace the current source with a resistor so that the rms value of the current supplied by the voltage source remains unchanged, the value of the resistance $(\text{in ohms})$ is __________(Assume diodes to be ideal.)
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
rectifier
diode
numericalanswers
0
votes
0
answers
29
GATE2014121
A cascade of three identical modulo  $5$ counters has an overall modulus of $5$ $25$ $125$ $625$
asked
Feb 12, 2017
in
Numerical Ability
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
analytical
logical
0
votes
0
answers
30
GATE2014122
In the Wien Bridge oscillator circuit shown in figure, the bridge is balanced when $\frac{R_3}{R_4}=\frac{R_1}{R_2}\: \:, \:\:\:\: \omega =\frac{1}{\sqrt{R_1C_1R_2C_2}}$ $\frac{R_2}{R_1}=\frac{C_2}{C_1}\:\: , \:\:\:\: \omega =\frac{1}{R_1C_1R_2C_2}$ ... $\frac{R_3}{R_4}+\frac{R_1}{R_2}=\frac{C_2}{C_1}\:\: , \:\:\:\: \omega =\frac{1}{R_1C_1R_2C_2}$
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
wien
bridge
oscillator
0
votes
0
answers
31
GATE2014123
The magnitude of the midband voltage gain of the circuit shown in figure is $($assuming $h_{fe}$ of the transistor to be $100)$ $1$ $10$ $20$ $100$
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
voltagegain
midbandvotage
0
votes
0
answers
32
GATE2014131
In an unbalanced three phase system, phase current $I_a=1\angle (90^{\circ})\: \text{pu}$ , negative sequence current $I_{b2}=4\angle (150^{\circ})\: \text{pu}$, zero sequence current $I_{c0}=3\angle 90^{\circ}\: \text{pu}.$ The magnitude of phase current $I_b$ in $\text{pu}$ is $1.00$ $7.81$ $11.53$ $13.00$
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
unbalancedsystem
sequencenetworks
0
votes
0
answers
33
GATE2014125
Figure shows four electronic switches $(i), (ii), (iii)$ and $(iv)$. Which of the switches can block voltages of either polarity $($applied between terminals $a$ and $b)$ when the active device is in the $OFF$ state? $(i), (ii)$ and $(iii)$ $(ii), (iii)$ and $(iv)$ $(ii)$ and $(iii)$ $(i)$ and $(iv)$
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
dualityswitch
reversesaturationcurrent
+1
vote
0
answers
34
GATE2014127
A fair coin is tossed $n$ times. The probability that the difference between the number of heads and tails is $(n3)$ is $2^{n}$ $0$ $^{n}C_{n3}2^{n}$ $2^{n+3}$
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
probability
coins
0
votes
0
answers
35
GATE2014128
The line integral of function $F = yzi$, in the counterclockwise direction, along the circle $x^2+y^2 = 1$ at $z = 1$ is $2\pi$ $\pi$ $\pi$ $2\pi$
asked
Feb 12, 2017
in
Calculus
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
lineintegral
circleequation
quadraticfunction
0
votes
0
answers
36
GATE2014120
In an oscilloscope screen, linear sweep is applied at the vertical axis horizontal axis origin both horizontal and vertical axis
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
oscilloscope
linear
sweep
0
votes
0
answers
37
GATE2014116
A $2$bus system and corresponding zero sequence network are shown in the figure. The transformers $T_1$and $T_2$ are connected as
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
sequencenetworks
bussystem
0
votes
0
answers
38
GATE2014113
A star connected $400\:V, 50\:Hz, 4$ pole synchronous machine gave the following open circuit and short circuit test results: Open circuit test: $V_{oc} = 400\: V (\text{rms}, \text{linetoline})$ at field current, $I_f = 2.3 A$ ... $I_f = 1.5 A$ The value of per phase synchronous impedance in $Ω$ at rated voltage is __________.
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
opencircuittest
shortciruittest
numericalanswers
0
votes
0
answers
39
GATE2014111
An $8$ – pole, $3$ – phase, $50\: Hz$ induction motor is operating at a speed of $700\:\text{rpm}.$ The frequency of the rotor current of the motor in $Hz$ is _________.
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
motorwinding
rotorcurrent
revolutionperminute
numericalanswers
0
votes
0
answers
40
GATE2014112
For a specified input voltage and frequency, if the equivalent radius of the core of a transformer is reduced by half, the factor by which the number of turns in the primary should change to maintain the same no load current is $1/4$ $1/2$ $2$ $4$
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee1
transformationratio
corelosses
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