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1041
GATE Electrical 2014 Set 2 | Question: 15
A three phase star-connected load is drawing power at a voltage of $0.9$ $pu$ and $0.8$ power factor lagging. The three phase base power and base current are $100$ $MVA$ and $437.384$ $A$ respectively. The line-to-line load voltage in $kV$ is ________.
A three phase star-connected load is drawing power at a voltage of $0.9$ $pu$ and $0.8$ power factor lagging. The three phase base power and base current are $100$ $MVA$ ...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
Power Systems
gate2014-ee-2
power-factor
star-connection
numerical-answers
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–
0
votes
0
answers
1042
GATE Electrical 2015 Set 2 | Question: 37
In the following sequential circuit, the initial state (before the first clock pulse) of the circuit is $Q_{1}Q_{0}=00$. The state $(Q_{1}Q_{0})$, immediately after the $333^{rd}$ clock pulse is $00$ $01$ $10$ $11$
In the following sequential circuit, the initial state (before the first clock pulse) of the circuit is $Q_{1}Q_{0}=00$. The state $(Q_{1}Q_{0})$, immediately after the $...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
Analog and Digital Electronics
gate2015-ee-2
analog-and-digital-electronics
sequential-circuit
counters
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–
0
votes
0
answers
1043
GATE Electrical 2014 Set 2 | Question: 12
A single phase, $50$ $kVA$, $1000V$/$100V$ two winding transformer is connected as an autotransformer as shown in the figure. The $kVA$ rating of the autotransformer is _____________.
A single phase, $50$ $kVA$, $1000V$/$100V$ two winding transformer is connected as an autotransformer as shown in the figure.The $kVA$ rating of the autotransformer is __...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
Power Systems
gate2014-ee-2
auto-transformer
step-down-transformer
numerical-answers
+
–
0
votes
0
answers
1044
GATE Electrical 2014 Set 2 | Question: 29
Assuming the diodes to be ideal in the figure, for the output to be clipped, the input voltage $v_i$ must be outside the range $-1$ $V$ to $-2$ $V$ $-2$ $V$ to $-4$ $V$ $+1$ $V$ to $-2$ $V$ $+2$ $V$ to $-4$ $V$
Assuming the diodes to be ideal in the figure, for the output to be clipped, the input voltage $v_i$ must be outside the range$-1$ $V$ to $-2$ $V$$-2$ $V$ to $-4$ $V$$+1$...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
Analog and Digital Electronics
gate2014-ee-2
clipper-circuits
diodes
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–
0
votes
0
answers
1045
GATE Electrical 2015 Set 1 | Question: 12
A steady current $I$ is flowing in the $-x$ direction through each of two infinitely long wires at $y = \pm \dfrac{L}{2}$ as shown in the figure. The permeability of the medium is $\mu_{0}$. The $\overrightarrow{B}$-field at $(0,L,0)$ ... $+\dfrac{4\mu _{0}I}{3\Pi L} \hat{Z} \\$ $0 \\$ $-\dfrac{3\mu _{0}I}{4\Pi L} \hat{Z}$
A steady current $I$ is flowing in the $-x$ direction through each of two infinitely long wires at $y = \pm \dfrac{L}{2}$ as shown in the figure. The permeability of the ...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
Power Systems
gate2015-ee-1
permeability
steady-current
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–
0
votes
0
answers
1046
GATE Electrical 2014 Set 2 | Question: 14
A single phase induction motor draws $12$ $MW$ power at $0.6$ lagging power. A capacitor is connected in parallel to the motor to improve the power factor of the combination of motor and capacitor to $0.8$ lagging. Assuming ... reactive power drawn by the motor remains same as before, the reactive power delivered by the capacitor in $MVAR$ is __________.
A single phase induction motor draws $12$ $MW$ power at $0.6$ lagging power. A capacitor is connected in parallel to the motor to improve the power factor of the combinat...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
Electrical Machines
gate2014-ee-2
induction
magnetic-flux
numerical-answers
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–
0
votes
0
answers
1047
GATE Electrical 2015 Set 2 | Question: 43
A balanced (positive sequence) three-phase $AC$ voltage source is connected to a balanced, star connected load through a star-delta transformer as shown in the figure. The line-to-line voltage rating is $230$ V on the star side, and $115$ V on the delta ... Ampere? $50\angle 30^\circ$ $50\angle- 30^\circ$ $50\sqrt{3}\angle 30^\circ$ $200\angle 30^\circ$
A balanced (positive sequence) three-phase $AC$ voltage source is connected to a balanced, star connected load through a star-delta transformer as shown in the figure. Th...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
+
–
0
votes
0
answers
1048
GATE Electrical 2015 Set 2 | Question: 54
An open loop transfer function $G(s)$ of a system is $G(s)=\dfrac{k}{s(s+1)(s+2)}$ For a unity feedback system, the breakaway point of the root loci on the real axis occurs at, $−0.42$ $−1.58$ $−0.42$ and $−1.58$ None of the above
An open loop transfer function $G(s)$ of a system is$G(s)=\dfrac{k}{s(s+1)(s+2)}$For a unity feedback system, the breakaway point of the root loci on the real axis occurs...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
+
–
0
votes
0
answers
1049
GATE Electrical 2015 Set 2 | Question: 48
With an armature voltage of $100$ V and rated field winding voltage, the speed of a separately excited $DC$ motor driving a fan is $1000$ rpm, and its armature current is $10$ A. The armature resistance is $1 \Omega$. The load ... rotational losses, the value of the armature voltage (in Volt) which will reduce the rotor speed to $500$ rpm is _________.
With an armature voltage of $100$ V and rated field winding voltage, the speed of a separately excited $DC$ motor driving a fan is $1000$ rpm, and its armature current is...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
numerical-answers
+
–
0
votes
0
answers
1050
GATE Electrical 2015 Set 2 | Question: 42
A 3-phase transformer rated for $33 kV/11 kV$ is connected in delta/star as shown in figure. The current transformers ($CTs$) on low and high voltage sides have a ratio of $500/5$. Find the currents $i_{1}$ and $i_{2}$, if the fault current is $300$ ... $i_{1}=0A, i_{2}=1\sqrt{3}A$ $i_{1}=1\sqrt{3}A, i_{2}=1\sqrt{3}A$
A 3-phase transformer rated for $33 kV/11 kV$ is connected in delta/star as shown in figure. The current transformers ($CTs$) on low and high voltage sides have a ratio o...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
+
–
0
votes
0
answers
1051
GATE Electrical 2015 Set 2 | Question: 40
The incremental costs (in Rupees/MWh) of operating two generating units are functions of their respective powers $P_{1}$ and $P_{2}$ in $MW$, and are given by $\dfrac{dC_{1}}{dP_{1}}=0.2P_{1}+50$ ... $dC_{2}/dP_{2} = 68.8$ Rs/MWh. If the generations are rescheduled to minimize the total cost, then $P_{2}$ is ________.
The incremental costs (in Rupees/MWh) of operating two generating units are functions of their respective powers $P_{1}$ and $P_{2}$ in $MW$, and are given by$\dfrac{dC_{...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Feb 11, 2017
new
gate2015-ee-2
numerical-answers
+
–
0
votes
0
answers
1052
GATE Electrical 2016 Set 2 | Question: 53
Two identical unloaded generators are connected in parallel as shown in the figure. Both the generators are having positive, negative and zero sequence impedances of $j0.4$ p.u., $j0.3$ p.u. and $j0.15$ p.u., respectively. If the pre-fault ... a line-to-ground $(L-G)$ fault at the terminals of the generators, the fault current, in p.u., is ___________.
Two identical unloaded generators are connected in parallel as shown in the figure. Both the generators are having positive, negative and zero sequence impedances of $j0....
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Power Systems
gate2016-ee-2
sequence-impedences
pre-fault-voltage
numerical-answers
+
–
0
votes
0
answers
1053
GATE Electrical 2016 Set 1 | Question: 54
The circuit below is excited by a sinusoidal source. The value of $R$, in $\Omega$, for which the admittance of the circuit becomes a pure conductance at all frequencies is _____________.
The circuit below is excited by a sinusoidal source. The value of $R$, in $\Omega$, for which the admittance of the circuit becomes a pure conductance at all frequencies ...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Electric Circuits
gate2016-ee-1
capacitance
inductance
sinusoidal-source
numerical-answers
+
–
0
votes
0
answers
1054
GATE Electrical 2016 Set 2 | Question: 49
Consider a linear time invariant system $\dot{x}=Ax$ with initial condition $x(0)$ at $t=0$. Suppose $\alpha$ and $\beta$ are eigenvectors of $(2 \times 2)$ matrix $A$ corresponding to distinct eigenvalues $\lambda_{1}$ and $\lambda_{2}$ respectively. Then the ... $e^{\lambda_{2}t}\alpha$ $e^{\lambda_{1}t}\alpha+e^{\lambda_{2}t}\beta$
Consider a linear time invariant system $\dot{x}=Ax$ with initial condition $x(0)$ at $t=0$. Suppose $\alpha$ and $\beta$ are eigenvectors of $(2 \times 2)$ matrix $A$ co...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Linear Algebra
gate2016-ee-2
linear-algebra
eigen-values
eigen-vectors
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–
0
votes
0
answers
1055
GATE Electrical 2016 Set 1 | Question: 25
If an ideal transformer has an inductive load element at port $2$ as shown in the figure below, the equivalent inductance at port $1$ is $nL \\$ $n^{2}L \\$ $\dfrac{n}{L} \\$ $\dfrac{n^{2}}{L}$
If an ideal transformer has an inductive load element at port $2$ as shown in the figure below, the equivalent inductance at port $1$ is$nL \\$$n^{2}L \\$$\dfrac{n}{L} \\...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Electrical Machines
gate2016-ee-1
turn-ratio
inductive-load
coil
+
–
0
votes
0
answers
1056
GATE Electrical 2016 Set 2 | Question: 50
A second-order real system has the following properties: a) the damping ratio $\zeta=0.5$ and undamped natural frequency $\omega _{n}=10$ rad/s b) the steady state value of the output, to a unit step input, is $1.02$ ... $\frac{102}{s^{2}+10s+100}$ $\frac{100}{s^{2}+10s+100}$ $\frac{102}{s^{2}+5s+100}$
A second-order real system has the following properties:a) the damping ratio $\zeta=0.5$ and undamped natural frequency $\omega _{n}=10$ rad/sb) the steady state value of...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Control Systems
gate2016-ee-2
damping-ratio
natural-frequency
+
–
0
votes
0
answers
1057
GATE Electrical 2016 Set 1 | Question: 26
Candidates were asked to come to an interview with $3$ pens each. Black, blue, green and red were the permitted pen colours that the candidate could bring. The probability that a candidate comes with all $3$ pens having the same colour is _________.
Candidates were asked to come to an interview with $3$ pens each. Black, blue, green and red were the permitted pen colours that the candidate could bring. The probabilit...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Probability & Statistics
gate2016-ee-1
probability-and-statistics
probability
conditional-probability
numerical-answers
+
–
0
votes
0
answers
1058
GATE Electrical 2016 Set 2 | Question: 36
In the balanced $3$-phase, $50$ Hz, circuit shown below, the value of inductance $(L)$ is $10$ mH. The value of the capacitance $(C)$ for which all the line currents are zero, in millifarads, is ___________.
In the balanced $3$-phase, $50$ Hz, circuit shown below, the value of inductance $(L)$ is $10$ mH. The value of the capacitance $(C)$ for which all the line currents are ...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Power Systems
gate2016-ee-2
balanced-system
line
currents
numerical-answers
+
–
0
votes
0
answers
1059
GATE Electrical 2016 Set 1 | Question: 21
Consider a system consisting of a synchronous generator working at a lagging power factor, a synchronous motor working at an overexcited condition and a directly grid-connected induction generator. Consider capacitive $VAr$ to be a ... source and induction generator and synchronous generator are sinks of reactive power. All are sources of reactive power.
Consider a system consisting of a synchronous generator working at a lagging power factor, a synchronous motor working at an overexcited condition and a directly grid-con...
makhdoom ghaya
9.4k
points
makhdoom ghaya
asked
Jan 29, 2017
Power Systems
gate2016-ee-1
unity-power-factor
source-of-reactive-power
load
+
–
1
votes
0
answers
1060
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
Power Systems
gate2016-ee-2
single-line-diagram
three-phase-fault
pre-fault-condition
numerical-answers
+
–
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