GATE EE 2018
GATE EE
A 0-1 Ampere moving iron ammeter has an internal resistance of 50 m$$\Omega $$ and inductance of
0.1 mH. A shunt coil is
View Question Two wattmeter method is used for measurement of power in a balanced three-phase load
supplied from a balanced three-phas
View Question A single-phase 100 kVA, 1000 V / 100 V, 50 Hz transformer has a voltage drop of 5%
across its series impedance at full l
View Question A transformer with toroidal core of permeability $$\mu $$ is shown in the figure. Assuming
uniform flux density across t
View Question A separately excited dc motor has an armature resistance R$$a$$ = 0.05Ω. The field excitation
is kept constant. At an a
View Question A 200 V DC series motor, when operating from rated voltage while driving a certain load,
draws 10 A current and runs at
View Question A 3-phase 900 kVA, 3 kV / $$\sqrt 3 $$ kV (Δ/Y), 50 Hz transformer has primary (high voltage
side) resistance per phase
View Question In a salient pole synchronous motor, the developed reluctance torque attains the maximum
value when the load angle in el
View Question The equivalent circuit of a single phase induction motor is shown in the figure, where the
parameters are
R1 = R2' = Xl1
View Question A positive charge of 1 nC is placed at (0, 0, 0.2) where all dimensions are in metres.
Consider the
x - y
plane to be a
View Question The capacitance of an air-filled parallel-plate capacitor is 60 pF. When a dielectric slab
whose thickness is half the d
View Question The waveform of the current drawn by a semi-converter from a sinusoidal AC voltage
source is shown in the figure. If I0
View Question A phase controlled single phase rectifier, supplied by an AC source, feeds power to an
R-L-E load as shown in the figure
View Question A single phase fully controlled rectifier is supplying a load with an anti-parallel diode as
shown in the figure. All sw
View Question The figure shows two buck converters connected in parallel. The common input dc voltage
for the converters has a value o
View Question A dc to dc converter shown in the figure is charging a battery bank, B2 whose voltage is
constant at 150 V. B1 is anothe
View Question Four power semiconductor devices are shown in the figure along with their relevant
terminals. The device(s) that can car
View Question The positive, negative and zero sequence impedances of a three phase generator are Z1, Z2
and Z0 respectively. For a lin
View Question In the figure, the voltages are
$${v_1}\left( t \right) = 100\cos \left( {\omega t} \right)$$
$${v_2}\left( t \right) =
View Question Consider the two bus power system network with given loads as shown in the figure. All
the values shown in the figure ar
View Question The series impedance matrix of a short three-phase transmission line in phase coordinates is
$$\left[ {\matrix{
{{Z_s
View Question The positive, negative and zero sequence impedances of a 125 MVA, three-phase, 15.5 kV,
star-grounded, 50 Hz generator a
View Question Consider a lossy transmission line with
V1
and
V2
as the sending and receiving end
voltages, respectively.
Z
and
X
are t
View Question The per-unit power output of a salient-pole generator which is connected to an infinite bus,
is given by the expression,
View Question A 1000 $$ \times $$ 1000 bus admittance matrix for an electric power system has 8000 non-zero
elements. The minimum numb
View Question General Aptitude
P, Q, R and S crossed a lake in a boat that can hold a maximum of two persons, with only
one set of oars. The following
View Question "A common misconception among writers is that sentence structure mirrors thought; the
more _________ the structure, the
View Question The three roots of the equation f(x) = 0 are x = {-2, 0, 3}. What are the three values of x
for which f(x -3) = 0?
View Question For what values of k given below is $${{{{\left( {k + 2} \right)}^2}} \over {k - 3}}$$ an integer?
View Question "Since you have gone off the ________, the _________ sand is likely to damage the car."
The words that best fill the bla
View Question An e-mail password must contain three characters. The password has to contain one
numeral from 0 to 9, one upper case an
View Question In a certain code, AMCF is written as EQGJ and NKUF is written as ROYJ. How will
DHLP be written in that code?
View Question A class of twelve children has two more boys than girls. A group of three children are
randomly picked from this class t
View Question A designer uses marbles of four different colours for his designs. The cost of each marble
is the same, irrespective of
View Question Functions F(a, b) and G(a, b) are defined as follows:
F(a, b) = (a - b)2 and G(a, b) = |a - b| , where |x| represents th
View Question