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Electrical Engineering (EE)
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When two 16-input multiplexers drive a 2-input MUX, what is the result?
a)
2-input MUX
b)
4-input MUX
c)
16-input MUX
d)
32 input MUX
Correct answer is option 'D'. Can you explain this answer?
The Watch Watch
answered
• 3 hours ago
Combination of 3 Mux has 32 input ports and 1 output port. hence 32 input mux.
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Harsha B
asked
• 6 minutes ago
As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor …
a)
Remains the same
b)
Increases
c)
Decreases
d)
None of the above
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Manoj Pradhan
asked
• 27 minutes ago
Two pin sockets should not be used in domestic wiring unless the appliance to be connected is
a)
double earthed
b)
double insulated
c)
controlled by ELCB
d)
controlled by MCB
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Reetika Pradhan
asked
• 40 minutes ago
In a digital system ,there are three inputs A,B,C .The output should be high when at least 2 inputs are high .The minimized boolean expression for the output is?
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Subham Kumar
asked
• 42 minutes ago
A transformer rated 500KVA , 11/0.4KV has an impedance of 10%and is connected to an infinite bus .The fault level of the transformer is?
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Answer
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Sujata Naik
asked
• 52 minutes ago
What is the correct expression for the electricalpower developed by a hydroelectric plant in KW?
a)
b)
c)
75 ´ 0.736wQhh
d)
Correct answer is option 'A'. Can you explain this answer?
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Ruchitha K
asked
• 1 hour ago
The positive sequence current for an l-l fault of a 2kv system is 1400 a and corresponding current for llg fault is 2220 a the zero sequence impedance of the system is?
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Answer
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Praveen Banga
asked
• 1 hour ago
In PNP transistor, with normal bias, the emitter junction is
a)
is always reverse biased
b)
offers very high resistance
c)
offers a low resistance
d)
remains open
Correct answer is option 'C'. Can you explain this answer?
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Answer
to Question
Shrushti Ambiger Ambiger
asked
• 1 hour ago
In circuit shown below find voltage between b and d?
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Answer
to Question
Potu Madhavi
asked
• 2 hours ago
When a line-to-ground fault occurs, the current in the faulted phase is 100 A. The zero-sequence current in this case will be :
a)
Zero
b)
33.3 A
c)
66.6 A
d)
100 A
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Manoj Sharma
asked
• 2 hours ago
In a thyrite lightning arrester the resistance
a)
varies linearly with applied voltage
b)
increases with the applied voltage
c)
Decreases linearly with the applied voltage
d)
is high at low current and low at high current
Correct answer is option 'D'. Can you explain this answer?
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Answer
to Question
Megha Keerthikumar
asked
• 2 hours ago
How to find power of a transistor?
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Answer
to Question
Sunil Manjani
asked
• 2 hours ago
The input to a coherent detector is DSB-SC signal plus noise. The noise at the detector output is
a)
the in-phase component
b)
the quadrature-component
c)
zero
d)
the envelope
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Im Aj
asked
• 2 hours ago
In the below figure, the load is highly inductive. The firing angle is
a
for each of the thyristors. The periods of conduction of Th
1
and Th
2
respectively are
a)
0 to
p
and
p
to 2
p
b)
a
to
p
and
p
+
a
to 2
p
c)
a
to
p
+
a
and
p
+
p
to 2
p
+
a
d)
a
to
p
-
a
and
p
+
a
to 2
p
-
a
Correct answer is option 'C'. Can you explain this answer?
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Answer
to Question
Bhupendra Shah
asked
• 2 hours ago
If V
in
is 0.99 V, what is the digital output of the ADC 0801 after INTER goes low?
a)
0011 0011
b)
0101 1111
c)
0111 1100
d)
1111 1111
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Sangeetha
asked
• 2 hours ago
An amplifier has a power gain of 200. What is its gain in dB (log 10
2
= 0.3)
a)
14 dB
b)
17 dB
c)
20 dB
d)
23 dB
Correct answer is option 'D'. Can you explain this answer?
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Answer
to Question
Irshad Shaikh
asked
• 2 hours ago
The action of JFET in its equivalent circuit can best be represented as a
a)
current controlled current source
b)
current controlled voltage source
c)
voltage controlled voltage source
d)
voltage controlled current source
Correct answer is option 'D'. Can you explain this answer?
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Answer
to Question
Mallika Sarala
asked
• 2 hours ago
The Boolean expression (
A
+ B) (A +
C
) (
B
+
C
) simplifies to
a)
(A + B)
C
b)
(A +
B
)
C
c)
(
A
+ B)
C
d)
none of these
Correct answer is 'C'. Can you explain this answer?
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Answer
to Question
Anish Gupta
asked
• 3 hours ago
In a three phase series inverter, the firing frequency is
a)
three times output frequency
b)
six times output frequency
c)
twice the output frequency
d)
equal to output frequency
Correct answer is option 'B'. Can you explain this answer?
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Answer
to Question
Kanhai Lal
asked
• 3 hours ago
In a split phase motor
a)
the starting winding is connected through a centrifugal switch
b)
the running winding is connected through a centrifugal switch
c)
both starting and running windings are connected through a centrifugal switch
d)
centrifugal switch is used to control supply voltage
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Thirupathi Mandha
asked
• 3 hours ago
SF6 gas is transported in
a)
air cylinders
b)
gas cylinders
c)
liquid form in cylinders
d)
solid form
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Sunil Manjani
asked
• 3 hours ago
A signal propagated in a waveguide has a full wave of electric intensity change between the two further walls, and no component of the electric field in the direction of propagation. The mode is
a)
TE
1.1
b)
TE
1.0
c)
TM
2.2
d)
TE
2.0
Correct answer is option 'D'. Can you explain this answer?
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Answer
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shamik banerjee
asked
• 4 hours ago
The positive sequence current of a transmission line is :
a)
always zero.
b)
1/3 of negative sequence current.
c)
equal to negative current.
d)
3 times negative sequence current
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Hemalatha S
asked
• 4 hours ago
The use of electronic instruments is becoming more extensive because they have
a)
the capability to respond to signals from remote places
b)
afast response and compatibility with digital computers
c)
both (a) and (b)
d)
a high sensitivity but less reliability
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Vaishali More
asked
• 4 hours ago
The PC contains 0450 H and SP contains 08D 6 H. What will be content of P and SP following a CALL to subroutine at location 02 AFH?
a)
0453 H, 08 D 8 H
b)
0453 H, 08 D 4 H
c)
02 AFH, 08 D 8 H
d)
02 AFH, 08 D 4 H
Correct answer is option 'D'. Can you explain this answer?
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Potu Madhavi
asked
• 4 hours ago
For the same voltage drop, increasing the voltage of a distributor n-times.
a)
reduces the x-section of the conductor by n times
b)
increases the x-section of the conductor by n times
c)
reduces the x-section of the conductor by n
2
times
d)
increases the x-section of the conductor by n
2
times.
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Mahesh547 Sandanaveni
asked
• 4 hours ago
The armature resistance of a 6-pole lap wound d.c. machine is
. If the armature is
rewound as a wave-winding, what is the armature resistance
a)
b)
c)
d)
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Chita Samantaray
asked
• 4 hours ago
Filter used in 12 - pulse converters usually on the AC side are ?
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Answer
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Kishan Pathak
asked
• 4 hours ago
As compared to full wave rectifier using two diodes, the four diode bridge rectifier has the dominant advantage of
a)
higher current carrying capacity
b)
lower peak inverse voltage requirement
c)
lower ripple factor
d)
higher efficiency
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Shital Devake
asked
• 5 hours ago
Galloping in transmission line conductors arises generally due to
a)
Asymmetrical layers of ice formation
b)
Vortex phenomenon in light winds
c)
Heavy weight of the line conductors
d)
Adoption of horizontal conductor configurations
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Abhisri V
asked
• 5 hours ago
The z-transform of F(z) of the function f(nT) = a
nT
is
a)
b)
c)
d)
Correct answer is option 'A'. Can you explain this answer?
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Answer
to Question
SACHIN KUMAR
asked
• 5 hours ago
Find the type of feedback topology for the given circuit
a)
Voltage-s hunt
b)
Voltage-senes
c)
Current-shunt
d)
Current-series
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Sunil Manjani
asked
• 5 hours ago
A Wien-bridge is used to measure the frequency of the input signal. However, the input signal has 10% third harmonic distortion. Specifically the signal is 2 sin 400 πt + 0.2 sin 1200 πt (with t insec). With this input the balance will
a)
Lead to a null indication and setting will correspond to a frequency of 200 Hz
b)
Lead to a null indication and setting will correspond to 260 Hz
c)
Lead to a null indication and setting will correspond to 400 Hz
d)
Not lead to null indication
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Bhagyasree Mekala
asked
• 5 hours ago
The BJT amplifier which offers highest input impedance and least voltage gain is
a)
CE
b)
CB
c)
CC
d)
Cascode amplifier
Correct answer is option 'C'. Can you explain this answer?
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Answer
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SATYAM KUMAR
asked
• 5 hours ago
In typical circuits, the stabilization factor S = (ΔI
C
I
CO
) is
a)
< 1
b)
> 1
c)
= 1
d)
<< 1
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Vimmy Kumari
asked
• 5 hours ago
On applying a positive voltage signal to the' base of a normally biased n-p-n CE transistor amplifier
a)
emitter current will fall
b)
collector current will fall
c)
base current will fall
d)
collector voltage will become less positive
Correct answer is option 'D'. Can you explain this answer?
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Answer
to Question
Raja Kapuluri
asked
• 5 hours ago
Which one of the following is correct?
In a switched capacitor network for VAR compensation the SCRs are commutated by
a)
forced commutation
b)
resonant commutation
c)
natural commutation
d)
delayed commutation
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Ranganatha Krishnappa
asked
• 5 hours ago
Which portion of the transmission system is more prone to faults ?
a)
Alternator.
b)
Transformer.
c)
Overhead lines.
d)
Underground cable
Correct answer is option 'C'. Can you explain this answer?
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Answer
to Question
Ravikumar Pasula
asked
• 6 hours ago
What motor use at elevators ?
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Answer
to Question
Himani .
asked
• 6 hours ago
The open circuit impedance matrix of 2 port network shown in figure?
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Answer
to Question
Swetha Kunduru
asked
• 6 hours ago
For Bode plot of (1 +
j
ωT) has
a)
slope of 20 dB/decade and phase angle + tan
-1
(ωT)
b)
slope of - 20 dB/decade and phase angle + tan
-1
(ωT)
c)
slope of 20 dB/decade and phase angle - tan
-1
(ωT)
d)
slope of - 40 dB/decade and phase angle - tan
-1
(ωT)
Correct answer is option 'A'. Can you explain this answer?
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Lakhveer Singh
asked
• 6 hours ago
A synchronous motor operating at rated voltage draws 1.0 pu current at 1.0 power factor . the machine parameters are synchronous reactance 1.0 pu armature resistance negligible . Apart from supplying this rated power if the m
...
more
otor has to supply an additional reactive power of o.8 pu then the field current has to be increased by?
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Answer
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Shraddha Pawar
asked
• 7 hours ago
In a 3-phase squirrel cage induction motor, applied voltage is reduced to x times its rated value. Then, its starting line current from mains and starting torque by auto-transformer starting would reduce respectively from their corresponding direct switching values by a factor of
a)
x, x
2
b)
x, x
c)
x
2
, x
2
d)
x
2
, x
Correct answer is option 'C'. Can you explain this answer?
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Answer
to Question
Vaishali More
asked
• 9 hours ago
Unlimited number of ICs 7490, 78492 and 7493 are available. Which of these could be used to build the dividse-by-60 circuit of figure
a)
7490
b)
7492
c)
combination of 7490 and 7492
d)
combination of 7492 and 7493
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Shubham Yadav
asked
• 9 hours ago
In a CRT the highest positive potential is given to
a)
focusing electrodes.
b)
cathode
c)
vertical deflection plates
d)
post deflection acceleration anode
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Shailesh Patel
asked
• 9 hours ago
Assertion (A):
Decoder is not a combinational circuit.
Reason (R):
Every memory element of semi conductor form has a decoder.
a)
Both A and R are correct and R is correct explanation of A
b)
Both A and R are correct but R is not correct explanation of A
c)
A is true, R is false
d)
A is false, R is true
Correct answer is option 'B'. Can you explain this answer?
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Answer
to Question
Chaitra Chowdary
asked
• 9 hours ago
what is the voltage across capacitor
Related:
Chapter 1 (Part 1) AC Bridges - Notes, Electrical Measurement, Electrical Engineering
?
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Answer
to Question
Vikash Kumar
asked
• 11 hours ago
At slack bus, which one of the following combinations of variables is specified
(The symbols have their usual meaning)
a)
|V|, d
b)
P, Q
c)
P, |V|
d)
Q, |V|
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Dev Never Give Up
asked
• 11 hours ago
Two -insulator discs of identical capacitance value C makes up a string for a 22 kV, 50 Hz,single-phase overhead line insulation system. If the pin to earth capacitance is also C, then the string efficiency is
a)
50%
b)
75%
c)
90%
d)
86%
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Pariki Rajesh
asked
• 12 hours ago
The ratio of rotor copper loss to the rotor input is? A.s B.mech power developed C.power input D.stator loss. Answer is A. Can anyone explain.?
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Answer
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Gopal Sahu
asked
• 12 hours ago
The type of protection that does not respond to faults occurring beyond its zone even though the fault current may pass through the zone is
a)
Unit protection
b)
Generator protection
c)
Back – up protection
d)
Busbar protection
Correct answer is option 'A'. Can you explain this answer?
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Answer
to Question
Uttam Mohanty
asked
• 12 hours ago
Assertion (A):
If points at infinity are included, G(
s
) has same number of poles and zeros.
Reason (R):
The function
has a zero at
s
= - 2.
a)
Both A and R are correct and R is correct explanation of A
b)
Both A and R are correct but R is not correct explanation of A
c)
A is correct but R is wrong
d)
R is correct but A is wrong
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Rinku S
asked
• 12 hours ago
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.
a)
Kelvin
b)
Centigrade
c)
Fahrenheit
d)
Reaumer
Correct answer is option 'C'. Can you explain this answer?
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Answer
to Question
Vaishali More
asked
• 12 hours ago
A depletion type NMOS is operated in enhancement mode. V
p
= - 4 volts. For V
GS
= + 3 volts as V
DS
is increased, I
D
becomes nearly constant when V
ps
equals
a)
1 volt
b)
3 volts
c)
4 volt
d)
7 volts
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Lakshmi Lakshmi
asked
• 12 hours ago
What is DC transient explain with an example?
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Answer
to Question
Devi Koneti
asked
• 12 hours ago
In a pure resistive ac circuit,the frequency of powercurve is how many times of circuit frequency?
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Answer
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Sai Kiran
asked
• 13 hours ago
A small capacitance is added to a highly inductive circuit
a)
the angle between voltage & current will increase
b)
the pf will increase
c)
the pf will decrease
d)
the power drawn will decrease
Correct answer is option 'D'. Can you explain this answer?
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Answer
to Question
Saurav Kumar
asked
• 13 hours ago
The type of insulators used on a 132 KV line are
a)
Shackle type
b)
Disc type
c)
Pin type
d)
none of these
Correct answer is option 'B'. Can you explain this answer?
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Answer
to Question
Shrįshți Şâhü
asked
• 13 hours ago
For the circuit shown in figure given below, assumeb=h
FE
= 100. The transistor is in
a)
active region and V
CE
= 5 V.
b)
saturation region.
c)
active region and V
CE
= 1.42 V.
d)
cutoff region
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Raghunandan Charkha
asked
• 13 hours ago
In p - type germanium, new discrete levels get created
a)
Midway in the forbidden energy gap
b)
Slightly above the valence bond
c)
Slightly below the conduction band
d)
In the valence band
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Pinkesh Patel
asked
• 14 hours ago
In the circuit shown below, Q
1
has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If V
cc
is +5V, X and Y are digital signals with 0V as logic 0 and V
oc
as logic 1, then the Boolean expression for Z is
a)
XY
b)
c)
d)
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Rahul Bopche
asked
• 14 hours ago
In an Anderson bridge, the unknown inductance is measured in term of known
a)
resistance.
b)
capacitance.
c)
inductance and resistance.
d)
resistance and capacitance
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Indrajit Mal
asked
• 14 hours ago
The insulation resistance of a single core cable is 200 MW/km. The insulation resistance for 5km length is
a)
40 MW
b)
1000 MW
c)
200 MW
d)
8 MW
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Faisal Rather
asked
• 14 hours ago
Needed a Video for construction of transformer?
Related:
Operating Principles And Construction Of Single Phase Transformers
?
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Answer
to Question
Mohammad Naveed
asked
• 14 hours ago
A 4 pole 240volts dc series motor has a wave wound arm. with 180 conductors the arm and field resistances are 0.10 and 0.20 respectively if the motor is drawing 40A at 0.015 wb flux/pole then the speed under this condition is
...
more
_____RPM( please answer don't ignore it guys please I have lot to solve please)?
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Answer
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Rajeshraj Ball
asked
• 15 hours ago
Under no load conditions, which of the following loss is negligible ?
a)
Hysteresis loss
b)
Eddy current loss
c)
Copper loss
d)
All losses have same magnitude
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Potu Madhavi
asked
• 15 hours ago
A 3-Phase star-connected symmetrical load consumes P watts of power from a balance supply. If the same load is connected in delta to the same supply , the power consumption will be
a)
P
b)
c)
3 P
d)
not determinable from the given data
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Nalla Pavan
asked
• 15 hours ago
The industrial controller having the best steady - state accuracy is
a)
a derivative controller
b)
an integral controller
c)
a rate feedback controller
d)
a proportional controller
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Pinkesh Patel
asked
• 15 hours ago
The Voltage Source Inverter (VSI) shown in the figure below is switched to provide a 50Hz, square wave ac output voltage v
o
across an RL load. Reference polarity of v
o
and reference direction of the output current i
o
are indicated in the figure. It is given that R = 3 ohms, L = 9.55mH.
Appropriate transition i.e., Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) of the IGBTs during turn-on / turn-off is
a)
ZVS during turn off
b)
ZVS during turn-on
c)
ZCS during turn off
d)
ZCS during turn-on
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Harish Godakadi
asked
• 15 hours ago
Minimum number of coils for 400V 6 pole lap wound dc machine of maximum voltage for 15V between adjacent commutator segments should be?
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Answer
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Daniel Daka
asked
• 15 hours ago
How to find the question of induction motor has an output of 30KW when running at 90% of synchronous speed and with rotation at losses of 1.4KW,calculate (1)rotor copper losses (2)operating efficiency of the motor when the st
...
more
ator of the copper losses 3.4KW( neglect any losses)?
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Answer
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Gaurav Gupta
asked
• 15 hours ago
In a ripple counter, the stage whose output has a frequency equal to 1/ 8th of the clock signal applied to the first stage, also has an output periodicity is equal to 1/ 8th of the output signal obtained from the last stage t
...
more
he counter is?
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Alvina Raynee
asked
• 16 hours ago
Needed a Video for electrical machine?
Related:
Electrical Machines - Notes, Videos, MCQs & PPTs
?
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Answer
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Soumen Maity
asked
• 16 hours ago
The breadth factor of 3rd harmonic EMF of a 3 phase 4 pole synchronous machine having 36 stator slots is- a)0.47, b)0.53, c) 0.67, d)0.73. Need the answer with explanation?
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Yogesh Goyal
asked
• 16 hours ago
For a 100 hp 250 V, compound dc motor with compensating winding has a field current of 5 A to produce a voltage of 250 V at 1200 rpm. What will be the shunt field current of this machine at no load?
a)
5 A
b)
5.6 A
c)
4 A
d)
0 A
Correct answer is option 'A'. Can you explain this answer?
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Chalumuri Ramesh
asked
• 16 hours ago
For a dc shunt motor of 5 kW, running at 1000 rpm, the induced torque will be
a)
47.76 N
b)
57.76 N
c)
35.76 N
d)
37.76 N
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Akshata Ngl
asked
• 16 hours ago
X(t)=u(t 2)-u(t-2) h(t)=u(t 2)-u(t-2) Find x(t)*h(t) with graphical method?
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Deepak Panigrahi
asked
• 16 hours ago
A. Positive sequence components – 5th harmonic component
B. Negative sequence components – 7th harmonic component
C. Zero sequence components – 3rd harmonic component
Above are the matching made for the harmonics and the associated harmonic component, then the correct marking is
a)
A,B,C
b)
C
c)
A,B
d)
B,C
Correct answer is option 'B'. Can you explain this answer?
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Mayuk Yadav
asked
• 16 hours ago
Armature reaction in a generator results in
a)
Demagnetizing the center of all poles
b)
Demagnetization of trailing pole tip and magnetization of leading pole tip
c)
Demagnetization of leading pole tip and magnetization of trailing pole tip
d)
Magnetizing the center of all poles
Correct answer is option 'C'. Can you explain this answer?
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Pankaj Rasane
asked
• 17 hours ago
A 2 kVA transformer has iron loss of 150 Wand full-load copper loss of 250 W. Themaximum efficiency of the transformer wouldoccur when the total loss is
a)
500 W.
b)
400 W.
c)
300 W.
d)
275 W.
Correct answer is option 'C'. Can you explain this answer?
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Kalyan Sreenivas
asked
• 17 hours ago
Two 490 kW transformers each has a maximum efficiency of 98%, but in one the max efficiency occurs at full load while in other, it occurs at half load. Each transformer is on full load for 4 hours, on half load for 6 hours and on one tenth load for 14 hours per day
Q.
The total loss of transformer 1 in a day is _____
a)
20 kW
b)
120kW
c)
116 kW
d)
148 kW
Correct answer is option 'D'. Can you explain this answer?
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Sushil Bohra
asked
• 17 hours ago
How does the MOSFET differ from the JFET?
a)
JFET has a p-n junction
b)
They are both the same
c)
JFET is small in size
d)
MOSFET has a base terminal
Correct answer is option 'A'. Can you explain this answer?
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Devi Koneti
asked
• 17 hours ago
Three identical resistances connected in Star consume 4000 watt power if resistances are connected in Delta across the same supply the power consumed is?
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Amit Parashar
asked
• 17 hours ago
In the buck-boost converter, what is the maximum value of the switch utilization - factor?
a)
1.00
b)
0.50
c)
0.75
d)
0.25
Correct answer is option 'C'. Can you explain this answer?
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Ganesh Gurram
asked
• 17 hours ago
If a change in base current does not change the collector current, the transistor amplifier is said to be
a)
cut-off
b)
complemented
c)
saturated
d)
critical
Correct answer is option 'C'. Can you explain this answer?
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Anurag Kumar
asked
• 19 hours ago
Calculate the current across the 4 ohm resistor.?
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Nitin Negi
asked
• 19 hours ago
A series R-L-C circuit will have unity power factor if operated at a frequency of
a)
1/LC
b)
c)
1/ w
2
LC
d)
Correct answer is option 'D'. Can you explain this answer?
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Dileep Shrivastava
asked
• 19 hours ago
The voltage actually used for setting up of theuseful flux in the air gap of 3- phase induction motor is
a)
= applied voltage
b)
> applied voltage
c)
< applied voltage
d)
= rotor induced emf.
Correct answer is option 'A'. Can you explain this answer?
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Akash Kumar
asked
• 19 hours ago
Books for preparation of gate?
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Guruvilli Govinda Rao
asked
• 19 hours ago
Three memory chips are of size 1 KB, 2 KB and 4 KB. Their address bus is 10 bits, What are the data bus sizes of the chips ?
a)
8 bits, 16 bits and 24 bits respectively.
b)
8 bits, 16 bits and 32 bits respectively.
c)
8 bits, 16 bits and 64 bits respectively.
d)
8 bits, 16 bits and 128n bits respectively
Correct answer is option 'B'. Can you explain this answer?
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Yoosuf Salman
asked
• 19 hours ago
Statement: There were different streams of freedom movements in colonial India carried out by the moderates, liberals, radicals, socialists, and so on. Which one of the following is the best inference from the above statement?
a)
The emergence of nationalism in colonial India led to our Independence
b)
Nationalism in India emerged in the context of colonialism
c)
Nationalism in India is homogeneous
d)
Nationalism in India is heterogeneous
Correct answer is option 'D'. Can you explain this answer?
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Raju Parihar
asked
• 20 hours ago
The illumination level in houses is in the range
a)
10-20 lumen/m
2
b)
30-50 lumen/m
2
c)
40-75 lumen/m
2
d)
100-140 lumen/m
2
Correct answer is option 'C'. Can you explain this answer?
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Ashish Verma
asked
• 20 hours ago
Statement for Linked Answer Questions: 62 & 63
In the following network, the voltage magnitudes at all buses are equal to 1 pu, the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to j1
The voltage phase angles in rad at buses 2 and 3 are
a)
b)
c)
d)
Correct answer is option 'C'. Can you explain this answer?
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Khelesh Sahu
asked
• 21 hours ago
What is the unit of field strength?
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Mansi Asthana
asked
• 21 hours ago
A 50Hz, bar primary CT has a secondary with 500turns. The secondary supplies 5A current into a purely resistive burden of 1 ohm. The magnetizing ampere turns is 200. The phase angle between the primary and secondary current i
...
more
s?
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Sunil Manjani
asked
• 21 hours ago
In electromagnetic waves, polarization
a)
is caused by reflection
b)
is due to the tranverse nature of the waves
c)
results from the longitudinal nature of the waves
d)
is always vertical in an isotropic medium
Correct answer is option 'B'. Can you explain this answer?
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Sunil Manjani
asked
• 21 hours ago
The Hartley-Shannon theorem sets a limit on the
a)
highest frequency that may be sent over a given channel
b)
maximum capacity of channel with a given noise level
c)
maximum number of coding levels in a channel with a given noise level
d)
maximum number of quantizing levels in a channel with a given noise level
Correct answer is option 'B'. Can you explain this answer?
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Sunil Manjani
asked
• 22 hours ago
A ferrite is
a)
a nonconductor with magnetic properties
b)
an intermetallic compound with particularly good conductivity
c)
an insulator which heavily attenuates magnetic fields
d)
a microwave semiconductor invented by Faraday
Correct answer is option 'A'. Can you explain this answer?
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Amrutha Varshini
asked
• 22 hours ago
HT cables are generally used upto
a)
11 kV
b)
33 kV
c)
66 kV
d)
132 kV
Correct answer is option 'A'. Can you explain this answer?
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