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Electrical Engineering (EE)
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Raju Parihar
asked
• 5 minutes 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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Answer
to Question
Radhika Jeughale
asked
• 27 minutes ago
Which portion of the power system is least prone to faults ?
a)
Alternators.
b)
Switchgear.
c)
Transformers.
d)
Underground cable.
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Amit Parashar
asked
• 1 hour ago
A 50 Hz, 11 kV, 3 phase alternator with earthed neutral having a reactance of 3 ohms per phase and is connected to a bus bar through a circuit breaker, if the distributed capacitance upto CB between the phase and neutral is 0.01 μ F.
What is the peak re striking voltage?
a)
18.36 kV
b)
17.96 kV
c)
15.96 kV
d)
12.65 kV
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Anjeesh Kumar Maurya
asked
• 1 hour ago
50Hz 11kv 3 phase alternator with earthed neutral has a reactance of 50 ohm per phase and is connected to a bus bar through Circuit Breaker . The distributed capacitance upto circuit breaker between per phase and neutral is 0
...
more
.01 micro farad. the peak restriking Voltage across the Contact Circuit breaker is?
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Answer
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Kamal Kanta Rana
asked
• 2 hours ago
Resistance of a conductor is 54 ohms.if mass and length increase 3times,I and time increases 2 times.what is the value of final resistance?
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Answer
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Shailesh Patel
asked
• 2 hours ago
In a
p
type material the Fermi level is 0.3 eV above valence band. The concentration of acceptor atoms is increased. The new position of Fermi level is likely to be
a)
0.5 eV above valence band
b)
0.28 eV above valence band
c)
0.1 eV above valence band
d)
below the valence band
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Meenu Maurya
asked
• 4 hours ago
The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60
o
, then the dead time (in minutes) is
a)
5π/12
b)
π/6
c)
π/12
d)
π/3
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Sarabjeet .
asked
• 4 hours ago
For a single-phase, full-bridge inverter supplying power to a highly inductive load as shown below, the correct sequence of operation of switches and diodes is
...
more
a)
S
1
S
4
− S
3
S
2
− S
1
S
4
− S
3
S
2
b)
S
1
D
3
− S
1
S
4
− S
4
D
2
− D
2
D
3
c)
S
1
S
2
− D
1
D
2
− S
3
S
4
− D
3
D
4
d)
S
2
D
4
− D
4
D
1
− D
1
S
3
− S
3
S
2
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Renuka Jogireddy
asked
• 4 hours ago
Consider the following digital circuits:
Multipliers
Read only memories
D-latch
Circuits as shown
Which of these come under the class of combinational circuit?
a)
1 and 2
b)
3 and 4
c)
1, 2 and 3
d)
1, 2, 3 and 4
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Suraj Mali Mali
asked
• 4 hours ago
Which of the following is true for a PNP transistor in active region MCQ?
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Answer
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Ravikumar Pasula
asked
• 5 hours ago
(Q.NO.B18052020) In series circuit R1=8 ohms, C1= 800uF,C2= 250uF and R2= 3.5 ohms across V input and the current in the is 10A ,if the supply frequency is 60Hz find power factor of the circuit?
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Answer
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Channappa Takkod
asked
• 5 hours ago
For the wave given below, the rms value will be
a)
2A
b)
1.528A
c)
1.1A
d)
1A
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Digvijay Kumar
asked
• 5 hours ago
The zero-sequence circuit of the three-phase transformer show in the figure is
...
more
a)
b)
c)
d)
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Himani .
asked
• 5 hours ago
The open circuit impedance matrix of 2 port network shown in figure?
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Answer
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Potu Madhavi
asked
• 6 hours ago
Three resistance of values 8 ohms, 12 ohms and 24 ohms are connected in parallel across12 volts supply, the total resistance of the circuit will be
a)
1/4 ohm
b)
44 ohm
c)
4 ohm
d)
24 ohm
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Jitu Sharma
asked
• 6 hours ago
Consider the following statements in respect of a CC amplifier.
1. It performs a resistance transformation from low to high resistance.
2. Its current gain is close to unity
3. Its voltage gain is close to unity
4. Its frequency range is higher than that of a CE-stage.
Which of the statements is given above are correct?
a)
1, 2 and 4
b)
1 and 3
c)
Only 2 and 4
d)
3 and 4
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Priyamargabandhu
asked
• 6 hours ago
In 8085 microprocessor, an active low signal INTA is not needed from up service which of the following interrupt request?
a)
TRAP
b)
INTR
c)
RST 7.5
d)
RST 5.5
Correct answer is option 'A'. Can you explain this answer?
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Answer
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M. Je
asked
• 7 hours ago
At room temperature
k
T = 0.03 eV.
a)
True
b)
False
Correct answer is option 'A'. Can you explain this answer?
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Answer
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PAWAN KUMAR
asked
• 7 hours ago
Consider the following statements:
1. Divergence of a vector function
at each point gives the rate per unit volume at which the physical entity is issuing from that point.
2. If a vector function ϕ represents temperature, then grad ϕ or ∇ϕ will represents rate of change of temperature with distance.
3. The curl of a vector function A gives the measure of the angular velocity at every point of the vector field.
a)
2 and 3 only
b)
1, 2 and 3
c)
1 and 3 only
d)
2 only
Correct answer is option 'B'. Can you explain this answer?
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Sunil Manjani
asked
• 7 hours ago
Equalising pulses in TV are sent during
a)
horizontal blanking
b)
vertical blanking
c)
serrations (slots)
d)
the horizontal retrace
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Anjali Sb
asked
• 7 hours ago
Acceptor impurity atom in germanium results in
a)
Increased forbidden energy gap
b)
Reduced forbidden energy gap
c)
New narrow energy band slightly above the valence level
d)
New discrete energy level slightly above the valence level
Correct answer is option 'D'. Can you explain this answer?
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Rahul Bopche
asked
• 8 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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Lakhveer Singh
asked
• 8 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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Nitin Negi
asked
• 8 hours ago
Capacitors charge and discharge in __________ manner.
a)
Exponential
b)
Square
c)
Constant
d)
Linear
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Anil Kumar
asked
• 8 hours ago
How many coils of brushes are short circuited in Ac series motor?
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Answer
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Radha Ganji
asked
• 8 hours ago
The given characteristic polynomial s
4
+ s
3
+ 2s
2
+ 2s + 3 =0 has
a)
zero root in RHS of s-plane
b)
one root in RHS of s-plane
c)
two roots in RHS of s-plane
d)
three roots in RHS of s-plane
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Kanishk Bhatt
asked
• 9 hours ago
A disrete-time LTI susyem is described by,
which one is the output y(n) ?
a)
sin δn
b)
δn
c)
a sin δ(n-1)
d)
u(n)
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Sekhar Bg
asked
• 9 hours ago
Needed a Document for measurements?
Related:
Electrical Engineering SSC JE (Technical)
?
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Answer
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Sandy Raj
asked
• 10 hours ago
In two level logic, logic race does not occur.
a)
True
b)
False
Correct answer is option 'A'. Can you explain this answer?
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Lucy
asked
• 10 hours ago
IF V
CC
= 15 V, V
CEQ
= 5 V and I
CQ
= 50 mA, the efficiency in class A operation is
a)
100%
b)
50%
c)
25%
d)
16.7%
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Adarsh .
asked
• 10 hours ago
Distance between two spherical coordinates point (3,pi/2,pi/4) and (5,pi/4,pi/6) ?
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Sunil Manjani
asked
• 10 hours ago
Top loading is sometimes used with an antenna in order to increase its
a)
effective height
b)
bandwidth
c)
beam width
d)
input capacitance
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Mohsin Khan
asked
• 10 hours ago
The formula for the resonant frequency is f =
a)
b)
c)
d)
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Ankita Dixit
asked
• 11 hours ago
In the circuit as shownb = 99, V
BE
= 0.6 V, then what are the values of V
C
and I
C
corresponding to the operating point ?
a)
4.6 V and 1.98 mA
b)
4.7 V and 2.00 mA
c)
5.4 V and 1.56 mA
d)
4.2 V and 2.1 mA
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Sukh Singh
asked
• 11 hours ago
In arc welding, the voltage on ac supply system is in the range
a)
1000-1200 V
b)
400-500 V
c)
200-250 V
d)
70-1000 V
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Sai Kiran
asked
• 11 hours ago
Open circuit test of a transformer gives
a)
hysteresis loss
b)
eddy current loss
c)
hysteresis and eddy current loss both
d)
copper loss
Correct answer is option 'C'. Can you explain this answer?
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Pride
asked
• 11 hours ago
The open circuit voltage of a standard car battery is 12.6?
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Answer
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AMAN KATWAL
asked
• 11 hours ago
In the circuit of the fig P1.1.7, the value of the voltage source E is
a)
-16 V
b)
4 V
c)
-6 V
d)
16 V
Correct answer is option 'A'. Can you explain this answer?
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Kangari Folk
asked
• 11 hours ago
A piece of oil soaked paper has been inserted between the plates of a parallel plate capacitor.Then the potential difference between the plates will
a)
increase
b)
decrease
c)
remain unaltered
d)
becomes zero
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Bhagyasree Mekala
asked
• 12 hours ago
The shape of the transfer characteristic of JFET is very nearly a
a)
hyperbola
b)
straight line
c)
parabola
d)
none of the above
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Kanhai Lal
asked
• 12 hours ago
If R, L and C are the parameters of resistors. What is the condition for the resistor to benon-inductive ?
a)
L=CR
b)
L=CR
2
c)
C=LR
2
d)
(C=R/L)
Correct answer is option 'B'. Can you explain this answer?
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Anil Swami
asked
• 13 hours ago
Consider the following statements: In root-locus plot, the breakaway points
1. Ned not always be on real axis alone
2. Must lie on the root loci
4. Must lie between 0 and – 1
Which of these statements are correct ?
a)
1, 2 and 3
b)
1 and 3
c)
2 and 3
d)
None of the above
Correct answer is option 'B'. Can you explain this answer?
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Anurag Kumar
asked
• 13 hours ago
A point is 10 mm above HP and 20 mm behind VP. Its top view will be?
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Yenen Njsnsb
asked
• 13 hours ago
3: Calculate the operating frequency of the given oscillators: (a) For a BJT Phase shift oscillator, when R = 6 kΩ, C = 1500 pF, RC = 18 kΩ (b) For a Wien Bridge Oscillator, when R = 10 kΩ, C = 2400 pF?
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Thirupathi Mandha
asked
• 13 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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MOHIT KUMAR
asked
• 13 hours ago
Which of the following is applied on the top of the matchsticks?
a)
Red phosphorus
b)
White phosphorus
c)
Potassium sulphate
d)
No option is correct.
Correct answer is option 'A'. Can you explain this answer?
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SAURABH KUMAR
asked
• 13 hours ago
For the given system, how can be steady state error produced by step disturbance be reduced ?
a)
By increasing dc gain of G
1
(s) G
2
(s)
b)
By increasing dc gain of G
2
(s)
c)
By increasing dc gain of G
1
(s)
d)
By removing the feedback
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Vikash Kumar
asked
• 14 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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Sai Kiran
asked
• 14 hours ago
The maximum short circuit current occurs in case of
a)
a three phase bolted fault
b)
a double line to ground fault
c)
a line to line fault
d)
a single line to ground fault
Correct answer is option 'A'. Can you explain this answer?
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Answer
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Nitin Negi
asked
• 14 hours ago
In a capacitor start single-phase motor, when capacitor is replaced by a resistance
a)
torque will increase
b)
the motor will consume less power
c)
motor will run in reverse direction
d)
motor will continue to run in same direction
Correct answer is option 'D'. Can you explain this answer?
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Promugdha Bhattacharya
asked
• 14 hours ago
For which of the following, Thevenin’s and Norton’s equivalents can’t be developed?
a)
DC independent sources
b)
AC independent sources
c)
Independent and dependent sources
d)
Independent and dependent sources with all controlling current and voltage contained within the network whose equivalent is being developed.
Correct answer is option 'C'. Can you explain this answer?
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Sunilbabu Kollapu
asked
• 14 hours ago
The breakdown voltage of a cable depends upon
a)
presence of moisture
b)
operating temperature
c)
time of application of the voltage
d)
all of the above
Correct answer is option 'D'. Can you explain this answer?
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Ganesh Gurram
asked
• 15 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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Answer
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Vaishali More
asked
• 15 hours ago
Energy meter, for connecting, has ––––––– terminals.
a)
2
b)
4
c)
6
d)
8
Correct answer is option 'B'. Can you explain this answer?
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Answer
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Rahul Bopche
asked
• 15 hours ago
has the dimension of
a)
time
b)
capacitance
c)
inductance
d)
resistance
Correct answer is option 'B'. Can you explain this answer?
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Yogendra Choudhary
asked
• 15 hours ago
Which of the following results in a symmetrical fault ?
a)
Single-phase-to earth.
b)
Phase-to-phase.
c)
All the three phases-to earth.
d)
Two phases-to earth.
Correct answer is option 'C'. Can you explain this answer?
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Manoj Pawar
asked
• 16 hours ago
In the optimum generator scheduling different power plants, the minimum fuel cost is obtained when
a)
only the incremental fuel cost of each plant is the same
b)
the penalty factor of each plant is the same
c)
the ratio of the incremental fuel cost to the penalty factor of each plant is the same.
d)
the incremental fuel cost of each plant multiplied by its penalty factor is the same
Correct answer is option 'D'. Can you explain this answer?
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Mahesh547 Sandanaveni
asked
• 17 hours ago
If the number of conductors and speed of a lap wound generator is doubled then the generated emf will be
a)
Remains same
b)
Twice of the former
c)
Four times of former emf
d)
Half of the former emf
Correct answer is option 'C'. Can you explain this answer?
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Jeya Kumar
asked
• 17 hours ago
A 2-terminal network consist of one of the RLC elements. The element is connected to an ac supply. The current through the element is IA when an inductor is inserted in series between the source and element 2IA the current through the element becomes. What is this element ?
a)
A resistor
b)
An inductor
c)
A capacitor
d)
Cannot be a single element
Correct answer is option 'C'. Can you explain this answer?
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Sai Charan
asked
• 17 hours ago
Find the value of [d(t-3) – d(t-1)] * x[t+3].
a)
x(t+3) – x(t+2)
b)
x(t) – x(t+1)
c)
x(t) – x(t+2)
d)
x(t-1) – x(t+2)
Correct answer is option 'C'. Can you explain this answer?
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Bhayu Goswami
asked
• 17 hours ago
Consider the following circuit: What is the value of current I in the 5W resistor in the circuit given in the figure ?
a)
0 A
b)
2 A
c)
3 A
d)
4 A
Correct answer is option 'A'. Can you explain this answer?
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Nitin Negi
asked
• 17 hours ago
Speed torque characteristic of a repulsion induction motor is similar to that of a D.C.
a)
shunt motor
b)
series motor
c)
compound motor
d)
separately excited motor
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Komal Saini
asked
• 17 hours ago
Which of the following signals is monotonic?
a)
x(t) = t
3
– 2t
b)
x(t) = sin(t)
c)
x(t) = sin
2
2(t) + cos
2
2(t) – 2t
d)
x(t) = log(cos(t))
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Bhavan Verma
asked
• 17 hours ago
For what values of k is the following system stable, y = (k^2 – 3k -4)log(x) + sin(x)?
a)
k=1,4
b)
k=2,3
c)
k=5,4
d)
k =4,-1
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Abrar Ahmed
asked
• 17 hours ago
Evaluate (exp(-at)u(t))*u(t), u(t) being the heaviside function.
a)
(1-exp(at)) u(t)/a
b)
(1-exp(at)) u(-t)/a
c)
(1-exp(-at)) u(t)/a
d)
(1+exp(-at)) u(t)/a
Correct answer is option 'C'. Can you explain this answer?
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Sam Moorthi
asked
• 17 hours ago
Find the value of h[n]*d[n-1], d[n] being the delta function.
a)
h[n-2].
b)
h[n].
c)
h[n-1].
d)
h[n+1].
Correct answer is option 'C'. Can you explain this answer?
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Answer
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Malyaj Srivastava
asked
• 17 hours ago
Which of these commutation methods uses two leads?
a)
Class A
b)
Class B
c)
Class C
d)
Class D
Correct answer is option 'D'. Can you explain this answer?
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Answer
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Digvijay Kumar
asked
• 17 hours ago
Zero-sequence fault current is absent when fault is
a)
single-line-to ground fault.
b)
line-to-line ground fault.
c)
double-line-to ground fault.
d)
line-to-line
Correct answer is option 'D'. Can you explain this answer?
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Praveen Banga
asked
• 17 hours 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
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Siva Kumar Dasari
asked
• 18 hours ago
Why substations are rated 132/33 and 33/11kv as a fixed values?Why not other values?
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Manish Rathi
asked
• 18 hours ago
An industrial consumer has a daily load pattern of 2500 kW, 0.8 lag for 8 hours, 2000 kW, 0.6 lag for 8 hours and 1500 kW, unity power factor for 8 hours. What is the load factor?
Correct answer is '0.8'. Can you explain this answer?
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Parul Chaudhary
asked
• 18 hours ago
Let x(t) = rect(t-1/2) Then sinc(x) = sin(piix/piix) the fourier transform of x(t) x(-t) will be given by?
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Dileep Shrivastava
asked
• 18 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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Bhayu Goswami
asked
• 18 hours ago
The volt ampere equation for a long shunt compound motor is given by
a)
V
t
= E
a
+ I
a
r
a
b)
V
t
= E
a
+ I
a
(r
a
+r
a
)
c)
V
t
= E
a
– I
a
r
a
d)
V
t
= E
a
+ I
a
r
a
+ I
L
r
s
Correct answer is option 'B'. Can you explain this answer?
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Shubham Yadav
asked
• 18 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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Rupak Mandal
asked
• 18 hours ago
In a synchronous motor, the breakdown torque is
a)
directly proportional to applied voltage
b)
directly proportional to the square of the applied voltage
c)
inversely proportional to applied voltage
d)
none of the above
Correct answer is option 'A'. Can you explain this answer?
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Praveen Avupati
asked
• 18 hours ago
Power factor of an alternator driven by constant prime mover input can be changed by changing its
a)
speed
b)
load
c)
field excitation
d)
phase sequence
Correct answer is option 'C'. Can you explain this answer?
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Potu Madhavi
asked
• 19 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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Devi Koneti
asked
• 19 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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Gurpreet Singh
asked
• 19 hours ago
Consider the following statements:
In 8085 microprocessor, data - bus and addressbus are multiplexed in order to
1. Increase the speed of microprocessor
2. Reduce the number of pins.
3. Connect more peripheral chips.
Which of the above statement is/are correct?
a)
1 only
b)
2 only
c)
2 and 3
d)
1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
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Vivek Gautam
asked
• 20 hours ago
A series resonant circuit has an inductive reactance of 1000W, a capacitive reactance of 1000W and a resistance of 0. 1W. If the resonant frequency is 10 MHz, then the bandwidth of the circuit will be
a)
1 kHz
b)
10 kHz
c)
1 MHz
d)
0.1 kHz
Correct answer is option 'A'. Can you explain this answer?
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Ankit Kumar
asked
• 20 hours ago
The superposition theorem requires as many circuits to be solved as there are
a)
Sources, nodes and meshes
b)
Sources and nodes
c)
Nodes
d)
Sources
Correct answer is option 'D'. Can you explain this answer?
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Pammy Pammy
asked
• 20 hours ago
An RC amplifier stage has a bandwidth of 500 kHz. What will be the rise time of this amplifier stage?
a)
0.35 μs
b)
0.7 μs
c)
1.0 μs
d)
2.0 μs
Correct answer is option 'B'. Can you explain this answer?
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Sandhya Sharma
asked
• 20 hours ago
Needed a Video for power factor?
Related:
Electrical Engineering SSC JE (Technical)
?
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Abhisri V
asked
• 20 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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Vittal Pawar
asked
• 20 hours ago
Analog and digital electronic?
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रामकेश मीना कैलाई
asked
• 21 hours ago
The resistance of earth should be
a)
infinite
b)
high
c)
low
d)
the minimum possible
Correct answer is option 'D'. Can you explain this answer?
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रामकेश मीना कैलाई
asked
• 21 hours ago
Non-metallic conduits used in internal wiring are generally made of
a)
Wood
b)
rubber
c)
PVC
d)
cork
Correct answer is option 'C'. Can you explain this answer?
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Suraj Tanaji Mali
asked
• 21 hours ago
A pointer of an instrument vansh deflected to returns to zero position when the current is removed due to?
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Sunil Manjani
asked
• 21 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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Supraja Jillella
asked
• 21 hours ago
The number of discs in a string of insulators for 400 kV ac overhead transmission line lies in the range of
a)
32 to 33
b)
22 to 23
c)
15 to 16
d)
9 to 23
Correct answer is option 'B'. Can you explain this answer?
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Potu Madhavi
asked
• 21 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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Manoj Sharma
asked
• 21 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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Harish Godakadi
asked
• 22 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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Potu Madhavi
asked
• 22 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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Sunil Manjani
asked
• 22 hours ago
Cassegrain feed is used with a parabolic reflector to
a)
increase the gain of the system
b)
increase the beamwidth of the system
c)
reduce the size of the main reflector
d)
allow the feed to be placed at a convenient point
Correct answer is option 'D'. Can you explain this answer?
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Hemalatha S
asked
• 22 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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Vaishali More
asked
• 22 hours ago
Which of the following bus is used to transfer data from main memory to peripheral device?
a)
DMA bus
b)
Output bus
c)
Input bus
d)
Data bus
Correct answer is option 'A'. Can you explain this answer?
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DIVYA CHAUHAN
asked
• 22 hours ago
A 50 KVA, 11000/400 V Δ-Y distribution transformer has a resistance of 1% and reactance of 7% per unit. What is the transformer phase impedance referred to the high-voltage side?
a)
78.6 + j 608.2
b)
72.6 + j 508.2
c)
62.6 + j 908.2
d)
65.6 + j 786.2
Correct answer is option 'B'. Can you explain this answer?
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Nitin Negi
asked
• 22 hours ago
The capacitance and loss angle of a given capacitor specimen are best measured by
a)
Wheatstone bridge.
b)
Maxwell bridge.
c)
Anderson bridge.
d)
Schering bridge.
Correct answer is option 'D'. Can you explain this answer?
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