UPPCL JE Electronics Question Paper 25 March 2021 1st Shift With Answer
UPPCL JE Electronics Question Paper 25 March 2021 1st Shift With Answer
UPPCL JE Electronics Question Paper 25 March 2021 1st Shift With Answer
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Participant ID
Participant www.exammix.com
Name
Test Center
Name
Test Date 25/03/2021
Test Time 9:00 AM - 12:00 PM
om
Junior Engineer (Trainee) Electronics or Tele
Subject
Communication
.c
Section : Domain Knowledge
ix
Q.1 The number of cycles required to execute the given instruction is:
MOV DPTR,#data16
Ans 1. 3
m
2. 2
m
3. 4
4. 1
xa
Question ID : 5038903775
Status : Answered
.e
Chosen Option : 4
Question ID : 5038903694
Status : Answered
Chosen Option : 3
2. Zener diode
m
3. Avalanche diode
4. Schottky diode
o
Question ID : 5038903742
.c
Status : Answered
Chosen Option : 4
ix
Ans 1. 456
m
2. 111001000
m
3. 111
4. 00111
xa
Question ID : 5038903780
Status : Answered
.e
Chosen Option : 2
Q.5 As shown in the figure, when the Network N is inserted between the load and source, the
w
2. 2.5252 dB
3. 25.2 dB
4. 4.022 dB
Question ID : 5038903801
Status : Answered
Chosen Option : 4
3. Using grounding
Question ID : 5038903828
Status : Answered
Chosen Option : 1
Q.7
o m
Find the characteristic impedance for the network shown in the figure.
.c
Ans 1. 38.73 Ω
2. 42.5 Ω
ix
3. 16 Ω m
4. 25 Ω
Question ID : 5038903800
am
Status : Answered
Chosen Option : 1
Ans 1. deflection
.e
2. 'null'
3. graduated
w
4. auxiliary
w
Question ID : 5038903744
Status : Answered
w
Chosen Option : 2
Q.9 Signal modulation has proved to be advantageous in more than one way in the
communication system. Which of the following is FALSELY stated?
Ans 1. Communication range increases
Question ID : 5038903812
Status : Answered
Chosen Option : 3
Question ID : 5038903787
Status : Answered
Chosen Option : 3
2. 4
m
3. 3
4. 2
o
Question ID : 5038903757
.c
Status : Answered
Chosen Option : 2
ix
Q.12 (B2F8)16 = (?)10 m
What should come in the place of question mark?
Ans 1. 51246
am
2. 45816
3. 32678
4. 10240
x
Question ID : 5038903715
.e
Status : Answered
Chosen Option : 2
w
w
w
m
For an Astable multivibrator shown here, the frequency can be calculated as:
Ans
1.
o
.c
2.
3.
ix
m
am
4.
Question ID : 5038903736
Status : Answered
x
Chosen Option : 3
.e
w
w
w
Ans
1.
2.
m
3.
o
.c
4.
ix Question ID : 5038903711
m Status : Answered
Chosen Option : 4
am
Q.15 Calculate the time required to execute the entire instruction cycle if two machine codes,
0011 1110 and 0011 0010, are stored in memory locations 2000H and 2001H, respectively.
If the clock frequency is 2 MHz, first machine code represents opcode to load data byte in
accumulator and second code represents data to be loaded in accumulator.
Ans 1. 1.5 µs
x
2. 0.5 µs
.e
3. 3.5 µs
4. 2.5 µs
w
Question ID : 5038903786
w
Status : Answered
Chosen Option : 3
w
Ans 1. 15.7 mV
2. 101.5 mV
m
3. 76 mV
4. 91.2 mV
o
Question ID : 5038903733
.c
Status : Answered
Chosen Option : 4
ix
Q.17 Which of the following is NOT an alternate name for a digital multimeter?
Ans 1. SWR meter
m
2. Volt Ohm meter
am
3. Voltmeter
4. Ohmmeter
Question ID : 5038903743
x
Status : Answered
Chosen Option : 1
.e
Q.18 The effective resistance seen looking into the primary of a 15 : 1 transformer connected to
w
an 8 Ω load is:
Ans 1. 1.8 kΩ
w
2. 64 Ω
3. 8 kΩ
w
4. 225 Ω
Question ID : 5038903734
Status : Answered
Chosen Option : 1
2. Pulse generator
3. Accumulator
4. Latch
Question ID : 5038903779
Status : Answered
Chosen Option : 4
Q.20 Find the maximum possible core diameter which allows single mode operation at a
wavelength of 1.3 µm in a graded index fiber having a parabolic refractive index profile core
with core refractive index at the core axis of 1.5 and relative index difference of 1%.
Ans 1. 2.5 µm
m
2. 3.3 µm
3. 5 µm
o
4. 6.6 µm
.c
Question ID : 5038903811
Status : Answered
ix
Chosen Option : 2
Question ID : 5038903710
Status : Answered
Chosen Option : 4
o m
Ans 1. slot line
.c
2. co-axial line
ix
4. strip line m
Question ID : 5038903802
Status : Answered
m
Chosen Option : 2
xa
Question ID : 5038903724
Status : Answered
Chosen Option : 1
2. Photo-excited emission
3. Thermionic emission
4. Photo-electric emission
Question ID : 5038903722
Status : Answered
Chosen Option : 4
Q.25 If the power intensity of sound is 0.08 W/m2 at 1 metre distance from the loudspeaker when
the amplifier delivers 25 watts, determine the loudspeaker efficiency.
Ans 1. 8%
m
2. 4%
3. 9%
o
4. 12%
.c
Question ID : 5038903707
Status : Answered
ix
Chosen Option : 2
an embedded system.
Question ID : 5038903778
w
Status : Answered
Chosen Option : 3
w
Q.27 Determine the threshold optical power in a long single mode fiber with 0.5 dB km-1 for
stimulated Brillouin scattering within the fiber at wavelength of 1.3 µm. Fiber core diameter
w
2. 1.38 W
3. 80.3 mW
4. 65.2 mW
Question ID : 5038903808
Status : Answered
Chosen Option : 2
4. Principle of Equity
m
Question ID : 5038903769
Status : Answered
Chosen Option : 4
o
Q.29 Which of the following is NOT true for a rectifier?
.c
Ans 1. The working of a half wave rectifier takes advantage of the fact that diodes allow
current flow in multiple directions.
ix
2. Half wave rectifiers use one diode, while a full wave rectifier uses multiple diodes.
m
3. A rectifier can consist of a single diode or a group of diodes.
4. A rectifier is a device that converts alternating current (AC) to direct current (DC).
am
Question ID : 5038903695
Status : Answered
Chosen Option : 1
x
Q.30 Select the option that is true regarding the following two statements labelled Assertion (A)
and Reason (R).
.e
Assertion (A): Although half-wave rectifiers without filters are theoretically possible, but in
reality we use half wave rectifiers with a filter.
w
Reason (R): As DC equipment requires a constant waveform, we need to ‘smooth out’ this
pulsating waveform for it to be of any use in the real world.
w
Question ID : 5038903731
Status : Answered
Chosen Option : 1
2. Page
3. Handoff
4. Forward Channel
Question ID : 5038903825
Status : Answered
Chosen Option : 3
Q.32 8051 can access up to __________ of program memory and __________ of external data
memory.
Ans 1. 64 KB, 32 KB
m
2. 32 KB, 64 KB
3. 64 KB, 64 KB
o
4. 16 KB, 64 KB
.c
Question ID : 5038903771
Status : Answered
ix
Chosen Option : 1
m
Q.33 Determine Vo if R1 = 100 kΩ, Rf = 500 kΩ and Vi = 2 V in the circuit shown.
m
xa
.e
w
Ans 1. −5 V
w
2. 5 V
3. –10 V
w
4. 10 V
Question ID : 5038903730
Status : Answered
Chosen Option : 3
3. 25.45 H, 0.85 F
4. 15.45 H, 2.2 F
Question ID : 5038903794
Status : Answered
Chosen Option : 1
m
printf("Hello There\n");
printf("Thank You");
return (0);
o
}
Ans 1. 0
.c
2. Hello There
ix
3. Line Splicing
4. Thank You m
Question ID : 5038903824
Status : Answered
am
Chosen Option : 1
2. Low bandwidth
3. Simple biasing
.e
2. 1, 2, 3, 4
w
3. 1, 2, 3
4. 1, 2, 3, 4, 5
w
Question ID : 5038903764
Status : Answered
Chosen Option : 4
2. 40°C
3. 30°C
4. 20°C
Question ID : 5038903689
Status : Answered
Chosen Option : 2
m
2. 290.57
3. 45.88
o
4. 572.25
.c
Question ID : 5038903737
Status : Answered
ix
Chosen Option : 2
m
Q.39 ___________ is a type of resistor whose electrical resistance varies with changes in
temperature.
Ans 1. Thermistor
am
2. Inductor
3. Geostat
4. Capacitor
x
.e
Question ID : 5038903799
Status : Answered
Chosen Option : 1
w
w
w
2. 5%
3. 15%
4. 10%
m
Question ID : 5038903714
Status : Answered
Chosen Option : 4
o
Q.41 Find the electricity bill for a month (assume 30 days) with the given data.
.c
(i) Six lamps of 40 W each, working for 4 hours per day
(ii) Two tube lights 125 W each, working for 2 hours per day
ix
(iii) One 1 kW heater working for 3 hours per day.
4. Rs. 421
xa
Question ID : 5038903690
Status : Answered
.e
Chosen Option : 3
w
Question ID : 5038903745
Status : Answered
Chosen Option : 4
Question ID : 5038903820
Status : Answered
Chosen Option : 4
m
Q.44 Which of the following is NOT responsible for poor power factor?
Ans 1. Variations in power loading
o
2. Capacitors in the distribution system
.c
3. High voltage
4. Harmonic currents
ix Question ID : 5038903704
m Status : Answered
Chosen Option : 2
m
xa
.e
w
w
w
o m
.c
ix
Ans
m
1. 1-c, 2-d, 3-a, 4-b
m
2. 1-d, 2-b, 3-a, 4-c
Question ID : 5038903821
.e
Status : Answered
Chosen Option : 3
w
w
w
1.
2.
3.
4.
o m
Question ID : 5038903712
Status : Answered
.c
Chosen Option : 2
ix
Q.47 Determine the contents of accumulator if the instruction RAL is executed twice. Assume the
contents of accumulator is AAH and CY=0.
Ans 1. B0H
m
2. ACH
am
3. A3H
4. A9H
Question ID : 5038903783
x
Status : Answered
Chosen Option : 4
.e
Q.48 In this mode, the electric field is purely transverse to the direction of propagation, whereas
the magnetic field is not. Name the mode of propagation of microwaves.
w
4. Hybrid Waves
Question ID : 5038903795
Status : Answered
Chosen Option : 2
Question ID : 5038903817
Status : Answered
Chosen Option : 1
Q.50 Calculate the current required to produce a deflection of 100°, if the coil of a PMMC
instrument has 60 turns on a former 18 mm wide, effective length of conductor = 25 mm,
moves in a uniform field of flux density 0.5 T, control spring constant = 1.5 × 10-6
Nm/degree.
Ans 1. 4.56 mA
m
2. 11.11 mA
3. 2.56 mA
o
4. 12.43 mA
.c
Question ID : 5038903748
ix
Status : Answered
m Chosen Option : 2
Q.51 A ________ in electric kettle can turn itself on and off as and when required without troubling
you, even when you are away. It is not just cost-saving, but it is also something that would
help you do your bit towards energy conservation.
am
2. programmable watch
3. programmable speaker
x
4. programmable radio
.e
Question ID : 5038903753
Status : Answered
w
Chosen Option : 1
w
Q.52 After the execution of the given statements, determine the status of CY, AC and P flags.
MOV A,#9CH
w
ADD A,#64H
Ans 1. CY=0, AC=1, P=1
Question ID : 5038903774
Status : Answered
Chosen Option : 2
2.
3. r
4. 5r
Question ID : 5038903693
Status : Answered
Chosen Option : 1
Q.54 For an L section, shown in the figure, find the iterative impedance at ports 1 and 2,
respectively:
o m
.c
Ans
ix
1. 100 Ω, 300 Ω
m
2. 200 Ω, 400 Ω
m
3. 200 Ω, 100 Ω
4. 400 Ω, 200 Ω
xa
Question ID : 5038903803
Status : Answered
Chosen Option : 4
.e
Q.55 Identify the type of microphone (in sequence A, B, C) given in the diagram.
w
w
w
Question ID : 5038903832
Status : Answered
Chosen Option : 2
2. 01101010
3. 01000101
4. 10101001
Question ID : 5038903718
Status : Answered
Chosen Option : 1
Q.57 The voltage gain of a certain amplifier without feedback is 10 dB. With feedback its voltage
gain reduces to 5 dB. Determine its feedback factor.
Ans 1. β = 0.1
2. β = 1
m
3. β = 10
4. β = 0.01
o
.c
Question ID : 5038903741
Status : Answered
Chosen Option : 1
ix
main( )
m
{
int i = 8 ;
am
while ( i = 8 )
{
printf ( "Getting out" ) ;
i++ ;
}
}
x
2. Nothing is printed
Question ID : 5038903698
Status : Answered
w
Chosen Option : 4
2. Abis
3. Um
4. A
Question ID : 5038903830
Status : Answered
Chosen Option : 2
2.
Question ID : 5038903781
Status : Answered
Chosen Option : 1
o m
.c
ix
m
m
Ans 1. Half-wave rectifier
xa
2. Full-wave rectifier
3. Bridge rectifier
.e
4. Centre-tapped rectifier
Question ID : 5038903686
w
Status : Answered
Chosen Option : 1
w
w
2. pnp npn
3. npn pnp
4. npp ppn
m
Question ID : 5038903759
Status : Answered
o
Chosen Option : 3
.c
Q.63 What is the output of the given program?
ix
main( )
{
int ch = 1 ;
switch ( ch )
{
m
case 1 :
printf ( "\nGoodbye1" ) ;
am
case 2 :
printf ( "\nGoodbye2" ) ;
}
}
Ans 1. Goodbye2
x
2. Goodbye1
.e
3. Goodbye1Goodbye2
4. Goodbye1
w
Goodbye2
w
Question ID : 5038903697
Status : Answered
Chosen Option : 4
w
3. A parallel circuit in which components share the same end node is called current
divider
4. The equivalent resistance is always less than any of the individual resistances
Question ID : 5038903738
Status : Answered
Chosen Option : 2
#include
int main()
{
int i, a[4]={3,1,2,4},result;
result=a[0];
for(i=1;i<4;i++)
{
if(result>a[i])
continue;
result=a[i];
}
printf(“%d”,result);
return 0;
}
Ans 1. 1
2. 4
3. 3
m
4. Error
o
Question ID : 5038903699
Status : Answered
.c
Chosen Option : 2
ix
Q.66 In an OPAMP inverting amplifier, the feedback resistor is 22 kΩ and the input resistance is
10 kΩ. Find the output voltage if the input is 2 V.
Ans 1. –3.6 V
m
2. –4.4 V
am
3. –2.2 V
4. +4.4 V
Question ID : 5038903735
x
Status : Answered
Chosen Option : 2
.e
2. (B’ .C) + A
w
3. (B’ .A) + A
w
4. (B’ .C’) + A
Question ID : 5038903720
Status : Answered
Chosen Option : 2
m
Ans 1. Digital circuit
2. Analogue circuit
o
3. Parallel circuit
.c
4. Mixed circuit
ix
Question ID : 5038903728
Status : Answered
m Chosen Option : 4
Q.69 Determine the bandwidth required for an FM signal having modulation frequency 2 kHz and
m
maximum deviation 10 kHz.
Ans 1. 16 kHz
xa
2. 32 kHz
3. 24 kHz
.e
4. 8 kHz
Question ID : 5038903819
w
Status : Answered
Chosen Option : 3
w
Q.70 Ez≠0 and Hz≠0 represent which type of mode of propagation of microwaves?
w
3. Hybrid Waves
Question ID : 5038903796
Status : Answered
Chosen Option : 4
2. 15 GHz
3. 20 GHz
4. 25 GHz
Question ID : 5038903789
Status : Answered
Chosen Option : 1
m
Q.72 For a cycloconverter, when the displacement angle of the load is 0 degrees, each converter
carries the load current when it operates in:
o
Ans 1. its rectifying region only
.c
2. its rectifying and inverting region
ix
4. idle region only
m Question ID : 5038903762
Status : Answered
Chosen Option : 2
am
Q.73 Determine the average % power in each side frequency in case of AM using sinusoidal
modulating wave. Given that the percentage modulation = 20%.
Ans 1. 10%
x
2. 5%
.e
3. 1%
4. 18 %
w
Question ID : 5038903816
w
Status : Answered
Chosen Option : 3
w
Find Z11.
Ans 1. (1–j2)Ω
2. (5+j10)Ω
3. (5+j15)Ω
4. (3–j4)Ω
m
Question ID : 5038903793
Status : Answered
Chosen Option : 2
o
.c
Q.75 Identify the exponential sequence graph from the following.
Ans
1.
ix
m
am
2.
x
.e
w
3.
w
w
4.
Question ID : 5038903813
Status : Answered
Chosen Option : 1
2. Robot
4. Gas tandoor
Question ID : 5038903773
Status : Answered
Chosen Option : 4
Q.77 ________ is a type of interactive entertainment electronic device developed in Japan in which
people sing along to recorded music using a microphone.
m
Ans 1. Karaoke machine
2. Synthesiser keyboard
o
3. Smartphone
.c
4. Radio
Question ID : 5038903766
ix
Status : Answered
Chosen Option : 1
m
x am
.e
w
w
w
Ans
1.
m
2.
o
.c
ix
3. m
am
4.
x
.e
Question ID : 5038903740
Status : Answered
Chosen Option : 2
w
The directed sum of the potential differences (voltages) around any closed loop is zero.
Ans 1. Kirchhoff's fourth law
w
Question ID : 5038903763
Status : Answered
Chosen Option : 3
o m
.c
Ans 1. Hartley oscillator
ix
2. Wein bridge oscillator m
3. Colpitts oscillator
4. Tuned collector
m
Question ID : 5038903804
Status : Answered
xa
Chosen Option : 1
Given: Gain of pnp transistor = 0.4, gain of npn transistor = 0.5, gate current = 60 mA.
Ans 1. 150 mA
w
2. 250 mA
3. 200 mA
w
4. 300 mA
w
Question ID : 5038903758
Status : Answered
Chosen Option : 1
2. Light
3. Sound
4. Heat
Question ID : 5038903701
Status : Answered
Chosen Option : 3
Question ID : 5038903770
Status : Answered
Chosen Option : 3
m
halfwave rectifier.
3. They have low power loss because no voltage signal is wasted in the rectification
o
process.
4. The centre-tapped rectifier is more expensive than a half-wave rectifier and tends to
.c
occupy a lot of space.
Question ID : 5038903798
ix
Status : Answered
Chosen Option : 4
m
Q.85 Find the illuminance from a lamp at half distance if the illuminance is 20 lm/m2 from a lamp
at distance 1 metre.
am
Ans 1. 40 lm/m2
2. 30 lm/m2
3. 80 lm/m2
x
4. 60 lm/m2
.e
Question ID : 5038903755
Status : Answered
w
Chosen Option : 3
w
w
2. Test 91!
3. Hello 91!
4. Test 91!
Test 91!
Question ID : 5038903822
m
Status : Answered
Chosen Option : 2
o
Q.87
.c
Ans 1. 1.5
2. 1.9
ix
3. 2.03 m
4. 4.2
Question ID : 5038903761
m
Status : Answered
Chosen Option : 1
xa
.e
w
w
w
o m
.c
Ans 1. Conductor
ix
2. Amplifier
3. Transistor
4. Tweeter
m
m
Question ID : 5038903833
Status : Answered
Chosen Option : 2
xa
Q.89
.e
w
w
w
Find Vab.
Ans 1. 120 V
2. 90 V
3. 48 V
4. 36 V
Question ID : 5038903687
Status : Answered
Chosen Option : 1
Ans 1. rheostat
2. capacitor
3. inductor
4. diode
Question ID : 5038903692
Status : Answered
Chosen Option : 1
o m
.c
ix
m
am
x
.e
w
w
w
o m
.c
ix
m
m
xa
.e
w
w
Question ID : 5038903717
Status : Answered
Chosen Option : 1
Question ID : 5038903756
Status : Answered
Chosen Option : 2
Q.93
o m
.c
ix
m
m
Find the EMF of the battery shown in the figure. The voltage drop across the 8 Ω resistor is
20 V.
Ans 1. 43.5 V
xa
2. 67.3 V
3. 52 V
.e
4. 24 V
w
Question ID : 5038903696
Status : Answered
Chosen Option : 2
w
Q.94 A PLC is a computer specially designed to operate reliably under harsh industrial
w
environments such as extreme temperatures, wet, dry, and/or dusty conditions. What is the
full form of PLC?
Ans 1. Professional Logic Computer
Question ID : 5038903784
Status : Answered
Chosen Option : 4
Ans 1. b, d, f
2. a, c, e
3. a, b, c
4. a, d, f
Question ID : 5038903705
m
Status : Answered
Chosen Option : 4
o
Q.96 Which option describes guard band?
.c
Ans 1. The spectrum acquired by the noise between the signal.
2. The small unused bandwidth between the frequency channels to avoid interference.
ix
3. The bandwidth allotted to the signal. m
4. The channel spectrum.
Question ID : 5038903829
m
Status : Answered
Chosen Option : 2
xa
Q.97 A ___________ consists of a central thin conducting strip of width ω which is greater than its
thickness t. It is placed inside the low loss dielectric (εr) substrate of thickness b/2
between two wide ground plates. The width of the ground plates is five times greater than
.e
the spacing between the plates. These are the planar transmission lines, used at
frequencies from 100MHz to 100GHz.
Ans 1. micro strip line
w
2. slot line
w
4. strip line
w
Question ID : 5038903797
Status : Answered
Chosen Option : 3
2. refractive index
3. numerical aperture
4. acceptance angle
Question ID : 5038903805
Status : Answered
Chosen Option : 1
int main()
{
m
int a = 5;
scanf("%d",a);
return 0;
o
}
Ans 1. A
.c
2. 0
ix
3. Abnormal termination of program
4. 5 m
Question ID : 5038903823
Status : Answered
am
Chosen Option : 3
Q.100 The working principle of a PLC is based on cyclic scanning method known as the scan
cycle. Identify the correct sequence of steps.
x
2. c-a-b-d
w
3. a-d-b-c
4. c-b-a-d
w
Question ID : 5038903785
Status : Answered
Chosen Option : 2
Ans 1. X1 = L; X2 = C; X3 = C
2. X1 = C; X2 = C; X3 = L
m
3. X1 = C; X2 = L; X3 = C
4. X1 = L; X2 = C; X3 = L
o
Question ID : 5038903732
.c
Status : Answered
Chosen Option : 2
ix
Q.102 Some of the physical and functional advantages of the optical fibre communication are
m
mentioned here. Select the option which tells about functional advantages of optical fibre
communication.
I. The transmission bandwidth of the fibre optic cables is higher than the metal cables.
am
II. Since these cables are di-electric, no spark hazards are present.
III. Fibre optic cables last longer than copper cables.
IV. The amount of data transmission is higher in fibre optic cables.
V. Fibre optic cables are immune to electromagnetic interference.
VI. These are not affected by electrical noise.
Ans
x
1. I, IV, V, VI
2. II, III, V, VI
.e
3. I, II, V, VI
w
4. II, IV, V, VI
w
Question ID : 5038903810
Status : Answered
Chosen Option : 1
w
Q.103 There are various impacts of government policy changes on business and industry. Out of
the following options, which is NOT true about the given statement?
Ans 1. Government is making these policies only to attract votes
Question ID : 5038903765
Status : Answered
Chosen Option : 1
o m
Ans 1. 1-d, 2-b, 3-c, 4-a
.c
2. 1-b, 2-d, 3-a, 4-c
ix
4. 1-c, 2-a, 3-d, 4-b m
Question ID : 5038903749
Status : Answered
m
Chosen Option : 4
xa
Q.105 After the execution of the given statements, determine the status of PSW.
MOV A,#OBFH
ADD A,#1BH
Ans
.e
1. 11010001
2. 01011011
w
3. 01000001
4. 10100001
w
Question ID : 5038903777
w
Status : Answered
Chosen Option : 1
o m
Ans 1. Schottky emission
.c
2. Thermionic emission
3. Photo-electric emission
ix
4. Photo-excited emission m
Question ID : 5038903723
Status : Answered
m
Chosen Option : 3
Ans 1. Thermistors
2. Thyristors
.e
3. Resistors
4. Diodes
w
Question ID : 5038903760
w
Status : Answered
Chosen Option : 1
w
m
Ans 1. 1-c, 2-b, 3-a
o
3. 1-b, 2-a, 3-c
.c
4. 1-c, 2-a, 3-b
Question ID : 5038903818
ix
Status : Answered
Chosen Option : 4
m
Q.109 Select the option that is true regarding the following two statements labelled Assertion (A)
and Reason (R).
m
Assertion (A): Whenever we measure an electrical signal, there are chances of over current
which leads to overheating of the meter. In such cases, the meter can be protected by using
semiconductor diode of suitable rating.
xa
Reason (R): As soon as the diode is short-circuited, the meter current is diverted through
the diode. As a result, the meter is being protected from excess heating.
Ans
.e
Question ID : 5038903719
w
Status : Answered
Chosen Option : 3
Q.110 Rita attended the workshop arranged by the Energy department to emphasise on effective
use of electrical energy while using kitchen appliances. Some of the points are listed here.
Select the inappropriate option.
Ans 1. Soak the food ahead of cooking
Question ID : 5038903752
Status : Answered
Chosen Option : 4
With reference to the given figure, four different types of satellite orbits have been
identified. These are:
Ans 1. MEO, HEO, LEO, GEO
m
2. GEO, MEO, HEO, LEO
o
4. HEO, LEO, GEO, MEO
.c
Question ID : 5038903827
ix
Status : Answered
m Chosen Option : 2
3. Crystal microphones
xa
Question ID : 5038903703
Status : Answered
Chosen Option : 3
w
Q.113
w
w
Ans 1. 85 V
2. 96.5 V
3. 105 V
4. 75 V
Question ID : 5038903792
Status : Answered
Chosen Option : 2
1) 01H is added
2) the content of the accumulator is incremented
Ans 1. 1) CY=0, S=0, Z=1
2) CY=1, S=1, Z=0
2. 1) CY=1, S=0, Z=1
2) CY=same as previous state, S=0, Z=1
3. 1) CY=0, S=0, Z=0
2) CY=same as previous state, S=1, Z=1
4. 1) CY=1, S=0, Z=0
2) CY=1, S=0, Z=0
Question ID : 5038903782
Status : Answered
Chosen Option : 2
m
Q.115 Identify the given circuit.
o
.c
ix
Ans 1. Full wave rectifier
4. Step up transformer
Question ID : 5038903729
Status : Answered
x
Chosen Option : 2
.e
Q.116 While going out, Shayana used to check whether the door of the refrigerator is closed
properly, the electrical appliances which aren’t in use are switched off, all the lights, fans,
w
AC buttons are off, all doors and windows are properly closed and locked. According to you,
which activity of Shayana does NOT impact energy conservation?
Ans 1. Doors and windows are properly closed and locked
w
Question ID : 5038903750
Status : Answered
Chosen Option : 1
2. A. (B’+C’)
3. A. (B+C’)
4. A’. (B’+C’)
Question ID : 5038903721
m
Status : Answered
Chosen Option : 3
o
Q.118 PAM, PPM, PWM are examples of __________.
.c
Ans 1. altitude modulation
2. angular modulation
ix
3. digital modulation m
4. analogue modulation
Question ID : 5038903815
am
Status : Answered
Chosen Option : 3
Q.119 Which of the following is NOT an advantage of power factor improvement using capacitor?
x
Question ID : 5038903754
Status : Answered
w
Chosen Option : 1
Q.120 There are many types of microphones available in the market. Each has certain advantages
and disadvantages. Hence, the selection of a microphone depends upon the characteristics.
Some of the characteristics are mentioned here. Select the INCORRECT option.
Ans 1. Look and price
2. Output level
3. Frequency response
4. Output impedance
Question ID : 5038903702
Status : Answered
Chosen Option : 1
2. Cooperative scheduling
3. Variable scheduling
4. Preemptive scheduling
Question ID : 5038903776
Status : Answered
Chosen Option : 2
Q.122 Find the power absorbed by the coil when connected across 120 V DC supply having the
following coil specifications.
Coil consists of 3000 turns of copper wire with cross-section area 0.8 mm2, mean length
per turn is 80 cm, resistivity of copper is 0.02 mΩ.
Ans 1. 240 W
m
2. 110 W
3. 302.5 W
o
4. 160 W
.c
Question ID : 5038903684
ix
Status : Answered
m Chosen Option : 4
Question ID : 5038903716
Status : Answered
Chosen Option : 3
2. Class C
3. Class AB
4. Class B
Question ID : 5038903725
Status : Answered
Chosen Option : 2
Q.125 A 500-watt carrier is modulated to a depth of 80%. Calculate the total power in the
modulated wave.
Ans 1. 512.5 W
2. 500 W
m
3. 450 W
4. 660 W
o
.c
Question ID : 5038903814
Status : Answered
Chosen Option : 4
ix
Q.126 Which type of noise is produced in a microwave tube due to random nature of emission and
electron flow?
m
Ans 1. Rutherford noise
am
2. Partition noise
3. Shot noise
4. Becquerel noise
x
Question ID : 5038903791
.e
Status : Answered
Chosen Option : 3
w
Q.127 The most abundant and geographically dispersed fossil fuel is:
Ans 1. natural gas
w
2. coal
w
3. biomass
4. oil
Question ID : 5038903751
Status : Answered
Chosen Option : 2
m
Ans 1. Light dependent resistor
o
2. Metal film resistor
.c
3. Carbon film resistor
ix Question ID : 5038903691
m Status : Answered
Chosen Option : 4
m
Q.129 _______ is a function for which the number of minterms and number of maxterms are same.
Ans 1. Boolean
xa
2. Universal
3. Self dual
.e
4. Neutral
Question ID : 5038903713
w
Status : Answered
Chosen Option : 3
w
2. 65 × 10-2 Ω – 5 percent
3. 65 × 10-2 Ω ± 5 percent
4. 65 × 10-2 Ω
Question ID : 5038903806
Status : Answered
Chosen Option : 3
Question ID : 5038903709
Status : Answered
Chosen Option : 4
Q.132 A __________ consists basically of a microphone, amplifier and speakers to facilitate the
communication of intelligent speech to a group of people.
Ans 1. public address system
2. cross-over network
m
3. hi-fi system
o
.c
Question ID : 5038903826
Status : Answered
Chosen Option : 1
ix
Q.133 The optical fibre wires have replaced the copper wire as transmission cable since it has
m
more advantages than the electric cables. Out of the following options, which one is seen to
be a disadvantage rather than an advantage?
Ans 1. Delicate handling
am
3. Easy amplification
4. Small losses
x
.e
Question ID : 5038903807
Status : Answered
Chosen Option : 1
w
2. 18-27 GHz
w
3. 2-4 GHz
4. 12-18 GHz
Question ID : 5038903788
Status : Answered
Chosen Option : 2
Ans 1. 8A
2. 3A
3. 5A
4. 15A
m
Question ID : 5038903727
o
Status : Answered
Chosen Option : 1
.c
Q.136 Determine the output of the following.
ix
#include
int f(int a)
{
a>20?return(10):return(20);
m
}
int main()
am
{
int b;
b=f(20);
printf(“%d\n”,b);
return 0;
}
x
3. No error
w
Question ID : 5038903700
Status : Answered
w
Chosen Option : 2
2. 1.0-1.5
3. 0.3-1.0
4. 0.2-0.45
Question ID : 5038903809
Status : Answered
Chosen Option : 2
Question ID : 5038903706
Status : Answered
Chosen Option : 4
Q.139 The most commonly used feedback arrangement in cascaded amplifier is:
Ans 1. current shunt feedback
m
2. frequency series feedback
o
4. voltage series feedback
.c
Question ID : 5038903726
ix
Status : Answered
m Chosen Option : 4
Q.140 Which of the following is NOT an external factor acting as a barrier to entrepreneurship?
Ans 1. Socio-cultural factors
am
2. Economic condition
3. Experience
4. Competition
x
.e
Question ID : 5038903768
Status : Answered
Chosen Option : 1
w
Ans 1. Speed
2. Malware attack
w
3. Automatic dialling
4. Signal conversion
Question ID : 5038903831
Status : Answered
Chosen Option : 2
2. indicating instruments
3. integrating instruments
4. recording instruments
Question ID : 5038903747
Status : Answered
Chosen Option : 3
Q.143
o m
.c
ix
m
m
Find R, where all resistances are in Ohm and voltage across 500-ohm resistor is 2.5V.
Ans 1. 50 Ω
xa
2. 25 Ω
3. 233 Ω
.e
4. 230 Ω
w
Question ID : 5038903685
Status : Answered
Chosen Option : 3
w
2. Facing certainty
3. Self-discipline
Question ID : 5038903767
Status : Answered
Chosen Option : 2
2. 2-5%
3. 20-60%
4. 5-10%
Question ID : 5038903790
Status : Answered
Chosen Option : 1
Q.146 __________ instruments give the value of measurand in terms of instrument constant and its
deflection.
Ans 1. Integral
2. Active
m
3. Secondary
4. Absolute
o
.c
Question ID : 5038903746
Status : Answered
Chosen Option : 4
ix
Ans 1. 21
m
2. 8
am
3. 16
4. 11
x
Question ID : 5038903772
Status : Answered
.e
Chosen Option : 2
Q.148 _________ converts change in temperatures of its metallic junction to electrical voltage.
w
Ans 1. Thermocouple
w
2. Actuator
3. Thermistor
w
4. Electrometer
Question ID : 5038903688
Status : Answered
Chosen Option : 1
Assertion (A): Avalanche breakdown is reversible while Zener breakdown is not reversible.
Reason (R): Avalanche breakdown can be reversible if we put a series resistor in a diode.
Ans 1. A is true but R is false
Question ID : 5038903739
Status : Answered
Chosen Option : 2
m
Ans 1. 5-12 V
2. 1.7-3.3 V
o
3. 5-12 mV
.c
4. 1.7-3.3 mV
Question ID : 5038903708
ix
Status : Answered
Chosen Option : 2
m
Section : General Knowledge or Awareness
am
Q.1 What is the large part of the northern plain lying above the floodplains, formed of older
alluvium, presenting a terrace-like structure called?
Ans 1. Bhabhar
2. Khadar
x
3. Bhangar
.e
4. Jhajjar
w
Question ID : 5038903840
Status : Answered
w
Chosen Option : 1
w
Q.2 Which of the following is the majestic mausoleum of Mohammed Adil Shah?
Ans 1. NeelaGumbad
2. ChotaImambara
3. Chini Ka Rauza
4. Gol Gumbaz
Question ID : 5038903835
Status : Answered
Chosen Option : 4
2. conduction
3. radiation
4. melting
Question ID : 5038903839
Status : Answered
Chosen Option : 1
Q.4 Which Article of the Constitution of India talks about the abolition of untouchability?
Ans 1. Article 18
2. Article 17
m
3. Article 12
4. Article 13
o
Question ID : 5038903849
.c
Status : Answered
Chosen Option : 2
ix
Q.5 The Comptroller and Auditor General of India holds office for a term of ______ years or till he
attains the age of _______ years, whichever is earlier.
Ans 1. five; sixty
m
2. six; sixty
am
3. five; sixty-five
4. six; sixty-five
x
Question ID : 5038903851
Status : Answered
.e
Chosen Option : 3
Q.6 Also called the ‘Monsoon Forests’, _________ are the most widespread in India.
w
3. mangrove forests
w
Question ID : 5038903842
Status : Answered
Chosen Option : 4
2. Shehnai
3. Sitar
4. Tabla
Question ID : 5038903834
Status : Answered
Chosen Option : 4
Q.8 A person shall NOT be qualified for appointment as a Judge of Supreme Court unless he
has been for at least ______ years an advocate of a High Court or of two or more such courts
in succession.
Ans 1. five
m
2. seven
3. ten
o
4. three
.c
Question ID : 5038903850
ix
Status : Answered
m Chosen Option : 3
Q.9 ____________ is inflammation of the thin tissue that surrounds the brain and spinal cord.
Ans 1. Hepatitis
am
2. Scleroderma
3. Meningitis
4. Arthritis
x
.e
Question ID : 5038903838
Status : Answered
Chosen Option : 2
w
Q.10 According to the Economic Survey 2019-20, India’s GDP growth moderated to ________in H1
of 2019-20, amidst a weak environment for global manufacturing, trade and demand.
w
2. 4.2 percent
3. 4.8 percent
4. 5.8 percent
Question ID : 5038903837
Status : Answered
Chosen Option : 2
2. MAITREE
3. BONGOSAGAR
4. TSENTR
Question ID : 5038903846
Status : Answered
Chosen Option : 2
Q.12 Which of the following causes rainfall during winters in the north-western part of India?
Ans 1. Southwest monsoon
2. Retreating monsoon
m
3. Western cyclonic disturbances
4. Cyclonic depression
o
.c
Question ID : 5038903841
Status : Answered
Chosen Option : 3
ix
Q.13 In which city is the head office of the Insurance Regulatory and Development Authority of
India (IRDAI) situated?
m
Ans 1. Shimla
am
2. Kolkata
3. Chandigarh
4. Hyderabad
x
Question ID : 5038903836
.e
Status : Answered
Chosen Option : 2
w
Q.14 In which session of the Indian National Congress was the national song ‘Vande Mataram’
sung for the first time?
w
2. Mumbai, 1889
w
3. Lahore, 1909
4. Varanasi, 1905
Question ID : 5038903845
Status : Answered
Chosen Option : 3
2. Khudiram Bose
3. Ashfaqulla Khan
4. Rajendra Lahiri
Question ID : 5038903844
Status : Answered
Chosen Option : 1
Q.16 Which city hosted the third India-USA 2 + 2 Ministerial Dialogue in October 2020?
Ans 1. New York
2. New Delhi
m
3. Hyderabad
4. Washington, D.C.
o
Question ID : 5038903848
.c
Status : Answered
Chosen Option : 4
ix
Q.17 King Kanishka of ancient India belonged to which of the following dynasties?
Ans 1. Maurya
m
2. Shunga
am
3. Kanva
4. Kushan
Question ID : 5038903843
x
Status : Answered
Chosen Option : 4
.e
Q.18 Which of the following was the venue for the first Australia vs India test match during the
Border-Gavaskar Trophy 2020-21?
w
Question ID : 5038903852
Status : Answered
Chosen Option : 3
2. ATGM Nag
3. Rudram-1
4. Pinaka-1
Question ID : 5038903847
Status : Answered
Chosen Option : 1
Q.20 In December 2020, who among the following equalled Pele's record of 643 goals for a single
club?
Ans 1. Neymar da Silva
m
2. Cristiano Ronaldo
3. Lionel Messi
o
4. Kylian Mbappe
.c
Question ID : 5038903853
Status : Answered
ix
Chosen Option : 2
Section : Reasoning
m
Q.1 Two positions of a dice — marked with letters/symbols S, T, $, &, @ and % — are shown
am
below. Identify the letter/symbol on the face opposite to the face having symbol @ on it.
x
.e
w
Ans 1. &
2. $
w
3. %
w
4. S
Question ID : 5038903873
Status : Answered
Chosen Option : 4
2. Mother-in law
3. Sister
4. Mother
Question ID : 5038903861
Status : Answered
Chosen Option : 1
Q.3 Two statements are given followed by two conclusions I and II. You have to consider the
two statements to be true even if they seem to be at variance from commonly known facts
and then decide which of the given conclusion(s) logically follows/follow from the given
statements.
m
Statements:
All Crows are Birds.
Some Elephants are Crows.
o
Conclusions:
I. Some Elephants are Birds.
.c
II. All Crows are Elephants.
Ans 1. Neither conclusion I nor II follows.
ix
2. Both conclusions I and II follow.
Question ID : 5038903862
Status : Answered
Chosen Option : 4
x
.e
w
w
w
1.
2.
o m
.c
3.
ix
m
am
4.
x
Question ID : 5038903866
.e
Status : Answered
Chosen Option : 4
w
Q.5 If ‘Red’ is called ‘Green’, ‘Green’ is called ‘White’, ‘White’ is called ‘Violet’, ‘Violet’ is called
‘Orange’, and ‘Orange’ is called ‘Blue’, then the colour of buffalo milk is:
w
Ans 1. Green
2. White
w
3. Orange
4. Violet
Question ID : 5038903859
Status : Answered
Chosen Option : 4
2. 24
3. 10
4. 20
Question ID : 5038903865
Status : Answered
Chosen Option : 1
Q.7 Select the option that is related to the third word in the same way as the second word is
related to the first word.
MASK : FACE :: GLOVES : ?
m
Ans 1. Thigh
2. Shoulder
o
3. Neck
.c
4. Palm
Question ID : 5038903857
ix
Status : Answered
Chosen Option : 4
m
Q.8 The given question consists of a statement, followed by two arguments numbered I and II.
You have to decide which of the argument(s) is(are) 'strong' and accordingly select the
am
correct option.
Statement:
Plastic bags should be banned.
Arguments:
x
I. Yes, because unlike reusable fabric bags, plastic bags take very long time to biodegrade
and also create several health issues.
.e
II. No, plastic bags should not be banned as they make our life very easy.
Ans 1. None of the arguments is strong.
w
Question ID : 5038903863
Status : Answered
Chosen Option : 3
2. P
3. R
4. S
Question ID : 5038903860
Status : Answered
Chosen Option : 2
o m
.c
Ans 1. 12
ix
2. 10
m
3. 14
am
4. 13
Question ID : 5038903872
Status : Answered
x
Chosen Option : 3
.e
w
w
w
Ans
1.
o m
2.
.c
ix
m
m
3.
xa
.e
4.
w
w
Question ID : 5038903871
w
Status : Answered
Chosen Option : 2
Q.12 Which number will replace the question mark (?) in the following series:
25, 216, 49, 512, ?
Ans 1. 81
2. 729
3. 625
4. 64
Question ID : 5038903864
Status : Answered
Chosen Option : 1
Ans
1.
o m
.c
2.
ix
m
am
3.
x
.e
w
w
4.
w
Question ID : 5038903869
Status : Answered
Chosen Option : 3
2. E20S
3. F28R
4. G24T
Question ID : 5038903855
Status : Answered
Chosen Option : 1
o m
.c
ix
m
x am
.e
w
w
w
Ans
1.
o m
2.
.c
ix
m
m
3.
xa
.e
w
4.
w
w
Question ID : 5038903870
Status : Answered
Chosen Option : 2
2. 23
3. 20
m
4. 15
Question ID : 5038903867
o
Status : Answered
Chosen Option : 3
.c
Q.17 Rajeev is facing towards North. He turns 90 degrees clockwise and moves 2 km straight.
ix
Then he turns 270 degrees clockwise and moves 4 km. He further turns towards his left and
moves 2 km to reach a shop. What is the shortest distance of this shop from his initial
position?
Ans 1. 2 km
m
2. 3 km
am
3. 4 km
4. 6 km
x
Question ID : 5038903868
Status : Answered
.e
Chosen Option : 3
Q.18 In a certain coding system, if "CROW" is coded as 7-21-17-24 and "BIRD" is coded as 6-12-
w
20-5, then what will be the code for "LION" in the same coding system?
Ans 1. 14-12-19-15
w
2. 16-14-18-14
w
3. 12-13-17-14
4. 16-12-17-15
Question ID : 5038903858
Status : Answered
Chosen Option : 4
2. PFIM
3. VLOS
4. SDLV
Question ID : 5038903856
Status : Answered
Chosen Option : 1
Q.20 Which letter cluster from the options will replace the question mark in the following series:
BDVY, EHQS, HLLM, KPGG, ?
Ans 1. OSCD
m
2. NTBA
3. NTYM
o
4. PTBB
.c
Question ID : 5038903854
ix
Status : Answered
m Chosen Option : 3
2. सं दान कारक
x
3. अपादान कारक
4. अ धकरण कारक
.e
Question ID : 5038903878
w
Status : Answered
Chosen Option : 4
w
Question ID : 5038903879
Status : Answered
Chosen Option : 4
2. पुतगाली
3. फारसी
4. अरबी
Question ID : 5038903882
Status : Answered
Chosen Option : 4
2. मनायोग
m
3. मनोयोग
4. मनयोग
o
Question ID : 5038903876
.c
Status : Answered
Chosen Option : 3
ix
Q.5 संतोष' का सही सं ध- व छे द या होगा? m
Ans 1. सन् + तोष
2. सम + तोष
am
3. सम् + तोष
4. स त + ओष
Question ID : 5038903875
x
Status : Answered
.e
Chosen Option : 3
Ans 1. व + आ यास
w
2. व ा + अ यास
3. व ा + यास
w
4. व + अ यास
Question ID : 5038903874
Status : Answered
Chosen Option : 2
2. दा मनी
3. सौदा मनी
4. या मनी
Question ID : 5038903881
Status : Answered
Chosen Option : 4
2. ,
m
3. ;
4. :
o
Question ID : 5038903883
.c
Status : Answered
Chosen Option : 2
ix
Q.9 दानवीर' म कौन सा समास है? m
Ans 1. त पु ष
2. गु
am
3. ं
4. अ यी भाव
Question ID : 5038903877
x
Status : Answered
.e
Chosen Option : 1
Ans 1. अर वद
w
2. सुधांशु
3. मृगांक
w
4. सारंग
Question ID : 5038903880
Status : Answered
Chosen Option : 4