MPPSC AE 2020: State Engineering Service Examination, Electrical Engineering
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SEE/EE/2020 ■
SET (Electrical Engineering)
fer ITTI ij
'Candidate should write his/her
Roll No. Roll No. in the given boxes
^^wn/No.of Printed Pages:32 ^wn/Total No. of Questions:150
Wl/Time:StrJ^/Hours ^J^/Total Marks:450
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INSTRUCTIONS TO THE CANDIDATES '
1. Immediately after the commencement of the examination, you should check that this Question Booklet
does not have any unprinted or torn or missing pages or items etc. If so, immediately contact the invigilator
and get it replaced with Question Booklet.
2. This combined Question Booklet is divided in two Sections. Section -'A' and Section -'B'.
3. Section -'A'contains 50 Questions of General Studies. All Questions are in Hindi and English Language.
All questions are compulsory.
4. Section -'B' contains ICQ Questions of Concerned Engineering Subject. Question are only in English
Language. All questions are compulsory. Candidates should ensure that he/she got the question paper
of the same post for which he/she had applied.
5. All questions carry equal marks. Three marks for each correct answer. There is provision of Negative
Markings. For each wrong answer, one mark will be deducted.
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accordingly.
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Question Booklet and nowhere else, not even on the Answer Sheet(OMR).
9. Only simple calculator is allowed to solve the Question Paper. Scientific/Engineering calculator will not
be allowed.
10. If there is any sort of mistake either of printing or of factual nature in any question of Section - A, then
out of the Hindi and English versions of the question, the Hindi version will be treated as standard.
SEE/EE/2020-A 1
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SECTION - A
1. Malanjkhand is famous for which of the 5. Vindhyachal Super Thermal Power
following mineral ? Station is established in which of the
following district ?
(A) Bauxite
(A) Shahdol
(8) Copper
(B) BetuI
(C) Dolomite (0) Umaria
(0) Limestone (D) Singrauli
2. Bansagar Project is situated on which 6. Number of moveable joints in robot is
of the following river ? called
(A) Ken (A) Degree of independence
(B) Betwa (B) Degree of joints
(C) Son (C) Degree of freedom
(D) Dhasan (D) Degree of movement
3. In Madhya Pradesh, which of the
7. Technique to verify message integrity is
following resources has the highest
known as
established capacity among the
non-conventional sources of energy ? (A) Message encrypt
(A) Wind energy (B) Message checksum
(B) Solar energy
(C) Message digest
(C) Biomass energy
(D) None of the above
(D) Energy from garbage
8. is a software program that
4. Which of the following sources has filters all the data coming through the
highest proportion of irrigation in Madhya internet.
Pradesh ?
(A) Antivirus
(A) Canals
(B) Tanks (B) Cookies
(C) Wells-tubewells (C) Malware
(D) Other sources (D) Firewall
SEE/EE/2020-A [ P.T.O.
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9. Infrastructure aspects provided by 12. Which of the following is a famous
Government in formation of National folk-drama of Malwa ?
e-Governance Plan for application and (A) Hingola
data hosting and connectivity are (B) Chhahur
(C) Mansukha
(A) SDC,SWAN and ESDG
(D) Maach
(B) SWAN,SDC and NIC
13. What was the ancient name of
(C) SWAN,SDLC and NISG
Baghelkhand ?
(D) None of these (A) Karush
(B) Mahishmati
(C) Teerbhukti
(D) Shuktimati
10. The scope of cyber security is
(A) Vulnerability reduction 14. The famous Chandela Generals AIha
and Udal lost their lives while fighting
(B) Incident response against which ruler ?
(A) Ajayraj
(C) Recovery policy
(B) Amoraj
(D) All of the above (C) Sindhuraj
(D) Prithviraj Chauhan
11. Which of the following folk-dance is not 15. Which ofthe following is nota composition
associated to Nimari folk-dance ? of Pandit Makhanlal Chaturvedi ?
(A) Gangour (A) Himkiritani
(B) Rai (B) Bijuri
(C) Himtarangini
(C) Kathi
(D) Rasikpriya
(D) Fefariya
SEE/EE/2020-A [ P.T.O.
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16. On what dates were the Olympic Games 19. On which date the National Education
held in Tokyo ? Policy 2020 was launched by the
Government of Madhya Pradesh ?
(A) 21 July to 5 August 2021
(A) 16 August 2021
(B) 22 July to 10 August 2021
(B) 26 August 2021
(0) 22 July to 11 August 2021
(C) 28 August 2021
(D) 23 July to 8 August 2021
(D) 30 August 2021
17. Where is the 2024 Olympic Games
Scheduled to be held ? 20. How manygold medals did the Indian team
win in the Paralympics held in 2021 ?
(A) Pans
(B) London
(C) Johannesburg
(D) Budapest (D 19
18. On which date the Arogya Setu App was 21. Ram occurs in the month of August in
Madhya Pradesh is mainly receives from
launched by the Government of India ?
which of the following ?
(A 17 June 2021
(A) North-Eastern Monsoon
(B) 17 January 2021 (B) South-Western Monsoon
(C) 2 April 2020 (C) Winter Monsoon
(D) 14 March 2020 (D) Cyclonic Ram
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22. Acxx)rding to the Government of Madhya 26. Who among the following is not a
Pradesh,what percentage ofthefollowing Bundeli writer ?
area is under protected forests out of the
total forest area ? (A) Jagnik
(A) 45.6% (B) Maharaj Vishwanath Singh
(B) 44.8% (C) Isuri
(C) 32.8%
(D) Gangadhar Vyas
(D) 70.2%
23. Which of the following mountain range is 27. In which district of Madhya Pradesh,
situated between Narmada-Tapti rivers Jageshwari fair is organized ?
and South of the Son river ?
(A) Satna
(A) Kaimur range
(B) Ashok-nagar
(B) Bhander range
(C) Vindhyachal range (C) Balaghat
(D) Satpura-Maikal range (D) Badwani
24. Which is the origin of the West direction 28. Which revolutionary was hanged by the
flowing river Tapti (Tapi)? British Government during the Bundela
(A) Shahpur rebellion ?
(A) Madhukar Shah of Narhot
(B) Chicholi
(B) Bandeshah of Bhanpur
(C) Bhainsdehi
(C) Jujhar Singh of Herapur
(D) Multai
(D) None of these
25. Which of the following is the share of
Madhya Pradesh in the total manganese 29. According to the Baiga tradition, who was
production of the country ? the Greater of the Universe ?
(A) 18.84% (A) Thakurdev
(B) 15.02% (B) Indradev
(G) 12.50% (C) Agnidev
(D) 4.56%
(D) Somdev
SEE/EE/2020-A [ P.T.O.
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30. Thefamous artist Annasaheb Raghunath 33. Which of these is used as CPU in
K. Phadke is associated with which of computer ?
the following art ?
(A) Microprocessor
(A) Sculpture
(B) Microcontroller
(B) Dance
(0) Microcomputer
(C) Music
(D) Microprogrammer
(D) Painting
34. How many megabytes represent one
gigabyte (in binary)?
31. Which of these is not an open source (A) 2048
Operating System ? (B) 1024
(A) UNIX (C) 1024x1024
(D) 1048
(B) ANDROID
(0) WINDOWS 35. The space in which a robot operates is
called
(D) None of these (A) Environment
(B) Spatial space
(0) Workspace
(D) Work envelope
32. (1101 0001)2 binary number is same as
( )q octal number.
36. In which Article of the Constitution, the
function of the Council of Ministers is
(A) (321),
said to "Assistance and Advise" the
Governor ?
(B) (123)3
(A) Article-162
(C) (641)3 (B) Article-163
(C) Article-164
(D) (146), (D) Article-165
SEE/EE/2020-A [ P.T.O.
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37. What IS the level of Panchayati Raj 41. In which year the Sports Authority of
System in Madhya Pradesh ? India was established ?
(A) Two tier
(B) Three tier (A 1976
(C) Four tier
B 1981
(D) None of these
C 1984
38. The scheme One Stop Center (Sakhi)
is related with
D 1991
(A) Providing facilities to women victims
of violence
(B) Providing ration
(C) Self employment
(D) Skill and training 42, When was the 'Ladii Lakshmi Yojna'
started by the Government of
39. The lowest population density district of
Madhya Pradesh is Madhya Pradesh ?
(A) Jhabua A 1 April 2006
(B) Mandia
(B) 1 April 2007
(C) Dindori
(D) Sidhi (0) 1 April 2008
40. Arrange the following district of Madhya (D) 1 July 2006
Pradesh in descending order of sex
ratio and select the correct answer from
below codes.
1. Mand a 43. When was the Chief Minister's Women
2. Dindori Empowerment Scheme started in
3. Alirajpur Madhya Pradesh ?
4. Balaghat
(A) April 2012
Codes:
(A) 1.2.3.4 (B July 2012
(B) 4.3.1.2
(C) 2,1.4.3 (C) September 2013
(D) 3.4.2,1 (D) November 2013
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44. From which date the present Governor of 47. In a year 2005- 06, average size of
agricultural holding in Madhya Pradesh Is
Madhya Pradesh Shri Mangu Bhal Ch.
Patel has taken over ? (A) 1.28 Hectare
A 03 July 2021 (B) 2.22 Hectare
(B) 13 July 2021 (C) 1.8 Hectare
(D) 2.25 Hectare
(C) 08 July 2021
D) 28 July 2021
48. Which district irrigated by "BenGanga"
Canal In Madhya Pradesh ?
(A) Jabalpur
B Mandia
45. In which famous place Jyotirling
Mamleshvar Is situated ? (C) Sidhi
(D) Balaghat
(A) Mandsour
(B) Omkareshvar
49. Soil Health Card Is related with
(C) Kapil Dhara (A) Use of balanced fertilizer
(B) High yields
(D) Uijain
(C) Sol! test
(D) All of the above
46. When was Chief Minister Krishak
UdhyamI Yojana launched ? 50. Lowest female literacy rate district in
Madhya Pradesh Is
(A) Year 2016-2017
(A) Jhabua
B) Year 2017-2018
(B) Alirajpur
C) Year 2018-2019 (C) Sheopur
P Year 2019-2020 (D) Barwani
[ P.T.O.
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^- ^/section-B
51. A system Is represented by the following 54, The stability of a system
differential equation
(A) decreases as the type of the system
increases
(8) increases as the type of the system
The transfer function relating X(s) and increases
U(s) is (C) does not change as the type of
system increases
Ms^ + Fs+ K (D) none of the above
55. The Routh-Hurwitz criterion gives
Ms^+Fs+ K (A) relative stability
(8) absolute stability
(C) gain margin
Ms^ + Fs+ K (D) phase margin
56. A three-phase transformer having a
Ms^+Fs+K
line voltage ratio of 400V/33,000V is
connected in star-delta. The CTs on the
400V side have a current ratio of 1000/s.
What must be the ratio of CTs on the
52. ^ . C(s)= -5 16
For the system , 33.000V side ?
' R(s) s^+8s+16
the nature of the time response will be (A) 7/5
(8) 6/7
(A) Over damped
(C) 3/5
(8) Under damped {□) 9/7
(C) Critically damped
57. If Xg is the armature reactance of a
(D) Stability damped
synchronous machine and X, is the
leakage reactance of the same machine,
then the synchronous reactance X_ is
53. Derivative feedback control
(A) increases rise time s 2
(8) increases overshoot (B) X, = X, + X,
(0) decreases steady state error
(D) does not affect the steady state
(C) X3=1(X3-X,)
error (D) X <X
SEE/EE/2020-A
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58. A long line with no load 62. In a CSI, if the frequency of output
voltage is f Hz, then frequency of input
(A) generates capacitive reactive power
voltage to CSI is
(B) generates inductive reactive power (A) f
(C) does not generate any power
(D) generates both active and reactive
power (0) 2f
(D) 3f
59. Four identical alternators each rated for
20 MVA, 11 KV having a subtransient 63. A chopper is used to convert
reactance of 16% are working in parallel. (A) Constant D.C. to A.C. then into
The short-circuit level at the bus-bars is variable D.C. voltage
(A) 500 MVA (B) Convert fixed frequency A.C. to
variable frequency A.C. voltage
(B) 400 MVA
(C) A.C. to D.C. Voltage
(C) 125 MVA (D) Constant D.C. to variable D.C.
voltage
(D) 80 MVA
60. What is the typical value of bios setting 64. In thyristor, the effect of — can be
of percentage differential relay for reduced by using
generator ? (A) Snubber circuit
(B) Series inductor
(A) 20%
(C) Varistor
(B) 30% (D) Parallel inductor
(C) 40%
(D) 10% 65. Which one is correct for the operation of
single phase full converter (full wave)?
61. In a DC-DC chopper, the average load (A) Operate in I quadrant and
voltage V^ does not depend on IV quadrant
(B) Operate in II quadrant and
(A) Source voltage Vg IV quadrant
(B) Load current (C) Operate in II quadrant and
I quadrant
(C) Duty cycle
(D) Operate in II quadrant and
(D) Chopping period IV quadrant
SEE/Ee2Q20-A [ P.T.O.
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66. The inverse Laplace Transform of the 70. Th0 below shown waveform can be
mathematically described as
function F(s)= „ is given by
(s+ 1r +
(A) e-^ cos 3t + 4e"^ sin 3t
(B) Se-* cos 3t + 40-'sin 3t
(C) O"* cos t + 49"* sin t
(D) 0-®* cos t + 40-®* sin t
67. An expression for time dependent (A) f(t) = tu(t)-2(t-1)u(t-1)+(t-2)
voltage across a 20 pF capacitor is u(t-2)
Vc = 10.75 - 1.5 e-**"" Volt. What will
be the respective current through the (B) f(t)=t.u(t)-(t-1).u(t-1) +
capacitor ? (t-2).u(t-2)
(A) 0.33 e-*«»* Amp (C) f(t) = 2t.u(t) +(t-2).u(t-2)
(B) 3.30 0-*®™ Amp
(D) f(t) = t.u(t)-(t-1).u(t-1)
(C) 0.30 0-*®™ Amp
(D) 0.03 e-*®™ Amp
71. The function of the program counter in
microprocessor is
68. One decibel is equal to
(A) 10.15 N (A) To locate data in memory
(B) 0.115 N (B) To point to the memory address
(C) 11.15 N from which the next byte is to be
fetched
(D) 1.15 N
(C) To transfer instruction
(D) To perform arithmetic operations
69. Fourier Transform of sgn (t) function is
given by
(A) A
JCO
72. The number of address lines required to
address 64 K-byte memory is
(B) 1 (A) 11
jto
(B) 16
(C) 31
(D) 2ja) (D) 10
SEE/EE/2020-A
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73. Ei is a 77. The voltage across points A and B in the
given circuit is
(A) Control signal
(B) One byte Instruction
(C) Register
(D) Memory unit
(A) V^= 1.34V
(B) V^ = 0.134 V
74. The factor which decides a
microprocessor as an 8 bit or 16 bit (0) V^ = 13.04 V
processor is the number of (D) V^= 13.40 V
(A) Registers
(B) Data lines
78. The average power delivered to the
(0) Address bus circuit consisting of an impedance
(D) Peripheral device Z = 5 + j8 when the current flowing
through the circuit I = 5^30° is
(A) 60W
75. What is the addressing mode of the (B) 60.5 W
instruction IN 08 ? (0) 6.05 W
(D) 62.5 W
(A) Indirect
(B) immediate
79. The Laplace Transform of a delayed unit
(0) Direct
ramp function r (t - T) is given by
(D) Register
76. In a circuit with b branches and n nodes,
the number of chords will be
(A) b-n + 1
(8) b-{n + 1)
(C) b-(n-l)
(D) b + n + 1
SEE/EE/2020-A [ P.T.O.
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80. The transient in a RLC circuit is oscillatory 83. The LTI system whose system function
when is
H(s)= ^ I ^,R{s}>-2
(A) R =2^^ s +5s+6
(B) R = 0 Which of the following is true about the
given system ?
(C) R>2j| (A) The given system is causal LTI
system
(B) The given system is anticausal LTI
(D) R<2J^ system
(C) The given system is non-causal LTI
system
81. If x(t) is a signal with Nyquist rate 00^, then (D) None
the Nyquist rate of y(t) = x^(t) will be
(A) 0)^2 84. For a finite duration right sided signal,
i.e., x[n]=0for n < 0 and n > N,,for some
(B) CO, finite N^, the Region of Convergence
(RoC) will be
(C) 2co, (A) Entire z-plane
(B) A ring in z-plane
(D) 3(0,
(C) Entire z-plane except z = 0
(D) Entire z-plane except z = «>
82. The Laplace transform and Region of
85. The unit of amplitude spectral density
Convergence (RoC) of the signal,
(X(co)) is
g(t) = 8(2t) will be (A) rad/sec
(A) Laplace transform is Va and RoC (B) volt/sec
lies in left half of s-plane (C) volt/rad
(D) voit/rad/sec
(B) Laplace transform is 1/2 and RoC
lies in right half of s-plane
86. Solid angle subtended by a closed
(C) Laplace transform is 2 and RoC is surface at an external point is
the entire s-plane (A) Zero
(B) Infinity
(D) Laplace transform is Vz and RoC is
(C) 471
the entire s-plane
(D) 2k
SEE/EE/2020-A
Text of page 21
87. The variation of electric field E for point 91. In V/f operation of induction motor
charge is proportional to control, the constant maximum torque
is provided when
(A) 1/r2
(A) V/f ratio is not constant
(B) 1/r^
(B) V/f ratio is constant
(C) 1/r
(C) Voltage is increased and frequency
is decreased
(D)
"■i (D) Frequency is increased and voltage
is decreased
88. What is the boundary relation for static
electric fields for any two media with
charge at boundary in term of normal 92. A 4-point starter is required for starting
field components ? and control of a
(A) ~ ^t2 (A) dc shunt motor with armature
resistance control
(B)
(B) dc shunt motor with field weakening
(C) D^-Dn,= Ps
control
(D)
(C) dc series motor
(D) single phase induction motor
89. In a non-homogeneous region Poisson's
equation is
(A) V-eVV = -p^ 93. In synchronous machines with salient
poles, the hunting is reduced by
(B) v^V = ^ (A) Mechanical losses in the rotor
(C) V^\J = 0^ (B) Compensating winding in stator
(D) All of these (0) Damper winding in salient poles
(D) Damper winding in stator
90. Determine the force per unit length on
two long straight parallel conductors
if each carries a current of 15 A in the 94. A universal motor can be run from
same direction and the distance of
(A) dc supply only
separation is 0.5 m.
(A) 225 X 10"^ N/m (B) ac supply only
(B) 450x 10-^ N/m (0) either ac or dc
(C) 900x 10-^ N/m (D) ac supply through auto-transformer
(D) 1800x10"^ N/m only
SEE/EE/2020-A [ P.T.O.
Text of page 22
95. What is the slip of backward rotating field 98. Whenever the POP H instruction is
in single phase induction motors, when executed
using double field revolving theory ? (A) Data bytes in the HL pair are stored
on the stack
(A) 1-s
(B) Two data bytes at the top of the
(B) 2-s stack are transferred to the HL
register pair
(C) s + 1
(0) Two data bytes at the top of the
(D) zero stack are transferred to program
counter
(D) Two data bytes from the HL register
96. Write how many times the loop will be that were previously stored on the
executed ? stack are transferred back to the HL
register
LXI B, 0007 H
Loop: DCX B
MOV A, B 99. In 8255, BSR mode is used to set or
DRAG reset the bits in which of the following
ports ?
JNZ Loop
(A) B
(A) 8
(B) 0
(B) 7
(0) A
(C) 9
(D) E
(D) 3
100. Assume that the accumulator contains
97. Calculate the time to execute an data byte C2H. After executing
instruction with T states and clock CPI 98H instruction, the content of the
frequency of 2 MHz. accumulator is
(A) 3.5 m sec. (A) 00 H
(B) 3.5 sec. (B) 02 H
(C) 2.1msec. (0) 98 H
(D) 3.5 micro sec. (D) FFH
SEE/EE/2020-A
Text of page 23
101. In a large Interconnected power system, 104. For a single line to ground fault the zero
consider three buses having short-circuit sequence current is given by j 3.0 pu.
capacities 1500 MVA (1), 1200 MVA (2) The current carried by neutral during the
and 1000 MVA (3) respectively. The fault is
voltages of all the buses are 1.0 pu. If a (A) jl.Opu
3-phase fault takes place on bus 2, the
(B) j 3.0 pu
change in bus voltage is described as
(C) j 9.0 pu
(A) AV,>AV2>AV3 (D) j 6.0 pu
(B) AV,<AV3<AV3
(C) AV,>AV3>AV2
105. A transformer rated for 500 KVA,
(D) none of the above 11 KV/0.4 KV has an impedance of 10%
and is connected to an infinite bus. The
fault level of transformer is
102. An air-blast circuit breaker designed
to interrupt a transformer magnetizing (A) 500 KVA
current of ISA (rms) chops the current (B) 5000 KVA
at an instantaneous value of 12A. The
value of L and C in the circuit are 8H and (C) 500V3 KVA
0.009|xF. Find the voltage that appears
(D) none of the above
across the circuit breaker. Assume that
the inductive energy is transformed to
capacitance.
106. Which of the following diode has a
(A) 358 KV negative resistance characteristic ?
(A) Schottky diode
(B) 355 KV
(B) Tunnel diode
(C) 356 KV (C) Laser diode
(D) 352 KV (D) Hot-carrier diode
103. The number of pilot wires required for 107. A 4-bit serial-in-serial-out register will
protecting 3-phase transmission lines need clock cycles to load the
using Translay system of protection is input data and clock cycles to
read the data.
(A) 6
(A) 4.8
(B) 4
(B) 8,8
(C) 3 (C) 4.4
(D) 2 (D) 4,7
SEE/EE/2020-A [ P.T.O.
Text of page 24
108. The OP-AMP comprises of 111. A superconductor is a perfect
diamagnetic with the magnetic
(A) Direct coupled multi-stage susceptibility equal to
amplifier
(A) -1
(B) RC coupled multi-stage amplifier (B) 0
(C) Transformer coupled multi-stage (0) 1
amplifier (D) 2
(D) Only single stage differential
amplifier 112. The materials having energy gap below
2-3 eV are called
(A) Insulators
109. To implement a MOD 17 down counter (B) Conductors
minimum number of flip-flops (0) Semiconductors
will be required. (D) Superconductors
(A) 3
113. Solids that possess orientational
(B) 4 as well as electronic and ionic
polarizabilities is
(0) 5
(A) Elemental solid dielectric
(D) 6 (B) Polar solid dielectric
(0) Ionic non-planar dielectric
(D) All of these
110. The output of the following circuit will be
10KQ
114. The limits of super conductivity are
10 Kn defined by
% = 2V
10KQ
(A) The critical temperature
V2 = -2V (B) Critical magnetic field
lOKn
(C) Critical current density
(D) All of these
(A) 4V 115. The reverse recovery time of P-N junction
diode is
(B) 8V
(A) Storage time (t^)
(C) -4V (B) Transition time (tj)
(C) Sumof(t^ + t()
(D) -8V (D) None of these
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116. Which of the following statement is not 119. A circuit that produces only one pulse of
correct ? load current during one cycle of source
voltage is
(A) Power MOSFET's can be put in
(A) Single phase half wave rectifier
parallel to handle large current
(B) Single phase full wave rectifier
(B) Power MOSFET'sdo notexperience
(C) Single phase dual converter
any minority carrier storage
(D) Three phase semi converter
(C) Power MOSFET's are voltage
controlled devices
120. In the phase controlled rectifier circuit,
(D) Power MOSFET's have negative p (Beta) is called as
temperature coefficient for
resistance
(A) Delay angle
(B) Firing angle
(C) Extinction angle
117. BJT operates as a switch, in which of the (D) Conduction angle
following region ?
(A) Breakdown region
121. The inclusion of resistor R^ in an
(B) Drift region integrated OP-AMP circuit is
(C) Saturation region
(D) Emitter region
118. After firing a SCR, if the GATE pulse
is removed, the anode to cathode
conduction current of SCR will
(A) reduce high frequency gain
(A) Remain same
(B) reduce low frequency gain
(B) Immediately fall to zero
(C) does not affect gain
(C) Rise up
(D) reduce noise over entire frequency
(D) Rise and then fall to zero range uniformally
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122. Following switching functions have to 124. In a Class - A amplifier, the current in
be implemented using a active high the output circuits flows for
decoder. (A) 360°
fi=Im{1,2.4,8,10,14); (B) 180°
f2 = Im(2.5.9. 11)and (0) 90°
= Im (2, 4, 5, 6, 7) (D) 60° to 170°
What shall be the minimum size of
decoder required to implement all 125. The type of feedback in the following
expressions ? OP-AMP circuit is
(A) 2:4
(B) 3:8
(0) 4:16
(D) 5:32
123. Consider the circuit shown below where
the breakdown voltage of the diode is (A) Voltage shunt negative feedback
5 V and the input voltage varies between
6 to 12 V.
(B) Current shunt negative feedback
(C) Voltage series negative feedback
(D) Current series negative feedback
VZE 126. The root locus branches for the
T open-loop transfer function
K
G(s)=
s(s-i-l)(s+3)
Find the maximum current through R^, if of a unity feedback system intersects
R, = 2 Kn and = 5 Kti. s-plane imaginary axis at
(A) 3.5 mA (A) s = ±J 1.732
(8) 1 mA
(C) 1.4 mA (C) s=±J 1.414
(D) 0.2 mA (D) s = ±J 0.707
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127. For the open loop transfer function 131. The term that describes an instrument's
i_i/—\ K degree of freedom from random errors
G(s)H(s) = is called
s(s^ +4$+5)
(A) Accuracy
the number of breakaway point is/are
(B) Repeatability
(A) Two
(C) Reproducibility
(B) One
(D) Precision
(C) Three
(D) Nil
132. Three separate sources of systematic
errors are identified in a measurement
system and after reducing the magnitude
128. The lead compensation network is of these errors as much as possible
considered to be the magnitudes of the three errors are
estimated to be:
(A) High pass filter
System loading : ± 1.2%
(B) Low pass filter Environmental changes:0.8%
(C) Equalizer Calibration error: 0.5%
What is the value of likely system error ?
(D) None of the above
(A) ±2.5%
(B) ±0.5%
129. !n the case of over damped system rise (0) ±1.53%
time is considered as the time required (D) ±3.6%
to reach the unit step response
(A) 0 to 100% of final value 133. A null-type bridge with d.c. excitation is
(B) 10% to 90% of final value commonly known as
(A) Wheatstone bridge
(C) 0 to 90% of final value
(B) Null-type impedance bridge
(D) 10% to 100% of final value
(C) Maxwell bridge
(D) Deflection type a.c. bridge
130. The frequency at which the magnitude
of the Bode plot crosses 0 db axis is
termed as
134. The Maxwell Bridge is commonly used
to measure
(A) natural frequency
(A) Unknown resistance
(B) phase crossover frequency
(B) Unknown inductance
(C) gain crossover frequency
(0) Unknown capacitance
(D) corner frequency (D) Unknown conductance
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135. The Lissajous patterns are generated in 140. In which of the following motors, the
an oscilloscope to measure direction of rotation can not be reversed
(A) Voltage externally ?
(B) Current (A) Stepper motors
(0) Frequency
(B) Capacitor start single phase
(D) Distance Induction motors
(C) Shaded pole motors
136. In a transformer, zero voltage
regulation is (D) DC series motors
(A) Possible at unity power factor load
(B) Possible at leading power factor
load 141. Which of the following signals is a power
(0) Possible at lagging power factor signal ?
load
(D) Not possible (A) x(t) = A[u{t + a)-u (t-a)], a> 0
(B) x(t) = e-®t'i, a > 0
137. Which harmonic current is dominating in
transformer magnetizing current ? (C) x(t) = Asint
(A) 3"^ Harmonic
(D) x(t) = tu(t)
(B) 5*^ Harmonic
(0) 7^ Harmonic
(D) 13*^ Harmonic
142. The input-output relationship of the
following two systems is given as
138. An inductor motor operates as
generator when
(A) Slip is zero = sin(x(t))
Then which of the following statements
(B) Slip is greater than zero
is true ?
(0) Slip is less than zero
(D) Slip is infinite (A) y,(t) is a non-causal and y2(t) is a
causal system
139. When a two-winding transformer is
connected as an auto-transformer,
(B) y,(t) is a causal and y2(t) is a
non-causal system
its KVA rating as an auto-transformer
compared to its two winding rating is (C) Both y^(t) and y^Ct) are non-causal
(A) same systems
(B) greater
(0) lower (D) Both y,(t) and yjCt) are causal
systems
(D) zero
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147. A Complementary Metai Oxide
143. The value of f(t)= J 5(t^ -4)dt Is Semiconductor(CMOS)sensor
converts
(A) -4
(A) Electric charge into light
(B) -2 (B) Light into electric charge
(C) infinite (C) Light into magnetic charge
(D) zero (D) Magnetic charge into light
148. To detect presence and absence of both
metal and non-metallic objects, which
144. The convolution of x(t) and 6(t -5) is proximity sensor is used ?
(A) 6(t-5) (A) Capacitive proximity sensor
(B) Inductive proximity sensor
(B) x(t-5)
(C) Ultrasonic proximity sensor
(C) x(t + 5) (D) Photoelectric proximity sensor
(D) 6(t + 5)
149. The Hay Bridge is commonly used to
measure
145. The DFT of the sequence (A) Self inductance
x[n] = {1,0,-1.2} is (B) Mutual inductance
(A) X(K)=(2.-2 + 2i.2,2 + 2j) (C) Coupling inductance
(D) Leakage inductance
(B) X(K)=(2,2 + 2j.-2.2-2j)
(C) X(K)=(2.-2 + 2j.-2.2-2j) 150. What is the maximum error of a
(D) X(K)=(-2,-2-2j.-2.-2-2i) displacement sensor with a range
between 0 and 100 mm with an
accuracy of ± 0.5% full scale ?
146. LVDT is used to measure
(A) 0 mm
(A) Position only
(B) Displacement only (B) 0.5 mm
(C) Position and displacement (0) 50 mm
(D) Pressure (D) 100 mm
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Source: Madhya Pradesh Public Service Commission. Question paper published by Madhya Pradesh Public Service Commission.