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MPPSC AE 2025: State Engineering Service Exam, ELECTRICAL ENGINEERING

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RSAE/2025/E
                                                                                                    Question Booklet SI. No.
               Series                       GENERAL STUDIES
                                                             AND
                                                                                                             3561121
                               ELECTRICAL ENGINEERING


                                                                                         3PRT                      tsU'H ^   1
                                                                               Candidate should write his/her
     Roll No.
                                                                               Roll No.in the given boxes.

®        ^ y^l/No. of Printed Pages:32                                                   31?^   ^OMl/Total No. of Questions ;150
9"^W^/Time: 3^J^/Three Hours                                                                             ""J^rf^/Total Marks:450
9.



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                  '♦^Mldi.   HM<+) "IIRT «iii;*ii 1                          .• .   -T


                                 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 another 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. AH Questions are in Hindi and English Language.                      ®
         All questions are compulsory.                                                    .            •                              0
      4. Section — 'B' contains 100 questions of Concerned Subject. All Questions are only in English Language.                       ©
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           All questions are compulsory.                                                                                              ^
      5. All questions carry equal marks. Three marks for each correct answer. There is provision of Negative                         ©
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 RSAE/2025/E-A
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SECTION-A
                              GENERAL STUDIES

  1. The Southern Boundary of the             4. In which districts are tropical

      Malwa Plateau is defined by which            moist deciduous forests found in

      geomorphological feature ?                   Madhya Pradesh ?

     (A) Vindhyan range                            (A) Murena, Shivpuri, Gwalior

     (B) Satpura range                             (B) Balaghat, Mandala, Shahdol

                                                   (C) Panna,Tikamgarh, Chattarpur
     (C) Aravali range
                                                   (D) Mandsaur, Dhar,.Bhind
     (D) Deccan plateau        ,-


  2. The most significant .                   5. On which river is the Rajghat Dam
      geomorphological feature of                  built ?

      the Bundelkhand region in                    (A) Narmada^
      Madhya Pradesh           ''
                                                   (iS) Betwa
     (A) Residual hills
                                                   (C)-Sindh
     (B) Erosion surfaces
                                                   (D) Cifambal
     (C) Alluvial plains
                                              6. In which of the following districts
     (D) Conical hills . ;
                                                   of Madhya Pradesh does the Baiga

  3. Which-.element is less,in black soil ?    >   tribe reside ?


     (A) Iron and lime                             (A) Jhabua

     (B) Phosphorus arid nitrogen                  (B) Chindwara

     (C)^ Carbon and hydrogen                      (C) Hoshangabad

     (D) Sulfur'and zinc                           (D) Dindori

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7. Which of the following is the               11. Which of the following
     special backward tribes of                      ■ e-governance project was started
     Madhya Pradesh ?                                  by the Government of
                                                       Madhya Pradesh ?
     (A) Saharia
                                                     (A) Lok Mitra
     (B) Gond
                                                     (B) Nai Disha
     (C) Bhil                                        (C) Gyandoot
     (D) Kol                                         (D) Jan Mitra


  8. The Korku tribe is mainly found in          12. Method of data storage consisting
                                                    .of a loop of flexible celluloid like
     (A) Jhabua'
                                                      material that can store data in the
     (B) Betul                                        form of electro-magnetic charges, is
                                                      laiown as
     (C) Shahdol
                                                     (A) Tape Storage (TS)
     (D) Guna
                                                     (B) Floppy Disks(FD)

  9. According to the 2011 Census,                   (0) Optical Disks(CD)
     the percentage of Scheduled Tribe               (D) Hard Disks(HD)
     population in the total population of
    'Madhya Pradesh was -                        13, With respect to CPU,the computer

     (A) 21.09                                       memory hierarchy is organised as
                                                      follows
     (B) 22.01
                                                     (A) Primary Memory -> Secondary
     (G) 21.20      "                                     Memory -> Processor Registers
                                                          -> Cache Memory
     (D) 22.50                     ■'
                                                     (B) Processor Registers        Cache
                                                          Memory -> Primary Memory ->
 10. Saharia tribe mainly resides in
                                                          Secondary Memory''
      which of the follo\rag districts ?
                                                     (C) Cache Memory-->,Processor
     (A) Jhabua                                          Registers -> Primary Memory
     (B) Khargone                                          Secondary Memory
                                                     (D) Primary Memory -> Cache
     (0) Shivpuri
                     I                                   Memory -> Secondary Memory
     (D) Khandwa                                         -> Processor Registers ,
                          ''   *    ^


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14. Which of the foUowuig is not a t^e      17. At which place did Vrishnag, the
       of'Machine Learning'?                     founder of the Naga djmasty,
                                                 established his dynasty ?
       (A) Supervised Learning
                                                 (A) Ujjaini
       (B) Unsupervised Learning                 (B) Gwalior

       (C) Refurbished Learning                  (C) Vidisha
                                                 (D) Jabalpur
       (D) Reinforcement Learning

                                             18. The famous poet and dramatist
 15.   With the advancements in                  Rajashekhar received the patronage
       Artificial Intelligence (AI) a new        of which Kalchuri king ?

       challenging phenomenon has                (A) Yuvraj dev

       emerged which refer to those audio,       (B) Kdkalla ■

       video or images that are generated        (C) Balharsh

       by AI and it never actually existed       (D) Karna

       in the real world. This is known as
                                             19. Which Muslim commander defeated
       (A) Deep fake                              the Parmar ruler Mahalakdev and
                                                  captured Ujjain ?          -
       (B) K — anonymity
                                                 (A) Mir Khwaza
       (C) L — diversity
                                                 (B) Ain-ul-Mulk
       (D) Biases in AI
                                                 (C) Husang Shah
                                                 (D) Khan Mohammad Shah
 16. Which archaeologist discovered the
       human skuU fossil from Hathnora ?     20. Who was the founder of the Faruki
                                                  dynasty of Nimar ? ' '
       (A) Manoranjan Ghosh
                                                 (A) Malik Raja
       (B) ArunSonkia " "" '
                                                 (B) Dilawar Khan
       (C) V.S. Wakankar                         (C) NasirKhan'

       (D) K. D. Vajpai; ■                       (D) Mohammad Shah       ,

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21.   Who has been awarded the Nobel   24. Who is the author of the novel

       Prize in Literature 2025 ?             "Sarag-Narak Yan Che"?

       (A) Annie Ernaux                       (A) Makhanlal Chaturvedi

       (B) Han Kang                           (B) Balkavi Bairagi '

       (C) Laszlo Krasznahorkai               (C) Ram Narayan Upadhyay

       (D) Louise Gluck                       (D) Jagdish Chandra Joshila


 22. Who became the first person to     25. In which district of Madhya Pradesh

       successfully ski down Mount        ." is India's first Pradhan Mantri

       Everest without supplemental           Mega Integrated Textile Region

       oxygen ?                               and Apparel(PM MITRA)Park
                                              being established ?
       (A) Reinhold Messner
                                              (A) Indore
       (B) Andrzej Bargiel
                                              (B) Khargone           Saa!
       (C) Bartek Bargiel
                                              (C) Ujjain
       (D) Donald Tusk
                                              (D) Dhar

 23. In which Indian city has it been

       announced that the 2030          26.   Which is the combined inter-state

       Commonwealth Games will be
                                              project of Madhya Pradesh,
                                              Uttar Pradesh and Bihar ?
       held ?     "

       (A) New Delhi                          (A) Harsi Project


       (B) Mumbai                             (B) Bansagar Project

       (C) Ahmedabad                          (C) Rajghat Project

       (D) Chennai                            (D) Sindh Project

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27.   Where was Chandni thermal power         31. Under which Rule of the Madhya
       station established ?                          Pradesh Panchayat Provisions
       (A) Chhindwara.                               (Extension to Scheduled Areas)
                                                      Rules 2022(PESA Act), the Gram
       (B) Dewas
                                                      Sabha has the right to return
       (C) Amalai                                     the land of Scheduled Tribes
       (D) Nepanagar .                                transfeired by fraud ?
                                                     (A) Rule -19
 28.   In which area is Amarkantak
                                                     (B) Rule -20     ■
       thermal power plant located ?
                                                     (C) Rule-21
       (A) Baidhan
                                                     (D) Rule — 22
       (B) Budhar
                                  M
       (C) Chachai ,                           32. In which year was the State Level
       (D) Father Kheda                               Kol Tribe Development Agency
                                                       whose name has been changed to
 29.   What is the percentage of urban               ' Eol Tribe Development Authority
       population in Madhya Pradesh                   formed ?
       according to the 2011 Census ?                (A)^ Ye^ 2009
       (A) 21 to 23 percentage                       (B),Year 2010
       (B) 24 to 26 percentage                       (C) Year 2011
       (C) 27 to 29 percentage                       (D) Year 2012
       (D) 30 to 32 percentage
                                               33. How many districts of Madhya
 30.   Which of the following districts               Pradesh were benefited under the
       of Madhya Pradesh shares its              ;    PradhanMantri.Jan JatiNyay
       borders with Uttair Pradesh and                Mahaabhiyan (P.M. Janman-2)in
       Chhattisgarh both ?                            the year 2024-25 ?
       (A) Anuppur                                   (A) 20
       (B) Singrauli                                 (B) 24
       (C) Rewa                                      (C) 28       ' r
                          i

       (D) Shahdol                                   (D) 30

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34. Which Section of the Scheduled               37. Which department was constituted
                                                      in the year 2001 for the purpose
       Castes and Scheduled Tribes
                                                      of better utihsation of biological
       (Prevention of Atrocities) Act                 (organic) resources in Madhya
                                                        Pradesh ?
       1989 provides for punishment
                                                        (A) Madhya Pradesh State
       for dereliction of duty by a public
                                                            Biodiversity Board
       servant who is not a member of
                                                        (B) Madhya Pradesh Council of
       a Scheduled Caste or Scheduled                       Biotechnology
       Tribe ?                                          (C) Madhya Pradesh Biodiversity
                                                            Department   , ;
       (A) Section — 2                                  (D) Madhya Pradesh Biodiversity
       (B) Section-3                                        Ministry

       (C) Section — 4                            38.   On what basis was the division of
                                                        forests done in Madhya Pradesh ?
       (D) Section -5                                   (A) Based on the tropics
                                                        (B) Based on vegetation and
 35.   What is the total number of                          geographical region
       Chairperson, Vice Chairperson and                (C) Based on the forest division

       Members prescribed in the Tribal                 (D) On the basis offorest villages

       Advisory Council ?                         39. In the marketing year of 2024-25
                                                      which crop is included in price
       (A) 10                                         support scheme first time at
                                                      minimum support price of earning
       (B) 15                                       , -value ? '       '

       (C) 20                                           (A): Chickpea (Grain) '
                                                        (B) Soyabean
       (D) 25
                                                        (C) Lentil
                                                        (D) Mustard
 36. Madhya Pradesh Forest
     Development Corporation                      40. What was the Gross State
       was established in.                              Domestic Product(GSDP)of
                                                        Madhya Pradesh at current prices
       (A)"24 July 1975                                 for the financial year 2024-25 ?
                                                        (A) Rs. 13,53,809 crore
       (B) 15 August 1984
                                                        (B) Rs. 14,00,000 crore
       (C) 27 August 2008                               (C) Rs. 15,03,395 crore
       (D)" 10 July'1975                                (D) Rs. 16,00,000 crore

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41. Under whose editorship was               46. The temxre of Up-Loka3aikt in
     *T)ainik Lokmat" started from                Madhya Pradesh is
     Jabalpur in February.1930 ?.                   (A) 3 years
     (A) Madhav Agarkar                             (B) 4 years
     (B) Seth Govind Das                            (G) 5 years
                                                          I

     (G) D.P.Mishra                                 (D) 6 years '
     (D) Girija Shankar
                                               47. Who among the following was the
                                              .    longest serving Chief Secretary of
 42. Under what name was Arya Samaj                 Madhya Pradesh ?
     established in Bhopal in 1890 ?
                                                    (A) H.S.Kamath        ,
     (A) Jan Sabha
                                                    (B) R.P. Naronha
   ■ (B) Lok Sabha
                                                    (G) B.KDubey
     (C) Jagriti Sabha
                                                    (D) K. S. Sharma
     (D) Mitra Sabha
                                              48.   Which was the first State in India
 43. Who is the author of'Tapers                    to implement Panchayati Raj as per
     Relating to the Aboriginal Tribes              73   Constitutional Amendment Act?
      of the Central Provinces" ?                   (A) Gujarat
     (A) Russel                                     (B) Maharashtra
                                                    (C) Uttar Pradesh
     (B) Stephen Hislop
                                                    Q3) Madhya Pradesh
   '(C) Hiralal
                                              49. Which of the following is not a part
     (D) R. B. Foote
                                                    of the committee to select State
                                                    Information Commissions ?
 44. Which tribe of Madhya Pradesh                  (A) Chief Minister
     mainly worship Meghhath as their               (B) • Leader of Opposition Legislative
     deity ? .                                            Assembly
     (A) Korku                                      (C) Cabinet Member nominated
                                                       ■by CM
     (B) Gond ,
                                                    (D) Chief Justice of High Court
     (0) Baiga
     (D) Oraon       .                         50. According to ^Madhya Pradesh
                                                    Govansh Vadh Pratishedh
                                                     Adhiniyam 2004', which of the
 45. When was Bhopal State Praja
                                               " ' • following is/are included under
      Mandal established ?
                                                , ■ definition of "Cow progeny" ?
     (A) 1942 '                                      (A) Cows only
     (B) 1944                 ';                     (B) Cows and Calves
                                                     (C) - Cows, Bulls, Bullocks and
     (G) 1946                                            Calves
     (D) 1938                                       (D) Cows, Bulls and Calves
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SECTION-B
                             ELECTRICAL ENGINEERING
 51. The Wheatstone Bridge is used to                  53.   The deviation of the true value
      measure                     resistance                 from the desired value is known as
                                                             (A)   Expected value
      whereas the Kelvin's Bridge is used
                                                             (B)   Accuracy
       to measure                resist^ce.                  (C)   Error
    . (A) Low, High ,            .3 .                        (D)   Precision
     (B) High, Low'                ' ■
                                                       54. The expected value of the voltage
     (C) Medium,Low                      -                   across a resistor is 75V. However,
                                                             the measurement gives a value of
     (D) Low,'Medium                                         74V. The value of absolute error and
                                                              % error are           and
                                                             respectively.'
 52. Match the following.
                                                             (A) IV, 1.0133 '
         Bridges               Advantages                    (B) O.IV, 1.033
      i. Hay's •          a. A fixed capacitor               (C) IV, 1.33
                                                             (D) I.OIV, 1.33
         Bridge                • can be used
                               instead of a            55. The type of digital voltmeter
                        ■'     variable                    (DVM) that has better noise
             I      •
                                                           rejection capabilities and gives
                        * ' capacitor,                     better measurement accuracy
     ii. Anderson's - b. The bridge can                    (inaccuracy as low as ±0.005%)
                                                           (A) Potentiometric digital
         Bridge                be used over a                      voltmeter
                              ,,wide range of                (B) Voltage-to-time conversion
                              'measurement
                                                                • digital voltmeter
                                                             (C) Dual-slope integration digital
                              . of inductances,                    voltmeter
     iii. Owen's             c: Simple                   - (D) Voltage-to-frequency conversion
                                                               digit£d voltmeter
         Bridge                expression for
                              «unknown ■. >-           56. If the ratio of the primary
                                                             to secondary voltage of an
                               inductance                    autotransformer is 100 : 50, then
                             , for high Q coils           ' what wiU be the saving in copper
                                                            by using an autotransformer
                              • and Q factor,
                                                             as compared to a two-winding
     (A) i-c.       u— a         ui— b                       transformer of the same rating ?
     ,(B)i. i-ri)                iii —c
                                                            (A) 25%                                 /
                    ii-a
                                                            (B) 50%
     (C) i-c        ii-b=        m— a
                                                            (C) 60%                   , .
     (D) i-a        ii —c        iii — b                    (D) 75%

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57.    When a transformeris switchedonto           61.   If x(t) X(f)represents a Fourier
        supply, an initial transient current              transform pair, then according to
        (very short duration current) of                  the duahty property of Fourier
                                                          transform
        high magnitude may flow through
        the primary winding. This transient               (A) X(t)^ x(-f)
        inrush current may be as high as                  (B) X(t)^ x*(-f)
       (A) 2 to 5 times the rated current                 (0) X(t)o x(f)
       (B) 5 to 10 times the rated current                (D) X(t)o x*(f)
       (C) 10 to 20 times the rated current
                                                    62.   The z transform of x[n] = nu[n],
       (D) None of the above                              where u[n] is a step function
 58. In the testing of single-phase                       (A)
                                                                 (z-1)
     induction motor, under blocked
                                                                   z
     rotor condition, motor speed is zero,                (B)
     so the slip will be                                         (z-lf
                                                                  _2
       (A) less than 1                                    (C)
       (B) equal to 1                                            (z-1)
                                                                   Z
       (C) greater than 1                                 (D)'
       (D) zero

 59. In 3-phase induction motor, the
                                                    63.   The Samphng frequency of the
     rotor speed is always slightly less
     than s3mchrpnous speed so as to                      signal x(t)= sinC^(200t) is
       , produce a              in the rotor              (A) 100 Hz
       'bars sufficiently large enough to                 (B) 200 Hz
        overcome the braking torque.                      (C) 400 Hz
       (A) Voltage                                        (D) 800 Hz
       (B) Current
       (C) Torque                                   64.   Which ofthe following property of the
                                                          Laplace transform is not correct?
       (D) Force
                                                          (A), e'«'x(t)<-^X(s+ a)
 60. Dummy coils are used so as
     (A) to make the armature                             (B) x,(t)*x,(t)<^^X,(s)X,(8)
         d5mamically balanced
       (B) to contribute to the induced emf               (C), Xi(t)x,(t)<-55L^^[Xi(s).X,(s)]
                                                                             - 1


       (C) to contribute to the developed
            torque                                        (D) x(at)<      > aX
       (D) to reduce the current
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65. What is the final value x(«.) if X(s)             69. A single phase dual converter is
                         s-2                               feeding a separately excited dc
      is given by X(s)=-                                   motor in four quadrant operation
                       8(s+4)
                                                            1. For working in first and fourth
     (A,-l                                                      quadrants, converter -1 is
                                                               operation.
     (B) i                                                  2. For operation in second and
           2                                                    third quadrants, converter —11
                                                                is energised.
     (C) 0
                                                            3. Converter -11 with firing
     (D) 4                                                       angle greater than 90°
                                                                 operates the motor in reverse
 66. A dc chopper,in which load current                          motoring mode in third
     remains positive but output voltage                         quadrant.
      may be positive or negative is known                 (A) Only 1 and 3
      as(assume current on X — axis)                       (B) ■ Only 2 and 3
     (A) Type - C chopper                                  (C) Only 1 and 2
     (B) iS^e-A chopper                                    (D) AU of the above
     (C) Type-B chopper
     (D) Type-D chopper                                70. For stator voltage control of
                                                            induction motor drive which of
                                                            the following statements are not
 67. A single-phase fiiUy controlled
                                                            correct ?
      converter operates as an inverter
                                                             1. AC voltage controllers are very
      when firing angle 'a' varies from                         simple.
     (A) 0°<a<90°                                            2. AC voltage controllers generates
     (B) 90?<a<180°                                             low harmonic content.
     (C) 90° <a< 180° and there is a                         3. AC voltage controllers will have
           suitable dc source in the load                       high input power factor.
           circuit            , ,                            4. Stator voltage can be varied by
                                                                three phase voltage fed variable
     (D) 0°^a<60°                                               DC link inverters.
                                                           (A) 1 and 2
 68. In a dual converter^ the flow of                      (B) 2 and 3
     circulating current                                   (C) 3 and 4
   . (A) Allowsthe continuous conduction                   (D) 1 and 4
        . with slpVirer response time
                                                       71. Simplify the boolean expression
     (B) Allowsthe continuous conduction
          'with faster response'time                        f = ABCD + ABCD +
     (C) Does not allow the continuous
                                                                AB-C-D+.A-B-C-D-
        "conduction'with sluggish
         response time                                     (A) B-C
     (D) Allows to operate converter -1                    (B) B^C
           as^a rectifier and converter —11
           as an inverter but reverse power        ■     ■ (C) B-C
           flow is not possible                            (D) B-C

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72. The circuit given below is whicli          74. What is the average value of output
       counter ?                                      ^voltage Vlfor the full wave rectifier
                                                       power supply shown in figure if
                                                      Vg = Vm sin cot ?

  Clock o-   C FFO           0 FFl
                                                                   n:l               pi
                                                                         F~
                                                                         :V2      Rl
                                                                                  -AV\A—
      (A) Mod-2 counter
                                                                         .+   •    Vl+
                                                                         -V2
      (B) Mod-7 counter                                                             D2
                                                                   n=1
                                                                                  —1^
      (C) Mod-4 counter
      (D) Mod-3 counter                               (A)
                                                             nn



                                                      (B)
                                                            Za
                                                            nn
 73. For the Emitter-bias configuration
       shown in figure has the following              (C) Zm
                                                            2nTC
       specifications:
                                                      (D) Za
                                                            2n
                         = 8mA,Vc = 18V

                                                75.    For a common drain amplifier as
       and S = 110. The value of Kq is
                                                      shown in figure/Ro = 500 Idl,
                                                      Rg = 5 kQ,|i = 60 and r^ = 30 kti,
                                                      the value of voltage gain Ay is
                           Vc = 18 V


                          B = 110



                                                Vi                 Rg

                                                                                             o—


      (A) 3.5 kn                                      (A) 0.795
      (B) ika                                         (B) 0.995
      (C) 2kn                                         (C) 0.695
      (D) 2.5^                                        (D) 6.895

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76. A 3-phase transformer rated                   80. The main criterion for designing
      for 33KV/6.6KV is connected in                    the cross section of conductor used
      star/delta is to be protected by a
   ,. differential protection. The current              for a distributor is
      transformer on the low voltage                   (A) Voltage drop
      side has a ratio of 400/5. Then the
     .suitable C.T. ratio on the HV side is            (B) Corona
                                                              o loss
                                                                 o
     (A) 80:5                                      ' ■ (0) 00
                                                          Temperature rise
    (B) 80;5r/3                ■■ .                    (D) Radio interference
 .. (C) 80:5/-v/3 !
     (D) 160;5/n/3                                 81. The Routh array given below
 77. A generator is connected to a
    - sjmchronous motor.-From stability                      1        ' K+200
      point of view it is preferable to have                 3          4K      ■
     (A) Generator neutral reactance
                                                              600-K
          grounded and motor neutral
          resistance grounded                                     3
     (B) Generator and motor neutrals                        4K
          resistance grounded
     (C) Generator and motor neutrals               . •. For marginally
                                                                 o        stable, the value of
                                                                  o
          reactance grounded                             oscillation frequency is
     (D) Generator neutral resistance
           and motor neutral reactance                 (A) V500
           grounded
                                                       (B) V200
 78. Load frequency control is,achieved
     by properly matching the                          (C)
      individual machine's
    (A) Reactive'powers                                (b)
   '(B) Generated voltages '
    (C) Turbine inputs                             82. Consider the system with open-loop
   '(D) Turbine and generator ratings                   transfer function

                                                                               K
 79. In order'to have lower cost of
      electrical power generation
     (A) The load factor and diversity                  for K = Small and K = Large, the
    . • factor should be low                            system is respectively
     (B) The load factor should be low but
           diversity factor should be high             (A) stable, stable
     (C) The load factor should be high but            (B) imstable, stable
           diversity factor should be low
                                                       (C) stable, unstable
     (D) The load factor and diversity
           factor should.be high                       (D) unstable, unstable

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83.   Which of the following term is                 86.    A stepper motor has a step angle of
       responsible for noise measiirement                    1.8®! How many steps are required
       in PID controller ?                                  for one complete revolution ?
       (A) The integral term                                (A) 100
       (B) Both proportional — integral                     (B) 200'

       (C) The proportional term                            (C) 360
                                                            (D) 180
       (D) The derivative term

 84.   Write the expression for transfer
       function in frequency domain of                87. Which inotor is used commonly in
                                                            vacuum cleaner ?'
       the following Figure. The bode
       magnitude plot of a system                           (A)• Stepper motor
                                                            (B) Single-phase induction motor
         t        — 20 dB/decade
       dB                                                   (C) Three-phase induction motor
                 •"4;^ ^0 dB/decade                         (D) Universal
            16

                                      ->log 0)
             0      0.5         5^                    88. A mercury vapour lamp at low
                 3(1+ 30))                                 mercxiry vapour pressure gives
       (A)                                                (A) White light
             (joo)(l+]0.2o))
                                                          (B) Pink light
                  (l+jSo)
       (B)                                                (G) Yellow light
             (jo))(I+ 3O.2C0)
                                                         (D) Blue light
                3(l+j2o))
       (C)
             (ja>)(l+j0.2o))                          89. In flat rate tariff, bill depends only
                                                            on
                 2(l+ j3a))
       (D)                                                  (A)' Power factor
             (jo))(l+j0.2(o)
                                                            (B) Maximum energy demand
 85.   To increase the damping factor of                    (0) Actual energy consumed
       the dominant poles of a conventional                 (D) Active power
       control systems, name the controller
       which provides advantage of
       combing it with derivative error               90. The maximum value of'demand
                                                            factor' is
       scheme.
       (A) PI                                               (A) 2
       (B) PID                                              (B) 1
       (Q P                                                 (C) 0
       (D) None of the above                                (D) -2

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91.   The ability of a material to store            95.    Magnetomotive force(mmf)in a
       electrical energy in an electric field               magnetic circuit is analogous to an
       depends upon                                         electric circuit. Suggest from the
                                                            following.
       (A) Relative conductivity
                                                           (A) Current(I)
       (B) Relative permeability .                         (B) Resistance(R)
       (C) Relative permittivity                           (C) Voltage(V)
       (D) Relative resistivity                            (D) Field Intensity(E)

                                                     96.   One conductor ofa Three Phase line is
 92.   Biot-Savart's Law is used to                        open asshownin the circuitbelow.The
       determine the
                                                           current flowing to the A-connected
                                                           load through line 'a' is lOA. With the
       (A) Electric field due to a point                   current in line 'a' as reference and
           charge                                          assuming that line 'c' is open, then
                                                           the symmetrical components of the
       (B) Magnetic field due to a current                 line current for line 'a' are
           carrying conductor                                  L =10[0!Amp
                                                           a
       (C) Force between two static
           charges
       (D) Force on a moving charge in an
                                                               1^^=101180^
            electrical field                                                        AAWV-^

                                                            Co-
 93.   The Lorentz force on a moving                                           —> Ic — 0
       charged particle is due to presence                 (A) I^^=0.I,^=5.78[^A,
       of following                                               L =5.78|-30''A
       (A) Gravitation fields
                                                           (B) I       =I =I       =0
       (B) Irrotation fields                                                   2


       (0) Both Electric and Magnetic                      (C) Tag =0,L =5.78|-30°A,
                                                                             I
            fields                                                     =5.78|30°A
                                                                   2
       (D) None of the above
                                                           (D)         =5.78[30:,I^ =5.781-30°,
 94.   Reluctance in a magnetic circuit                           l/=0
       is analogous to electric circuit.
       Suggest from the following.                   97.   The pin tjrpe insulators are
                                                           normally used upto a voltage of
       (A) Current(I)
                                                           (A) 33 KV
       (B) Resistance(R)
                                                           (B) 132 KV
       (C) Voltage(V)
                                                           (C) 220 KV
       (D) Conductance(G)
                                                           (D) 400 KV

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98.    A 250 MW,50 Hz synchronous                  102. Two lamp posts are 14 m apart and
        machine has kn operating load of                  are fitted with lamps of 200 candle
        125 MW.Load varies by 1% for                      power each at a height of 5 m
        1% change in frequency. The load                  above the ground. The illumination
        frequency constant parameter in                  ,on the ground midway between the
        p.u. MW/Hz is                                     lamps will be
       (A) 0.1                                         - (A) 8.3 lux
       (B) 0.01                                          (B) 3.14 lux
       (C) 0.001                                         (C) 11.44 lux
       (D) 0.0001                                        (D) 5.24 lux

 99.   In a three unit insulator string,
       voltage across the lowest unit is            103. Which of the following is not true
       17.5 KV and string efficiency is                  about the effects of poor power
       84.28%. The total voltage across                   factor ?
       the string will be equal to                       (A) For the same load dehvery, the
       (A) 8.825 KV                     0                    required size of the generator
       (B) 44.25 KV                                           and transformer increases
       (C) 88.25 KV                                      (B) Cross sectional area of busbar
       (D) 442.5 KV                                          needs to be enlarged for same
                                                             power delivery
100.    Compared to Gauss-Seidel load r                  (C) Copper losses in the supply
       flow method, Newton Raphson                            network decreases
        method takes                     ^               (D) The overall cost of power
       (A) Less number of iterations and                     delivery increases
            more time per iteration
       (B) Less number of iterations and            104. Incandescent lamps usually have
           less time per iteration
                                                         power factor in the range of
       (C) More number of iterations and
            more time per iteration                      (A) 0.98 to 1
       (D) More number of iterations and                 (B) 0.6 to 0.8
           less time per iteration                       (C) 0.4 to 0.5.
                                                         (D) 0.55 tx) 0.75 .
101.   For lines of voltages exceeding 650 V
       and upto 11 kV,the horizontal
       clearance between the nearest                105. The radiant energy emitted by
       conductor and any part of building                 materials follows
       shall not be less than                            (A) Hooke's Law
       (A) 3.7 meter                                     (B) Ohm's Law
       (B) 2.0 meter
                                                         (C) Wien's Displacement Law
       (C) 1.2 meter
       (D) 0.5 meter                                     (D) Stefan-Boltzmann's Law

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106.   The diagram given below >                     110.   The testing method of an energy
        represents the basic principle of                    meter that avoids the actual
                                                             loading arrangements when the
                                      Illllll
                                                             current rating of a meter is high is
        JTL                                                  called
              K-                      Isec.                  (A) Creep test
        Isec.
                                                             (B) Starting test
        (A)   Digital phase measurement                      (C) Phantom loading
        (B)   Digital time measurement
                                                             (D) Induction test
        (C)   Digital frequency measurement
        (D)   Digital power measurement
                                                      111,   The reverse recovery time and peak
 107.   Which t5rpe of transformer is                        inverse current in a diode depends
        represented by the circuit diagram                   upon
        given below ?
                             n .  ^                          (A) Forward diode current
                    Secondary Winding                        (B) Stored charge
                                                             (C) Temperature
          Primary 8                                          (D) Peak inverse voltage
          WindingI
■Supply Vp                              [jLoad
                                                      112.   In Gate Turn-ofr Thjnristor (GTO),
                                                             during turn-off process, the anode
        (A) Current transformer                              current begins to fall when the gate
                                                             current
        (B) Potential tiransforiner
        (C) Power transformer                                (A) just begins to become negative
                                                                  at time t = 0
        (D) Erier^ transformer
                                                             (B) is negative peak at time t = 0
 108.   The Schering bridge is used tp: ^ •                  (C) is negative at time t=ts (Storage
        measure ;     ^      ,                                    period)
        (A) Inductance and Q factor                          (D) is negative peak at time t = ts + tp
        (B) Capacitance and frequency                            (Fall period)
        (C) Capacitance at resonant
            frequency
        (D) Capacitance aiid dielectric loss          113.   In V-I characteristics of an Uni
                                                             Junction Transistor (UJT),
 109.   An instrument used for measuring                     negative resistance region exhibits
        the power in any of the "^ven                        (A) After valley point
        electrical network'is
        (A) Meggar                                           (B) Between peak point and valley
                                                                 point
        (B) Gyrometer - ' '
        (C) Wattmeter -                                      (C) Before the peak point
        (D) Energymeter ,                                    (D) None of the above

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}

114. A pulse transformer is used in a            116.    The electric flux density(D)
      triggering circuit                                 is related to the electric field
     (A) To prevent a false triggering                   intensity(E) as'
     (B) To provide isolation of low
          voltage gate circuit from high,                (A) D =^
          voltage anode-cathode circuit                            ^0
     (C) Low frequency carrier gating
     (D) To trigger only one device                      (B) D =^
115. Match the List -1 with List-n
                                                         (C) DieoE
       and give the correct answer by                                r
       using the codes given below.                      (D) D =
                                                                   SqE
  List-I                      List-11
                        •V.
                                                 117.'    Which of the following is not
a.Voltage       1. Vg                                    correct according to Coulomb's law
 commutated
                                                         regarding the force between two
  chopper          _
                   0
                                                          point charges ?
                                                         (A) It acts along the line joining the
b. Load         2.Vot                                         two charges
 commutated
  chopper                                                (B) It acts perpendicular to the line
                                                              joining the two charges
                   0                                     (C) It is directly proportional to the
c. Current     '3. Vo f                                       product of the two charges
 commutated                                              (D) , It is inversely proportional to the
 chopper           Vs                                         square of the distance between
                                                              the charges
                    0

d. Conventional 4. V.
  chopper                                        118.     Gauss's law states that the total
                                                          electric flux through any closed
                   V.
                                                         surface is equal to the

                   Oh-T-^                                (A) Voltage enclosed by the surface
          Codes:
                                                         (B) -Current.enclosedby the
      (A) a-2,b-,4,.c-Ld-3
                                                              surface .
      (B) a-2, b — 4, c- 3, d- 1
      (C) a-4,b-2,c-1,d-3j                               (C) Energy enclosed by the surface
      (D) a —2,b- 1, c-4,d-3                             (D) Charge enclosed by the surface
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119. .The unit.of potential difference is                  123.    Find the correct statement for a unit
       (A) Volts . ..                                              impulse function in continuous time.
       (B) Joules/Coulomb ^                                        (A) It has a finite duration
      .:(C);.:Watts                                .        IB     (B) It has defined only at discrete
       (D) Both(A)and(B)                               0S               time instant

                                                                   (C) It has infinite ^ea
                                              T
                                         -   v..   1

 120. The capacitance is only function                             (D) It has zero width and infinite
      offollowing, when Electric flux                                  height
      density and electric field intensities
                                     *       , 1
        are increases . ..                                  124.    The conditions under which a

       (A) Magnetic flux density                                 'periodic signal can be represented
       (B) Permeability of the mediimi                            by a Fourier series are known as
       .(C) Physical dimension ofthe system                      - (A) Parseval conditions
              .of.conductors. .                                    (B) Nyquist conditions
       (D) None of the above . , .                                 (C) Laplace conditions
                               J .
          V        *       »                                       (D) Dirichlet conditions
 121. Which of the following is the
        example of a discrete-time signal ?                 125.    Parseval's relation for continuous
               : . i»• I

       (A) Voltage across a capacitor                               time periodic signals is
       (B) Sound waves in air
       (C) Temperatinre recorded at an                             lA)" LfxCtf
                                                                        JL T
                                                                               dt=k=-cD
                                                                                   z |ak|
               interval of one hour
      '(D) Current flowing through a                               (B) -;|x(t)fdt=
                                                                        T  '
                                                                                    f la^l
                                                                                   k=-oo
               resistor •'


 122. If x(t)is a continuous time signal,
                                                                   (C) L|x(t)fdt= z |at|
                                                                         XT            k=-<»

      then x(2t — 5)represents ,.
       (A) .Time scaling by 5,and time                             (D) J|x(t)fdt= Z |atl
                                                                         T .        k=-oo
               shifting by 2
                                                            126. • A transformer can have voltage
       (B) Time scaling by 2 and time                                          r



           shifting by 5                                            regulation close to zero
       (C) Time scaling by 5 arid time                             (A) on full load
           shifting by %.                                          (B) on over load
''•   : (D) Time scaling by Vi and time                            (C) 'on leading power factor
            shifting by 5                                          (D) on zero power factor

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127.    What is the another essential             130.    The Potier method is used to
        condition for three-phase                         determine the armature reaction
        transformers to be connected                      ampere-tioms and leakage reactance
        in parallel, in addition to the                  of a
        conditions of parallel operation of              (A) Induction machine
        single-phase transformers ?
                                                         (B) S5mchronous machine
       (A) Phase sequence should be same
             only                                        (C) DC machine
       (B) Vector grouping should be same                (D) Transformer
             only
       (C) Phase sequence and vector              131.   A delta-connected network with its
             grouping should be same                     Wye equivalent is shown in figure.
       (D) Neither phase sequence nor                    The resistances Ri, R2,R3(in ohms)
             vector grouping should be same              are respectively

128.    The advantages of three-phase
        transformers over the banks of
        three single-phase transformers                                  30 Q
        are that they
       (A) Occupy less space and cost
            more
                                                                 15 £2
       (B) Occupy more space and cost
            less                                         (A) 1,5, 3 and 9
       (C) Occupy less space and cost less               (B) 3, 9 and 1.5
       (D) Occupy more space and cost                    (C) 9, 3 and 1.5
            more                                         (D) -3, 1.5 and 9
                                                                               *

129. Match the following.                         132.   In the circuit offi^re the current
          Methods/           Machines                    in 1 £2 resistor is
          Tests                                                           2£2
        i. Commutation    a. Transformer
       ii. V-curves       b. Induction
                                                                               2£2
                             motor
       iii. Circle diagram c. Synchronous
                                                                  1£2
                                                                                         ©\2A
                             machine
       iv. Sumpner^s test d. DC motor
                                                         (A) 4A
       (A) i- a, ii- b, iii-c, iv - d
                                                         (B) 5A
       (B) i- b, ii- c,. iii — d, iv - a
       (C) i — d,' ii- c, iii — b, iv — a                (C) 2A
       (D) i-c, ii-b, iii-a, iv -d                       (D) lA

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133. Find the steady state voltage                135. A star connected alternator

      across the capacitor as well as Rl                supplies a delta connected load.
     (in figure). If the current source is              The impedance of the load branch
      removed at t = 0.                                 is (8 +j6) ohm/phase. The line
                          5a                            voltage is 230 V. What is the
                                                        current in the load branch ?

      5A(t) ^Xc=                                       (A) 10 A

                                  RL=5a                (B) 39.8 A
                                                       (C) 32 A
                                                       (D) 23 A
     (A) Steady state voltage across Xc
          is 1 volt
                                                  136. The force equation for the system
                                                       shown in figure is given by
     (B) Steady state voltage across Xc
          is 0 volt

                                                                  □D
     (C) Steady state voltage across Xc
                                                        K
          is —1 volt


     (D) None of the above
                                                            M
                                                                        ]I


134. In a series R-L-C circuit R = 2 ka,
                                                       (A) f =M^ +D—+Kx
      L = 1H, C = —^ uF. The resonance                            dt^     dt
                      400
      frequency is
                                                                d X    Hy
                                                        (B) f +M^   = D—+ Kx
      (A) 2x10^ Hz                                                dt^     dt


      (B) -xlO*^Hz                                              d^x            dx
                                                        (C) f +M^   + Kx = D
           71                                                     dt^          dt


      (C) 10^ Hz
                                                       (D) f =M^ +Dfxdt +Kx
      (D) 271: X 10^ Hz                                           dt^    •'

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137, Moving the summing point after                138. The signal flow graph shown in the



      R(S)




      What will be the correct equivalent ?               (A) Three forward paths and three
                                                              loops
                                                          (B) Two forward paths and two
                                     C(S)                     non-touching loops
     (A) R(S)                                             (C) Two forward paths and three
                                                              loops
                                                          (D) Three forward paths and two
                                                              non-touching loops


                                                   139.   The natural frequency of
                                     C(S)                 oscillations due to dominant roots
     (B) R(S)
                                                          of the system transfer function

                                                           C(S) J    .3
                                                           R(S) (S+5)(S^d-2S+3)
                                                          (A) 1.73 rad/sec
                                                          (B)'2 rad/sec
                                     C(S)
     (C) R(S)                                             (C) .1:.41 rad/sec
                                                          (D) 3 rad/sec


                                                   140.   The stability of a system
                                                          (A) Increases as the t3q)e of system
                                                               increases
                                     C(S)                 (B) Decreases as the tjrpe of
     (D) R(S)
                                                              system increases
                                                          (C) Does not change as type of
                                                              system increases
                                                          (D) None of the above

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141.   For the small signal equivalent            144. Assuming that the accumulator
       circuit of amplifier shown in                   contains l4 H and carry bit is
                                                       set(CY = 1). The instruction ACI
       figure with Rg = 3 kQ,                          42 H is executed. The content of
       Rd = Rl= 2 Hi,ri = 5 Hi and                     accumulator will be
       Kg = 100 Hifor identical JFETs                  (A) 57H
       with ras = 25 Hi and gm = 0.0025S.              (B) 42 H
        The value of voltage gain is                   (C) 24 H
                                                  ■" ■ (D) 75H
         Ti
 li
                G                                 145. Which of the following interrupts
                                                         has the highest priority ?
                                                      - (A) TFO
                                                        (B) lEO
                                                        (C) TFl
       (A) 6.51.. '          .   ^
                                                        (D) lEl
       (B) -'6.51 '          '
                                                  146. For the two port network, the
       (C) -4.58
                                                        impedance parameter matrix
       (D) 4.58       . .

                                                       [Z]= ^11 ^12
142. An amplifier has a mid frequency-                         Z21 Z22J
     gain-Aq = 100. For a feedback ratio
     p = 0.1, find the overall gain at mid
         frequency.      ,
        (A) 90.9
      ^ .(B) 9.09
       (C) 9.90        ^ 01                                   60 n     100 a
       (D) 99                                          (A)-
                                                              40 n     60 n


143. The input common mode range is the                       40 a 100 n"
                                                       (B)
     range of input common voltage over                       60 o.    40 n
        which the input stage remains in
                                                              '6OQ. 4oa"
       (A) Linear active mode                          (C)
                                                              40 n"100 n
       (B) Linear cut-off mode
       (C) Non-linear active mode                             " 40 n   100 a
                        rr
                                                       (D)
       (D) Non-linear cut-off mode                            100 n     GOD.


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147. Which one of the following gives                 149. The voltage across an impedanceZis
         the correct short circuit parameter
                                                            100Z15° V and current through Z is
         matrix Y for the network shown ?
                                                           20Z—45° A. The active and reactive
                      0.50
                                                            powers in Z respectively are

               0.2 O              0.3 O
                                                           (A) 1000 Wand 1732 VAR
  I'o-
                                                           (B) 500 W and 1732 VAR
               0.7    -0.5
     (A)
              -0.5     0.8                                 (C) 1000 W and 6000 VAR

              " 0.7   0.5"                                 (D) 500 W and 6000 VAR
     (B)
              -0.5 0.8


             '0.8     -0.5"                           150. A balanced delta-connected load
     (C)
              -0.5     0.7
                                                            of(8 + j6)f2 per phase is connected
              0.7 -0.5"
     (D)                                                    to a 400 V, 50 Hz, 3 phase supply
              0.5     0.8

                                                            hnes. If the input power factor is to

148. A 240 V,           ac source is connected              be improved to 0.9 by connecting a
         to a load with an impedance of
                                                            bank of star connected capacitors,
         10Z60° n. A capacitor is connected
         in parallel with the load. If the                 the required KVAR of the bank is
         capacitor supplies 1250 VAR, the
         real power supphed by the source is               (A) 42.7

     (A) 3600 W                                            (B) 10.2
     (B) 2880W
                                                           (C) 28.8
     (C) 2400W
     (D) 1200W                                             (D) 38.4




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Source: Madhya Pradesh Public Service Commission. Question paper published by Madhya Pradesh Public Service Commission.