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APSC JE 2024: Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering

  • Date: 14 July 2024
  • Paper code: Advt. 29/2023
  • Language: English
  • 16 pages
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 1 of 16
Page 1 of 16
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JEIPHE leElttl24
     DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO
Test Booklet No.                                                                                       Series

                                     TEST BOOKLET
           01325
                                                 Paper-II
                             ( Er,ucrRrcAL EucrrppRrNc )
TlneNlowed:2Hours                                                                               Full Marks : lOO
Read the followlng lnstructlons care;fullg before gou begln to ansuter tle questlons :
 1. The name of the Subject, Roll Number as mentioned in the Admission Certificate, Test Booklet No. and Series
    are to be written legibly and correctly in the space provided on the Answer-Sheet with Black/Blue ballpoint pen.
 2, Anewer-Sheet wlthout marklng Series as mentioned above ln the space provlded for ln the Answer-Sheet
    shall lot be evaluated.
 3. All questions carry equal marks.
    The Answer-Sheet should be submltted to the Invlgllator.
    Drections for giuing the answers: Directions for answering questions have already been issued to the respective
    candidates in the 'Instructions for marking in the OMR Answer-Sheet'along with the Admit Card and Specimen
    Copy of the OMR Answer-Sheet.
   Example :
   Suppose the following question is asked :
      The capital of Bangladesh is
      (A) Chennai
      (B) London
      (C) Dhaka
        (D) Dhubri
   You will have four alternatives in the Answer-Sheet for your response corresponding to each question of the
   Test Booklet as below :
                                                 @@e@
   In the above illustration, if your chosen response is alternative (C), i.e., Dhaka, then the same should be
   marked on the Answer-Sheet by blackening the relevant circle with a Black/Blue ballpoint pen only as below :
                                                 @@c@
    The example shown above ls the only correct method of answerlng.
 4. Use of eraser, blade, chemical whitener fluid to rectify any response is prohibited.
 S. Please ensure that the Test Booklet has the required number of pages (16) and 100 questions immediately after
    opening the Booldet. In case of any discrepancy, please report the same to the Invigilator.
 6. No candidate shall be admitted to the Examination Hall/Room 20 minutes after the commencement of the
   examination.
 7. No candidate shall leave the Examination Hall/Room without prior permission of the Supervisor/ Invigilator. No
    candidate shall be permitted to hand over his/her Answer-Sheet and leave tJle Examination Hall/Room before
    expiry of the full time allotted for each paper.
 8. No Mobile Phone, Electronic Communication Device, etc., are allowed to be carried inside the Examination
    Hall/Room by the candidates. Any Mobile Phone, Electronic Communication Device, etc., found in possession
    of the candidate inside the Examination Hall/Room, even if on off mode, shall be liable for confiscation.
 9. No candidate shall have in his/her possession inside the Examination Hall/Room any book, notebook or loose
    paper, except his/her Admission Certificate and other connected papers permitted by the Commission.
1O. Complete silence must be observed in the Exarnination Hall/Roorn, No candidate shall copy from the paper of
    any otJrer candidate, or permit his/her own paper to be copied, or give, or attempt to give, or obtain, or attempt
    to obtain irregular assistance of any kind.
11. This Test Booklet can be carried with you after answering the questions in the prescribed Answer-Sheet.
12. Noncompliance with any of the above instructions will render a candidate liable to penalty as may be
   deemed fit.
13. No rough work is to be done on the OMR Answer-Sheet. You can do the rough work on ttre space provided in the
    Test Booklet.
N.B. : There wlll be negatlve marking @ O.2S per I (onel nark agelnst each wrong anawer.

ne                                                                              I No. of Questlons : 1OO
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 2 of 16
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1. A wire of length I and of circular       5. If two incandescent light bulbs
      cross-section of radius r has a             of 40 W and 60 W ratings are
     resistance of R ohm. Another wire            connected in series across the main
     of same material and cross-                  supply, then
     sectional radius 2r will have same
                                                  (A) the bulbs together consume
     resistance R, if the length is
                                                      100 w
     (A) 2t
                                                  (B)               together consume
     (B) 4t                                             :Tr l"to"
                                                  (C) the 60 W bulb glows brighter
     (c) ^,
         2                                        (D) the 40 W bulb glows brighter
          I
         4                                    6. A network has 4 nodes and 3
                                                  independent loops. What is the
                                                  number of branches in the
 2. Which of the following materials              network?
     possesses the least resistivity?
                                                  (A) 6
     (A) Iron
                                                  (B) s
     (B) Manganin
                                                  (c) 7
     (C) Copper
                                                  (D) 8
     (D) Aluminium
                                              7. Superposition theorem can be
 3. An electric bulb can be worked from           applicable to only
     (A) AC supply                                (A) linear network
     (B) DC supply                                (B) linear bilateral network
     (C) battery supply only                      (C) non-linear network
     (D) All of the above                         (D) bilateral network

 4. Which of the following is an active       8. An inductor stores ener5/ in what
     element of a circuit?                        form?
     (A) Resistance                               (A) Electrostatic field
     (B) Inductance                               (B) Electromagnetic lield
     (C) Capacitance                              (C) Magnetic lield
     (D) Ideal current source                     (D) Core

JE/PHE/EElrr/24148-a                      2
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 3 of 16
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9. Kirchhoff's current law at a junction   12. For . ma:rimum power transfer
           deals with                                  theorem, the value of maximum
                                                       power is
           (A) conservation of energr
                                                       (A) pmax = ufi l2nu
           (B) conservation of charge

           (C) consenration of momentum                (B) Pmax = Vh l2R,*-

           (D) consenration of power
                                                       (C) P*o = u& /+nt,


      1O. Two heaters, rated at 1 kW, 250    V         (D) Pmax = Ufi t+nfl
           each, are connected in series across
           a 250 V, 50 Hz AC mains. The total
           power drawn from the supply would
           be
                                                  13. The average power in a pure
                                                       inductive circuit is
           (A) soo w
                                                       (A) 0
           (B) 1000 w
                                                       (B) vr
           (c) 2s0 w
                                                       (C) Vf cos $ ..
           (D) 2000 w
                                                       (D) ^,6 w sin q

:     11. Two electric bulbs rated for same
i          voltage have powers of 200 W and       14. When a series R-L circuit is
 '         1OO W. If their resistances are            connected to a voltage source V at
           respectively R1 and R2, then               f = 0, the current passing through
                                                      the inductor L at t = O+ is
           (A) Rr =2Rz
                                                       (A) v lL
           (Bl Rz =2Rr
                                                       (B) inlinite
           (c) R2=4R1                                  pl vlR
           (D) R1= 4R2                                 (D) o

     JE/PHE/EE Ir/24I48-A                                                        lP.T.O.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 4 of 16
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15. A passive element in a circuit is one   18. In parallel LC circuit, what will be
      which                                       the value of current (in ampere) at
                                                  resonance?
      (A) supplies enerry
      (B) receives enerry                         (A) O

      (C) Both supplies and receives              (B) 10
           eners/

      (D) None of the above                       (c) 100

                                                  (D) Inlinite
 16. An ideal voltmeter connected across
      the terminals A and B is shown in
      the figure below :
                               l.?
                                 9^ A        19. What is the correct expression for
                               AAAH               form factor of a pure sinusoidal
  Constant current
     source with --tEl      ;4 o                  signal?
 infinite resistance
                                      B           (A) Product of Ir-" and -["ru
      It will read
      (A) 64 v                                    (B) r.rg/rr-"

      (B) 4v                                      (c) /r-"//.re
      (c) 48 v
                                                  (D) None of the above
      (D) t2 v


 17. When a network is loaded by a           20. For a certain load, the real power is
     resistance equal in value to the              lOO W and the reactive power is
      Norton's resistance, the network             IOO VAR. The apparent power is
      current is I11. The current through
      the load will be                            (A) lOO VA
      (A) rN 14
                                                  (B) 120 VA
      (B) 2/r.r
      (c) IN 12
                                                  (c) 141'4 vA

      (D) None of the above                       (D) 250 VA

JE/PHE/EE/fi/2414e-A
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 5 of 16
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21. Commutation in a DC machine may         25. A separately excited DC generator is
        be improved by                             not used because
        (A) reducing the number of turns           6) it is costly
            in the armature and segments
             of commutator                         (B) separate DC source is required
                                                        for field circuit
        (B) increasing the resistance of
             brushes                               (C) voltage drops considerably
        (c) neutralizing the reactance                 with load
            voltage by producing a reverse         (D) None of the above
            e.m.f. in the coil undergoing
            commutation
                                             26. The efficiency of a DC generator is
        (D) All of the above                       ma:rimum when its variable loss is
                                                   equal to
 22. T}:e maximum number of brushes
       which may be used in an electrical
                                                   (A) the constant loss
       machine is equal to                         (B) half of the constant loss
        (A) number of poles in the                 (c) double of the constant loss
             machine
                                                   (D) None of the above
        (B) 2
        (c) 4
        (D) Either (A) or   (B)              2"'
                                                   '3:T:T:ti:';x;1il"ffl:l't:
                                                   back e.m.f. (E6) is equal to _    of
 23.            DC machines are most               the'applied voltage.
        common.
       - (A) 2-pole                                (A) twice

        (B) 4-pole                                 (B) half
        (C) 6-po1e                                 (C) one-third
        (D) 8-pole                                 (D) None of the above

 24, The voltage equation of a DC motor      2g. DC shunt motors are used in those
        is                                        applications where             is
        (A) V=Vb+IoRo                              required.
        (B) V = Vb - IoRo                           (A) high starting torque
                       1
        (C) V = Vb - *Iopo                          (B) practically constant speed
                     '2
                                                    (c) high no load sPeed
        (D) v = vb + lrn-
                       |-a--a                       (D) variable speed

JE/PHE/EE/il124148-A                                                           lP.T.O.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 6 of 16
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29. Which motor should notbe used for             32. Slip ring motor is recommended
      centrifugal pump?                                 when

      (A) Shunt                                          (A) speed control is required

      (B) Series                                         (B) frequent starting, stopping and
                                                               reversing are required
      (C) Cumulative compound                            (c)   high starting torque is required
      (D) Differential compound                          (D)   All of the above


     A 400 kw, 3-0, 44o v, 50 Hz                   33. In case of voltage injection method of
      induction motor has a speed of                    speed control, the injected e.m.f.
      950 r.p.m. on full load. The motor                should be of
      has 8 poles. The slip of the motor
      will be                                            (A) (1-s),f

      (A) 0.01                                           (B) (2 - s).f

                                                         (C) slip frequency (s/)
      (B) 0.04
                                                         (D) supply frequency (f )
      (c) 0.05

      (D)   0.06
                                                       I\ro series motors are mechanically
                                                        coupled. One machine is run as a
                                                        motor and other as a generator. The
 31. What is the primary reason for                     iron and friction losses of the
     placing field on rotor in an                       machines will be identical when
      alternator?
                                                         (A) their speeds are identical
      (A)   Small power in the field circuit
                                                         (B) their speeds and excitations
                                                               are identical
      (B)   Insulation of high voltage is
            made easy on stator than on                  (C) their speeds are equal but
            rotor                                            back e.m.f. is the half of the
                                                               supply voltage
      (C) Large power in stator
                                                        (D) their rating and armature size
      (D) Large current in stator                              are equal

JE/PHE/EElrrl24l48-a                           6
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 7 of 16
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35. A DC series motor is running at           39. In order to reduce the cost of
      rated speed without any additional            generation of electrical energr, the
      resistance in series. If an additional        value of diversity factor (DF) and
      resistance is placed in series, then          load factor (LF) should be
      the speed of the motor                        (A) both DF and LF high
      (A) increases                                 (B) LF low and DF high
      (B) decreases                                 (c) LF high and DF 1ow
      (c) remains same                              (D) both LF and DF row
      (D) None of the above
                                               4O. In a power transformer, the breather
 36. Is it possible to have current in a            is provided in order to
      transmission line under no load               1A) filter transformer oil
      condition?
                                                    (B) prevent ingress of moisture
      (A) Yes, because of capacitance                   with air
          effect                                    (c) provide or(ygen to the cooling
      (B) No, because of proximity effect               oil
      (C) Yes, because of corona effect             (D) provide fresh air for increasing
      (D) Yes, because of skin effect                    cooling effect


 3?. If the AC supply to transformer is        41. A given amount of power is to be
      replaced by DC, then                          transmitted over a certain distance
      (A) the primary winding wn    burn            ['IfrT":",[1ffi ?}il:*,Hjj
      (B) the secondary winding will                voltage = V, load p.f. = cosQ) is
          burn
                                                    1A) directly proportional to v
      (c) the transformer has no effect             (B) inversely proportional.to v
      (D) All of the above                          (c) proportional to (l 1v2 cos2   q,1




 38. A load draws an active power P at a            (D) proportional to V2 cos2 q
      lagging power factor cos Q1. If the
      p.f. is improved to cos 02, then the     i2. ln order to improve p.f. in case of a
      leading kVAR supplied by p.f.                 3-phase load, the capacitors are
      correction equipment will be                  connected in
      (A) P(cos 02 -cos $r)                         (A) delta
      (B) P(sin 02 - sin qrl                        (B) star
      (C) P(tan$1 + tan02)                          (C) star or delta
      (D) P(tanQ1 - tanQ2)                          (D) None of the above

JE/PHE/EElrrl24l4e-a                                                             lP.T.O.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 8 of 16
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43. Fleming's left-hand rule is applicable 47. Hydroelectric power plant is
      to
                                                  (A) non-renewable source of
 .    (A) DC generator                                 6nerS/
      (B) DC motor                                18) conventional source of enerry
      (C) alternator                              (C) non-conventional source of
      (D) transformel                                  enerry

                                                  (D) continuous source of enerry
 44. The purpose of the conservator rn a
      transformer is
                                             4g. Load curve helps in deeiding
      (A) to cool the winding
      (B) to prevent moisture in the              6) total installed capacity of plant
          transformer                             (B) sizes of the generating units
                       :      _.


      (c) to prevent short circuit of             (c) operating schedule of the
          primary and secondary                        generating units
           winding
                                                  (D) All of the above
      (D) to take up contraction and
           expansion of oil
                                             49. A feeder in a transmission system
                                                  feeds power to
 45. A magnetic circuit mainly consists of
      a material having permittivity
                                                   16) generation station
      (A) high                                     (B) distributors
      (B) low
                                                   (C) senrice mains
      (C) medium
                                                   (D) All of the above
      (D) constant

                                             to' t:-:^ benefit of scADA in power
 46. cogeneration is the simultaneous              sYstem is
      generation of

      (A) heat and power                           (A) improved quality of senrice

      (B) mechanical enerry and power              (B) improved reliability
      (c) steam and condensate                     (c) Both of the above
      (D) All of the above                         (D) None of tlre above

JE/PHE/ED/il124148-A
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 9 of 16
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51. The equal area criterion of stability is       55. Polarization P in a solid dielectric is
      used for                                          related to the electric field E and
                                                         lectric flux density D by the
      (A) no load on the busbar                          relation
      (B) one machine and infinite
          busbar                                         (A) E=P+e6D
      (C) more than one machine and                      (B) D = E+ e6D
          infinite busbar
                                                         (C) D=eoB+P
      (D) None of the above
                                                         (D) D=eoP+E
52. The transient stability limit of the
      power system can be increased by             s6. The acceptance value of grounding
      introducing                                        resistance to domestic appliance is
      (A) series inductance
                                                         (A) 0.r o
      (B) shunt inductance
                                                         (B) 1o
      (C) series capacitance
                                                         (c) 10 ()
      (D) shunt capacitance
                                                         (D) 1O0 o
53. The relative permeability of
      paramagnetic material is
                                                   57. An ideal OP-AMP has
      (A) one
                                                         (A) infinite A'
      (B) less than one
      (C) little more than one                           (B) infinite 'Q

      (D) several hundred                                (C) zeto Ro
                                                         (D) All of the above
54. Which of the following materials is
     particularly suitable for uqe in
  . standard resistance coil and                   58. LEDs normally work on a voltage of
      instrument shunts?
                                                         (A) 1Vto2V
      (A) Nichrome
                                                         (B) 1o v to 2o v
      (B) Graphite
      (C) Manganin                                       (C) 50 V to 60 V
      (D) Alnico                                         (D) 100 V to 150 V

JElPHE/EElfil24l4$-L                           e                                       [P.T.O.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 10 of 16
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59. The characteristics of thyristor             62. Tlrle instrument used for        DC
       closely resemble to             the             measurement alone is
       characteristics of
                                                       (A) moving-iron type
       (A)' P-IVjunction                               (B) electrodynamic type
       (B) constant voltage source                     (C) permanent magnet type
                                                       (D) induction type
       (c) constant current source

       (D) thyratron gas tube                     63. The difference between the indicated
                                                       value by an instrument and true
                                                       value of a variable is called

 6O. The Class B push-pull amplifier has               (A) dead zone error
      the advantage of being free from
                                                       (B) relative error
      (A) any circuit imbalance                        (C) static error

      (B) unwanted noise                               (D) drift error

      (c) even-order harmonic distortion          64. which of the following instruments
                                                                            lowest power
      (D) DC magnetic saturation effect                [ljlffi",r,l"
                                                       (A) VTVM

 61. The following figure represents a/an              (B) PMMC instrument
                                                       (C) Electrostatic instrument
                                                                                             :lil
                                                       (D) d'Arsonval instrument


                                                  65. The phenomenon of creeping occurs
      (A) JV-P-/V transistor                           in
                                                       (A) ammeter
      (B) P-N-P transistor
                                                       (B) enerry meter
      (C) Zener diode
                                                       (C) wattmeter
      (D) power diode                                  (D) voltmeter

JEIPHE/EEltU24l48-a                          10
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 11 of 16
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66. CRO is used to measure                             The 2's complement of 10002 is

       (A) phase                                          (A) 1000
       (B) frequency                                      (B) 0001
       (C) voltage                                        (c) 0111
       (D) All of the above
                                                         (D) 0101

 67. Hay's bridge is particularly suited for
      measurement of                                71. The output of the logic circuit given
                                                         below represents _      gate.
       (A) capacitance over a wide range
           of values
       (B) inductance having high
                                      Qvalue
       (C) capacitance having high
                                      QvaIue
                                                          (A) NAND

       (D) inductance having low Qvalue                   (B) oR
                                                          (c) NoR
     The number 10002 is equivalent to
      decimal number
                                                          (D) AND

       (A) one thousand
                                                    72. Determine the output expression for
       (B) eight                                         the circuit shown below :
       (C) four
                                                                A
       (D) sixteen                                              B
                                                                C
                                                                D
 69. The cumulative addition of the four
       binary bits (1+1+1'r1) gives
                                                          (A)       AB+C
       (A) 1111
                                                          (B)       (A+ E/1.CD
       (B) 111
       (c) 100                                            (c)       AB+ C

       (D) 1001                                           (D)       AB+ D

JEIPHE/EE /rr124l4e-a                          11                                        lP.r.o.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 12 of 16
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73. Microprocessor 8085 is             the        7?. Resistance grounding is used for
      enhanced version of          with                 voltage between
      essentially the same construction
      set.                                               (A) 33 kV to 66 kV
      (A) 6800                                           (B) t 1 kv to 33 kV
      (B) 68000
      (c) 8O8O                                          (C) 3'3 kv to 11 kV
      (D) 80OO                                          (D) None of the above

 74. lncomputer parlance, handshaking'
      means                                        78. No ceiling fan should be installed at
      (A) checking the status register                  the height of less than
      (B) controlling the information                        2.5 m from the floor
          exchange via I/O ports
                                                        H
      .   between microcomputer and                     (B) 5.5 m from the floor
          external logic
      (c) data transmission by external                 (c) 4'5 m from the floor
          logic to r/o port                             (D) 3.S m from the floor
      (D) reading I/O port data by a
          microprocessor
                                                   79. The frequencies and voltage used in
 75. Switchgear is a device used for                    dielectric heating are
      (A) intemrpting an electrical
          circuit                                       (A) 10 MHz-3O MHz up to 25 kV
      (B) switching an electrical circuit               (B) 5O MHz-60 MHz up to 25 kV
      (C) switching and controlling an
          electrical circuit
                                                        (C) l0 MHz-30 MHz up to 1O0 V
      (D)switching,controllingand(D)5oMHz-6oMHzupto23oV
          protecting the electrical circuit
          and equipment
                                                   8O. The loads on 3-phase, 4-wire
 76. An isolator is installed                           distributor are usually
      (A) to operate the relay of t,.e
          circuit breaker (CB)
                                                        (o) balanced
      (B) as a substitute for CB                        (B) unbalanced
      (C) always independent of the
          position of cB
                                                        (c) either balanced or unbalanced
      (D) generally on both sides of a CB               (D) None of the above

JE/PHE/EEfirl24l4e-L                          t2
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 13 of 16
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81. When the length of cable increases, 85. The material used for fuse must have
     its capacitance
                                             (A) low melting point and high
     (A) decreases                               specific resistance
      (B) increases
                                                   (B) low melting Point and low
      (C) remains same                                  specific resistance

      (D) None of the above
                                                   (c) high melting point and low
                                                        specific resistance

82. A wattmeter measures: power.
                                                   (D) low melting point and any
      (A) instantaneous                                 specilic resistance

      (B) apparent
      (c) reactive                            86. which IE rule is applicable to service
                                                   mains?
      (D) average
                                                    (A) Rule 30
 83. 8085 is capable of addressing
      of memory.                                    (B) Rule 33

      (A) 8K                                        (C) Rule 77
      (B) 16K
                                                    (D) All of the above
      (c) 24K
      (D) 64K
                                              87. Which among the following fuses is
                                                   very fast in operation?
 84. How many buses are connected as a
      part of 8085 microprocessor?                  (A) Semiconductor fuse
      (A) 2
                                                    (B) High rupturing capacity fuse
      (B) 3
                                                    (C) Kit Kat fuse
      (c) s
      (D) 8                                         (D) Cartridge fuse

JE/PHE/EEltrl24l48-L                     13                                      lP.T.O.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 14 of 16
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88. Steel rail poles of height 13 meters    91. In monthly maintenance of storage
      are used for transmission purpose           batteries, which activity is
      of _    voltage.                             performed?

                                                   (A) Voltages
      (A) 33 kV
                                                   (B) Cleaning
      (B) 11 kv                                    (C) Terminals

      (c) 22 kv                                    (D) All of tl:e above

      (D) Both (A) and (B)                   92. ln annually inspection, which is        .


                                                  mainly inspected in less than
                                                  .lOO kVA transformer?

 89. On which of the following, routine            (A) Fire system
      tests are conducted?
                                                   (B) Core
      (A) Oil circuit breakers (CBs)               (C) Coil
                                                   (D) oil
      (B) Air blast CBs

      (c) Minimum oil CBs                    93. In annually inspection, which is
                                                   mainly inspected in overhead tine?

      (D) All of the above                         (A) Insulation
                                                   (B) Tower
                                                   (c) Earth wire
 9o. which among the following is a
      commissioning check during site             (D) All of t.Le above
     testing for an induction motor?

     (A) Insulation resistance
                                             94' which of the following is nof, a type
                                                  of electric resistance welding?

     (B) Terminal shrouds                         (A) Butt welding
                                                  (B) Seam welding
     (C) Heater supply
                                                  (C) Helium welding
     (D) All of the above                         (D) Spot welding
JElPHE/EEltr/24148-A                    t4
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 15 of 16
Page 15 of 16
Text of page 15
95. Biogas mainly consists of             98. For any medium, electric flux density
                                                    D and electric intensitY E are
          (A) fossil                                related as
                                                    rvrq


          (B) cowdung                               (A) D=eoE

          (C) petroleum                              (B) D = eo lE

          (D) All of the above                       (C) D = E leoe,

                                                     (D) D = Eoer4
     95. Which of the following is a
         conventional source of enerry
         derived from decayed plant and
          animal remains?                      99. Most of single-phase induction
                                                     motors are         machines.

          (A) Wind                                                -
                                                     (A) 2-pole
          (B) Geothermal
                                                     (B) 6-pole
          (C) Solar
                                                     (c) 8-pole
          (D) Coal
                                                     (D) 4-pole


,     97. Which non-conventional source of
i:         enerry involves tapping into the    loo' A synchronous motor delivers
           Barth,s internal heat for power           reactive Power when
          generation?
           (A) Solar enerry                          (A) over-excited

           (B) Wind enerry                           (B) under-excited

           (c) Geothermal enerry                     (c) normally excitid

           (D) Tidal enerry                          (D) None of the above

     JE/PHE/EElIll24l48-a                 15                                        lP.T.O.
APSC JE 2024 question paper, Junior Engineer, Public Health Engineering Department (Advt. 29/2023), Electrical Engineering, page 16 of 16
Page 16 of 16
Text of page 16
SPACE FOR ROUGH WORX

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       JE/PHE/EE/rrl24l48-A           16             24T-425x4
Page 1 of 16

Source: Assam Public Service Commission. Question paper published by Assam Public Service Commission.

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