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APTRANSCO/APGENCO Assistant Engineer AE Electrical Previous Question Papers


Here we are providing you the APTRANSCO/APGENCO Questions with Answers.These questions were collected from previous APTRANSCO/APGENCO papers & these questions will be helpful for both APTRANSCO/APGENCO AE Written Examination.More APTRANSCO & APGENCO previous question papers will be updated here very soon.
 
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Q.1 The two windings of a transformer is
(A)   conductively linked.
(B)  inductively linked.
(C)  not linked at all.
(D)  electrically linked.
Ans : B
 
Q.2 A salient pole synchronous motor is running at no load.  Its field current is switched off. The motor will
(A) come to stop.
(B) continue to run at synchronous speed.
(C) continue to run at a speed slightly more than the synchronous speed.
(D) continue to run at a speed slightly less than the synchronous speed.
Ans: B
 
Q.3 The d.c. series motor should always be started with load because
(A) at no load, it will rotate at dangerously high speed.
(B) it will fail to start.
(C) it will not develop high starting torque.
(D) all are true.
Ans: A
 
Q.4 The frequency of the rotor current in a 3 phase 50 Hz, 4 pole induction motor at full load speed is about
(A) 50 Hz.
(B)  20 Hz.
(C) 2 Hz.
(D)  Zero.
 Ans: C
 
Q.5 In a stepper motor the angular displacement
(A) can be precisely controlled.
(B) it cannot be readily interfaced with micro computer based controller.
(C) the angular displacement cannot be precisely controlled.
(D) it cannot be used for positioning of work tables and tools in NC machines.
 Ans: A
Q.6 The power factor of a squirrel cage induction motor is
(A) low at light load only.
(B) low at heavy load only.
(C) low at light and heavy load both.
(D) low at rated load only.
Ans: A
 
Q.7 The generation voltage is usually
(A)  between 11 KV and 33 KV.
(B)  between 132 KV and 400 KV.
(C)  between 400 KV and 700 KV.
(D)  None of the above.
 Ans: A
 
Q.8 When a synchronous motor is running at synchronous speed, the damper winding produces
(A)  damping torque.
(B)  eddy current torque.
(C)  torque aiding the developed torque.
(D)  no torque.
Ans: D
 
Q.9 If a transformer primary is energised from a square wave voltage source, its output voltage will be
(A)  A square wave.
(B)  A sine wave.
(C) A triangular wave.
(D)  A pulse wave.
 Ans: A
 
Q.10 In a d.c. series motor the electromagnetic torque developed is proportional to
(A)  Ia 
(B) (Ia)2
(C)  1/Ia 
(D) 1/(Ia)2
 Ans: B
 
Q.11 In a 3 – phase induction motor running at slip ‘s’ the mechanical power developed in terms of air gap power
(A) (s-1)Pg
( B) Pg/(1-s)
(C) (1-s)Pg
(D) s.Pg
 Ans: C
 
Q.12  In a 3 – phase induction motor the maximum torque
(A)   is proportional to rotor resistance r2
(B)   does not depend on r2
(C)  is proportional to sqrt(r2)
(D) is proportional to (r2)2
 Ans: B
 
Q.13 In a d.c. machine, the armature mmf is 
(A)  stationary w.r.t. armature.
(B)  rotating w.r.t. field.
(C) stationary w.r.t. field.
(D)  rotating w.r.t. brushes.
 Ans: C
 
Q.14 In a transformer the voltage regulation will be zero when it operates at
(A)  unity p.f.
(B)  leading p.f.
(C)  lagging p.f.
(D)  zero p.f. leading.
 Ans: B
 
Q.15 The maximum power in cylindrical and salient pole machines is obtained respectively at load angles of
(A)  900,900
(B) <900,900
(C)   900,>900
(D) 900,<900
Ans: D
 
Q.16 The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply.  The secondary output voltage will be
(A)  3.6 V.
(B)  2.5 V.
(C)  3.0 V.
(D)  6.0 V.
Ans: C
 
Q.17 The emf induced in the primary of a transformer
(A)  is in phase with the flux.
(B)  lags behind the flux by 90 degree.
(C)  leads the flux by 90 degree.
(D)  is in phase opposition to that of flux.
Ans: C
 
Q.18 The relative speed between the magnetic fields of stator and rotor under steady state operation is zero for a
(A) dc machine.
(B)  3 phase induction machine.
(C)   synchronous machine.
(D)  single phase induction machine.
Ans: all options are correct
 
Q.19 The current from the stator of an alternator is taken out to the external load circuit through
(A)  slip rings.
(B)  commutator segments.
(C)  solid connections.
(D)  carbon brushes.
 Ans: C
 
Q.20 A motor which can conveniently be operated at lagging as well as leading power factors is the
(A)  squirrel cage induction motor.
(B)  wound rotor induction motor.
(C)  synchronous motor.
(D)  DC shunt motor.
Ans: C
 
Q.21 A hysteresis motor
(A)  is not a self-starting motor.
(B)  is a constant speed motor.
(C)  needs dc excitation.
(D)  can not be run in reverse speed.
 Ans: B
 
Q.22 The most suitable servomotor for low power applications is
(A) a dc series motor.
(B)  a dc shunt motor.
(C)  an ac two-phase induction motor.
(D)  an ac series motor.
Ans: B
Q.23 The size of a conductor used in power cables depends on the
(A)  operating voltage.                                               (B)  power factor.
(C)  current to be carried.                                          (D)  type of insulation used.Ans: CQ.24 Out of the following methods of heating the one which is independent of supply frequency is

(A)  electric arc heating                     (B)  induction heating              (C)  electric resistance heating                (D)  dielectric heating

Ans: C

Q.25 A two-winding single phase transformer has a voltage regulation of 4.5% at full-load and unity power-factor.  At full-load and 0.80 power-factor lagging load the voltage regulation will be

(A)  4.5%.           (B)  less than 4.5%.               (C)  more than 4.5%.                     (D)  4.5% or more than 4.5%.

Ans: C

Q.26 In a dc shunt motor the terminal voltage is halved while the torque is kept constant. The resulting approximate variation in speed ” ω” and armature current “Ia‘” will be
(A)  Both ω and Ia are doubled.
(B) ω is constant and Ia is doubled
(C) w is doubled while Ia is halved
(D) w is constant but Ia is halved
Ans: B
 
Q.27  A balanced three-phase, 50 Hz voltage is applied to a 3 phase, 4 pole, induction motor.  When the motor is delivering rated output, the slip is found to be 0.05. The speed of the rotor m.m.f. relative to the rotor structure is
(A) 1500 r.p.m.
(B)  1425 r.p.m.
(C)  25 r.p.m.
(D)  75 r.p.m.
 Ans: D
 
Q.28 An alternator is delivering rated current at rated voltage and 0.8 power-factor lagging case. If it is required to deliver rated current at rated voltage and 0.8 power-factor leading, the required excitation will be
(A)  less.
(B)  more.
(C)  more or less.
(D)  the same.
Ans: B
 
Q.29  A ceiling fan uses
(A) split-phase motor.
(B) capacitor start and capacitor run motor.
(C) universal motor.
(D) capacitor start motor.
 Ans: D
 
Q.30  A stepper motor is
(A) a dc motor.                 (B)  a single-phase ac motor.            (C)  a multi-phase motor.             (D)  a two phase motor.
Ans: D
 
Q.31  The ‘sheath’ is used in cable to
(A)  provide strength to the cable.
(B)  provide proper insulation.
(C)  prevent the moisture from entering the cable.
(D) avoid chances of rust on strands.
 Ans: A
 
Q.32 The drive motor used in a mixer-grinder is a
(A)  dc motor.            (B)  induction motor.           (C)  synchronous motor.               (D)  universal motor.
Ans: DQ.33  A 1:5 step-up transformer has 120V across the primary and 600 ohms resistance across the secondary.  Assuming 100% efficiency, the primary current equals(A)  0.2 Amp.          (B)  5 Amps.               (C)  10 Amps.          (D)  20 Amps.

Ans: A

Q.34  A dc shunt generator has a speed of 800 rpm when delivering 20 A to the load at the terminal voltage of 220V.  If the same machine is run as a motor it takes a line current of 20A from 220V supply.  The speed of the machine as a motor will be
(A) 800 rpm.             (B)  more than 800 rpm.               (C) less than 800 rpm.       (D)  both higher or lower than 800 rpm.
 Ans: C
 
Q.35  A 50 Hz, 3-phase induction motor has a full load speed of 1440 r.p.m. The number of poles of the motor are
(A) 4.                  (B)  6.                      (C)  12.                       (D)  8.
 Ans: A

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51 Comments to “APTRANSCO/APGENCO Assistant Engineer AE Electrical Previous Question Papers”

  1. kumar Apum says:
    February 27, 2012 at 11:01 pm

    Please send me other questions papers of Electrical engineering with solutions.

  2. santhosh says:
    February 23, 2012 at 3:50 pm

    Hai sir……! i want aptransco sub-engineers previous exam question papers. plz send them to my mail. plz sir……………………………………………………………………………………………………………………………………

  3. saidulu.s says:
    January 25, 2012 at 4:29 pm

    hello sir please send me to aptransco ae previous papers…………please sir

  4. hruday says:
    January 25, 2012 at 1:42 pm

    Its good to focus on power system subject more in depth.

  5. hruday says:
    January 25, 2012 at 1:40 pm

    There is no Aptitude for transco exam, its purely based on the core subject.

  6. hruday says:
    January 25, 2012 at 1:38 pm

    Hello friends you can focus mostly on the basic concepts of the each chapter/unit. Competitive exams like genco and transco mainly focus on the basic concepts which shows path to the subject. PE( fundamentals), CS( bode, Nyquist gain margins etc). Mach( AC machines), Networks( transients), Measurements (general topics, principles, advantages and disadvantages, formulas. PT, CT and bridges concepts). These are the key areas. All the best. You can prepare from book bank like integrated course in electrical engineering by J B Gupta for practicing. I find this book helpful. All the best.

  7. sushma says:
    January 24, 2012 at 12:09 pm

    thank u sir and i am preparing for transco just 6 days r there so i want to get job so plz tell me which sub can i prepare to get job i this days

  8. pradeep says:
    January 23, 2012 at 4:17 pm

    can any 1 plz tell me whether aptitude is thr r not for transco?

  9. Murali says:
    January 23, 2012 at 2:42 pm

    Hi Friends,
    Could you please suggest send me or tell me the link from where can I get the APTRANSO previous papers.Please send it to gmurali.ds@gmail.com

    Thanks in advance :-)

  10. zia says:
    January 22, 2012 at 11:32 pm

    Sir,please send me previous electronics ae question papers with solutions to my mail.please i want to prepare well for examination.

  11. Ananth Reddy says:
    January 22, 2012 at 10:48 pm

    Sir,

    please send me previous Electrical AE question papers with solutions to my mail.please sir these questions will helps me in preparation.

  12. jayasri.y says:
    January 21, 2012 at 7:55 pm

    hi sir/mam……good work,but please provide some more questions for preparation…….

  13. c swathi says:
    January 20, 2012 at 10:37 pm

    Sir can u pls send me previous question paper of apgenco mechanical

  14. jayasree says:
    January 20, 2012 at 7:50 pm

    Sir, i want AP Genco and Transco Electrical previous question papers please send the LINK to me. please..

  15. mujahed says:
    January 20, 2012 at 5:51 pm

    sir plz send me previous papers with telecom sir bcz i applied aptransco……..sir i want to preipare well fr eaxmination……….

  16. vinod says:
    January 20, 2012 at 2:26 pm

    sir, please send me the apgenco previous question paper with ans plz sir plzzzzzzzzzzzzz

  17. A Ramesh Babu says:
    January 20, 2012 at 12:59 pm

    sir please send me APTransco AE Previous and model question papers plsssssssssssss.pls send as soon as possible so that i can study for the upcoming exam

  18. sahil says:
    January 19, 2012 at 8:23 pm

    Sir, its very happy to have this site.pls send me previous electrical genco & trans co question papers with ans to my mail.
    pls sir i want prepare well for examination .my email sahilkhan07@gmail.com

  19. javeed says:
    January 18, 2012 at 11:07 am

    JAVEED says:
    January 8, 2012 at 7:26 pm

    Sir, its very happy to have this site.pls send me previous electrical genco &trans co question papers with ans to my mail.
    pls sir i want prepare well for examination .my email javedbasha.shaik@gmail.com

  20. prathi says:
    January 17, 2012 at 10:10 am

    hello sir.. please send me transco previous papers sir please ..
    i will be thankful to you sir..
    my mail id :prathiba48@yahoo.com

  21. venkatesh says:
    January 16, 2012 at 6:41 pm

    sir i need apgenco electrical ae previous question papers

  22. VENU MADHAVI says:
    January 16, 2012 at 4:53 pm

    sir, please send me the previous question papers of AP GENCO and AP TRANSCO

  23. venu says:
    January 16, 2012 at 2:14 pm

    Sir,please send me previous electronics ae question papers with answers to my mail….

  24. usha says:
    January 15, 2012 at 8:52 pm

    sir plz send me the apgenco and transco previous papers

  25. raju says:
    January 15, 2012 at 8:41 pm

    sir plz send me elctrical ae qustion papers with solutions to my mail

  26. sravan kumar says:
    January 8, 2012 at 10:45 pm

    Sir plz send me previous electrical AE quetion papers with solutions to my mail sir………pllllzzzzzzzzzzzzzzz

    This is sravan

  27. karthi says:
    January 8, 2012 at 9:27 pm

    sir pls send me previous electrical genco &trans co question papers with ans to my mail.
    pls sir i want prepare well for examination

  28. ramu says:
    January 8, 2012 at 7:26 pm

    Sir, its very happy to have this site.pls send me previous electrical genco &trans co question papers with ans to my mail.
    pls sir i want prepare well for examination .my email ramu.macha233@gmail.com

  29. spandu says:
    January 8, 2012 at 5:29 pm

    sir i want previous apgenco/aptransco AE electronics question papers so i request you to send it to my mail and im thanks for providing Digital Electronics notes

  30. baru says:
    January 4, 2012 at 10:55 pm

    sir pls send me previous electrical genco &trans co question papers with ans to my mail.
    pls sir i want prepare well for examination .my email ade_ktpp@yahoo.co.in

  31. ajay you says:
    January 4, 2012 at 6:22 pm

    Sir,please send me previous electronics ae question papers with solutions to my mail…. thanq sir

  32. sravan says:
    January 4, 2012 at 1:09 pm

    sir please send me AE electronics previous papers with answers and model papers with answers

  33. koushik says:
    January 2, 2012 at 6:25 pm

    Sir, its very happy to have this site. We want more previous electically related papers of various competitive exams.

  34. Sriveni says:
    January 1, 2012 at 9:31 pm

    Sir, i want AP Genco and Transco (EEE & ECE)previous question papers please send the LINK to me. please..

  35. Sriveni says:
    January 1, 2012 at 9:28 pm

    Sir,please send me previous electronics ae question papers with solutions to my mail.please i want to prepare well for examination.

  36. LEELA PRASAD VUTUKURI says:
    December 31, 2011 at 7:45 pm

    sir, i want ap genco and transco privious question papers please send the LINK to me…….please..
    thank u ….

  37. neha says:
    December 31, 2011 at 4:29 pm

    sir.please send me previous papers of genco n transco with solutions ,n i would like to know is there any negative marking?

  38. venu says:
    December 30, 2011 at 9:58 pm

    sir please send me previous electronics ae question papers with solutions to my mail.please sir i want to prepare well for examination. ap transco and ap genco exams

  39. LAVANYA says:
    December 30, 2011 at 11:47 am

    sir please send me previous electronics ae question papers with solutions to my mail.please sir i want to prepare well for examination. ap transco and ap genco exams

  40. sureshyacham says:
    December 30, 2011 at 11:26 am

    sir please send transco genco last 3years quation papers

  41. saichandra says:
    December 27, 2011 at 7:36 pm

    sir please send me previous electronics ae question papers with solutions to my mail.please sir i want to prepare well for examination.

  42. krishnaveni says:
    December 27, 2011 at 6:23 pm

    sir please send me previous electrical ap genco and trans co question papers with answer to my mail. krishnaveni.jalela@gmail.com

  43. bsreenu says:
    December 27, 2011 at 4:42 pm

    plea send question papers

  44. suresh says:
    December 26, 2011 at 12:37 am

    sir, please send ap genco and transco previous papers to my mail: msh07257@gmail.com
    or send me link …..

  45. suresh says:
    December 26, 2011 at 12:29 am

    sir, i want ap genco and transco privious question papers please send the LINK to me…….please..
    thank u ….

  46. Purush says:
    December 26, 2011 at 12:15 am

    Hi All,
    Please send the previous exam question papers to this mail id purush.teja@gmail.com.

  47. vijayalakshmi says:
    December 24, 2011 at 4:56 pm

    please send me previous electronics ae question papers with solutions to my mail.please i want to prepare well for examination.

  48. kiran says:
    December 24, 2011 at 12:28 pm

    sir pls send me previous electrical genco &trans co question papers with ans to my mail.
    pls sir i want prepare well for examination .my email:m.kiran226gmail.com

  49. priyanka says:
    December 23, 2011 at 3:10 pm

    sir please send me previous electronics ae question papers with solutions to my mail.please sir i want to prepare well for examination.

  50. anjali says:
    December 23, 2011 at 12:33 pm

    nice to have this site……. its very helpful but only limited ques are displayed…… we need still more ques pls

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