# APTRANSCO/APGENCO Assistant Engineer AE Electrical Previous Question Papers  | Indian Shout

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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.

Q.1 The two windings of a transformer is
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)  I
(B) (Ia)2
(C)  1/I
(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.
(C)  lagging p.f.
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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### 85 Comments to “APTRANSCO/APGENCO Assistant Engineer AE Electrical Previous Question Papers”

1. Krishna Naik says:

sir could you plz send me aptransco/genco all previous papers.
e-mail:krishnanaik321@gmail.com

2. alekhya says:

hi sir plz send apgenco& aptransco previous papers with solutions to my mail id alekhyaeee2013@gmail.com

3. praveen says:

Sir,plz suggest me which materials I should prefer to prepare apgenco&aptransco
plzzzzz
j.praveen218@gmail.com

4. anil kumar sammeta says:

sir , plz could you send previous question and answer papers to my mail…
anil.sammeta91@gmail.com

5. satish says:

sir,plz send me apjenco,tranco previous papers with solutions to my mail

6. lysetti naresh says:

send previous papers to my email:lysetti.naresh@gmail.com

7. mehtaz begum.s says:

Sir could you please add previous question papers of Ap Transco and Genco.

8. swaraj says:

pls send me apgenco transco ae previous question papers with solutions and the study material to prepare…
swaraj810@gmail.com
9703367664

9. subhan says:

please send me apzenco and transco previous question papers to my mail…
thanku

10. m.kodandareddy says:

plz send me aptransco and apgenco ae electrical previous question papers with solutions to my mail.. thank u sir..

11. srinubudha says:

hello sir i want to apgenco &transco previous questions in my mail

12. b.gandhi says:

hi sir
plz send me ap janco question paper with solution to my mail

13. b.gandhi says:

hi sir could you plz send me ap janco ap Transco question papers with answers paper to my mail.

14. K.RAVI says:

pls send previous elec question papers and also send on which books they have covered.

15. Bhikshalu says:

Sir,please send previous year AP Transco papers with solution to my mail

16. deepthi says:

sir, can you please suggest me books for ap genco exam for electrical.also pls send me previous ap genco papers with solutions to my mail

17. santosh kumar says:

hi sir please send eee study material

18. santosh kumar says:

hi sir plese send privious apgenco and aptrnsco quistion papers with soluitions and stydy material for apgenco&aptransco. my mail id sankarrao211@gmail.com

19. k.divya says:

sir plz sent previous question papers for ap genco and tansco

20. Dheeraj says:

sir,please send me All previous years question papers of Aptransco & Apgenco with solutions to my mail id :- dheerajteja.ch@gmail.com please sir and thank you

sir, plz sent previous papers apgenco&aptransco papers with solutions to my mail and also the study materials regarding apgenco&aptransco , and also the application form for 2013 apgenco and aptransco

sir, plz sent previous years aptransco & apgenco papers with solutions to my mail

23. mallikarjuna says:

sir please.. send me apzenco previous papers with answers thank u sir..

24. bharathi says:

gud morng sir…. will u pls sent me previous question papers with answers from 1992 -2012 to my mail.id ssbharathi26@gmail.com. pls sir,than u

25. srikanth says:

sir plz send me sail previous papers. Plz plz

26. jyothi says:

sir, plz sent apgenco electrical papers with solutions.thank you

27. subbarao says:

please send me apgenco and ap tranco previous qestion papers

28. p.indira says:

send me 1992-2012 aptranco and apgenco question papers

29. saidurgarao says:

sir pls add some more competative exams like these with answers,i.e for eletrical

30. sir plz send me 1992-2012 question papers of aptransco& apgenco to my mail id i.e, payalvitamcoe@gmail.com plzzzzzzzzzzzzzzzzzzzzz

31. swaroop says:

sir

please up date previous question papers of apgenco & aptranco
when you are updated give me message to my mail id:- k.n.swaroop9@gmail.com
or send me web site address to my mail id , when you are updated

32. nagoor says:

sir
pl send aptransco&apgenco previoul papers with solutiont my id:shaiknagoor125@gmail.com

sir,could you pls send apgenco and transco old papers

34. santhosh says:

would you send me previous Coal India Limited,Sail exam papers to my mail……………..plz plz

35. g.pavan says:

sir,plz sent previous years apgenco&aptransco papers with solutions to my mail