TN 12th Question Paper 2024 Basic Electrical Engineering

TN PUBLIC EXAM

QUESTION
PAPER
2024

No. of Printed Pages : 7
7482
!7482BasicElectEnginee! £vÄ Gs
Register Number

Part III — Vocational Subjects
Ai¨£øh ªß ö£õÔ°¯À & P¸zv¯À
BASIC ELECTRICAL ENGINEERING - THEORY
( uªÌ ©ØÖ® B[Q» ÁÈ / Tamil & English Version )

Põ» AÍÄ : 3.00 ©o ÷|µ® ] [ ö©õzu ©v¨ö£sPÒ : 90
Time Allowed : 3.00 Hours ] [ Maximum Marks : 90

AÔÄøµPÒ : (1) AøÚzx ÂÚõUPЮ \›¯õP £vÁõQ EÒÍuõ GߣuøÚ \›£õºzxU
öPõÒÍÄ®. Aa_¨£v¨¤À SøÓ°¸¨¤ß AøÓU PsPõo¨£õÍ›h®
EhÚi¯õPz öu›ÂUPÄ®.
(2) }»® AÀ»x P¸¨¦ ø©°øÚ ©mk÷© GÊxÁuØS®
AiU÷PõikÁuØS® £¯ß£kzu ÷Ásk®. £h[PÒ ÁøµÁuØS
ö£ß]À £¯ß£kzuÄ®.
Instructions : (1) Check the question paper for fairness of printing. If there is any lack of fairness,
inform the Hall Supervisor immediately.
(2) Use Blue or Black ink to write and underline and pencil to draw diagrams.

£Sv & I / PART - I

SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 15x1=15

(ii) öPõkUP¨£mkÒÍ |õßS ©õØÖ ÂøhPÎÀ ªPÄ® Hئøh¯
Âøhø¯z ÷uº¢öukzxU SÔ±mkhß Âøh°øÚ²® ÷\ºzx GÊuÄ®.
Note : (i) Answer all the questions.
(ii) Choose the most appropriate answer from the given four alternatives and write
the option code and the corresponding answer.

[ v¸¨¦P / Turn over

7482 2

1. __________ Gߣx ö£õ¸mPÎß öÁ¨£¨ £s¦PÎÀ JßÖ.
(A) öÁ¨£U Phzx vÓß (B) ö|õ¢u Pøͨ¦
(C) ußø©°ÇzuÀ (D) PiÚzußø©
Which of the following are the thermal properties of materials ?
(a) Thermal conductivity (b) Fatigue
(c) Creep (d) Hardness

2. ÷µõ÷£õUPøÍ C¯USÁuØS £¯ß£k® ÷©õmhõº Gx ?
(A) ¤›¢u {ø» ÷©õmhõº (B) ²ÛÁº\À ÷©õmhõº
(C) {ÇÀ x¸Á ÷©õmhõº (D) £i{ø» ÷©õmhõº
Which motor is used to drive robots ?
(a) Split phase motor (b) Universal motor
(c) Shaded pole motor (d) Stepper motor

3. PLC Gߣuß Â›ÁõUP® :
(A) Programming Logic Controller (B) Progressive Logic Controller
(C) Prevented Logic Controller (D) Protected Logic Controller
The expansion of PLC is __________.
(a) Programming Logic Controller (b) Progressive Logic Controller
(c) Prevented Logic Controller (d) Protected Logic Controller

4. uk¨¦ {Özu ÁøP ªßPõ¨£õß uøµ°À C¸¢x __________ E¯µzvÀ Aø©UP¨£h
÷Ásk®.
(A) 5 « (B) 2 « (C) 4 « (D) 3 «
Stay insulators are provided to a height of _________ above the ground level.
(a) 5m (b) 2m (c) 4m (d) 3m

5. ªßÚP® Gߣx __________ BÀ BÚx.
(A) Põ¨¤h¨£mh A¾ªÛ¯®
(B) A¾ªÛ¯®
(C) Põ¨¤h¨£mh GLS
(D) GLS
The armature is made up of __________.
(a) Laminated Aluminium
(b) Aluminium
(c) Laminated Steel
(d) Steel

3 7482

6. J¸ {ø»UPõÚ _¸Ò öuõSvPÎß GsoUøP¯õÚx x¸Á[PÎß
GsoUøPUS \©©õP C¸¨¤ß Ax __________ GÚ¨£k®.
(A) •Êa _¸Ò EÀø» (B) Aøµa _¸Ò EÀø»
(C) \©{ø» EÀø» (D) Cµmøh AkUS EÀø»
If the number of coil groups per phase is equal to the number of poles, then the winding is
called as __________.
(a) Whole coil winding (b) Half coil winding
(c) Balanced winding (d) Double layer winding

7. |õßS •øÚ xÁUQ°À, NVR Põ°ø» ¦»a _¸Ðhß G¢u Cøn¨¤À CønUP
÷Ásk® ?
(A) ÷|µi¯õP (B) öuõhº
(C) öuõhº ©ØÖ® Cøn¯õP (D) Cøn¯õP
In Four point starter, how the No Volt Release coil should be connected with the field coil ?
(a) directly (b) in series
(c) in series and parallel (d) in parallel

8. J¸ Svøµz vÓß Gߣx :
(A) 746 Áõmì (B) 736 Áõmì (C) 766 Áõmì (D) 756 Áõmì
One Horse Power is equal to :
(a) 746 Watts (b) 736 Watts (c) 766 Watts (d) 756 Watts

9. C¢v¯õÂÀ ªß\õµ Aø» ÷ÁP©õÚx __________ BS®.
(A) 50 öíºmì (B) 60 öíºmì (C) 45 öíºmì (D) 70 öíºmì
In India, the current frequency adopted is __________.
(a) 50 Hz (b) 60 Hz (c) 45 Hz (d) 70 Hz

10. ªß\õµ Â{÷¯õPzvØS __________ •UQ¯©õÚ £Sv BS®.
(A) Pmk¨£õmk _Âma (B) ªß_ØÖ Pmk¨£õmk £»øP
(C) vÓß ªß_ØÖ (D) _Âma
For electrical power distribution system, __________ is an important part.
(a) Control switch (b) Panel board
(c) Power circuit (d) Switch

[ v¸¨¦P / Turn over

7482 4

11. x¸Á Cøhzyµ® Gߣx __________.
(A) J¸ x¸ÁzvÀ EÒÍ, J¸ {ø»UPõÚ £ÒÍ[PÎß GsoUøP
(B) J¸ x¸ÁzvØPõÚ £ÒÍ[PÎß GsoUøP
(C) £ÒÍ[PÎß £õv GsoUøP
(D) J¸ {ø»UPõÚ £ÒÍ[PÎß GsoUøP
Pole pitch is referred to as __________.
(a) the number of slots per pole per phase
(b) the number of slots per pole
(c) half of the number of slots
(d) the number of slots per phase

12. A¾ªÛ¯zvß E¸S {ø» AÍÄ __________.
(A) 7288C (B) 10858C (C) 2308C (D) 6608C
The melting point of Aluminium is :
(a) 7288C (b) 10858C (c) 2308C (d) 6608C

13. ¦À»m µ°ÀPÒ ©oUS __________ ÷ÁPzvÀ C¯[S®.
(A) 400 Q.«. (B) 800 Q.«. (C) 300 Q.«. (D) 600 Q.«.
Bullet trains run at a speed of __________ per hour.
(a) 400 km (b) 800 km (c) 300 km (d) 600 km

14. SÇõ´ {» Cøn¨¤À E£÷¯õP©õS® x¸¨¤iUPõu C¸®¦U SÇõ°ß Âmh®
__________.
(A) 38 ª.«. (B) 30 ª.«. (C) 42 ª.«. (D) 34 ª.«.
In pipe earthing, the Galvanized iron pipe is having the diameter of __________.
(a) 38 mm (b) 30 mm (c) 42 mm (d) 34 mm

15. DC C¯UPzvß ÷ÁP® __________ I¨ ö£õÖzux.
(A) AvºöÁs (B) ªß÷Úõmh®
(C) ªßvÓß (D) ªßÚÊzu®
The speed of the DC drive depends on __________.
(a) Frequency (b) Current
(c) Power (d) Voltage

5 7482

£S-v & II / PART - II
SÔ¨¦ : GøÁ-÷¯-Ý® £zx ÂÚõU-P-ÐUS Âøh-¯-ÎU-P-Ä®. ÂÚõ Gs 28 &US
Pm-hõ-¯-©õP Âøh-¯-ÎU-P-Ä®. 10x3=30
Note : Answer any ten questions. Question number 28 is compulsory.

16. L¤Íª[Qß ChUøP Âvø¯U TÖP.
State Fleming’s left hand rule.

17. xÁUQPÒ CÀ»õ©À ÷|ºvø\ ªß÷Úõiø¯ C¯UQÚõÀ, Bº©a`º
ªß÷ÚõmhzvÚõÀ HØ£k® ÂøÍÄPøÍz u¸P.
State the effects caused by the flow of heavy armature current in DC motor without starters.

18. ö£õÔ°¯À ö£õ¸mPøÍ SÔ¨¤mh ÷uøÁUS ÷uº¢öukUS®÷£õx PÁÛUP
÷Ási¯ A®\[PÒ ¯õøÁ ?
What are the factors to be considered while selecting the materials for engineering
applications ?

19. ÷\øÁ ÁÈzuh® GßÓõÀ GßÚ ?
What do you mean by service lines ?

20. ©zv¯ ö\¯»õUP A»S (CPU) – Áøµ¯ÖUPÄ®.
Define Control Processing Unit (CPU).

21. ªß_ØÖ Pmk¨£õmk¨ £»øP°ß ÁøPPøͨ £mi¯¼kP.
List out the types of panel board.

22. öÁ¨£ CÖS ÁøP ¤ÍõìiU ©ØÖ® öÁ¨£ CÍS ÁøP ¤ÍõìiU GßÓõÀ
GßÚ ?
What is Thermo set plastic and Thermo plastic ?

23. {» Cøn¨¤À ¤ß£ØÓ¨£k® £õxPõ¨¦ ÁÈ•øÓPÒ H÷uÝ® ‰ßÔøÚz
u¸P.
Give any three safety measures followed in earthing.

[ v¸¨¦P / Turn over

7482 6

24. J¸ {ø» ªß÷Úõi Hß uõÚõP _Ç»z xÁ[SÁvÀø» ?
Why single phase motor is not self starting ?

25. ©õÔ AvºöÁs C¯UQ GßÓõÀ GßÚ ?
What is variable frequency drive ?

26. uß ø©¯ EÀø» GßÓõÀ GßÚ ?
What is concentric winding ?

27. {» Cøn¨¤ß ÁøPPøÍU TÖP.
State the types of earthing.

28. ÷|ºvø\ ªßÚõUQ GßÓõÀ GßÚ ?
What is DC Generator ?

£S-v & III / PART - III
SÔ¨¦ : GøÁ- ÷ ¯- Ý ® I¢x ÂÚõU- P - Ð US ©mk® Âøh- ¯ - Î U- P - Ä ®. ÂÚõ Gs
35 &US Pm-hõ-¯-©õP Âøh-¯-ÎU-P-Ä®. 5x5=25
Note : Answer any five questions. Question number 35 is compulsory.

29. ö©ßø©¯õÚ xÁUQ°ß ªß Áøµ£h® Áøµ¢x, Auß |ßø©PÒ H÷uÝ®
CµsiøÚz u¸P.
Draw the block diagram of Soft starter and give any two advantages.

30. PuÄ uPmiß £h® Áøµ¢x, Auß ‰»® EÀø» PhzvPÎß PuÄ Gs Põq®
•øÓø¯ ÂÍUSP.
Draw the diagram of a Standard wire gauge plate and explain how to find the gauge number
of a conductor.

31. £À÷ÁÖ Jΰ¯À ö£õ¸mPÒ ©ØÖ® AÁØÔß £¯ß£õkPøÍ AmhÁøn¨&
£kzxP.
Tabulate the various optical materials and their applications.

7 7482

32. ªßÚÀ uõ[Q°ß |ßø©PÒ ©ØÖ® wø©PøÍ GÊxP.
Write the advantages and disadvantages of lightning arrester.

33. AoÀTk _Ǽ°ß Aø©¨ø£ ÂÁ›UPÄ®.
Explain the construction of Squirrel cage rotor.

34. ªß C¯UQ°ß ÁøP¨£õkPøÍz u¸P.
Give the classifications of electrical drive.

35. ÷|ºvø\ Tmk ªß÷Úõi £ØÔ ÂÁ›UPÄ®.
Explain the DC compound motor.

£S-v & IV / PART - IV
SÔ¨¦ : AøÚz-x ÂÚõU-P-ÐU-S® Âøh-¯-ÎU-P-Ä®. ÷uøÁ¯õÚ Ch[PÎÀ £h®
Áøµ¯Ä®. 2x10=20
Note : Answer all the questions. Draw diagrams wherever neccessary.

36. (A) £À÷ÁÖ ÁøP¯õÚ ªßP®£[PÎß £h® Áøµ¢x ÂÁ›UPÄ®.
AÀ-»-x
(B) ²ÛÁº\À ÷©õmhõº £h® Áøµ¢x ÂÁ›UPÄ®.

(a) Explain with a neat sketch about the types of electric poles.
OR
(b) Explain with neat sketch about Universal Motor.

37. (A) 2 x¸Á®, 6 £ÒÍ[PÒ ©ØÖ® 6 vø\©õØÔ £SvPÒ öPõsh ÷|ºvø\
C¯¢vµzvØS JØøÓ¨£õøu Cµmøh AkUS ©i¨¦ ÁøP EÀø»
Áøµ£h® ÁøµP. öuõkÂPÎß Aø©Âhzøu²® SÔUPÄ®.
AÀ-»-x
(B) ‰ßÖ •øÚ xÁUQ°ß Aø©¨¦ ©ØÖ® ö\¯À£õmøh £hzxhß
ÂÁ›UPÄ®.
(a) Draw the double layer simplex lap winding diagram for a DC machine having 2 poles,
6 slots and 6 commutator segments. Also mention the position of brush.
OR
(b) Explain the construction and operation of three point starter with a neat sketch.

- o O o --
[ v¸¨¦P / Turn over

No. of Printed Pages : 7
7502(A)
!7502ABasicElectEnginee! £vÄ Gs
Register Number

Part III — Vocational Subjects
Ai¨£øh ªß ö£õÔ°¯À & P¸zv¯À
BASIC ELECTRICAL ENGINEERING - THEORY
( uªÌ ©ØÖ® B[Q» ÁÈ / Tamil & English Version )

Põ» AÍÄ : 3.00 ©o ÷|µ® ] [ ö©õzu ©v¨ö£sPÒ : 90
Time Allowed : 3.00 Hours ] [ Maximum Marks : 90

AÔÄøµPÒ : (1) AøÚzx ÂÚõUPЮ \›¯õP £vÁõQ EÒÍuõ GߣuøÚ \›£õºzxU
öPõÒÍÄ®. Aa_¨£v¨¤À SøÓ°¸¨¤ß AøÓU PsPõo¨£õÍ›h®
EhÚi¯õPz öu›ÂUPÄ®.
(2) }»® AÀ»x P¸¨¦ ø©°øÚ ©mk÷© GÊxÁuØS®
AiU÷PõikÁuØS® £¯ß£kzu ÷Ásk®. £h[PÒ ÁøµÁuØS
ö£ß]À £¯ß£kzuÄ®.
Instructions : (1) Check the question paper for fairness of printing. If there is any lack of fairness,
inform the Hall Supervisor immediately.
(2) Use Blue or Black ink to write and underline and pencil to draw diagrams.

£Sv & I / PART - I

SÔ¨¦ : (i) AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 15x1=15

(ii) öPõkUP¨£mkÒÍ |õßS ©õØÖ ÂøhPÎÀ ªPÄ® Hئøh¯
Âøhø¯z ÷uº¢öukzxU SÔ±mkhß Âøh°øÚ²® ÷\ºzx
GÊuÄ®.
Note : (i) Answer all the questions.

(ii) Choose the most appropriate answer from the given four alternatives and write
the option code and the corresponding answer.

[ v¸¨¦P / Turn over

7502(A) 2

1. ÷\õi¯® B ÂÍUS J롧 {Ó©õÚx :
(A) }»® P»¢u £aø\ (B) ]Á¨¦
(C) ©g\Ò (D) £aø\
The colour of sodium vapour discharge lamp is :
(a) Bluish Green (b) Red
(c) Yellow (d) Green

2. vs©U ÷Põnzvß A»S :
(A) ìi÷µi¯ßPÒ (B) ÷µi¯ßPÒ
(C) ìi÷µi¯ßPÒ/«mhº (D) ÷µi¯ßPÒ/«mhº
A solid angle is expressed in terms of :
(a) Steredian (b) Radians
(c) Steredian/Meter (d) Radians/Meter

3. Aø» Gʨ¤ öuõÈÀ~m£® £¯ß£kzu¨£k® \»øÁ C¯¢vµ® :
(A) ÷©Ø¦Ó xo ö\¾zx® ÁøP
(B) SøÓ uõÛ¯[Q
(C) •ß¦Ó® xo ö\¾zx® ÁøP
(D) •Ê uõÛ¯[Q
Name the washing machine which uses wave up technique.
(a) Top load washing machine
(b) Semi automatic
(c) Front load washing machine
(d) Automatic

4. AÔSÔ ÂÍUS Gߣx __________ BS®.
(A) SÇÀ ÂÍUS (B) öÁs_hº ÂÍUS
(C) øP¯hUP ªÎ¸® ÂÍUS (D) Jκ •øÚ ÂÍUS
__________ is used in indicating lamp.
(a) Tube light (b) Incandescent lamp
(c) Compact fluorescent lamp (d) Light Emitting Diode lamp

5. ªß AÚÀ öµõmi Áõmk°À J÷µ \©¯zvÀ GzuøÚ öµõmiz xskPÒ
Áõmh¨£kQÓx ?
(A) 4 (B) 2 (C) 5 (D) 3
How many Bread slices are toasted in a Bread Toaster simultaneously ?
(a) 4 (b) 2 (c) 5 (d) 3

3 7502(A)

6. ªßysi BØÓÀ ©õØÔ __________ AÍÄPøÍ AÍÂh¨ £¯ß£kQßÓx.
(A) ÷|›¯À ©ØÖ® _Ǿ® Ch¨ö£¯ºa]
(B) ÷|›¯À Ch¨ö£¯ºa]
(C) AÊzu®
(D) _Ǿ® Ch¨ö£¯ºa]
Inductive Transducers are used for the measurement of __________.
(a) Linear and Rotary displacement
(b) Linear displacement
(c) Pressure
(d) Rotary displacement

7. PõØÖ CøhöÁÎø¯ AÍÂk® P¸Â°ß ö£¯º :
(A) ö©Pº (B) L¥»º ÷Pä
(C) ªßÚÊzu AÍ (D) uõ[Q Cʨ£õß
Which instrument is used to measure the air gap ?
(a) Megger (b) Feeler gauge
(c) Voltmeter (d) Bearing puller

8. •Ê _¸Îøhz yµ EÀø»°À J¸ _¸Îß C¸ £UP[PÐUS Cøh÷¯ EÒÍ
ªßÛ¯À ÷Põn® :
(A) 1808 (B) 608 (C) 3608 (D) 1208
In full pitched winding, the electrical degree between two coil sides of a coil is :
(a) 1808 (b) 608 (c) 3608 (d) 1208

9. J¸ ªßPõ¨¦ AÍÄ (megger) Aͨ£x :
(A) AvP ©v¨¦øh¯ ªßuøh ©ØÖ® ªßPõ¨¦ uøhø¯
(B) SøÓ¢u ©v¨¦øh¯ ªßuøhø¯
(C) ªßvÓß ©v¨¦ ©mk®
(D) |kzuµ ©v¨¦øh¯ ªßuøhø¯
A megger is used for the measurement of :
(a) High valued resistances, particularly insulation resistance
(b) Low valued resistances
(c) Power only
(d) Medium valued resistances

[ v¸¨¦P / Turn over

7502(A) 4

10. v›¦ AÍÄ©õÛ ‰»® G¢u AÍøÁ AÍUP»õ® ?
(A) uPÄ (B) ªßuøh
(C) v›¦ ©ØÖ® uPÄ (D) v›¦
Which parameter is measured from strain gauge meter ?
(a) Stress (b) Resistance
(c) Strain and Stress (d) Strain

11. ‰ßÖ •øÚ xÁUQPÎÀ EÒÍ •øÚPÒ :
(A) ªßÚP®, ¦»a_¸Ò, ªßuøh
(B) ø»ß, ªßÚP®, ¦»a_¸Ò
(C) ªßuøh, ø»ß, ªßÚP®
(D) ø»ß, ªßuøh, ¦»a_¸Ò
The terminal of the three point starter is :
(a) Armature, Field coil, Resistance
(b) Line, Armature, Field coil
(c) Resistance, Line, Armature
(d) Line, Resistance, Field coil

12. G¢u ÁøP xÁUQ°À, xÁUPzvÀ GkzxU öPõÒЮ ªß÷Úõmh©õÚx ‰ßÔÀ
J¸ £[PõP SøÓUP¨£kQÓx ?
(A) _Ǽ ªßuøh xÁUQ (B) øhµUm&Bß&ø»ß xÁUQ
(C) Bm÷hõ ªß©õØÔ xÁUQ (D) ìhõº öhÀhõ xÁUQ
In which starter, the starting current is reduced to one-third value ?
(a) Rotor resistance starter (b) Direct-on-line starter
(c) Auto transformer starter (d) Star delta starter

13. ÷|ºzvø\ Aø» ÁøP EÀø»PÎÀ Cøn¨ £õøuPÎß GsoUøP :
(A) P/2 (B) P (C) 2 (D) 2P
The number of parallel paths of a D.C. wave winding is :
(a) P/2 (b) P (c) 2 (d) 2P

14. J¸ £À÷|õUS AÍÄ©õÛ __________ GÚ AøÇUP¨£kQÓx.
(A) B÷Áõ (AVO) «mhº (B) vÓÚÍÂ
(C) BØÓÀ ©õÛ (D) hõ[ öhìhº
Multi meter is called as :
(a) AVO meter (b) Watt meter
(c) Energy meter (d) Tong tester

5 7502(A)

15. uÛ ªßÛ¯UQPÒ __________ Ch[PÎÀ ö£›x® £¯ß£kQÓx.
(A) ªß £Ð yUQ (B) PoÛPÒ
(C) öám £®¨ (D) öÁØÔhz y´ø©¯õUQ
The individual drive is used in __________.
(a) Cranes (b) Computers
(c) Jet pump (d) Vacuum cleaner

£S-v & II / PART - II
SÔ¨¦ : GøÁ÷¯Ý® £zx ÂÚõUPÐUS _¸UP©õP Âøh¯ÎUPÄ®. ÂÚõ Gs
28 &US Pmhõ¯©õP Âøh¯ÎzuÀ ÷Ásk®. 10x3=30
Note : Answer any ten questions briefly. Question No. 28 is compulsory.

16. ªß EØ£zv {ø»¯[PÒ ]»ÁØøÓ TÖP.
State some electrical power generating stations.

17. Tö\õÎ GßÓõÀ GßÚ ?
What is glare ?

18. ªß ÷u´¨¦¨ ö£mi°ß ÁøPPøÍU TÖP.
State the types of Electric Iron boxes.

19. Tøµ ªß Â]Ô°ß •UQ¯ £õP[PÒ ¯õøÁ ?
What are the important parts of a ceiling fan ?

20. ªß xo öÁШ£õÛÀ uspº Hß `hõUP¨£kQÓx ?
Why hot water is used in the washing machine ?

21. ÷ÁPU Pmk¨£õmk •øÓPÒ ¯õøÁ ?
What are the speed control methods ?

22. J¸ ªß _ØÔÀ ªß÷Úõmh©õÛ ©ØÖ® ªßÚÊzu©õÛø¯ GÆÁõÖ
Cøn¨£õ´ ?
How will you connect an Ammeter and a Voltmeter in an electric circuit ?

23. Gso»UPªÀ»õ ©ØÖ® Gso»UP BØÓÀ ©õØÔPÒ £ØÔ ]Ö SÔ¨¦ ÁøµP.
Write short notes on analog and digital transducers.

[ v¸¨¦P / Turn over

7502(A) 6

24. ‰ßÖ •øÚ ©ØÖ® |õßS •øÚ xÁUQPÐUS Cøh÷¯ EÒÍ ÷ÁÖ£õkPøÍ
TÖP.
State the difference between three point starter and four point starter.

25. _¸Îøhz yµU Põµoø¯ Áøµ¯ÖUPÄ®.
Define pitch factor.

26. \© Gøh¨ £QºÄ ö\´¯ ÷Ási¯ AÁ]¯® GßÚ ?
What is the necessity of balancing ?

27. ußø©¯ EÀø» GßÓõÀ GßÚ ?
What is concentric winding ?

28. ªß÷uUQ BØÓÀ ©õØÔ°ß |ßø©PÒ ¯õøÁ ?
What are the advantages of capacitive transducers ?

£S-v & III / PART - III
SÔ¨¦ : GøÁ÷¯Ý® I¢x ÂÚõUPÐUS ©mk® Âøh¯ÎUPÄ®. ÂÚõGs
35&US Pmhõ¯©õP Âøh¯ÎUPÄ®. 5x5=25
Note : Answer any five questions. Question No. 35 is compulsory.

29. §mk ÁøP ªßPõ¨£õÛß £h® Áøµ¢x £õP[PøÍU SÔUPÄ®.
Draw a neat sketch of shackle type Insulator and mention its parts.

30. AÊzu ÁøP }º `÷hØÖ® P»ß £ØÔ ÂÍUSP.
Explain the pressure type Geyser.

31. Tøµ ªßÂ]ÔUS®, öÁÎ÷¯ØÖ® ªßÂ]ÔUS® EÒÍ ÷ÁÖ£õk TÖP.
What are the differences between the ceiling fan and the exhaust fan.

32. hõ[ öhìhº Aø©¨¦ ©ØÖ® ö\¯À£kuø» £hzxhß ÂÍUSP.
Describe with a neat sketch the construction and working principle of tong tester.

33. |õßS •øÚ xÁUQ°ß £hzøu ÁøµP.
Draw the circuit diagram of four point starter.

7 7502(A)

34. E¸Ò Aøh E¸ª°ß Aø©¨¦ ©ØÖ® ö\¯À£k® Âu® £ØÔ GÊxP.
Write the construction and working principle of Growler.

35. ÁÇ[QPÎß ÁøPPøÍ GÊxP.
Write down the types of Distributors.

£S-v & IV / PART - IV
SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. ÷uøÁ¯õÚ Ch[PÎÀ £h®
ÁøµP. 2x10=20
Note : Answer all the following questions. Draw diagrams wherever necessary.

36. (A) £À÷ÁÖ ÁøP¯õÚ ªßP®£[PÎß £h® Áøµ¢x ÂÁ›UPÄ®.
AÀ-»-x
(B) ÷©Ø¦Óz vÓ¨¦ÒÍ \»øÁ C¯¢vµzvß Aø©¨¦, ö\¯À£k® Âuzøu¨
£hzxhß ÂÁ›UPÄ®.
(a) Explain with a neat sketch the various types of electrical poles.
OR
(b) Explain the construction and working principle of top loading washing machine with
a neat sketch.

37. (A) ªßPõ¨¦ AÍ塧 Pmhø©¨ø£²®, ö\¯À£k® Âuzøu²® uUP
Áøµ£hzxhß ÂÁ›UPÄ®.
AÀ-»-x
(B) 2 x¸Á®, 6 £ÒÍ[PÒ ©ØÖ® 6 vø\ ©õØÔ £SvPÒ öPõsh ÷|ºvø\
C¯¢vµzvØS JØøÓ¨ £õøu Cµmøh AkUS ©i¨¦ ÁøP EÀø»
Áøµ£h® ÁøµP. öuõkÂPÎß Aø©Âhzøu²® SÔUPÄ®.
(a) Explain with the help of a neat sketch the construction and working of Megger.
OR
(b) Draw the double layer simplex lap winding diagram for a D.C. machine having
2 poles, 6 slots and 6 commutator segments. Also mention the brush position.
-

-oOo-

[ v¸¨¦P / Turn over

QUESTION PAPERS
GET PREVIOUS YEAR QUESTION PAPERS FOR ALL CLASSES FOR CBSE, ISCSE, ISC AND ALL ALL
STATE BOARDS HERE AT

Andhra Pradesh Board Question Papers
BOARD
WISE Assam Board Question Papers
Bihar Board Question Papers
Chhattisgarh Board Question Papers
Goa Board Question Papers
Gujarat Board Question Papers
Haryana Board Question Papers
Himachal Pradesh Board Question Papers
J&K State Board Question Papers
Jharkhand Board Question Papers
Karnataka Board Question Papers
Kerala Board Question Papers
Madhya Pradesh Board Question Papers
Maharashtra State Board Question Papers
Manipur Board Question Papers
Meghalaya Board Question Papers
Mizoram Board Question Papers
Nagaland Board Question Papers
Orissa Board Question Papers
Punjab Board Question Papers
Rajasthan Board Question Papers
Tamil Nadu Board Question Papers
Telangana State Board Question Papers
Tripura Board Question Papers
Uttarakhand Board Question Papers
Uttar Pradesh (UP) Board Question Papers
West Bengal (WB) Board Question Papers