TN 11th Question Paper 2024 Basic Mechanical Engineering

TN PUBLIC EXAM

QUESTION
PAPER
2024

No. of Printed Pages : 8
7681
!7681IstYearBasicMechanicalEngineering! £vÄ Gs
Register Number

Part III — Vocational Subjects
Ai¨£øh C¯¢vµÂ¯À - -P¸zv¯À
BASIC MECHANICAL 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¨£mh |õßS ©õØÖ ÂøhPÎÀ ªPÄ® Hئøh¯ Âøhø¯
÷uº¢öukzx 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

7681 2

1. öÁºÛ¯º Põ¼£›ß «a]ØÓÍÄ :
(A) 0.001 ª.« (B) 0.01 ª.« (C) 0.1 ª.« (-D) 0.02 ª.«
The least count of the Vernier Caliper is :
(a) 0.001 mm (b) 0.01 mm (c) 0.1 mm (d) 0.02 mm

2. Buõµ AÍÂØS®, C¸US® AÍÂØS® EÒÍ Âzv¯õ\® __________ GÚ¨£k®.
(A) HØP¨£k® AÍÄ ÷ÁÖ£õk (B) AvP£m\ GÀø»
(C) SøÓ¢u£m\ GÀø» (-D) ©õÖ£õk
The algebraic difference between the actual size and its corresponding basic size is called :
(a) Tolerance (b) Maximum limit
(c) Minimum limit (d) Deviation

3. •uÀ Eu Gߣx :
(A) öuõÈØ\õø»°À £zx HØ£mhõÀ öPõkUP¨£k® EhÚi ]Qaø\ •øÓ
(B) öuõÈØ\õø»°À EØ£zv ö\´²® •øÓ
(C) C¯¢vµ £õxPõ¨¦
(-D) £o¯õͺ £õxPõ¨¦ •øÓ
First aid is :
(a) Immediate treatment given at the spot of accidents
(b) Manufacturing process
(c) Safety of machines
(d) Safety regarding operators

4. J¸ ö£õ¸Îß }Í, AP», E¯µ AÍÄPÒ öu›²©õÖ 1208 ÷Põn CøhöÁΰÀ
ö£õ¸Îß •Êz ÷uõØÓ® öu›²©õÖ Áøµ²® •øÓ CÆÁõÖ AøÇUP¨£kQÓx.
(A) •uÀ ÷Põn ¦öµõöáU\ß (B) Bºz÷uõQµõ¤U ¦öµõöáU\ß
(C) ‰ßÓõ® ÷Põn ¦öµõöáU\ß (-D) I÷\õö©m›U ¦öµõöáU\ß
The method of drawing length, breadth and height of an object on planes 1208 apart is
known as :
(a) First angle Projection (b) Orthographic Projection
(c) Third angle Projection (d) Isometric Projection

3 7681

5. 297×210 AÍÄÒÍ Áøµ£hzuõÎß ö£¯º :
(A) A2 (B) A0 (C) A1 (-D) A4
Drawing sheets with dimensions of 297×210 is designated as :
(a) A2 (b) A0 (c) A1 (d) A4

6. E[PÐøh¯ Áøµu¼À Pøh]¯õP ö\´¯¨£mh ö\¯ø» uºUP ¤ßÁ¸® G¢u
SÖUSÁÈ \õÂa÷\º©õÚ® £¯ß£kQÓx ?
(A) Ctrl + G (B) Ctrl + Shift + V
(C) Ctrl + Z (-D) Ctrl + C
Which shortcut key combination can be used to undo the last action in your drawing ?
(a) Ctrl + G (b) Ctrl + Shift + V
(c) Ctrl + Z (d) Ctrl + C

7. 308 ÷Põn AÍÄ öPõsh ¦ÒÎ Szx® P®¤°ß ö£¯º :
(A) Tº•øÚ öPõsh ¦ÒÎ Szx® P®¤
(B) ø©¯¨¦ÒÎ Szx® S®¤
(C) BǨ¦ÒÎ Szx® P®¤
(-D) AÍÄ ¦ÒÎ Szx® P®¤
Punch with an angle of 308 is known as :
(a) Pin Punch
(b) Centre Punch
(c) Prick Punch
(d) Dot Punch

8. uø»ø© ©õv› ÁiÁ® ö\´¯¨ £¯ß£k® ö£õ¸Ò :
(A) ö©ÊS (B) ©µ® (C) ¤ÍõìiU (-D) E÷»õP®
The material used for making master pattern is :
(a) Wax (b) Wood (c) Plastic (d) Metal

9. _zu©õÚ C¸®¤ß Aq Gs :
(A) 36 (B) 16 (C) 46 (-D) 26
The atomic number of pure iron is :
(a) 36 (b) 16 (c) 46 (d) 26

[ v¸¨¦P / Turn over

7681 4

10. «Ò ußø© Gߣx :
(A) ÷Áv°¯À £s¦ (B) C¯Ø¤¯À £s¦
(C) C¯¢vµÂ¯À £s¦ (-D) ªßÛ¯À £s¦
Elastic property is :
(a) Chemical property (b) Physical property
(c) Mechanical property (d) Electrical property

11. ö©m›U ©øµ°ß ÷Põn® :
(A) 608 (B) 558 (C) 308 (-D) 478
The angle of metric thread is :
(a) 608 (b) 558 (c) 308 (d) 478

12. SøÓ¢u CøhöÁÎ EÒÍ _Ǿ® \Uvø¯ Phzu¨ £¯ß£kÁx :
(A) \[Q¼ •øÓ (B) £møh •øÓ
(C) QÍma •øÓ (-D) £À¼øn •øÓ
__________ is used to transmit rotary power in limited space.
(a) Chain drive (b) Belt drive
(c) Clutch drive (d) Gear drive

13. ªßuøh°ß A»S :
(A) Áõm ©o (B) «mhº (C) T¾® (-D) K®
The unit of resistance is :
(a) Watt-hour (b) Meter (c) Coulomb (d) Ohm

14. 5 HP •uÀ 15 HP Áøµ EÒÍ ªß÷©õmhõ¸US¨ £¯ß£k® xÁUQ :
(A) Bm÷hõ iµõßì£õº©º xÁUQ
(B) ìhõº öhÀhõ xÁUQ
(C) ]¼¨›[ CshU\ß ÷©õmhõº xÁUQ
(-D) D.O.L. xÁUQ
Starter used for motors of 5 HP to 15 HP is __________.
(a) Autotransformer starter
(b) Star-delta starter
(c) Slip ring induction motor starter
(d) Direct-on-line starter

5 7681

15. uØPõ¼P Cøn¨¤ØS GkzxUPõmk :
(A) \õÀh›[ Cøn¨¦ (B) öÁÀi[ Cøn¨¦
(C) ÷£õÀmkPÒ (-D) Søh¯õo Cøn¨¦
An example for temporary fastener is :
(a) Soldering joint (b) Welded joint
(c) Bolts (d) Riveted joint

£Sv & II / PART - II
SÔ¨¦ : H÷uÝ® £zx ÂÚõU- P - Ð US Âøh- ¯ - Î U- P - Ä ®. ÂÚõ Gs 28 &ØS
Pm-hõ-¯-©õP Âøh-¯-ÎU-P- ÷Ásk®. 10x3=30
Note : Answer any ten questions. Question No. 28 is compulsory.

16. C¯¢vµ¨ £o¯õͺ GߣÁº ¯õº ?
Who is machinist ?

17. Áøµ£hzvß AÍÄ ÂQu® GßÓõÀ GßÚ ?
What is a scale of drawing ?

18. ¤ßÁ¸ÁÚÁØøÓ £ØÔ SÔ¨¦ ÁøµP.
(A) ³ Q³¨ (Põs \xµ®)
(B) ÁÈPõmk® £møh
Write a note on the following.
(a) View cube
(b) Navigation bar

19. BIS &ß £oPÒ ¯õøÁ ?
What are the functions of BIS ?

20. Aa_ ©soß ÁøPPÒ ¯õøÁ ?
What are the types of moulding sand ?

[ v¸¨¦P / Turn over

7681 6

21. ªß ÷©õmhõ›À ÷µõmhõº GßÓõÀ GßÚ ?
What is the rotor in electric motor ?

22. ÷h¨ (Tap) GßÓõÀ GßÚ ?
What is a tap ?

23. ø©U÷µõ«mh›À SøÓ¤øÇ GßÓõÀ GßÚ ?
What is negative error of micrometer ?

24. ©øµ°øh yµ® GßÓõÀ GßÚ ?
What is the pitch of the thread ?

25. \›Ä¨ £À¼øn GßÓõÀ GßÚ ?
What is a bevel gear ?

26. ªß÷Úõmh® GßÓõÀ GßÚ ?
What is electric current ?

27. Põº£ß GLQß ‰ßÖ ÁøPPÒ ¯õøÁ ?
What are the three types of carbon steel ?

28. AUª ©øµ°ß £¯ßPÒ ¯õøÁ ?
What are the uses of acme thread ?

7 7681

£Sv & III / PART - III
SÔ¨¦ : H÷uÝ® I¢x ÂÚõU-P-ÐUS ©mk® Âøh-¯-ÎU-P-Ä®. ÂÚõ Gs 35 &ØS
Pm-hõ-¯® Âøh-¯-ÎU-P-Ä®. 5x5=25
Note : Answer any five questions. Question No. 35 is compulsory.

29. £zx HØ£kÁuØPõÚ •UQ¯ Põµn[PÒ ¯õøÁ ?
What are the main causes for accident ?

30. HØP¨£k® AÍÄ GßÓõÀ GßÚ ? AÁØÔß ÁøPPøÍ ÂÍUSP.
What is the tolerance ? Explain its types.

31. Aa_U P¸ÂPøÍ Á›ø\¨£kzxP.
List out the moulding tools.

32. öÁmkÎ GLQß ÁøPPøÍU TÔ ÂÍUSP.
State and explain the different kinds of tool steel.

33. BU\õ ¤÷Ík EøhÁuØPõÚ Põµn[PøͲ® ÷u´ÁuØPõÚ Põµn[PøͲ®
TÖP.
State the reasons for the breakage and blunting of hacksawblade.

34. Gί £À¼øn öuõhº £h® Áøµ¢x ÂÍUSP.
Draw the simple gear train and explain.

35. RÌUPõq® ©øµ°ß £õP[PøÍ ÂÍUSP.
(A) ©øµ°ß BÇ®
(B) Ea\ Âmh®
(C) ½m
(D) ©øµ°ß Ea]
(E) Ai¨£ÒÍ®
Explain the following thread parts :
(a) Depth of Thread
(b) Major Diameter
(c) Lead
(d) Crest
(e) Roots

[ v¸¨¦P / Turn over

7681 8

£Sv & IV / PART - IV
SÔ¨¦ : ›ÁõÚ Âøh-¯-ÎU-P-Ä®. 2x10=20
Note : Answer the following questions in details.

36. (A) Bm÷hõ÷PiÀ £¯ß£kzx® •UQ¯©õÚ PmhøÍPøÍ ÂÍUSP.
AÀ-»-x
(B) öuõhº ªß_ØÖ ©ØÖ® £UP ªß_ØÖ £h® Áøµ¢x ÂÍUSP.
(a) Explain the important Commands used in AutoCAD.
OR
(b) Explain the series circuit and parallel circuit with neat sketch.

37. (A) Aµ[PÎß ÁøPPøͨ £hzxhß ÂÍUSP.
AÀ-»-x
(B) (i) Áøµ£hzvÀ £¯ß£kzu¨£k® £À÷ÁÖ ÷PõkPøÍ Áøµ¢x AÁØÔß
£¯ß£õkPøÍ GÊxP.
(ii) PÈÄ ÷\ª¨¦ öPõÒP»ßPÎß öÁÆ÷ÁÖ Ásn[PøÍU SÔ¨¤mk
Auß E£÷¯õPzøuU TÖP.
(a) Explain the types of files with diagram.
OR
(b) (i) Draw the different types of lines and specify their applications.
(ii) List the different coloured bins for collection of waste and their uses.

-o0o-

No. of Printed Pages : 7
7701(A)
!7701AIstYearBasicMechanicalEngineering! £vÄ Gs
Register Number

Part III — Vocational Subjects
Ai¨£øh C¯¢vµÂ¯À - -P¸zv¯À
BASIC MECHANICAL 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

7701(A) 2

1. ÷£UQ[ xsk G¢u \©¯zvÀ £¯ß£kzu ÷Ásk® ?
(A) C¯¢vµ[PøÍ Ch® ©õØÖ® ÷£õx
(B) C¯¢vµ[PÒ C¯[S® ÷£õx
(C) C¯¢vµ £õP[PÒ ö£õ¸zu¨£k® ÷£õx
(D) C¯¢vµ[PÒ {Özu¨£k® ÷£õx
The packing pieces are used at the time of :
(a) Lifting or shifting machine tools
(b) Running the machine
(c) Fitting the machine tools
(d) Stopping the machine

2. V&ÁiÁ uõøh öPõsh ¤i¨£õß :
(A) ø£¨ øÁì (B) ö»U øÁì
(C) ¤ß øÁì (D) ÷ísm øÁì
‘V’ shaped jaws vice is __________.
(a) Pipe vice (b) Leg vice
(c) Pin vice (d) Hand vice

3. ÁøÍÁõÚ £o¨ö£õ¸mPøÍ AÍUP EuÄ® AÍÄ÷PõÀ :
(A) ©hUQ øÁUS® AÍÄ÷PõÀ
(B) SÖP»õÚ AÍÄ÷PõÀ
(C) ÁøͲ® ußø© öPõsh AÍÄ÷PõÀ
(D) öPõUQ öPõsh AÍÄ÷PõÀ
Measurements on cylindrical surface are done with :
(a) Folding scale
(b) Narrow scale
(c) Flexible scale
(d) Hook scale

4. ÷Põn AÍÄPøÍ 5 {ªh ~qUPzvØS AÍUPUTi¯ P¸Â :
(A) Põ®¤÷Úåß ö\m (B) ø\ߣõº
(C) £õøP©õÛ (D) öÁºÛ¯º ö£ÁÀ ¦µõmµõUhº
Angular measurements are done to an accuracy of 5 minutes with :
(a) Combination set (b) Sine Bar
(c) Protractor (d) Vernier Bevel Protractor

3 7701(A)

5. Áõº¨¤¸®¤À EÒÍ Põº£Ûß AÍÄ :
(A) 2% •uÀ 4.5% Áøµ (B) 2% •uÀ 3% Áøµ
(C) 2% •uÀ 5% Áøµ (D) 2% •uÀ 4% Áøµ
The carbon content in Cast Iron ranges from :
(a) 2% to 4.5% (b) 2% to 3%
(c) 2% to 5% (d) 2% to 4%

6. AÇS ö£õ¸mPÒ u¯õ›UP £¯ß£k® E÷»õP® Gx ?
(A) D¯® (B) Põ¨£º (C) xzu|õP® (D) ¤zuøÍ
Which metal is used to make decoration materials ?
(a) Lead (b) Copper (c) Zinc (d) Brass

7. ø|møµi[ ö\´²® ö£õÊx, GLS £õPzvß ÷©Ø£µ¨¤À ÷\ºUP¨£kÁx :
(A) BUêáß (B) Põº£ß (C) øímµáß (D) ø|mµáß
Which one is added to the surface of the steel, while nitriding ?
(a) Oxygen (b) Carbon (c) Hydrogen (d) Nitrogen

8. }sh |õmPÒ £¯ß£k® ©õv› ÁiÁ® u¯õ›UP ÷uøÁ¯õÚ ö£õ¸Ò Gx ?
(A) ö©ÊS (B) ©µ®
(C) Áõº¨¦ (D) öuº÷©õ ö\mi[ ¤ÍõìiU
Which material is used to make a long life pattern ?
(a) Wax (b) Wood
(c) Casting (d) Thermosetting plastic

9. E¸øÍ ÁiÁ¨ £o¨ö£õ¸øÍ ¤iUP EuÄ® âU :
(A) h¯õ«mhº âU (B) £õUì âU
(C) B[QÒ âU (D) ÷\ÚÀ âU
The jig used to hold cylindrical work piece is :
(a) Diameter jig (b) Box jig
(c) Angle jig (d) Channel jig

[ v¸¨¦P / Turn over

7701(A) 4

10. Áõå›ß AÍÄ ö£õxÁõP __________ IU öPõsk SÔ¨¤h¨£kQÓx.
(A) ui©ß (B) öÁÎ Âmh®
(C) \µõ\› Âmh® (D) EÒ Âmh®
The washer is generally specified by its __________.
(a) Thickness (b) Outer diameter
(c) Mean diameter (d) Hole diameter

11. Gߣx Buõµ AÍÂØS®, SøÓ¢u£m\ GÀø»US® EÒÍ
__________
Âzv¯õ\©õS®.
(A) HØP¨£k® AÍÄ (B) ö£¸© ©õÖ£õk
(C) C¸US® AÍÄ (D) SÖ© ©õÖ£õk
__________ is defined as the algebraic difference between the minimum limit of size and the
corresponding basic size.
(a) Tolerance (b) Upper Deviation
(c) Actual size (d) Lower Deviation

12. £À¼øn°ß ÷ÁP® Põq® Áõ´¨£õk :
T1 N
(A) = 2 (B) D1N1=D2N2
T2 N1

N T−NA
(C) RPM (D) × 100
NT
Velocity ratio of a gear drive is :
T1 N
(a) = 2 (b) D1N1=D2N2
T2 N1

N T−NA
(c) RPM (d) × 100
NT

13. ªß \Uvø¯ C¯¢vµ \Uv¯õP ©õØÖ® C¯¢vµ® :
(A) ìhõºmhº (B) öáÚ÷µmhº
(C) ªß©õØÔ (D) ªß ÷©õmhõº
The device is used to convert electrical energy into mechanical energy.
(a) Starter (b) Generator
(c) Transformer (d) Electric motor

5 7701(A)

14. ""AÔ¯À ÷©»õsø© ÷Põm£õk'' GßÓ ¦zuPzøu GÊv¯Áº :
(A) L£õµ÷h (B) ¤¯º öÁºÛ¯º
(C) öíßÔ L÷£¯õÀ (D) F.W. öh´»º
The book “The Principles of Scientific Management” was written by :
(a) Faraday (b) Pierre Vernier
(c) Henry Fayol (d) F.W. Taylor

15. £o©øÚ°À BU\õ ¤÷ÍhõÀ öÁmkuÀ, ÷u´zuÀ ©ØÖ® ö£õ¸zx® ÷Áø»PÒ
ö\´uÀ BQ¯ÁØÔØS BS® ö\»Ä :
(A) £o¯õͺ Fv¯® (B) Pa\õ¨ ö£õ¸mPÎß ö\»Ä
(C) {ºÁõP ö\»Ä (D) Á›a ö\»Ä
Charges for hacksaw cutting, filing, fitting and assembling in workshop are counted under
this head.
(a) Worker’s wages (b) Cost of raw material
(c) Administrative expenditure (d) Tax

£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 No. 28 is compulsory.

16. •uÀ Eu GßÓõÀ GßÚ ?
What is known as First Aid ?

17. "øh' GßÓõÀ GßÚ ? Auß C¸ ÁøPPøÍU TÖP.
What is Die ? State their two types.

18. ø©U÷µõ«mh›ß SøÓ¨ ¤øÇ GßÓõÀ GßÚ ?
What is negative error of a micrometer ?

19. Pa\õ¨ ö£õ¸mPÎß Âø» Gߣx ¯õx ?
What is the cost of raw material ?

20. C¸®¦ P»Áõu E÷»õP[PøÍ Á›ø\¨£kzxP.
List out the Non-Ferrous materials.

[ v¸¨¦P / Turn over

7701(A) 6

21. öÁ¨£¨£kzv Sn©õØÓ® ö\´²® •øÓPÒ ¯õøÁ ?
What are the methods of heat treatment ?

22. Aa_ ©soß ÁøPPÒ ¯õøÁ ?
What are the types of ‘Moulding Sand’ ?

23. âUQß £õP[PøÍ GÊxP.
Write the parts of Jig.

24. JßÖUöPõßÖ ö£õ¸zxuÀ GßÓõÀ GßÚ ?
What is interchangeability ?

25. umøh ©ØÖ® ]Ö£À¼øn GßÓõÀ GßÚ ?
What are Rack and Pinion Gears ?

26. ªß\õµ ÷©õmhõºPÎß ÁøPPøͨ £mi¯¼kP.
List out the types of electrical motors.

27. öuõÈØ\õø» ChAø©¨¦ £ØÔ }º AÔÁx ¯õx ?
What do you know about ‘Plant Location’ ?

28. AÍÂPÎß ‰ßÖ uµ[Pøͨ £mi¯¼kP.
List out the three grades of gauges.
£S-v & III / PART - III
SÔ¨¦ : GøÁ÷¯Ý® I¢x ÂÚõU-P-ÐUS Âøh-¯-ÎU-P-Ä®. ÂÚõ Gs 35 &US
Pm-hõ-¯-©õP Âøh-¯-ÎU-P-Ä®. 5x5=25
Note : Answer any five questions. Question No. 35 is compulsory.

29. øPUP¸ÂPÐUPõÚ £õxPõ¨¦ SÔ¨¦Pøͨ £mi¯¼kP.
List out the safety precautions regarding hand tools.

30. ö©m›U ø©U÷µõ«mh›À v®¤øÍ J¸ •Êa_ØÖ _ØÔÚõÀ, ì¤si»õÚx
0.5 ª.« yµ® |P¸®. v®¤ÎÀ ö©õzu® 50 ¤›ÄPÒ EÒÍÚ GÛÀ Auß ~qUP®
¯õx ?
In metric micrometer, if the thimble rotates one rotation, spindle moves 0.5 millimeter. The
thimble has 50 divisions totally. What is the least count of metric micrometer ?

7 7701(A)

31. öÁ¨£¨£kzv Sn©õØÓ® ö\´Ávß ÷|õUP[PÎÀ H÷uÝ® I¢vøÚ GÊxP.
Write any five points about the purpose of Heat Treatment.

32. ö\À¾® Áõ°À Aø©¨¤À EÒÍ £õP[PøÍ ÂÍUSP.
Explain the parts of the ‘Gating System’.

33. "¤÷Ím âU' £h® Áøµ¢x £õP[PøÍU SÔUPÄ®.
Draw the ‘Plate Jigs’ and indicate the parts.

34. uµUPmk¨£õk £ØÔ ÂÁ›UPÄ®.
Explain about ‘Quality Control’.

35. öuõhº ªß_ØÖ, £UP ªß_ØÖ £h® Áøµ¢x ÂÍUSP.
Explain series circuit, parallel circuit with neat sketch.

£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 diagram wherever necessary.

36. (A) GLQß ÁøPPøÍU TÔ ÂÍUSP.
AÀ-»-x
(B) ""÷£U Põº¦øµ]['' •øÓ £ØÔ £hzxhß ÂÍUSP.
(a) Explain the different types of steel.
OR
(b) Explain about the process of “Pack carburising” with neat diagram.

37. (A) ìS›À÷Pä CßhUåß ÷©õmhõ¸US®, ]¼¨›[ CßhUåß ÷©õmhõ¸US®
EÒÍ ÷ÁÖ£õkPÒ ¯õøÁ ?
AÀ-»-x
(B) SÖUS¨£møh •øÓ°øÚ¨ £hzxhß ÂÁ›UPÄ®.
(a) Differentiate between squirrel cage induction motor and a slip ring induction motor.
OR
(b) Draw and explain crossed belt drive.

-o0o-

[ v¸¨¦P / Turn over

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