TN 12th Question Paper 2024 Basic Mechanical Engineering

TN PUBLIC EXAM

QUESTION
PAPER
2024

No. of Printed Pages : 8
7481
!7481BasicMechaEnginee! £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_¨£vÂÀ 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

7481 2

1. £ÒÍ® ©ØÖ® \õ¨ £ÒÍ® öÁmh £¯ß£k® öÁmkU P¸Â :
(A) ÷Põn ªÀ¼[ öÁmkU P¸Â
(B) öÁmiz xshõUS® öÁmkU P¸Â
(C) ÁiÁ ªÀ¼[ öÁmkU P¸Â
(D) •øÚ ªÀ¼[ öÁmkU P¸Â
The cutter used for cutting grooves and key ways :
(a) Angle Milling cutters
(b) Slitting saw
(c) Form cutter
(d) End mill cutters

2. hµm ÷»z ©ØÖ® ÷P¨ìhß ÷»z Gߣx :
(A) ÷©øh ÁøP Pøh\À C¯¢vµ®
(B) uõÛ¯[Q Pøh\À C¯¢vµ®
(C) lÀ¹® Pøh\À C¯¢vµ®
(D) £Sv uõÛ¯[Q Pøh\À C¯¢vµ®
Turret and Capstan lathes are known as :
(a) bench lathe
(b) automatic lathes
(c) tool room lathe
(d) semi-automatic lathes

3. £møh, ÷£›[, \[Q¼ ÷£õßÓÁØøÓ¨ £µõ©›zuÀ :
(A) uk¨¦ £µõ©›¨¦ (B) vÚ¨ £µõ©›¨¦
(C) ö£¸® £Êx £µõ©›¨¦ (D) Áõµ¨ £µõ©›¨¦
Maintenance of belt, bearing and chain is :
(a) Preventive maintenance (b) Daily maintenance
(c) Corrective maintenance (d) Weekly maintenance

4. ""uõÛ¯[Q°¯¼ß u¢øu'' GßÓøÇUP¨£k£Áº ¯õº ?
(A) öP´ö\ß (B) {U÷Põ»õ öhì»õ
(C) {U÷PõÀ ö£Úº uõì (D) I\U A]÷©õÆ
Who is called the Father of Automation ?
(a) Kaizen (b) Nikola Tesla
(c) Nicole Benar Dass (d) Isaac Asimov

3 7481

5. IC Gߣuß Â›ÁõUP® :
(A) Internal Control (B) Information Control
(C) Integrated Circuits (D) Instruction Control
IC refers to :
(a) Internal Control (b) Information Control
(c) Integrated Circuits (d) Instruction Control

6. EÒ ©øµ°k® P¸Â°øÚ (Tap) £¯ß£kzv ©øµ°kÁuØPõÚ xøÍ°øÚ
PnUQkÁuØPõÚ `zvµ® :
(A) D=T−2d (B) D=T+2d (C) D=T÷2d (D) D=T×2d
The formula to calculate tap drill size is :
(a) D=T−2d (b) D=T+2d (c) D=T÷2d (d) D=T×2d

7. ö£õ¸zv Âøh ÷uºP :
(1) vµÁ¯À ÁøP (i) vª_ |P¸® Âuzøu¨ ö£õÖzx
(2) PÚ©õÚ ÷Áø»U÷PØÓ (ii) £o¨ö£õ¸øÍ öÁmk® Âuzøu¨ ö£õÖzx
ÁøP
(3) ö\[Szx ÁøP (iii) vªø\ |Pºzx® Âuzøu¨ ö£õÖzx
(4) •ß÷ÚõUQ öÁmk® •øÓ (iv) £o÷©øh Aø©¨ø£¨ ö£õÖzx
(A) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)
(B) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
(C) (1)-(iii), (2)-(ii), (3)-(i), (4)-(iv)
(D) (1)-(iv), (2)-(iii), (3)-(i), (4)-(ii)
Match the following :
(1) Hydraulic type (i) According to the position and travel of ram
(2) Heavy duty shaper type (ii) According to the type of cutting
(3) Vertical shaper type (iii) According to the type of driving mechanism
(4) Push cut shaper type (iv) According to the design of the work table
(a) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)
(b) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
(c) (1)-(iii), (2)-(ii), (3)-(i), (4)-(iv)
(d) (1)-(iv), (2)-(iii), (3)-(i), (4)-(ii)

8. ©Ûu C¯¢vµzvß Ai¨£øh öPõÒøPPøÍ ÁSzuÁº :
(A) áõºä öhÂÀ (B) A]÷©õÆ
(C) ÷áõ\¨ H[PÀ ö£ºöẠ(D) öíU÷hº
The basic principles of Robot is formed by :
(a) George Devil (b) Asimov
(c) Joseph Engel Berger (d) Hectare

[ v¸¨¦P / Turn over

7481 4

9. Bµ® ÁÈ |P¸® xøÍ°k® C¯¢vµzvøÚ¨ £¯ß£kzv HØ£kzx® xøÍ°ß
Âmh® :
(A) 50 ª.«&US ÷©À (B) 10 ª.«&US ÷©À
(C) 70 ª.«&US ÷©À (D) 12 ª.«&US ÷©À
The diameter of the hole that can be drilled by using radial drilling machine is :
(a) above 50 mm (b) above 10 mm
(c) above 70 mm (d) above 12 mm

10. £o÷©øh |P¸® yµzøuU Pmk¨£kzu EuÄ® £õP® :
(A) SÖUS |ÊÂ
(B) ÷\iÀ
(C) ö\[Szx Fmh ©øµz usk
(D) vø\ ©õØÔ
The distance travelled by the table is controlled by :
(a) Cross slide
(b) Saddle
(c) Vertical feed rod
(d) Trip dogs

11. ÷ÁP©õP v¸®£ ö\´²® C¯¢vµ ~m£zvß ‰»® •ßÝ®, ¤ßÝ® C¯[S®
£õP® :
(A) ÷\iÀ (B) £o÷©øh (C) SÖUS |Ê (D) vª_
The part involved in reciprocation by quick return mechanism is :
(a) Saddle (b) Table (c) Cross slide (d) Ram

12. ¤ÍõìiU {ø» öÁÀi[ Gߣx :
(A) E¸Q¯ öÁÀi[ (B) AÊzu öÁÀi[
(C) BºU öÁÀi[ (D) AÊzuªÀ»õ öÁÀi[
Plastic Welding is :
(a) Fusion Welding (b) Pressure Welding
(c) Arc Welding (d) Pressureless Welding

13. £À»õ°µUPnUPõÚ öÁmk•øÚPøÍU öPõsh öÁmkÎ :
(A) Aøµ¨¦a \UPµ® (B) Pøh\À öÁmkÎ
(C) ªÀ¼[ öÁmkÎ (D) xøÍ°k® öÁmkÎ
The cutting tool with several thousands of cutting edges is :
(a) Grinding wheel (b) Lathe cutting tool
(c) Milling cutter (d) Drilling cutter

5 7481

14. BºU öÁÀi[ ‰»® HØ£k® öÁ¨£zvß AÍÄ :
(A) 50008C - 60008C (B) 1008C - 1508C
(C) 1508C - 2008C (D) 508C - 1008C
The Heat generated during Arc welding is :
(a) 50008C - 60008C (b) 1008C - 1508C
(c) 1508C - 2008C (d) 508C - 1008C

15. DMAIC Gߣx :
(A) Design, Mould, Alter, Interact, Cold
(B) Define, Make, Act, Improve, Control
(C) Define, Mould, Analyse, Improve, Control
(D) Define, Measure, Analyse, Improve, Control
DMAIC means :
(a) Design, Mould, Alter, Interact, Cold
(b) Define, Make, Act, Improve, Control
(c) Define, Mould, Analyse, Improve, Control
(d) Define, Measure, Analyse, Improve, Control

£S-v & II / PART - II
SÔ¨¦ : H÷uÝ® £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. Pøh\À C¯¢vµzvÀ ÁÈ |hzx® ©øµ¯õo°ß £¯ß ¯õx ?
What is the use of Lead Screw in a lathe ?

17. £µõ©›zuÀ – Áøµ¯ÖUPÄ®.
Define “Maintenance”.

18. BºU öÁÀi[ ÁøPPÒ H÷uÝ® ‰ßÔøÚ GÊxP.
Mention any three types of Arc Welding.

19. xøÍ°k® C¯¢vµzvß öÁmk® ÷ÁP® Gߣøu Áøµ¯ÖUPÄ®.
Define “cutting speed“ of a drilling machine.

20. ªÀ¼[ C¯¢vµzvÀ Põö»m G¨ö£õÊx £¯ß£kzu¨£kQÓx ?
When will the collet be used in milling machine ?

[ v¸¨¦P / Turn over

7481 6

21. ¤i¨¦z uͺa] – Áøµ¯ÖUPÄ®.
Define “backlash”.

22. ÷\mh›[ HØ£kÁuØPõÚ Põµn[PÒ ¯õøÁ ?
What are the reasons for chattering ?

23. £o B´Ä – Áøµ¯ÖUPÄ®.
Define work study.

24. QÍõ¨£º £õU]ß £¯ß ¯õx ?
What is the use of a Clapper box ?

25. Gsq¸U Pmk¨£õk – Áøµ¯ÖUPÄ®.
Define “Numerical Control”.

26. uõÛ¯[Q°¯¼ß ÁøPPÒ ¯õøÁ ?
What are the different types of Automation ?

27. HÊ uµUPmk£õmkU P¸ÂPøͨ £mi¯¼kP.
List seven quality control tools.

28. Põº¦øµ][ wa_hº £ØÔ GÊxP.
Write about Carburizing Flame.

£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. SÔ¨¦ ÁøµP :
(A) vª]ß Aø\Ä }ÍzvøÚ ©õØÖ® Âu®
(B) vª]ß C¸¨¤h®
Write short notes on :
(a) Changing the stroke length of the Ram
(b) Position of the Ram

30. \õÀh›[, £h® Áøµ¢x ÂÍUSP.
Explain Soldering with diagram.

7 7481

31. QŸì ‰»® E¯ÂhÀ •øÓø¯ £h® Áøµ¢x ÂÍUSP.
Sketch and explain “Grease Lubrication”.

32. Pøh\À C¯¢vµzvÀ EÒÍ ÷P÷µâÀ Ah[Q²ÒÍ £õP[PÒ ¯õøÁ ? AÁØÔÀ
H÷uÝ® JßÔøÚ ÂÍUSP.
What are the parts in the carriage of a lathe ? Explain any one of them.

33. EØ£zv, vmhªhÀ ©ØÖ® Pmk¨£kzxu¼ß (PPC) •UQ¯ £oPÒ ¯õøÁ ?
What are the functions of PPC [Production, Planning and Control] ?

34. ÷©øh ÁøP Aø©¢u xøÍ°k® C¯¢vµzvß Aø©¨ø£¨ £h® Áøµ¢x
ÂÍUSP.
Draw and explain the bench drilling machine.

35. Kº Aøµ¨¦a \UPµzvÀ RÌUPsh SÔ±k ö\´¯¨£mkÒÍx
W A 36 M 7 V 20
÷©ØPsh GsPÒ ©ØÖ® GÊzxPÎß ö£õ¸øÍU TÖP.
A grinding wheel is specified as follows :
W A 36 M 7 V 20
Explain the meaning of letters and numbers.

£S-v & IV / PART - IV
SÔ¨¦ : AøÚzx ÂÚõU-P-ÐU-S® Âøh-¯-ÎU-P-Ä®. 2x10=20
Note : Answer all the questions.

36. (A) ÷©À÷|õUQ x¸ÁÀ •øÓUS®, RÌ ÷|õUQ x¸ÁÀ •øÓUS® EÒÍ
÷ÁÖ£õkPÒ ¯õøÁ ?
AÀ-»-x
(B) Bµ® ÁÈ |P¸® xøÍ°k® C¯¢vµzvß Aø©¨ø£¨ £h® Áøµ¢x
ÂÍUSP.
(a) What are the differences between a up milling and a down milling methods ?
OR
(b) Explain the construction of a Radial drilling machine.

[ v¸¨¦P / Turn over

7481 8

37. (A) umøh¨ £µ¨¦ Aøµ¨¦ C¯¢vµ® JßÔß £h® Áøµ¢x ÂÁ›UPÄ®.
AÀ-»-x
(B) BºU öÁÀi[ ö\¯À•øÓ°øÚ £hzxhß ÂÁ›UPÄ®.
(a) Sketch and explain a surface grinder.
OR
(b) Explain Arc Welding with diagram.

-oOo-
-

No. of Printed Pages : 8
7501(A)
!7501ABasicMechaEnginee! £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_¨£vÂÀ 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

7501(A) 2

1. Pøh-\À C¯¢-v-µz-vÀ £¯ß-£-kz-u¨-£-k® öÁm-kÎ :
(A) µ®-£¨ £À öPõsh öÁm-k-Î
(B) £»-•øÚ öÁm-k-Î
(C) xs-k-£-kz-x® öÁm-k-Î
(D) J¸•øÚ öÁm-k-Î
The tool used in Lathe is a :
(a) Slitting saw tooth cutting tool
(b) Multipoint cutting tool
(c) Parting cutting tool
(d) Single point cutting tool

2. £o¨-ö£õ-¸-Îß öÁΨ-£U-Pz-v-¾®, xøÍ-°ß Em-£U-Pz-v-¾® \›-Ä E¸-øÍ
Pøh-\À ö\´-²® •øÓ :
(A) Põ®-ö£Ísm öµìm •øÓ
(B) Ái-Á öÁm-kÎ •øÓ
(C) ÁõÀ-£-S-vø¯ JxUQ øÁU-S® •øÓ
(D) Cøn¢u Fmh •øÓ
The method used for Taper turning on outer surface of the workpiece and inner surface of a hole is :
(a) Compound rest method
(b) Form tool method
(c) Tail stock set over method
(d) Combined feed method

3. G»õì-iU Aøµ¨-¦a \U-P-µ® ö\´-¯¨ £¯ß-£-k® ¤i-©õ-Ú¨ ö£õ-¸Ò :
(A) AµU-S (B) Âm-›-ø£-k (C) öµ]-Úõ´-k (D) ]¼U-÷Pm
Bond used for making elastic grinding wheel is :
(a) Shellac (b) Vitrified (c) Resinoid (d) Silicate

4. xøÍ-°-k® A»-QÀ EÒÍ £ÒÍz-vß ö£¯º :
(A) L¦Ñm (B) V&Á-iÁ £ÒÍ®
(C) ÷|º-Á-iÁ £ÒÍ® (D) U&Á-iÁ £ÒÍ®
The name of the groove in drill is :
(a) Flute (b) V-type groove
(c) Straight type groove (d) U-type groove

3 7501(A)

5. E¸-Á-ø©U-S® C¯¢-v-µzøu Ps-k-¤-iz-u-Áº :
(A) ø©U-÷PÀ L£õ-µ-÷h (B) öíß-Ô -©õmì-÷»
(C) ÷á®ì |õì-ªz (D) G¼- öÁm-Û
The Shaping machine was designed by :
(a) Michael Faraday (b) Henry Maudslay
(c) James Nasmith (d) Eli Whitney

6. ÷ÁP-©õP v¸®£ ö\´-²® C¯¢-vµ ~m-£z-vß ‰»® •ß-Ý® ¤ß-Ý® C¯[-S®
£õ-P® :
(A) ÷\iÀ (B) £o-÷©-øh
(C) SÖUS |Ê-Â (D) v-ª-_
The part involved in reciprocation by quick return is :
(a) Column (b) Table
(c) Crossrail (d) Ram

7. ©Ûu C¯¢-v-µz-vÀ, £À-÷ÁÖ Pm-h-øÍ-PøÍ EÒ-Áõ[Q, Pm-k¨-£õmk P¸-ÂUS
Gkzxa ö\À-¾® •U-Q¯ £õ-Pz-vß ö£¯º :
(A) En-› (B) Pm-k¨-£õmk P¸-Â
(C) ¤ì-hß (D) £Ø\U-P-µ[-PÒ
The part which receives the commands and send to the control system in Robot is :
(a) Sensor (b) Control system
(c) Piston (d) Gears

8. E»º Aøµ¨-¦aö\-¯-¼ß-÷£õ-x HØ-£-k® öÁ¨-£z-vß AÍÄ :
(A) 10008C (B) 20008C (C) 12008C (D) 2008C
The heat generated during dry grinding will be :
(a) 10008C (b) 20008C (c) 12008C (d) 2008C

9. ªÀ-¼[ C¯¢-v-µz-vÀ öÁm-kUP-¸-Â-PÒ ö£õ-¸z-u¨-£-k® £õ-P® :
(A) -Ea-]U-øP (B) ys£õ-P®
(C) _ÇÀ us-k (D) _ÇØ-Ô
In a milling machine, cutters are mounted on :
(a) Over hanging arm (b) Column
(c) Arbor (d) Spindle

[ v¸¨¦P / Turn over

7501(A) 4

10. £o-÷©øh |P-¸® yµz-øuU Pm-k¨-£-kz-x® £õ-P® :
(A) SÖUS |Ê-Â (B) ÷\iÀ
(C) ö\[-Szx Fmh ©øµz-us-k (D) vø\-©õ-Ø-Ô
The distance of table-travel is controlled by :
(a) Cross-slide (b) Saddle
(c) Elevating screw (d) Trip dogs

11. Bs-kUS J¸ •øÓ ö\´-²® £µõ-©-›¨¦ :
(A) C¯¢-v-µ® ö\¯-»Ø-Ö¨ ÷£õ-Ú-÷£õx ÷©Ø-öPõÒ-Ю £µõ-©-›¨-¦
(B) ÁÇU-P¨ £µõ-©-›¨-¦
(C) ö£¸® £Ê-x-£õº¨-¦
(D) uk¨-¦¨ £µõ-©-›¨-¦
Maintenance done once in a year is known as :
(a) Breakdown maintenance
(b) Routine maintenance
(c) Corrective maintenance
(d) Preventive maintenance

12. ¤Íõì-iU {ø» öÁÀ-i[ Gß-£x :
(A) E¸-Q-¯ öÁÀ-i[ (B) AÊzu öÁÀ-i[
(C) BºU öÁÀ-i[ (D) ªß-uøh öÁÀ-i[
Plastic Welding is :
(a) Fusion Welding (b) Pressure Welding
(c) Arc Welding (d) Resistance Welding

13. P¨-£À ©Ø-Ö® PhÀ-\õº¢u xøÓ-P-ÎÀ £¯ß-£-kz-u¨-£-k® £®¦ :
(A) _Ç-¾® £®-¦ (B) ø©¯-Â-»US £®-¦
(C) ]Ó¨¦ ÁøP £®-¦ (D) •ß-Ý® ¤ß-Ý® C¯[-S® £®-¦
The Pump which is used in ship and marine field :
(a) Rotary pump (b) Centrifugal pump
(c) Special pump (d) Reciprocating pump

5 7501(A)

14. £À-»õ-°-µU-P-nU-PõÚ öÁm-k-•-øÚ-PøÍU öPõsh öÁm-kÎ :
(A) Aøµ¨-¦a \U-P-µ® (B) Pøh-\À öÁm-k-Î
(C) ªÀ-¼[ öÁm-k-Î (D) xøÍ-°-k® öÁm-k-Î
The cutting tool with several thousands of cutting edges is :
(a) Grinding wheel (b) Lathe cutting tool
(c) Milling cutter (d) Drill bit

15. ""©Ûu C¯¢-v-µz-vß ‰øÍ'' GßÖ AøÇU-P¨-£-k® £õ-Pz-vß ö£¯º :
(A) ¤ì-hß (B) En-›
(C) £Ø-\U-P-µ[-PÒ (D) Pm-k¨-£õmk P¸-Â
“The brain of Robot” is __________.
(a) Piston (b) Sensor
(c) Gears (d) Control system

£Sv & II / PART - II

SÔ¨¦ : GøÁ-÷¯-Ý® £z- x ÂÚõU-P-ÐUS Âøh-¯-ÎU-P-Ä®. ÂÚõ Gs 28 &US
Pmhõ-¯-©õ-P Âøh-¯-ÎU-P-Ä®. 10x3=30
Note : Answer any ten questions. Question No. 28 is compulsory.

16. lÀ ¹® ÷»z GÆ-Á-øP-¯õÚ ÷Áø»-PÒ ö\´¯ £¯ß-£-k-Q-Óx ?
What are the uses of tool room lathe ?

17. Pøh-\À C¯¢-v-µz-vß öÁmk ÷ÁP® Gß-ÓõÀ GßÚ ?
What is ‘cutting speed’ in lathe ?

18. xøÍ-°-k® A»-Qß ÁøP-PÒ ¯õøÁ ?
What are the different types of drills ?

19. xøÍ-ø¯a _ØÔ Hß \©¨-£-kz-x-uÀ ö\´¯ ÷Ás-k® ?
What is the need of spot facing ?

[ v¸¨¦P / Turn over

7501(A) 6

20. E¸-Á-ø©U-S® C¯¢-v-µz-vß ""Fm-h®'' – Áøµ-¯-ÖU-P-Ä®.
Define “feed” of a shaping machine.

21. Aøµ¨-¦a ö\¯À Gß-ÓõÀ GßÚ ?
What is meant by grinding ?

22. ö£›-ö£-µÀ ªÀ-¼[ •øÓ-PÒ ¯õøÁ ?
What are the types of peripheral milling ?

23. £µõ-©-›z-uÀ – Áøµ-¯-ÖU-P-Ä®.
Define “Maintenance”.

24. G»Um-÷µõk AÍ-Ä-PÒ GÆ-ÁõÖ SÔ¨-¤-h¨-£-k-Q-Óx ?
How are the welding electrodes specified ?

25. øím-µõ-¼U ]¼s-h-›ß £¯ß-PÒ ¯õøÁ ?
What are the uses of “hydraulic cylinder” ?

26. EÒ-Ïk HØ-S® A»-Qß £o-PÒ ¯õøÁ ?
What are the functions of input reading unit ?

27. uõÛ-¯[-Q-°-¯À (Automation) Gß-ÓõÀ GßÚ ?
What is meant by “Automation” ?

28. SÔ-±-k- uø»°ß ÁøP-PÒ ¯õøÁ ?
What are the types of indexing head ?

7 7501(A)

£Sv & 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. hµm ÷»z-vØ-S® ÷P¨ì-hß ÷»z-vØ-S® EÒÍ ÷ÁÖ-£õ-k-PÒ H÷u-Ý® I¢-v-øÚU
TÖ-P.
Mention any five differences between a turret and a capstan lathe.

30. xøÍ-°-k® C¯¢-v-µz-vß AÍøÁ GÆ-ÁõÖ SÔ¨-¤-k-Áõ´ ?
How is the size of a drilling machine specified ?

31. SÔ¨¦ Áøµ-P- :
(A) -v-ª-]ß Aø\-Ä }Í®
(B) v-ª-]ß C¸¨-¤-h®
Write short notes on :
(a) The stroke length of the ram
(b) Position of the ram

32. Kº Aøµ¨-¦a \U-P-µz-vÀ RÌU-Psh SÔ-±-k ö\´-¯¨-£m-kÒÍx. AÁØ-Ôß Gs
©Ø-Ö® GÊz-vß ö£õ-¸øÍU TÖP.
W A 46 K 5 V 17
A grinding wheel is specified as follows W A 46 K 5 V 17. Explain the meaning of each
symbol.

33. ªÀ-¼[ C¯¢-v-µz-vÀ ö\´-¯¨-£-k® £À-÷ÁÖ ÷Áø»-PøÍU TÖP.
Mention the different types of Milling Machine operations.

34. C¯¢- v - µ U Pm- k ¨- £ õmk A»- Q ß ÁøP- P - Î À H÷u- Ý ® Jß- Ô øÚ £hz- x - h ß
ÂÁ-›U-P-Ä®.
Explain with neat sketch any one type of Machine Control Unit.

35. ø©¯ »US £®-¤À EÒÍ I¢x ö£¸® ¤›-Ä-PøÍ GÊ-x-P.
What are the five major types of centrifugal pump ?

[ v¸¨¦P / Turn over

7501(A) 8

£Sv & IV / PART - IV

SÔ¨¦ : AøÚzx ÂÚõU-PÐU-S® Âøh-¯-ÎU-P-Ä®. 2x10=20

Note : Answer all the questions.

36. (A) Pøh-\À C¯¢-v-µz-vß £h® Áøµ¢x £õ-P[-PøÍ SÔU-P-Ä®.
AÀ-»-x
(B) xøÍ- ° - k ® C¯¢- v - µ z- v À ö\´- ¯ ¨- £ - k ® ÷Áø»- P Ò ¯õøÁ ? H÷u- Ý ®
Cµs-iøÚ £hz-x-hß ÂÁ-›U-P-Ä®.
(a) Draw a neat sketch of a lathe and label its parts.
OR
(b) Mention the different types of operations in “Drilling Machine”. Draw any two with
neat sketch and explain.

37. (A) ªßuøh öÁÀ-i[ £h® Áøµ¢x ÂÍU-S-P.
AÀ-»-x
(B) ªÀ-¼[ C¯¢-v-µz-vß Aø©¨-ø£¨ £h® Áøµ¢x ÂÍU-S-P.
(a) Sketch and explain resistance welding.
OR
(b) Draw a neat diagram of a milling machine and explain its construction.

-o0o-

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