TN 11th Question Paper 2025 Basic Civil Engineering

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8479
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Part III — Vocational Subjects
Ai¨£øhU Pmhh¨ ö£õÔ°¯À
BASIC CIVIL ENGINEERING
( 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®.
(3) PõÀS÷»mhº £¯ß£kzxÁx AÝ©vUP¨£kQÓx.
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.
(3) Use of Calculator is permitted.

£Sv & I / PART - I

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

(ii) öPõkUP¨£mh |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

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1. 30E - 60E •U-÷Põn ©m-hz-vß }Í® __________.

(A) 15 ö\.« (B) 30 ö\.«
(C) 25 ö\.« (D) 35 ö\.«
The length of 30E - 60E set square is __________.

(a) 15 cm (b) 30 cm

(c) 25 cm (d) 35 cm

2. Bm- ÷ hõ- ÷ Pm Áøµ- £ - h [- P øÍ |PÀ Aa- ] - k - Á - u Ø- S _________ Pm- h øÍ
£¯ß-£-k-QÓx.
(A) ¨Íõm (Plot) (B) GUì-÷£õºm (Export)
(C) öPõ-¯m (Quit) (D) {³ (New)
__________ command is used to print the AutoCAD drawing.

(a) PLOT (b) EXPORT

(c) QUIT (d) NEW

3. L-¤-Ÿì Pm-h-øÍ-°ß Gvº Pm-h-øÍ __________ BS®.

(A) GUì-÷£õºm (B) ÷»¯º
(C) Ÿöáß (D) uõ
Opposite form of freeze take is __________ take.
(a) Export (b) Layer
(c) Regen (d) Thaw

4. |À» ö\[- P À- ¼ ß AÊz- u - Â ø\ uõ[- S - v - Ó ß __________ US SøÓ- Á õP
C¸U-PUThõ-x.
(A) 75 Q.Q/-ö\.-«2 (B) 65 Q.Q/-ö\.-«2
(C) 85 Q.Q/-ö\.-«2 (D) 55 Q.Q/-ö\.-«2
The crushing strength of good bricks should not be less than __________.
(a) 75 kg/cm2 (b) 65 kg/cm2
(c) 85 kg/cm2 (d) 55 kg/cm2

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5. __________ Av-P-©õP C¸¢-uõÀ ö\[-PÀ Ái-Á® ©õ-Ô-Â-k®.
(A) Ps-nõ-i (B) A¾-ª-Úõ
(C) ]¼U-Põ (D) ©õU-Û-]-¯õ
Excess of __________ leads to the decay of bricks.
(a) Glass (b) Alumina
(c) Silica (d) Magnesia

6. ©øÇ-°-ß ÷£õx __________ ÷£õhU Thõ-x.
(A) _s-nõ®-¦ (B) Põß-Q-Ÿm
(C) â¨-\® (D) ©nÀ
__________ should not be laid during rain.
(a) Lime (b) Concrete
(c) Gypsum (d) Sand

7. ö\[-PÀ Pm-k-÷Á-ø»-°À, ]ö©s-kU-S®, ©n-¾U-S-©õÚ P»-øÁ _________
ÂQ-u-©õ-S®.
(A) 1 : 3 (B) 1 : 6 (C) 1 : 2 (D) 1 : 4
The ratio of cement-sand mortar is __________ in brick work.
(a) 1:3 (b) 1:6 (c) 1:2 (d) 1:4

8. __________ }øµ Ps-i¨-£õ-PU Põß-Q-Ÿ-miÀ £¯ß-£-kz-uU Thõx.
(A) BÖ (B) SÍ® (C) P-hÀ (D) H›
__________ water should not be used in concrete.
(a) River (b) Pond (c) Sea (d) Lake

9. BÌ¢u CÍg-]-Á¨¦ {Ó-•-øh¯ ©µ® __________.
(A) \õÀ ©µ® (B) ÷uUS ©µ®
(C) £»õ- ©-µ® (D) P¸[-Põ¼ ©µ®
The dark pink colour tree is __________.
(a) Sal wood (b) Teak wood
(c) Jack wood (d) Rose wood

[ v¸¨¦P / Turn over

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10. PÀ _s-nõ®-¤À PõÀ-]-¯® BU-ø\-iß AÍÄ __________ EÒÍx.
(A) 85% (B) 50% (C) 95% (D) 70%
The lime contains __________ Calcium oxide.
(a) 85% (b) 50% (c) 95% (d) 70%

11. §ª A-vºa-]-°-¼-¸¢x £õ-x-PõU-P¨ £¯ß-£-kz-x® Aì-v-Áõ-µ® __________.
(A) ÷\º¢u Aì-v-Áõ-µ® (B) _Áº Aì-v-Áõ-µ®
(C) ys Aì-v-Áõ-µ® (D) öuõ-hº Aì-v-Áõ-µ®
Foundation provided to protect from Earthquake is __________.
(a) Combined footing (b) Wall footing
(c) Pile foundation (d) Continuous footing

12. öÁΨ-¦Ó _Áº-P-Îß ‰ø»-P-ÎÀ £¯ß-£-kz-u¨-£-k® PÀ-¼-ß ö£¯º _________.
(A) ‰ø»U-PÀ (B) ]À-©m-h®
(C) öÁu-›[ (D) Põº-ö£À
The name of the stone used in external corners is __________.
(a) Quoin stone (b) Sill stone
(c) Weathering stone (d) Corbel stone

13. __________ ö\[-Szx ÷Põn _Áøµ Aø©UP £¯ß-£-k-Q-Óx.
(A) Ss-k-¡À (B) Pµ-øn
(C) ‰ø» ©m-h® (D) Cµ-\-©m-h®
__________ is used to set right angles in walls.
(a) Plumb bob (b) Trowel
(c) Mason square (d) Spirit level

14. \õ´-ÁõÚ Tøµ-P-ÎÀ \›-Âß ÷©À __________ hõº-©º \ß-ÚÀ Aø©U-P¨-£-k®.
(A) Qøh-©m-hz-vÀ (B) ö\[-Sz-uõ-P
(C) \õ´-Áõ-P (D) \›-Áõ-P
Dormer window is a __________ window built in the sloping side of a pitched roof.
(a) Horizontal (b) Vertical
(c) Sloped (d) Inclined

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15. PÀ- | õº Am- ø h- P Ò u¯õ- › U- P ¨- £ - k ®- ÷ £õx AvÀ ÷\ºU- P ¨- £ - k ® PÀ- | õº
CøÇ-P-Îß AÍÄ __________.
(A) 15% (B) 10% (C) 25% (D) 20%
The content of Asbestos fiber in the manufacture of A.C sheet is __________.
(a) 15% (b) 10% (c) 25% (d) 20%

£Sv & II / PART - II
SÔ¨¦ : GøÁ÷¯Ý® £z-x ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 28 &US
Pmhõ¯©õP Âøh¯ÎUP ÷Ás-k®. 10x3=30
Note : Answer any ten questions. Question No. 28 is Compulsory.

16. Áøµ-£-h® Áøµ¢-v-h¨ £¯ß-£-k® H÷u-Ý® ‰ßÖ P¸-Â-PøÍU SÔ¨-¤-kP.
Mention any three instruments to draw the drawing.

17. H÷u-Ý® ‰ßÖ ÁøPU ÷Põ-k-P-Îß ö£¯º-PøÍ GÊ-xP.
Write any three types of lines.

18. £» ÷Põ-n® Pm-h-øÍ-ø¯¨ £Ø-Ôa ]Ö SÔ¨¦ ÁøµP.
Write short notes on polygon command.

19. ¦Â Aø©¨-¤-¯À uß-ø©-ø¯¨ ö£õ-¸zx £õ-øÓ-P-Îß ÁøP-PÒ ¯õøÁ ?
Write the Geological classification of rocks.

20. EÒ-Ï-hØÓ PØ-P-Îß ¤›-Ä-PÒ ¯õøÁ ?
What are the classification of Hollow blocks ?

21. ö£õ-x-ÁõP Gz-uøÚ ÁøP-¯õÚ ]ö©sm EÒÍx ? AøÁ ¯õøÁ ?
What are the types of cement in general ?

22. ÷uUS ©µ® £ØÔ ]Ö -S-Ô¨¦ Áøµ-P.
Write short notes on Teak wood.

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23. Aì-v-Áõ-µz-vß BÇ® PnU-Q-h¨ £¯ß-£-k® µõ[-Qßì `z-v-µzøu GÊ-v
Av-¾ÒÍ Ck-S-Ô-PøÍ ÂÍU-SP.
Write the Rankine’s formula to calculate the depth of foundation and write the notation.

24. Q[ U÷Íõ-\º – Áøµ-¯-Ö.
Define King Closer.

25. ¼s-hÀ-PÒ £ØÔ ]Ö- S-Ô¨¦ Áøµ-P.
Write short notes on Lintel.

26. Pu-Ä åm-hº-P-ÎÀ EÒÍ £õ-P[-PÒ ¯õøÁ ?
What are the parts of Door Shutter ?

27. ÷»\õÚ Tøµ Am-øh-P-Îß ÁøP-PÒ ¯õøÁ ?
What are the types of light roofing sheets ?

28. ÷£ÚÀ £ØÔ ]Ö -S-Ô¨¦ Áøµ-P.
Write short notes on panel.

£Sv & III / PART - III
SÔ¨¦ : GøÁ÷¯Ý® I¢-x ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 35 &US 5x5=25
Pmhõ¯©õP Âøh¯ÎUP ÷Ás-k®.
Note : Answer any five questions. Question No. 35 is Compulsory.

29. T-©m-hz-vß £¯ß-PÒ ©Ø-Ö® £hzøu Áøµ¢x £õ-P[-PøÍ SÔ¨-¤-kP.
What are the uses of T-square ? Draw a neat sketch and label its parts.

30. PØ-P-Îß £¯ß-PÒ ¯õøÁ ?
What are the uses of stones ?

31. Põß-Q-Ÿm-i-¾ÒÍ ‰»¨-ö£õ-¸m-P-ÎÀ Cµs-i-øÚ¨ £ØÔ GÊ-xP.
Write about any two ingredients of Concrete.

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32. ©µzøu £u¨-£-kz-x-u-¼ß ÷|õU-P[-PÒ ¯õøÁ ?
What are the objectives of seasoning of timber ?

33. _Áº Aì-v-Áõ-µzøu¨ £hz-x-hß ÂÁ-›.
Explain the types of wall foundation with sketches.

34. Á¾-Åm-h¨-£mh PØ-Põøµ Tøµ £ØÔ ÂÍU-SP.
Explain about the Reinforced Cement Concrete (RCC) roof slab.

35. ÁøÍ-Âß £h® Áøµ¢x £õ-P[-PøÍU SÔU-P-Ä®.
Draw a neat sketch of Arches and mention its parts.

£Sv & IV / PART - IV
SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. ÷uøÁ-¯õÚ Ch[-P-ÎÀ 2x10=20
£h® ÁøµP.
Note : Answer all the questions. Draw neat sketches wherever necessary.

36. (A) |À» PØ-P-ÐUS C¸UP ÷Ás-i¯ uß-ø©-PÒ £ØÔ ÂÁ›.
AÀ»x
(B) ö\[-PÀ Pm-k-÷Á-ø»-°À L¤Í-ªè ¤øn¨-ø£¨ £hz-x-h-ß ÂÁ›.
(a) Explain the characteristics of good building stones.
OR
(b) Explain Flemish Bond in brick work with neat sketch.

37. (A) ]ö©sm P»-øÁ u¯õ-›z-uø» ÂÁ-›.
AÀ»x
(B) ø©¯U-P®-¦z y»U-Pmk £ØÔ £hz-x-hß ÂÁ-›.
(a) Explain the preparation of Cement mortar.
OR
(b) Explain King post truss with neat sketch.

-oOo-

[ v¸¨¦P / Turn over

Study Materials
Notes

Model Papers Class 6 Notes

Sample Papers Class 7 Notes
Half Yearly Sample Papers Class 8 Notes

Class 9 Notes
Important Resources
Class 10 Notes
Periodic Table
Class 11 Notes
Writing Skills / Formats

Maps of India / World Class 12 Notes

Books and Solutions

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HC Verma Chapter Wise Solutions
RD Sharma Solutions
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