TN 12th Question Paper 2026 Basic Civil Engineering

FOR TN 12TH EXAM PREPARATION

TN 12th 2026
Question Paper · Basic
Civil Engineering
EXAM YEAR TYPE SUBJECT

TN 12th 2026 Question Paper Basic Civil Engineering

Notes · Sample Papers · Previous Year Papers · Mock Tests

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No. of Printed Pages : 7
9084

!9084BasicCivilEnginee! £vÄ Gs
Register Number

Part III — Vocational Subjects
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BASIC CIVIL ENGINEERING
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Põ» AÍÄ : 3.00 ©o ÷|µ® ] [ ö©õzu ©v¨ö£sPÒ : 90

Time Allowed : 3.00 Hours ] [ Maximum Marks : 90

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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.

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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.

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9084 2

1. ©ÛuÛß ªP •UQ¯ Ai¨£øhz ÷uøÁPÎÀ JßÖ __________ BS®.
(A) Áͺ¨¦ ª¸P[PÒ (B) EøÓÂh®
(C) \õø» (D) ÁõPÚ®
__________ is a highly essential basic need of mankind.

(a) Pet animals (b) Shelter

(c) Road (d) Vehicle

2. ö£õxÁõP Á›ø\ ÃkPÒ __________ Pmh¨£kQßÓÚ.
(A) £nUPõµºPÐUPõP (B) öuõÈ»õͺPÐUPõP
(C) Aµ]¯ÀÁõvPÐUPõP (D) A¾Á»ºPÐUPõP
Row houses are generally constructed for __________.

(a) rich people (b) labourers

(c) politicians (d) officers

3. áÀ¼PÒ ©ØÖ® ]ö©søhz uµ PØPõøµ u¯õ›UP xøna ÷\ºUøP¨
__________

ö£õ¸mPЮ £¯ß£kzu¨£kQÓx.
(A) }º (B) Gsön´ (C) ©µ® (D) GLS
An admixture is a material other than __________, aggregates and cement used in concrete

making.

(a) water (b) oil (c) wood (d) steel

4. A¾ªÛ¯zvß E¸S {ø» __________ BS®.
(A) (B)
8568 C 5688 C (C) 8658 C (D) 6588 C

The melting point of Aluminium is about _________.

(a) 8568 C (b) 5688 C (c) 8658 C (d) 6588 C

5. ¦Â°ß ÷©Ø£µ¨¤¾ÒÍ £À÷ÁÖ ö£õ¸mPÎß J¨£õÚ {ø»PøÍ AÔ¯
yµ[PÒ ©ØÖ® ÷Põn[PøÍ AÍUS® •øÓ GÚ¨£kQÓx. __________

(A) mµõÁº][ (B) £›©õn®
(C) ©mh AÍUøP (D) {» AÍøÁ
The determination of the relative positions of the object on the surface by making linear and

angular measurement is called __________.

(a) Traversing (b) Measurements

(c) Levelling (d) Surveying

6. GPS Gߣuß Â›ÁõUP® __________ .
(A) Global Precise System (B) Global Positioning System

(C) Global Positioning Section (D) Guide Positioning System

The abbreviation of GPS is __________.

(a) Global Precise System (b) Global Positioning System

(c) Global Positioning Section (d) Guide Positioning System

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 2 of 7

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7. Si usp¸UPõP AÝ©vUP¨£mh P»[PÀ ußø©°ß AÍÄ __________ .
(A) &¼¸¢x
15 Áøµ (B) &¼¸¢x
20 ppm Áøµ 5 10 ppm

(C) &¼¸¢x
20 Áøµ (D) &¼¸¢x
25 ppm Áøµ 10 15 ppm

For drinking water, the permissible turbidity is __________.

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(c) 20 to 25 ppm (d) 10 to 15 ppm

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(C) a
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75% 85%(D) •uÀ 80% 90%

In Rapid sand filter bacterial efficiency is __________.

(a) 85% to 95% (b) 60% to 70%

(c) 75% to 85% (d) 80% to 90%

9. Sί»øÓ, \ø©¯»øÓ, øPPÊÄ® öuõmi ÷£õßÓÁØÔ¼¸¢x öÁÎ÷¯Ö®
vµÁU PÈÄ BS®.
__________

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(C) ^÷Áä (D) ÷©ØPsh AøÚzx®
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The liquid wastes from bathrooms, kitchen, wash basin is __________.

(a) sullage

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(c) sewage (d) all of the above

10. wø© HØ£kzx® £õUj›¯õUPøÍ APØÓ S÷Íõ›ß ÷\ºUS® _zvP›¨¦ •øÓ
.
__________

(A) A÷µõ¤U •øÓ (B) Q¸ªPøÍ }USuÀ
(C) AÚ÷µõ¤U •øÓ (D) QͺÅUPa ÷\Ö
The treatment process by which the pathogenic bacteria can be removed by adding chlorine
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(c) anaerobic process (d) activated sludge

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(A) ©õÁmh \õø»PÒ
CønUS®.
(B) ÷u]¯ ö|kg\õø»
(C) Qµõ© \õø»PÒ (D) ©õ{» ö|kg\õø»
__________ connect villages with one another and with nearby cities.

(a) District roads (b) National Highway

(c) Village roads (d) State Highway

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9084 4

12. Ea] ©ØÖ® \õø» ÷©Ø£µ¨¤ß Âή¦PøÍ CønUS® ÷Põmiß \›Ä
GßÖ AøÇUP¨£kQÓx.
__________

(A) ªøP E¯ºÄ (B) \õ´Ä
(C) ÂØ\õ´Ä (D) öuõø»Ä £õºøÁ
The slope of the line joining the crown and the edges of the road surface is called _________.

(a) super elevation (b) gradient

(c) camber (d) sight distance

13. y¯ }›ß Ahºzv __________ .
(A) Q.Q/PÚ«mhº
1500 (B) 2000 Q.Q/PÚ«mhº
(C) Q.Q/PÚ«mhº
2500 (D) 1000 Q.Q/PÚ«mhº
Density of pure water is __________.
3 3
(a) 1500 kg/m (b) 2000 kg/m
3 3
(c) 2500 kg/m (d) 1000 kg/m

14. vµÁzvß KmhzvØS uøh¯õP C¸UPUTi¯ vµÁ Gvº¨¤øÚ __________

GßQ÷Óõ®.
(A) Ahºzv (B) ¤Ó Jmkø© (C) ~s¦øÇø© (D) £õQ¯À
__________ is a physical property of fluids which shows resistance to flow.

(a) Density (b) Adhesion (c) Capillarity (d) Viscosity

15. ö£õxÁõP §P®£zvß AÍÂøÚ AÍUP EuÄ® AÍÁõS®.
__________

(A) ›Uhº AÍÄ (B) ö©m›U AÍÄ
(C) AÍÄ÷PõÀ (D) £÷¯õö©m›U AÍÄ
__________ is commonly used to measure an earthquake’s magnitude.

(a) Richter scale (b) Metric scale

(c) Scale (d) Biometric scale

£Sv & II / PART - II

SÔ¨¦ : GøÁ÷¯Ý® £zx ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 28 &US
Pmhõ¯©õP Âøh¯ÎUP ÷Ásk®. 10x3=30

Note : Answer any 10 questions. Question No. 28 is Compulsory.

16. Si°¸¨¦ Pmhh[PÎß ÁøPPøÍ £mi¯¼kP.
List the types of residential houses.

17. x¸¨¤iUPõu GLS £ØÔ ]Ö SÔ¨¦ ÁøµP.
Write short notes on stainless steel.

18. PÈÄ}ºU SÇõ´PÎß ÁiÁ[PøÍ £mi¯¼kP.
List the shapes of Sewer Sections.

19. \[Q¼ ÷£õkuÀ GßÓõÀ GßÚ ?
What is meant by chaining ?

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 4 of 7

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20. GPS &ß Ai¨£øh £SvPÒ ¯õøÁ ?
What are the fundamentals of GPS ?

21. usp›À EÒÍ ©õ_UPøÍ PshÔ¯ EuÄ® ÷\õuøÚPøÍ £mi¯¼kP.
List the name of the tests to determine the impurities in water.

22. }›ß PiÚz ußø© Gߣx ¯õx ?
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What is hardness of water ?

23.
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Define activated sludge process.

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SÇõ´a£õ´a\¼À vø\ ÷ÁP® Põn EuÄ® ö\]°ß `zvµ® GÊv Auß
List the uses of Camber.

25.

CkSÔPøÍ ÂÍUSP.
Write the Chesy’s formula for velocity of flow in pipes with its notations.

26. CøÓøÁ GßÓõÀ GßÚ ?
What is meant by pump ?

27. £õìPÀ Âvø¯U TÖP.
State Pascal’s law.

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28. Gsön´ P]ÂØPõÚ Põµn[PÒ H÷uÝ® ‰ßÖ GÊxP.
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Write any three causes of oil spills.

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III / PART - III

SÔ¨¦ : GøÁ÷¯Ý® I¢x ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 35 &US
Pmhõ¯©õP Âøh¯ÎUP ÷Ásk®. 5x5=25

Note : Answer any 5 questions. Question No. 35 is Compulsory.

29. J¸ ÃmiÀ Ch®ö£Ö® AøÓPøÍ £mi¯¼mk, AvÀ H÷uÝ® J¸ AøÓ°øÚ
ÂÍUSP.
List the rooms in a residence. Explain any one of them.

30. {»UP›a \õ®£À ö\[PØPÎß AÝT»[PÒ ©ØÖ® ¤µvT»[PÒ ¯õøÁ ?
What are the advantages and disadvantages of Fly ash bricks ?
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31. Jΰ¯À \xµzøu £hzxhß ÂÍUSP.
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Write briefly about the system of sanitation.

ag \õø»÷¯õµ ©µ ÷ÁÍõsø© £ØÔ ]Ö SÔ¨¦ GÊxP.
33.

Write a short note on Road Arboriculture.

34. ÁiPmkuÀ Áøµ¯Özx, Auß ö\¯ÀPøÍ ÂÍUSP.
Define filtration and explain the actions involved.

35. ø©¯Â»US CøÓøÁUS® £›©õØÖ CøÓøÁUS® EÒÍ ÷ÁÖ£õkPÒ ¯õøÁ?
What are the differences between Centrifugal pumps and Reciprocating pumps ?

[ v¸¨¦P / Turn over

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9084 6

£Sv & IV / PART - IV

SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. ÷uøÁ¯õÚ Ch[PÎÀ £h®
ÁøµP. 2x10=20

Note : Answer all the questions. Draw neat sketch wherever required.

36. (A) £õŸ\ \õ¢x ©ØÖ® Auß AÝT»[PÒ, ¤µvT»[PÒ £ØÔ GÊuÄ®.
AÀ»x
(B) ©mh AÍUøP SÔ¨¦ ¦zuPzvß J¸ £UP® R÷Ç öPõkUP¨£mkÒÍx.
AvÀ EÒÍ GÀ»õ ¦ÒÎPÐUS® SøÓUP¨£mh ©mhzøu H÷uÝ® J¸
•øÓ°À PõsP. PnURkPøÍ \›£õºUPÄ®, ©mhUSÔ°À SøÓUP¨£mh
©mhzøu « GÚU öPõÒP.
+25.000

¦ÒÎ BS IS FS SÔ¨¦PÒ
A 1.120 BM

B 1.650

C 1.750

D 1.200 2.900 CP 1

E 1.660

F 2.520

G 0.900 3.250 CP 2

H 1.560 2.100 CP 3

I 2.200

(a) Write about Plaster of Paris and mention its advantages and disadvantages.

OR

(b) The page of a level book is given below. Calculate the RL of all the points by any one

method. Apply usual checks. Assume the RL of BM as +25.000 m.

Station BS IS FS Remarks

A 1.120 BM

B 1.650

C 1.750

D 1.200 2.900 CP 1

E 1.660

F 2.520

G 0.900 3.250 CP 2

H 1.560 2.100 CP 3

I 2.200

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 6 of 7

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37. (A) \õø» £zxUPÐUPõÚ Põµn[PÒ, ÂøÍÄPÒ ©ØÖ® uk¨¦
BQ¯ÁØøÓ¨ £ØÔ ÂÍUSP.
AÀ»x
(B) ª.« Âmh•®
100 « }Í•® öPõsh J¸ SÇõ°ß ÁÈ÷¯ }º ÂÚõiUS
120

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3

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‘f’ 0.002

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Explain the causes, effects and prevention of road accidents.

l a ag
(b) ag OR

Water flows through a pipe of 100 mm diameter and 120 m long with a velocity of

3 m/sec. Find the loss of head due to friction by using Darcy’s formula. Take the

friction factor as ‘f’ 0.002.

- o O o -

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