DDCET 2025 Question Paper Engineering Series A

FOR DDCET EXAM PREPARATION

DDCET 2025
Question Paper ·
Engineering Series A
EXAM YEAR TYPE SUBJECT

DDCET 2025 Question Paper Engineering Series A

Notes · Sample Papers · Previous Year Papers · Mock Tests

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DE-2025gl a
24 printed pages
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Total Marks : 200
Question A
Time : 150 Minutes
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Candidate’s Signature Block Supervisor’s Signature
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ag For more Question Papers, Sample Papers, Notes & Syllabus visit Page 1 of 24

SECTION - 1

1. W»{k® CaO + CO , «r¢Þk fuðk «fkhLke fne þfkÞ ?
CaCO3( s ) ¾¾¾ (s ) 2( g )

(A) rðMÚkkÃkLk «r¢Þk (B) ykuÂõMkzuþLk «r¢Þk

(C) W»{eÞ rð½xLk «r¢Þk (D) yðûkuÃkLk «r¢Þk

2. ÷uz MkÕVuxLkwt Mkwºk fÞwt Au?
(A) Pb2SO4 (B) Pb(SO4)2
(C) PbSO4 (D) Pb2(SO4)3

3. Al + HCl ® AlCl3 + H 2 Lkwt Mk{íkkur÷ík Mk{efhý fÞwt Au ?

(A) Al + HCl ® AlCl3 + 2 H 2 (B) 2 Al + 6 HCl ® 2 AlCl3 + 3 H 2

(C) 2 Al + 3 HCl ® 2 AlCl3 + 2 H 2 (D) 2 Al + 4 HCl ® 3 AlCl3 + 3 H 2

4. MkkurzÞ{ nkRzÙkuõMkkRzLke ®Íf Äkíkw MkkÚkuLke «r¢Þk îkhk fE {wÏÞ LkeÃks {¤þu ?
(A) NaZnO2 (B) NaZn2O
(C) Na2ZnO2 (D) Zn(OH)2

5. fuðk «fkþLkk ykuõMkkRzLku çkurÍf ykuõMkkRz fnu Au ?
(A) yÄkíðeÞ ykuõMkkRz (B) ÄkíðeÞ ykuõMkkRz

(C) (A) yLku (B) çkLLku (D) rLkr»¢Þ ykuõMkkRz

6. Lke[uLkk{ktÚke fÞwt MktÞkusLk r{Õf ykuV {uøLkurþÞk íkhefu yku¤¾kÞ Au ?
(A) Mn(OH)2 (B) Mg(OH)2
(C) MgO (D) Mg(OH)

7. Lke[uLkk{ktÚke rðhtsLk (ç÷e®[øk) ÃkkWzhLkwt hkMkkÞrýf Mkwºk fÞwt Au ?
(A) Ca(OH)2 (B) CaOCl2
(C) Ca2OCl (D) CaCO3  2H2O

8. [{fËkh yÄkíkw Lke[uLkk{ktÚke fE Au?
(A) ykÞkurzLk (B) fkçkoLk

(C) LkkRxÙkusLk (D) çkúku{eLk

9. Lke[uLkk{ktÚke fE Äkíkw Xtzk fu økh{ Ãkkýe MkkÚku «r¢Þk fhíke LkÚke, Ãkhtíkw çkk»Ãk MkkÚku «r¢Þk fhu Au ?
(A) yuÕÞwr{rLkÞ{ (B) ÷ku¾tz

(C) ®Íf (D) ykÃku÷ çkÄks

10. Lke[uLkk{ktÚke ÄkíkwykuLke «ríkr¢Þkí{fíkkLkku fÞku ¢{ Mkk[ku Au ?
(A) Mg > Al > Zn > Fe (B) Mg > Fe > Zn > Al
(C) Fe > Zn > Al > Mg (D) Mg > Al > Fe > Zn

DE-2025 - A ] 2 [Contd.

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SECTION - 1
g l a
CaCO3( s ) ¾¾¾
® CaO( s ) + CO2( g ) , which kind of reactionais this ?
heat
1.

(A) Displacement reaction (B) Oxidation reaction

(C) Thermal decomposition reaction (D) Precipitation reaction

2. What is the formula of lead sulphate ?

(A) Pb2SO4 (B) Pb(SO4)2
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(C) PbSO4

c o m (D) Pb2(SO4)3

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m . equation of Al + HCl ® AlCl + H ? s e
a
3. Which is the balance

se l
3 2

(A) Al l+aHCl ® AlCl + 2 H
g
(B) 2 Al + 6 HCl ® 2 AlCl + 3 H ag
a
3 2 3 2

(C) 2 Al + 3 HCl ® 2 AlCl + 2 H
3 2 (D) 2 Al + 4 HCl ® 3 AlCl + 3 H 3 2

4. Which main product is obtained by reaction of sodium hydroxide with zinc metal?

(A) NaZnO2 (B) NaZn2O

(C) Na2ZnO2 (D) Zn(OH)2

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5. Which type of oxides is called basic oxide ?

(A) Non-metallic oxide
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(B) Metallic oxide

(C) (A) and (B) both
s em(D) Inactive oxide
la of magnesia?
Which of the following is known asgmilk
6.

(A) Mn(OH)
a (B) Mg(OH)
2 2

(C) MgO (D) Mg(OH)

7. Which of the following is the chemical formula of bleaching powder?

(A) Ca(OH)2 (B) CaOCl2

(C) Ca2OCl (D) CaCO3  2H2O
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8.
m Which of the following is the lustrous non-metal ?

c. o (A) Iodine .co
(B) Carbon
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(C) Nirtogen (D) Bromine

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a Which of the following metals neither reacts with cold nor hot water, but reacts with vapour ?

(A) Aluminium (B) Iron

(C) Zinc (D) All of the above

10. Which of the following is correct order of reactivity of metals ?

(A) Mg > Al > Zn > Fe (B) Mg > Fe > Zn > Al

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(C) Fe > Zn > Al > Mg (D) Mg > Al > Fe > Zn

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11. fBÃÞwxh{kt zuxkLkk MkkiÚke LkkLkk yuf{Lku .......... fnuðk{kt ykðu Au.
(A) çkkRx (B) çkex

(C) Lkeçk÷ (D) Sçke

12. fe-çkkuzo Ãkh Ctrl + Home fe ËçkkððkÚke fMkoh MS-Word{kt .......... Ãkh òÞ Au.
(A) zkuõÞw{uLxLkk ytík{kt (B) ÷kELkLke þYykík{kt

(C) ÃkuhuøkúkVLke þYykík{kt (D) zkuõÞw{uLxLke þYykík{kt

13. HTML{kt Lke[uLkk{ktÚke fE ®÷fLku MktçktrÄík (he÷uxeð) ®÷f íkhefu ðøkeof]ík fhe þfkÞ ?
(A) <a href = "http://www.blog.com/index.html">
(B) <a href = "../index.html">
(C) <a href = "http://index.html">
(D) All of the above

14. MS-Excel{kt A2, B2, C2 yLku D2 {kt Mku÷ {qÕÞkuLke fw÷ ðuÕÞw þkuÄðk {kxu ÞkuøÞ Mkqºk .......... Au.
(A) Sum (A2 : D2) (B) Sum (A2, B2, C2, D2)

(C) (A) yLku (B) çkLLku (D) WÃkh{ktÚke yuf Ãký Lknª

15. {kR¢kuMkku^x ÃkkðhÃkkuRLx «uÍLxuþLkLkk ÔÞw {uLkw{kt Lke[uLkk{ktÚke fÞku rðfÕÃk ¾kuxku Au ?
(A) xÙe ÔÞw (B) ykWx÷kRLk ÔÞw

(C) LkkuxTMk Ãkus (D) hezªøk ÔÞw

16. ÷e÷k Akuz ÃkkuíkkLkku ¾kuhkf Ãkkuíku çkLkkðu Au suLku .......... íkhefu yku¤¾ðk{kt ykðu Au.
(A) nuxÙkuxÙe^Mk (B) yuxÙkuxÙe^Mk

(C) Mku«kuxÙe^Mk (D) Mkðo¼ûke

17. .......... {kxu çkuøk rVÕxhLkku WÃkÞkuøk fhðk{kt ykðu Au.
(A) yðks «Ëq»ký ½xkzðk (B) øktËk Ãkkýe{ktÚke fkËð ½xkzðk {kxu

(C) Ëqr»kík økuMk «ðkn{ktÚke hsfýku Ëqh fhðk (D) s{eLkLkwt «Ëq»ký ½xkzðk

18. Ãk]ÚðeLke MkÃkkxeLke ytËh hnu÷e økh{eLkku WÃkÞkuøk fheLku Qòo WíÃkLLk fhðkLke «r¢ÞkLku .......... fnuðk{kt ykðu Au.
(A) Syku-Úk{o÷ Qòo (B) nkRzÙku Úk{o÷ Qòo

(C) Mkkih Qòo (D) íkhtøk Qòo

19. .......... yu yuf WÃkfhý Au su Mkkih QòoLkwt MkeÄw ðes¤e{kt YÃkktíkrhík fhu Au.
(A) ^Þwy÷ Mku÷ (B) nkRzÙkusLk Mku÷

(C) Mkku÷h yuhu (D) VkuxkuðkuÕxuRf Mku÷

20. ÃkurhMk Mk{sqíkeLkku æÞuÞ ðirïf íkkÃk{kLkLkk ðÄkhkLku Ãkqðo-ykiãkurøkf MíkhÚke .......... Lke[u hk¾ðkLkku Au.
(A) 1.0°C (B) 1.5°C
(C) 2.0°C (D) 2.5°C

DE-2025 - A ] 4 [Contd.

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11. The smallest unit of data in a computer is called a :
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(A) Byte (B) Bit ag
(C) Nibble (D) GB
12. Pressing Ctrl + Home keys on the Keyboard moves the cursor to the _______ in MS-Word.
(A) End of the document (B) Beginning of the line
(C) Beginning of the paragraph (D) Beginning of the document
13. Which of the following can be classified as a relative link in the HTML ?

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(A) <a href = "http://www.blog.com/index.html">

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(B) <a href = "../index.html">

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(C) <a href = "http://index.html">
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(D) All of the above
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14. g the total value of the cell values in A2, B2, C2 and D2 in MS-Excel, the correct formula
Toafind
is:
(A) sum (A2:D2) (B) sum (A2, B2, C2, D2)
(C) Both (A) and (B) (D) None of the above
15. Which of the following is an incorrect option in the view menu of a Microsoft Powerpoint
presentation ?
(A) Tree view (B) Outline view

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(C) Notes page
c
.are known as _______.
(D) Reading view
16. m
e (B) Autotrophs
The green plants manufacture their own food

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(A) Heterotrophs
(C) Saprotrophs (D) Omnivores
17. Bag filters are used to _______.
(A) reduce noise pollution
(B) reduce sludge from waste water
(C) remove particulate matter for a contaminated gas stream
(D) reduce soil pollution
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18. The process of producing energy by utilizing heat trapped inside the earth surface is known as
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c. o (A) Geo-Thermal energy m
_______.

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(B) Hydrothermal energy
s (D) Wave energy gl
la 19. a
(C) Solar energy

ag _______ is a device that converts solar energy directly into electricity.
(A) Fuel cell (B) Hydrogen cell
(C) Solar array (D) Photovoltaic cell
20. The goal of the Paris Agreement is to keep the increase in global temperature well below _______
above Preindustrial levels.
(A) 1.0°C (B) 1.5°C

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(C) 2.0°C (D) 2.5°C

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DE-2025 - A ]
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21. 2025{kt MkkÚkof ytfku .......... Au.

(A) 3 (B) 4
(C) 2 (D) 5

22. þqLÞ ºkwrx .......... ºkwrxLkwt WËknhý Au.
(A) ÔÞðÂMÚkík (B) yÔÞðÂMÚkík

(C) {n¥k{ (D) ÷½w¥k{

23. 1 sw÷ = .......... yøko

(A) 103 (B) 105

(C) 107 (D) 109

24. CGS «ýk÷e{kt ÃkkýeLke ½Lkíkk .......... Au.

(A) 1000 (B) 100
(C) 10 (D) 1

m
25. Mkqºk ½Lkíkk s  , {kxu ÿÔÞ{kLk m {kt «ríkþík ºkwrx 0.3% yLku rºkßÞk r {kt «ríkþík ºkwrx 0.5% nkuÞ íkku økku¤kLke
V
½Lkíkk{kt .......... «ríkþík ºkwrx nþu.
(A) 1.8 (B) 1.5
(C) 1.2 (D) 1.1

26. yuf {kR¢kur{xh M¢qLkku Ãku[ 1 mm Au. íkuLke ðíkqo¤kfkh {kÃkÃkèe Ãkh 100 fkÃkk nkuÞ íkku íkuLke ÷½w¥k{ {kÃkþÂõík þwt ÚkkÞ ?
(A) 1 mm (B) 0.1 mm
(C) 0.01 mm (D) 0.001 mm

27. hur¾Þ ðuøk{kLkLkku SI yuf{ .......... Au.
(A) Kg s / m (B) Kg m / s
(C) m s / Kg (D) Kg s m

28. fuLÿøkk{e çk¤ nt{uþk .......... íkhV ÷køku Au.
(A) fuLÿÚke Ëqh (B) MÃkþofLke rËþk{kt

(C) økríkLku ÷tçk rËþk{kt (D) fuLÿ íkhV

29. ÃkËkÚko Ãkh ÷køkíkku çkkÌk çk¤ þqLÞ nkuÞ íkku «ðuøk ..........
(A) ðÄu Au. (B) ½xu Au.

(C) þqLÞ çkhkçkh ÚkkÞ. (D) y[¤ hnu Au.

30. rºkßÞk r Lkkt ðíkwo¤{kt y[¤ ÍzÃk v Úke Vhíkk ÃkËkÚkoLkkt fkuýeÞ ðuøkLkwt Mkqºk Lke[u {wsçk ykÃke þfkÞ.
(A) v/r (B) vr
(C) vr 2 (D) vr 3

DE-2025 - A ] 6 [Contd.

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21. Number of significant digits in 2025 is _______.
g l a
(A) 3 (B) 4 a
(C) 2 (D) 5
22. Zero error is an example of _______ error.

(A) Systematic (B) Random
(C) Maximum (D) Minimum
23. 1 joule = _______ erg.
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(A) 103 (B) 105

m s e
(C) 107
s e
(D) 109
l a
24. Densitya
g l of water in CGS system is _______.
ag
(A)a1000 (B) 100
(C) 10 (D) 1

m
25. In equation density s  , if percentage error in mass m is 0.3% and for radius r is 0.5% then
V
percentage error in density of a Sphere is _______%.

(A) 1.8 (B) 1.5
m
(C) 1.2
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(D) 1. 1

26.
s em
The pitch of micrometer screw is 1 mm. There are 100 divisions on it’s circular scale. What will

la (B) 0.1 mm
be the least count of the micrometer screw.
g
(A) 1 mm a
(C) 0.01 mm (D) 0.001 mm

27. The SI Unit of linear momentum is _______.

(A) Kg s / m (B) Kg m / s
(C) m s / Kg (D) Kg s m

28. The centripetal force always acts _______.
m
m (A) Away from the centre
c. o (C) Perpendicular to the motion .co
em
(B) In tangential direction

em29. la s
(D) Towards the centre

las When external force acting on a body is zero then its accelerationgis _______.
a
ag (A) increases (B) decreases
(C) equal to zero (D) remains constant

30. The formula for angular velocity of a body moving with a constant speed v in a circle of radius
r is given by _______

(A) v/r (B) vr
(C) vr 2 (D) vr 3
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31. 10 kg ÿÔÞ{kLk yLku 9.8 m/s2 «ðuøk ðk¤ku ÃkËkÚko fux÷wt çk¤ WíÃkLLk fhu Au ?

(A) 9.8 LÞwxLk (B) 98 LÞwxLk

(C) 0.98 LÞwxLk (D) 980 LÞwxLk

32. òu 50 kg ÿÔÞk{kLk ðk¤ku yuf ÃkËkÚko 2 m rºkßÞk ðk¤k ðíkqo¤{kt 60 m/s Lkku y[¤ ÍzÃkÚke Vuhððk{kt ykðu íkku íkuLkku
fuLÿøkk{e «ðuøk fux÷ku ÚkkÞ ?
(A) 6000 m/s2 (B) 3000 m/s2

(C) 1800 m/s2 (D) 1500 m/s2

33. rðãwík ^÷õMkLkku SI yuf{ .......... Au.
(A) C2/Nm (B) Nm/C

(C) Nm/C2 (D) Nm2/C

34. rðãwíkûkuºk hu¾kyku .......... nkuÞ Au.
(A) fkÕÃkrLkf (B) ðkMíkrðf

(C) ykËþo (D) WÃkh{ktÚke yufÃký Lk®n

35. 1 fw÷tçk ðes¼kh{kt R÷uõxÙkuLMkLke MktÏÞk fux÷e nkuÞ Au?

(A) 6.25  1017 (B) 6.25  1018

(C) 6.25  1019 (D) 6.25  1020

36. fuÃkuMkexhLke çku Ã÷uxku ðå[u yðknf ÃkËkÚko {qfðk{kt ykðu íkku fuÃkuMkexhLkwt fuÃkuMkexLMk ..........
(A) ðÄu Au. (B) ½xu Au.

(C) y[¤ hnu Au. (D) þqLÞ ÚkkÞ Au.

37. òu çku ðes¼khku ðå[uLkwt ytíkh çk{ýwt fhðk{kt ykðu íkku íku{Lke ðå[uLkwt rðãwíkeÞ çk¤ .......... ÚkkÞ.
(A) yzÄwt (B) çk{ýwt

(C) [íkwÚko ¼køk (D) [kh økýwt

38. 5 , 10  yLku 15 Lkkt ºký yðhkuÄkuLku ©uýe òuzkýÚke òuzu÷k nkuÞ íkku íku{Lkku Mk{íkwÕÞ yðhkuÄLkwt {qÕÞ fux÷wt nþu ?

(A) 10  (B) 30 

(C) 20  (D) 5.5 

39. yuf{ ÿÔÞ{kLk ËeX ÃkËkÚkoLke W»{kÄkrhíkkLku íku ÃkËkÚkoLke .......... fnu Au.
(A) rðrþü W»{k (B) MkkÃkuûk W»{k

(C) Cp (D) Cv

40. 1 KCal = _______ J.

(A) 4.186 (B) 4186

(C) 41.86 (D) 418.6

DE-2025 - A ] 8 [Contd.

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31.
l a
A body having 10 kg mass and 9.8 m/s2 acceleration produces how much force ?
g
(A) 9.8 newton a
(B) 98 newton

(C) 0.98 newton (D) 980 newton

32. If an object having mass 50 kg rotated in a circle with a radius of 2 m with a constant speed of
60 m/s then what is the value of centripetal acceleration ?

(A) 6000 m/s2 (B) 3000 m/s2

m
(C) 1800 m/s2 (D) 1500 m/s2

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.co
33. The SI Unit of electric flux is _______.

e m
(A) C2/Nm
e m (B) Nm/C
l as
l
(C) Nm/C
as 2 (D) Nm2/C
ag
34. The g
a electric field lines are _______.
(A) Imaginary (B) Real

(C) Ideal (D) None of the above

35. How many electrons are in 1 coulomb charge ?

(A) 6.25  1017 (B) 6.25  1018

(C) 6.25  1019
o m (D) 6.25  1020
c
The capacitance of a capacitor _______ if an.insulating dielectric material is placed between
em
36.
two plates of it.
s
la (B) decreases
(A) increases
a g
(C) remains constant (D) becomes zero

37. If the distance between two charges is doubled then electric force between them becomes _____.

(A) half (B) double

(C) one fourth (D) four times

What is the effective value of resistance when three resistors 5 , 10  and 15  are connected
m
38.

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in series combination?
m
c. o (A) 10  (B) 30 
s e m
s em (C) 20  (D) 5.5 
g la
g la 39. Heat capacity of a body per unit mass is known as _______. a
a (A) Specific heat (B) Relative heat

(C) Cp (D) Cv

40. 1 KCal = _______ J.

(A) 4.186 (B) 4186

m .
(C) 41.86 (D) 418.6

.co s e m
DE-2025 - A ]
s em 9 P.T.O.
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 9 of 24

41. fk[Lkk {kuxk xqfzkLku Ãknu÷kt økh{ fheLku ÃkAe íkuLku Xtzku Ãkzðk Ëuðk{kt ykðu íÞkhu Xtzku ÚkÞk ÃkAe íku{kt yuf ríkhkz Ãkzu Au.
ykLkwt yuf Mkt¼rðík fkhý .......... Au.
(A) Wå[ øk÷Lk®çkËw (B) Wå[ W»{kðknõíkk

(C) Wå[ rðrþü W»{k (D) ykuAe W»{kðknõíkk

42. ßÞkhu Wf¤u÷k ÃkkýeLku W»{k ykÃkðk{kt ykðu Au. íÞkhu ÃkkýeLkwt íkkÃk{kLk .......... Au.
(A) ðÄu (B) ½xu

(C) y[¤ hnu (D) WÃkhLkk{ktÚke yufÃký Lk®n

43. 37°C = _______ °F.
(A) 98.6 (B) 98.8
(C) 97.6 (D) 96.8

44. W»{k ðknõíkk ytfLkku SI yuf{ .......... Au.
(A) J / m K (B) N / m K
(C) W / m K (D) m K / W

45. ©kÔÞ æðrLkLke ykð]r¥k .......... huLs{kt nkuÞ Au.
(A) 20 Hz - 10 KHz (B) 20 Hz - 20 KHz
(C) 10 Hz - 10 KHz (D) 10 Hz - 20 KHz

46. þqLÞðfkþ{kt «fkþLke ÍzÃk .......... nkuÞ Au.
(A) 3  105 m/s (B) 3  106 m/s
(C) 3  107 m/s (D) 3  108 m/s

47. 20 Hz ykð]r¥k Ähkðíkk íkhtøkLkku ykðíkofk¤ .......... ÚkkÞ.
(A) 0.05 sec (B) 0.5 sec
(C) 5 sec (D) 50 sec

48. ÷uMkh ytíÞík .......... Au.
(A) yuf rËþeÞ (B) furLÿík

(C) MkwMktçkØ yLku W¥kursík (D) WÃkhLkkt çkÄks

49. yuf Mk¼køk]nLkwt fË 5000 m3 Au. íkuLke MkÃkkxeyku ðzu Úkíkwt fw÷ þku»ký 900 O.W.U. Au. íkku «rík½ku»k Mk{Þ þkuÄku.
(A) 8.094 (B) 0.729
(C) 0.894 (D) 1.003

50. òu n1 yLku n2 yLkw¢{u fkuh yLku õ÷uzªøkLkk ð¢e¼ðLkktfku nkuÞ íkku ykuÂÃxf÷ VkEçkhLkku LÞw{urhf÷ yuÃk[ohLkwt Mkqºk
.......... Au.

(A) n22  n12 (B) n12  n22

(C) n2  n1 (D) n1  n2

DE-2025 - A ] 10 [Contd.

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m .co

m .co s e m
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41.
la
A big piece of glass is first heated and then is allowed to cool. On cooling down, a crack is
g
(A) High melting point
a
developed in it. One of the possible reasons for this is _______.
(B) Large thermal conductivity

(C) Large specific heat (D) Small thermal conductivity
42. When heat is given to boiling water, the temperature of water _______.
(A) increases (B) decreases

(C) remains constant (D) None of the above
m
43. 37°C = _______ °F.
m .co
(A) 98.6 .co (B) 98.8
s e m
s em l a
a ag
(C) 97.6 (D) 96.8
The gSIl Unit of coefficient of thermal conductivity is _______.
44.
a
(A) J / m K (B) N / m K

(C) W / m K (D) m K / W
45. Audible waves have a frequency range from _______.

(A) 20 Hz - 10 KHz (B) 20 Hz - 20 KHz

(C) 10 Hz - 10 KHz (D) 10 Hz - 20 KHz
m
46. The speed of light in a vacuum is _______.
.co
(A) 3  105 m/s
s em(B) 3  10 m/s 6

(C) 3  10 m/s
7
g la (D) 3  10 m/s 8

47.
a
What is the periodic time of a wave having frequency of 20 Hz ?

(A) 0.05 sec (B) 0.5 sec

(C) 5 sec (D) 50 sec
48. LASER is an extremely _______ radiation.

(A) Unidirectional (B) Focused

o m
49. o
(C) Coherent and Stimulated (D) All of above
c
m A volume of an auditorium is 5000 m . The total absorption by the surfacesmis.900 O.W.U. Then
c. calculate 3

s e
e m reverberation time.
l a
las (A) 8.094 (B) 0.729
a g
ag (C) 0.894 (D) 1.003
50. If n1 and n2 are refractive indices of core and cladding resp. Then what is the formula for
numerical aperture for optical fiber?

(A) n22  n12 (B) n12  n22

(C) n2  n1 (D) n1  n2
m .
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DE-2025 - A ]
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 11 of 24

SECTION - 2

51.
d e
dx
 
x + e x  e e = ...........

(A) e x (B) ex e + e x

(C) ex e –1 + e x (D) ex e –1 + e x – e e –1

log sin x  = ...........
d
52.
dx

(A) cot x (B) – cot x

(C) tanx (D) – tanx

dy
53. òu x + y = –2 nkuÞ íkku = .......... .
dx

(A) 0 (B) 1

(C) 2 (D) –1

1
54.  e x dx = .......... + C

(A) e – x (B) – e – x

(C) e x (D) – e x

3
55.  5 x 4 dx = .......... + C

3 12
(A) 3 (B)
5x 5x 5

3 1
(C) 3 (D)
20x 5x 3

4 x  10
56.  x 2  5 x + 1 dx = .......... + C

(A) 2log 2 x  5 (B) 2log x  5 x + 1
2

2 2
(C) log 2 x  5 (D) log x 2  5 x + 1

DE-2025 - A ] 12 [Contd.

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SECTION - 2
g l a
a
51.
d e
dx
 
x + e x  e e = _______.

(A) e x (B) ex e + e x

(C) ex e –1 + e x (D) ex e –1 + e x – e e –1

m
.co
log sin x  = _______.
d
m
52.

.co
dx

e m
(A) cot x
e m (B) – cot x
l as
l as ag
a g
(C) tanx (D) – tanx

dy
53. If x + y = –2 then = _______.
dx

(A) 0 (B) 1

(C) 2 (D) –1

m
.co
1
54.  e x dx = _______ + C
s em
(A) e – x
g la (B) – e –x

(C) e x
a (D) – e x

3
55.  5 x 4 dx = _______ + C

3 12
(A) (B)
m
3
5x 5x 5

m
c. o (C) 20x3 m.co
1
s e
em la
3 (D)
5x 3

las ag
ag 56.
4 x  10
 x 2  5 x + 1 dx = _______ + C

(A) 2log 2 x  5 (B) 2log x  5 x + 1
2

2 2
(C) log 2 x  5 (D) log x 2  5 x + 1
m .
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DE-2025 - A ]
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 13 of 24



 x sin x dx = ...........
2
57.


(A) 0 (B) 1

(C) –1 (D) –2

log125
58. = ...........
log 5

(A) log125 – log5 (B) log120

(C) 25 (D) 3

59. log2 + 2log3 = ...........

(A) 2log6 (B) log8

(C) log18 (D) log12

60. «Úk{ Ãkkt[ Éý ÃkqýkOf MktÏÞkykuLkku {æÞf .......... ÚkkÞ.
(A) 15 (B) –15

(C) 3 (D) –3

tan x  cos ecx
61. = .......... .
 sin x  cot x

(A) 0 (B) -1

(C) -2 (D) -3

 3 1 2
 
62. ©urýf  1 0 5  yu .......... ©urýf Au.
2 5 4 

(A) yMkk{kLÞ (B) Mktr{ík

(C) rðMktr{ík (D) rðfýo

 5
63. òu A   3 1 2 yLku B   0  nkuÞ íkku AB = .......... ÚkkÞ.
 4 

(A)  2 1 6 (B)  15 0 8

(C) 7  (D) yuf Ãký Lk®n

DE-2025 - A ] 14 [Contd.

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m
m .co

m .co s e m
se 
g l a
 x sin x dx = _______. a
2
57.


(A) 0 (B) 1

(C) –1 (D) –2

log125
58. = _______.
m
log 5

m .co
.co m
(A) log125 – log5 (B) log120

s e
(C) 25
s em (D) 3
l a
a = _______.
log2 + l2log3
g ag
a
59.

(A) 2log6 (B) log8

(C) log18 (D) log12

60. The mean of the first five negative integers is _______.

(A) 15 (B) –15

m
.co
(C) 3 (D) –3

tan x  cos ecx
s em
la
61. = _______.
 sin x  cot x

ag
(A) 0 (B) –1

(C) –2 (D) –3

 3 1 2
1 0 5
62. The matrix   is a _______ matrix.
2 5 4 
m
m (A) Singular
c. o (C) Skew - symmetric
(B) Symmetric
m.co
s e
s em (D) Diagonal
g la
g la a
a 63.
5
If A   3 1 2 and B   0  then AB = _______.
 4 

(A)  2 1 6 (B)  15 0 8

(C) 7  (D) None
m .
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DE-2025 - A ]
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 15 of 24

4 5
64. òu A  2 3 nkuÞ íkku A–1 = .......... .
 

 3 5 1  3 5
(A)   2  2 4 
(B)
2 4

1  4 5 1 3 5
(C)   (D)  
2  2 3  2  2 4 

65. 225° = .......... hurzÞLk

3 5
(A) (B)
4 4

7 9
(C) (D)
4 4

2
66. òu sin   nkuÞ íkku cot  = ...........
5

1
(A) 1 (B)
2

1
(C) 2 (D)
5

67. cos(3 + 4x) Lkku {wÏÞ ykðíko{kLk = ..........

 
(A) (B) 
4 4

 
(C) (D) 
2 2

68. iˆ  2 ˆj  2kˆ = .......... .

(A) 3 (B) – 3

(C)  3 (D) 9

DE-2025 - A ] 16 [Contd.

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se 4 5
g l a
64. If A    then A–1 = _______.
 2 3 a
 3 5 1  3 5
(A)   (B) 
2 4 2  2 4 

1  4 5 1 3 5
(C)  
2  2 3 
(D)  
2  2 4  m
c o m m .co
225° = _______ .radian. s e
em l a
65.

las ag
3g
(A)a
5
(B)
4 4

7 9
(C) (D)
4 4

2
66. If sin   then cot  = _______.
m
.co
5

s em 1
(A) 1
g la (B) 2
a
1
(C) 2 (D)
5

67. Principal period of cos(3 + 4x) = _______.

m
.co
 
m (B) 

.co
(A)
m
4 4

m s e
s e g la
la
 
g
(C) (D)  a
a 2 2

68. iˆ  2 ˆj  2kˆ = _______.

(A) 3 (B) – 3

(C)  3 (D) 9
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DE-2025 - A ]
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 17 of 24

69. iˆ  ˆj   kˆ = .......... .
(A) î (B) k̂

(C) 0 (D) 1

70. òu hu¾kyku x – 2y = 3 yLku 3y + px – 1 = 0 ÃkhMÃkh ÷tçk nkuÞ íkku p = .......... ÚkkÞ.

3 3
(A) (B) 
2 2

(C) 6 (D) – 6

71. ðíkwo¤ (x + 3)2 + y2 – 2 = 0 Lkwt fuLÿ .......... Au.

(A) (3, 0) (B) (0, 3)

(C) (–3, 0) (D) (0, –3)

72. òu f ( x )  e log x nkuÞ íkku f (1) = .......... .

(A) 0 (B) 1

(C) e (D) – e

sin 2 x
73. lim = ...........
x ®0 tan x

1
(A) 1 (B)
2

(C) 2 (D) 3

8n
 5
74. lim  1 +  = _______.
n®  2n 

(A) e13 (B) e4

(C) e10 (D) e20

d  
75.  log 5 + sin  = ...........
dx  3

1 
(A) 0 (B) + cos
5 3

1  
(C)  cos (D) cos
5 3 3

DE-2025 - A ] 18 [Contd.

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m .co s em
se 69. iˆ  ˆj   kˆ = _______. g l a
a
(A) î (B) k̂

(C) 0 (D) 1

70. If the lines x – 2y = 3 and 3y + px – 1 = 0 are perpendicular to each other then p = _______.

3 3
(B) 
m
.co
(A)
2 2
m
(C) 6
m .co (D) – 6
s e m
s e l a
a ag
The centre of the circle (x + 3)2 + y2 – 2 = 0 is _______.
gl0)
71.

(A)a(3, (B) (0, 3)

(C) (–3, 0) (D) (0, –3)

72. If f ( x )  e log x then f (1) = ________.

(A) 0 (B) 1

(C) e
m
(D) – e

m .co
73. lim
sin 2 x
= _______.
s e
x ® 0 tan x
l a
ag 1
(A) 1 (B)
2

(C) 2 (D) 3

8n
 5
74. lim  1 +  = _______.
n®  2n 
m
m
c. o (C) e
(A) e13 (B) e4
m.co
s e
em la
10 (D) e20
s
la 75. ag
ag d 

dx 

log 5 + sin  = _______.
3

1 
(A) 0 (B) + cos
5 3

1  
(C)  cos (D) cos
5 3 3
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DE-2025 - A ]
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 19 of 24

76. The talented singer danced quickly. (Identify the adverb)

(A) talented (B) quickly

(C) danced (D) singer

77. The captain along with ten players _______ arrived at the stadium. (Select the correct option)

(A) has (B) have

(C) is (D) are

78. None of the products _______ up to the mark, so we returned them all. (Select the correct
option)

(A) is (B) are

(C) was (D) were

79. There is a church _______ the lake. (Select the correct option)

(A) over (B) on

(C) between (D) above

80. He _______ to the gym every morning before work. (Select the correct option)

(A) goes (B) went

(C) is going (D) go

81. Select the correct spelling.

(A) Fahrenhit (B) Ferrenhit

(C) Fahrenheit (D) Fahrenheat

82. Select the correct spelling.

(A) Inconvenience (B) Inconveninse

(C) Inconvinience (D) Inconviniance

83. Identify the correct sentence.

(A) The criminals arrested by police.

(B) The police are arrested the criminals.

(C) The police were arrested the criminals.

(D) The police arrested the criminals.

84. Identify the correct sentence.

(A) Shreya is tired as she had worked since 7 o'clock.

(B) Shreya is tired as she has been working since 7 o'clock.

(C) Shreya was tired as she has worked since 7 o'clock.

(D) Shreya is tired as she working since 7 o'clock.

DE-2025 - A ] 20 [Contd.

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85. Identify the correct sentence.
g l a
(A) The father purchased a vividly illustrated children’sadictionary for his daughter.
(B) The father purchased a child’s vividly illustrated dictionary for her daughter.
(C) The father purchased a children’s vividly illustrated dictionary for his daughter.
(D) The father purchased an illustrated child’s vivid dictionary for his daughter.
* Read the following passage carefully and answer the questions: (Question No. : 86 to 90)

m
The ancient stepwell, Chand Baori, descended into the earth like a forgotten

m .co
dream. Its geometric steps, a thousand precise cuts into the Sandstone, spiraled down

.co m
towards the emerald depths of the water. The air within its shadowed walls was cool, a

m s e
a
welcome respite from the scorching Rajasthani sun. Villagers, their colourful turbans and

s e l
a ag
saris vibrant against the stone, gathered at the upper levels, drawing water in earthen

g l
pots. Legends whispered of a hidden chamber deep within the stepwell, a place where the
a
spirits of the desert dwelled, guarding secrets of forgotten Kings.

A traveling musician, his sitar echoing through the vast space, played haunting
ragas, his melodies blending with the gentle splash of water. A lone scholar, his spectacles
perched on his nose, meticulously studied the intricate carvings on the walls, searching
for clues to the stepwell’s mysterious origins and the stories etched into its sandstone
heart.

m
86. What was the purpose of the steps in Chand Baori ?
(A) To provide seating for spectators
.co
(B) To create a maze for tourists
s em
(C) To allow access to the water deepla
a g below
(D) To form a decorative pattern
87. The “cool shadowed walls” of the stepwell provide :
(A) A place for loud celebrations. (B) A relief from the desert heat.
(C) A place for modern art display. (D) A site for industrial activity.
88. According to legends, what was hidden deep within the stepwell ?
(A) A treasure vault (B) Sacred water
o m
m (D) A chamber of desert spirit.c
co The phrase “forgotten dream” used to describe Chand Baori suggestss:em
(C) A secret passage to the fort
.
em a
89.
s g l
g la (A) The stepwell’s historical significance and potential
a
obscurity.

a (B) The stepwell’s modern architectural design.
(C) The stepwell’s role as a tourist attraction.
(D) The stepwell’s frequent use by villagers.
90. What was the scholar searching for in the carvings ?
(A) Precious gems (B) Ancient map of desert
(C) Clues to stepwell’s origin (D) Hidden doorways
m .
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DE-2025 - A ]
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a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 21 of 24

91. While communicating, the process of understanding the original idea of the message is called
_______.

(A) Decoding (B) Feedback

(C) Encoding (D) Transmission

92. _______ is the study of body language and its effect on communication including facial expression,
gestures, etc.

(A) Proxemics (B) Chronemics

(C) Paralanguage (D) Kinesics

93. Which of the following is not an example of verbal communication ?

(A) A manager giving instructions to workers orally.

(B) A man shaking hand with a foreigner.

(C) A student writing a letter to the principal.

(D) An oldman reading a news paper.

94. What is common result of socio-cultural barrier to communication ?

(A) Enhanced comprehension. (B) Improved content clarity.

(C) Misinterpretation of intent. (D) Enriched social connection.

95. Factors such as person’s emotions, anxiety, stress and fear can form_______ barrier to
communication.

(A) Personal Barrier (B) Psychological Barrier

(C) Physical Barrier (D) Neurological Barrier

96. A letter of adjustment is generally written in response to _______.

(A) letter of inquiry (B) request letter

(C) order letter (D) complaint letter

97. Which of the following statement is correct about letter of inquiry ?

(A) written to offer a product.

(B) written to seek details about product or service.

(C) written to start investigation.

(D) written to raise a complaint.

DE-2025 - A ] 22 [Contd.

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98.
la
Which of the following is an essential part of business letter ?
g
(A) Executive summary
a
(B) Identification initials

(C) Inside address (D) Carbon copy notation

99. Which of the following parts is used to take a courteous leave from a letter ?

(A) Greetings (B) Salutation
m
m .co
.co
(C) Complimentary close (D) Enclosure

e m
e m l as
s
100. Give the full form of ‘PS’ used in letter writing.

g l a ag
a
(A) Please (B) Post Service

(C) Personnel Service (D) Post Script

m
m .co
s e
l a
ag

m
m .co
m .co s e m
s e g la
g la a
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