CBSE Class 12 Auto Shop and Repair and Practice Question Paper 2019

SET-4
Series BVM H$moS> Z§.
Code No. 108
amob Z§. narjmWu H$moS >H$mo CÎma-nwpñVH$m Ho$ _wI-n¥ð >na
Roll No. Adí` {bIo§ &
Candidates must write the Code on the
title page of the answer-book.

 H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV n¥ð> 8 h¢ &
 àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS >Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na {bI| &
 H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _| >31 àíZ h¢ &
 H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go nhbo, àíZ H$m H«$_m§H$ Adí` {bI| &
 Bg àíZ-nÌ H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m g_` {X`m J`m h¡ & àíZ-nÌ H$m {dVaU nydm©• _|
10.15 ~Oo {H$`m OmEJm & 10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db àíZ-nÌ H$mo n‹T>|Jo Am¡a
Bg Ad{Y Ho$ Xm¡amZ do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo &
 Please check that this question paper contains 8 printed pages.
 Code number given on the right hand side of the question paper should be
written on the title page of the answer-book by the candidate.
 Please check that this question paper contains 31 questions.
 Please write down the Serial Number of the question before
attempting it.
 15 minute time has been allotted to read this question paper. The question
paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the
students will read the question paper only and will not write any answer on
the answer-book during this period.

Am°Q>mo em°n [ano`a EÊS> à¡pŠQ>g
(g¡ÕmpÝVH$)
AUTO SHOP REPAIR AND PRACTICE
(Theory)

{ZYm©[aV g_` : 2 1 KÊQ>o A{YH$V_ A§H$ : 50
2
1
Time allowed : 2 hours Maximum Marks : 50
2

108 1 P.T.O.

gm_mÝ` {ZX}e :
(i) Bg àíZ-nÌ _| 31 àíZ em{_b h¢ {OZ_| go Aä`Wu H$mo {g\©$ 23 àíZ H$aZo H$s Oê$aV
h¡ &
(ii) àíZ-nÌ Xmo IÊS>m| _| {d^º$ h¡ &
IÊS> H$
(H$) ~hþ{dH$ënr` àíZ /[aº ñWmZ ^[aE /grYo àíZ : Hw$b 12 àíZ em{_b h¢ Omo
1 – 1 A§H$ Ho$ h¢ & BZ_| go {H$Ýht 10 àíZm| Ho$ CÎma Xr{OE &

(I) A{V bKw CÎmar` àíZ : BZ_| Hw$b 7 àíZ em{_b h¢ & àË`oH$ Ho$ 2 A§H$ h¢ & BZ_|
go {H$Ýht 5 àíZm| Ho$ CÎma Xr{OE &
(J$) bKw CÎmar` àíZ : BZ_| Hw$b 7 àíZ em{_b h¢ & àË`oH$ Ho$ 3 A§H$ h¢ & BZ_| go
{H$Ýht 5 àíZm| Ho$ CÎma Xr{OE &
IÊS> I
XrK© CÎmar` /{Z~ÝYmË_H$ àíZ : BZ_| Hw$b 5 àíZ em{_b h¢ & àË`oH$ Ho$ 5 A§H$ h¢ & BZ_|
go {H$Ýht 3 àíZm| Ho$ CÎma Xr{OE &
General Instructions :
(i) This questions paper contains 31 questions, out of which the candidate
needs to attempt only 23 questions.

(ii) Question paper is divided into two sections.
SECTION A

(a) Multiple choice questions / Fill in the blanks/Direct questions :
contains total 12 questions of 1 mark each. Answer
any 10 questions.

(b) Very short answer type questions : contains total 7 questions of
2 marks each. Answer any 5 questions.

(c) Short answer type questions : contains total 7 questions of 3 marks
each. Answer any 5 questions.
SECTION B

Long answer / Essay type questions : contains total 5 questions of 5 marks
each. Answer any 3 questions.

108 2

IÊS> H$
SECTION A

{H$Ýht Xg àíZm| Ho$ CÎma Xr{OE & 110=10
Answer any ten questions.

1. àË`oH$ Jm‹S>r Ho$ gmW Jm‹S>r ~ZmZo dmbr H$ånZr H$m ‘‘g{d©g _¡ZwAb’’ hmoVm h¡, Omo XoVm h¡ 1
(H$) _aå_V H$m {dñV¥V VarH$m
(I) ~oH$ma H$s OmZH$mar
(J) Jm‹S>r H$mo R>rH$ àH$ma go aIZo Ho$ {bE _yb^yV MaU
(K) Cn`w©º$ _| go H$moB© Zht
Every vehicle has a ‘‘Service Manual’’ of the manufacturer that gives

(a) Detailed repair procedure

(b) Useless information

(c) Basic steps for good upkeep of the vehicle

(d) None of the above

2. Jm‹S>r IarXVo g_` àË`oH$ J«mhH$ H$mo Jm‹S>r Ho$ gmW ‘‘g{d©g _¡ZwAb’’ Xr OmVr h¡ 1
(H$) _wµâV _|
(I) N>nr hþB© H$s_V boH$a
(J) N>nmB© H$s XþJwZr H$s_V boH$a
(K) AmYr H$s_V boH$a
At the time of purchasing the vehicle, the ‘‘Service Manual’’ is given to
each purchaser with the vehicle

(a) Free of cost
(b) By taking printed price

(c) By taking double the printed price

(d) By taking half price

108 3 P.T.O.

3. ‘‘[adoQ>’’ ~Zr hmoVr h¡ 1
(H$) _¥Xþ BñnmV H$s (I) Vm±~o H$s
(J) nrVb H$s (K) Cn`w©º$ g^r
‘‘Rivet’’ is made of
(a) Mild steel (b) Copper
(c) Brass (d) All of the above

4. ‘‘[adoQ> ÁdmBÝQ>>’’ go ~Zo T>m±Mo H$mo AbJ-AbJ H$aZo na 1
(H$) [adoQ> Iam~ hmo OmVo h¢ &
(I) T>m±Mm VWm [adoQ> XmoZm| ˜am~ hmo OmVo h¢ &
(J) T>m±Mm ˜am~ hmo OmVm h¡ &
(K) Cn`w©º$ _| go Hw$N> ^r Zht hmoVm h¡ &
On dismantling the ‘‘Rivet-Jointed’’ structure
(a) Rivet damage takes place.
(b) Structure and rivet are both damaged.
(c) Structure damage takes place.
(d) None of the above happens.

5. ‘‘H$sµO Am¡a H$m°Q>g©’’ hmoVo h¢ 1
(H$) ñWm`r \$mñQ>Za (I) AñWm`r \$mñQ>Za
(J) AY©-ñWm`r \$mñQ>Za (K) Cn`w©º$ _| go H$moB© Zht
‘‘Keys and cotters’’ are
(a) Permanent fasteners (b) Temporary fasteners
(c) Semi-permanent fasteners (d) None of the above

6. ‘‘S>oßW JoµO’’ H$m H$m`© hmoVm h¡ 1
(H$) D±$MmB© _mnZm (I) JhamB© _mnZm
(J) Mm¡‹S>mB© _mnZm (K) Cn`w©º$ _| go H$moB© Zht
The function of Depth Gauge is
(a) To measure height (b) To measure depth
(c) To measure width (d) None of the above

108 4

7. H$ma Ho$ n¡Zb _| Am`o hþE S>¡ÝQ> H$mo R>rH$ {H$`m OmVm h¡ 1
(H$) hWm¡‹S>o VWm S>m°br H$s ghm`Vm go
(I) Ho$db hWm¡‹S>o H$s ghm`Vm go
(J) {nH$ hWm¡‹S>o H$s ghm`Vm go
(K) Cn`w©º$ _| go H$moB© Zht
The dent of the car panel is repaired
(a) with the help of hammer and dolly
(b) with the help of hammer only
(c) with the help of pick hammer
(d) None of the above

8. ‘‘Q>m°H©$ H$ZdQ>©a’’ H$s n§I{‹S>`m| H$s AmH¥${V hmoVr h¡ 1
(H$) dJm©H$ma (I) JmobmH$ma
(J) MnQ>r (K) dH«$mH$ma
The blades in a ‘‘Torque Converter’’ have a shape which is
(a) Square (b) Round
(c) Flat (d) Curved

9. ‘‘Q>m°H©$ H$ZdQ>©a’’ _| A{YH$V_ ‘‘Q>m°H©$ JwUO AZwnmV’’ bJ^J hmoVm h¡ 1
(H$) 2·5 (I) 10
(J) 25 (K) 100
The maximum ‘‘Torque Multiplication Ratio’’ in a ‘‘Torque Converter’’ is about
(a) 2·5 (b) 10
(c) 25 (d) 100

10. {H$gr ^r ‘‘~¡Q>ar’’ H$m ‘‘dmoëQ>oO’’ {Z^©a H$aVm h¡ 1
(H$) ~¡Q>ar _| bJo hþE gobm| H$s g§»`m na
(I) ~¡Q>ar _| bJr hþB© ßboQ>m| H$s g§»`m na
(J) ~¡Q>ar _| bJr hþB© BboŠQ´>mobmBQ> H$s {d{eîQ> J«¡{dQ>r na
(K) Cn`w©º$ _| go H$moB© Zht
The ‘‘Voltage’’ of any ‘‘Battery’’ depends upon the
(a) Number of cells used in the battery
(b) Number of plates used in the battery
(c) Specific gravity of electrolyte used in the battery
(d) None of the above

108 5 P.T.O.

11. ‘‘boS> E{gS> ~¡Q>[a`m|’’ _| à`wº$ hmoZo dmbm ‘‘BboŠQ´>mobmBQ>’’ EH$ Kmob hmoVm h¡ 1
(H$) nmZr VWm gëâ`y[aH$ E{gS> H$m
(I) nmZr VWm HCl$ E{gS> H$m
(J) nmZr VWm HNO3 E{gS> H$m
(K) Cn`w©º$ _| go H$moB© Zht
The ‘‘Electrolyte’’ used in ‘‘Lead Acid Batteries’’ is a solution of
(a) Water and Sulphuric Acid
(b) Water and HCl Acid
(c) Water and HNO3 Acid
(d) None of the above

12. ‘‘~¡Q>ar H$ÝQ>oZa’’ ~Zm`m OmVm h¡ 1
(H$) H$R>moa (hmS>©) a~a H$m
(I) {~Qw>{_Zg H$m
(J) nrVb H$m
(K) Cn`w©º$ _| go (H$) AWdm (I) Ûmam
The ‘‘Battery container’’ is made of
(a) Hard Rubber
(b) Bituminous
(c) Brass
(d) (a) or (b) of the above

{H$Ýht 5 àíZm| Ho$ CÎma Xr{OE & 25=10
Attempt any 5 questions.

13. ‘‘bm°H$ ZQ>’’ H$m Š`m H$m`© hmoVm h¡ ? 2
What is the function of ‘‘Lock Nut’’ ?

14. ‘‘µ\$sba JoO’’ H$m Š`m H$m`© hmoVm h¡ ? 2
What is the function of ‘‘Feeler Gauge’’ ?

15. ‘‘h¡ëna pñà¨J’’ _| bJo ‘‘e¡H$b’’ H$m Š`m H$m`© hmoVm h¡ ? 2
What is the function of ‘‘Shackle’’ mounted in ‘‘Helper Spring’’ ?

108 6

16. ‘‘ñHy$Q>a’’ H$s ‘‘h¡S>bmBQ>’’ H¡$go {\$Q> H$s OmVr h¡ ? 2
How is the ‘‘Headlight’’ of a ‘‘Scooter’’ fitted ?

17. Am°Q>mo_mo~mBbm| _| ‘‘nmaofU’’ H$m Š`m H$m`© hmoVm h¡ ? 2
What is the function of ‘‘Transmission’’ in Automobiles ?

18. ‘‘ñQ>m{Q>ªJ _moQ>a’’ H$m Š`m H$m`© h¡ ? 2
What is the function of ‘‘Starting Motor’’ ?

19. ‘‘Am°Q>mo_mo~mBb {dÚwV² àUm{b`m|’’ H$s _w»` Mma ‘‘Cn-àUm{b`m|’’ Ho$ Zm_ {b{IE & 2
Write the names of four main ‘‘Sub-systems’’ of ‘‘Automobile Electrical
Systems’’.

{H$Ýht 5 àíZm| Ho$ CÎma Xr{OE & 35=15
Attempt any 5 questions.

20. ‘‘_mBH«$mo_rQ>a’’ H$m ñdÀN> {MÌ ~ZmH$a BgHo$ ^mJm| Ho$ Zm_ {b{IE & 3
Make a neat sketch of ‘‘Micrometer’’ and write the names of its parts.

21. ‘‘Q>m°agZ ~ma’’ H$m ñdÀN> {MÌ ~ZmH$a BgHo$ _w»` ^mJm| Ho$ Zm_ {b{IE & 3
Make a neat sketch of ‘‘Torsion Bar’’ and write the names of its main
parts.

22. `{X AmnH$s Jm‹S>r H$m B§OZ ‘‘Amoda hrQ>’’ hmoVm h¡, Vmo g§jon _| BgHo$ H$maU VWm CnMma
g_PmBE & 3
If the engine of your vehicle is ‘‘over heated’’, then explain in brief its
causes and remedies.

23. ‘‘{J`a ~m°Šg’’ {H$VZo àH$ma Ho$ hmoVo h¢ ? CZHo$ Zm_ {b{IE & 3
What are the types of ‘‘Gear Boxes’’ ? Write their names.

24. ‘‘OoZoaoQ>a’’ Am¡a ‘‘AëQ>aZoQ>a’’ _o| Š`m AÝVa hmoVm h¡ ? 3
What is the difference between ‘‘Generator’’ and ‘‘Alternator’’ ?

25. ‘‘H«¢$qH$J _moQ>a’’ H$m Š`m H$m`© h¡ ? 3
What is the function of ‘‘Cranking Motor’’ ?

26. ‘‘ñnmH©$ ßbJ’’ H$m Š`m H$m`© h¡ ? 3
What is the function of ‘‘Spark Plug’’ ?

108 7 P.T.O.

IÊS> I
SECTION B

{H$Ýht 5 àíZm| Ho$ CÎma Xr{OE & 35=15
Attempt any 5 questions.

27. ‘‘S>m`b JoO’’ H$m ñdÀN> {MÌ ~ZmH$a BgH$s H$m`©{d{Y H$m dU©Z H$s{OE & 5
Make a neat sketch of ‘‘Dial Gauge’’ and describe its working.

28. ‘‘hmBS´>mo_rQ>a’’ H$m EH$ ñdÀN> {MÌ ~ZmH$a BgHo$ _w»` ^mJm| Ho$ Zm_ {b{IE & 5
Make a neat sketch of ‘‘Hydrometer’’ and write the names of its main
parts.

29. ‘‘Q>obrñH$mo{nH$ em°H$ EãOm°~©a’’ H$m ñdÀN> {MÌ ~ZmH$a BgH$s H$m`©{d{Y H$mo g_PmBE & 5
Explain the working of ‘‘Telescopic Shock Absorber’’ with help of neat
sketch.

30. ‘‘Q>m`a [a_yda’’ H$m EH$ ñdÀN> {MÌ ~ZmH$a BgHo$ {d{^Þ ^mJm| Ho$ Zm_ {b{IE & 5
Make a neat sketch of ‘‘Tyre Remover’’ and write the names of its various
parts.

31. ‘‘`y{Zdg©b ÁdmBÝQ>>’’ H$m EH$ ñdÀN> {MÌ ~ZmH$a BgH$s H$m`©{d{Y H$mo {dñVmanyd©H$
g_PmBE & 5
Make a neat sketch of ‘‘Universal Joint’’ and explain its working in detail.

108 8