ias - civil-engineering_2 - 2012

8/18/2019 Ias - Civil-Engineering_2 - 2012

http://slidepdf.com/reader/full/ias-civil-engineering2-2012 1/24

C S t M I

EXA M 2 0 11

- -

SI. No.

F-DTN-M-DJWB

CIVIL ENGINEERING

Paper II

Time Allowed : Three Hours

Maximum Marks : 300

INSTRUCTIONS

Each question is printed both in Hindi and in English.

Answers must be written in the medium specified in the

Admission Certificate issued to you, which must be stated

clearly on the cover of the answer-book in the space

provided for the purpose. No marks will be given for the

answers written in a medium other than that specified in

the Admission Certificate.

Candidates should attempt Question Nos. 1 and 5 which

are compulsory, and any three of the remaining questions

selecting at least one question from each Section.

The number of marks carried by each part of a question is

indicated against each.

Notations/terms used have their usual meanings, unless

otherwise indicated.

If any data is considered insufficient, assume suitable

value and indicate the same clearly.

Provide diagrams in the answer-book wherever necessary.

A graph sheet is attached to this question paper, which

may be detached and used, if required. The graph sheet is

to be securely fastened to the answer-book.

Important : Whenever a Question is being attempted, all

its parts/sub-parts must be attempted contiguously. This

means that before moving on to the next Question to be

attempted, candidates must finish attempting all parts/

sub-parts of the previous Question attempted. This is to

be strictly followed.

Pages left blank in the answer-book are to be clearly

struck out in ink. Any answers that follow pages left blank

may not be given credit.

S Z 1 7 7 1-

011 EF T frc7

e f <

7

-cri Prei

C R

- Eg VI

tl



Section 'A'

1. (a)

i) Which building block/s you will like to

use for a sound and thermal proofing of a

studio and why ?

(ii)

Natural/Mechanical/ A.C. — Which cir-

culation and cooling system is best suited

for our country and why ?

(iii)

Which sampling procedure/principle you

would recommend for quality control of

R.C.C. work of a mass housing project

and why ? Serial/Grid/random ?

(iv)

Resource allocation and levelling will

completely upset and change the

optimum time schedule as obtained by

crashing of network based on costs only.

Comment.

(b) (i) Which cement will you recommend for

— mass concrete

—

low permeability concrete

—

high strength concrete ?

(ii) Which type of cement concrete you

will recommend for 'blast resistance

purpose' and why ?

F-DTN-M-DJWB

Contd.)



1.

e

w 4 9

-

w/491 chl Burr taft utrr . thu i

1 ; 1

w

-

t4 *

. t ‘L I =1 w i liT 4 )*.11

aril arl

-

t 9441 ?

7ilk

-

r-trd*/*fi*/

iiihn th tiatul

l

itra

t ial 1 1 9 -

T U T Z S T t 34 T q 4 1 ?

(iii)

Icf) 17 9-

f9Trfur

arrc

4 1

T f t

tIdI fffir-

T7

r r c r (114,1

RRT/RT

-a

*r 9

- zOr 04, 4*

Trr/.

)7

F a T a r zrr-

*, f t 441 ?

(iv)

W 9 T I

chiel 3

TWqa q)

kdff

chi ld

tuff gi*i

9 T H

f**r InT

114

41T u ff fdgri P1T t1 4 -1(1c1

,

a - T T

4 1 I 1 1 7 kcc roif 'tf-A 7 I

(q) (i) crgd

k fF7

au

f;hti f4 4

-

E

3Tifrr

— tOz

— w+H-gdi

lieu *Az

—

t111-1 *RIZ

(ii) 'Res a gf-e

th

chid' * f

fmtl

7*R k Th**r 741

r

-

2 4

-r441 ? 2

F-DTN-M-DJWB

Contd.)



(iii)

Illustrate briefly one estimation method

for one bedroom house.

(iv)

Which compaction and consolidation

equipment you recommend for quick

construction of a high rise building and

why ?

(c)

i) Briefly discuss factors contributing to the

ownership cost of a heavy construction

equipment.

(ii) Briefly elaborate the factors contributing

to the rental value of a heavy construc-

tion equipment.

(iii)

Explain the functions of 'spurs' in river

regulation. Also state the parameters on

which design of spur depends.

(d) During a particular stage of growth of a crop,

consumptive use of water is 3.2 mm/day.

Determine the interval between irrigations and

depth of water to be applied when the amount

of water available in the soil is (i) 35%

(ii) 75% and (iii) 0% of the maximum depth

of available water in the root zone which is

100 mm. Assume irrigation efficiency to be

60%.

2

F-DTN-M-DJWB

Contd.)



(iii)

t @TZT9 WU (Ai •tcfri t 197 afitt

arr*79

%T0

cr 4 w JR

4

-

(iv)

han 3/4

fv

Wm

3 / 4

kg

7-

E r

7

ft

a rq

-

s iwr

IT

'?

(i)

7T

4re

RTifur

Ei7

3 / 4

m

3 / 4

1 Ti

17«q141

3 / 4-

t

- 3 / 4 ):

41

e m s

4 «-1R;44 1

flf

-

7I

(ii)

7 3 / 4

me

f9

1

47

Ei7

- 3 / 4

R-c r E r r

4 C q , 1

3 / 4

kg

.f ticqiLi 3/473 /4)

:

3 / 4 )- 4 4 Er

I

0

10

9 -R.0

k s ta.

: R

4 - 1 . °

T

t 4 1

I

t ?

/ 4- 3 1

-

fl

g 3 / 4 7

-79

lei 4 Trffth

vz srm-

r17

ad

( ti ) 73/4 3 /4 97

-

3 / 4 wear(

r(

CILI 3.2 mm 7191

47 t I AO

frit

JI1

ft

3 / 4 r ,

7-7

/ 4

- to

47)

100 mm t,

,

flciou

ft Hill 3/47 (i) 35% (ii) 75% 771 (iii) 0% O' ffa

frrarz

Eff w r

*duff Fut Tc

4t

.1&1{ 1icl

*11-

4g l

RN

4 1 1 t f 3 / 4

Taf q4 Tr 60% t I

12

F-DTN-M-DJWB

Contd.)



(c) Explain the impact of flood wave on river

water levels and flood travel time and explain

the terms 'prism storage', 'wedge storage' and

`Negative wedge storage' with a suitable

sketch. Also write an equation for flood

routing where storage is expressed as a

function of inflow and outflow in the river

leach.

2

2.

(a) A small

CPM network has the following

data. Establish

the optimum schedule for

(i) minimum cost, and (ii) minimum duration

if the indirect cost is

it

3000 per day and all

normal total direct cost is t 2,00,000 only.

Atli'

vity

Following

Preced-

ing

Duration, days

Time cost

curve

slope in

T day

Normal

Minimum

A

D& E

—

8

6

2000

B

F

—

12

8

1 50 0

C

—

—

20

19

2 5 0 0

D

—

A

1 0

9

3000

E

F

A

5

3

1000

F

—

B & E

10

9

2200

20

F-DTN-M-DJ WB

Contd.)



417 mei citil r aitift

- 5

c1: M IT

M '

P T P T

tr< wt.gwrq

l

t

r4 ' t

trro

r ,

cs

—

Al

4 - i • s i o r

.4suliciicb

r0 w .Far

WI

01w

pre Q1-

7147,

1

74fftf47kim

b <

R14 7

:1101

% i-s

rwr sedia7

attr ctre

*

s

ri, icb qf im rr

t1

2

2. )

9 l 0 1

keircriT kd **

14-1

(I 1

Rec tii WIT

if RTTicia *11

-

4 tiR

e n

t W

11 (10 Wf ara LiR arcrS41

cn

Nld

it 3000gfaff

I 4 n

'T 2,00,000

t

3 4-

irr*

acirmft

weir, fta

Tsar Ru in

a g E

sin

T I M M

«41CtM

T

isrfaraw

*

A

D & E

—

8

6

2000

B F

1 2

8

1500

C

—

20 19

2500

—

A

1 0 9

3000

E

F

A

5

3

1000

F —

B & F

10

9

2200

20

F-D1N-M-DAVB

Contd.)



A

10 Ws

th ,

f ) 1

)

---

o

(b) (0 A part of the network is drawn as

follows :

Tabulate the dependencies as shown.

If actually Z depends on B & Y and

R depends on Y & Q only is there any

error ? If yes name this error, and redraw

the corrected network.

+2+6=10

(ii) State and explain factors which influence

the silting of reservoirs. How this affects

the useful life of reservoir ? Also explain

the terms 'live storage', 'dead storage'

and 'effective storage' in this context.

10

F-DTN-M-DJWB

Contd.)



(i) 4Z-

4

1 7 4 7

: ) 7 : 1

-

19

- 1

g, 4

R74Thl

A

l0

5

1 0

ctUw -

dp:ff 1 fltqw Trg

- 7 7 1 4 -

441

F 4 w r

e ftcr, qrq ci te ctR ici,

i4Z

tR

-

11

B

3 i

-

1T

Y TT T4TR Trlc

e

311(Q

E R

7E4

id ii14

4)

V . 1 1 1 1

9 7 4

z4 4A

Feirl 47-

44 7: W97

2+2+6=10

(ii) 39'

chk chl cb) adi Q 4

,-r

-4147

wow

0 4 fliq-era

4 , 1

9wr-

4-

6

ct,<

z t

mcdwzr

- T 9-

titi

chit

SIST4-TAU T

-k-

?wnf

tiff

(1

) c 4 i

-

grcur , 4-li (7) troi

9 1 7 f r

9

1-Tr* Kr)\

-

fta

4)'ite

J

474 tFru

ttf-

A7I

0

F-DTN-M-DJWB

Contd.)



(c) Annual flood data of a river for 30 years

yielded mean annual discharge of 30000 m

3/s

and a standard deviation of 15000 m

3

lscc. For

a proposed bridge on this river, it is decided to

h ave an acceptab le r i sk of 10% an d se rv ice l ife

of 50 years.

1.

Estimate the flood discharge for design of

bridge.

2. If the actual flood value adopted in the

design is 1,18,000 m3

/sec, what is the

safety margin for maximum flood

discharge ?

(Given that Reduced mean and Standard

deviation for Gumbel distribution for 30 years

are 0.5380 and 1119 respectively.)

0

3.

(a) (i) Compare and contrast the

—

self compacting concrete and

—

harsh c onc re te .

Where each is used ? Comment on the

workability.

0

(ii) List different type of stone masonry.

Explain the purpose of through stones in

random nibble masonry. What is the

stiching of distressed big stone blocks ?

Disc uss .

0

F-DTN-M-DJWB

0

Contd.)



30 Tin arrUtiied ZTR

7Te

:inr6FT

314 9. 6

1114 Pithtui 30000 m

3

/s yet

P U N T

ITRT

.

R 9 7 9 1 5 0 00 m

3

/sec f I w

1

1

T

rt

IT

9 V . T T P d a

.

iffq zff

far Rtrr T i m

R

a r

-rrf9wq

-

IR4 7 r

10% W

4

T 5 0 TEI lT ;Aaict iim

1. 4

-

q q 3rflimcz @

friA 7

2.

<l ied len c1Ir

Icr9 -

t

1,18,000 m

3 /sec f;v4i 711

fa

3

6 4 5 7 1

1

'

61 1 4 ftirk

trr *M7 krcur F rk-F4 9.

qzrr t ?

(Ret-a.

Trrg r ca r-

r

a

-

s9 T

iert

30 RN

N 7 s t o

-

RT : 0.5380

3

1t< 1.119 t I)

20

3. (T) (i) rff( MIT iti

4 i qffia

—

om: titm)

zu

p i

Rrz

9 4 11.r eh (' fi izrr

*114.

1

q,I4'11eTf1I tR •

Fullih

- :

-N7 I 0

(ii) fifimnrr crsg

ft

-qv{ krt

r- A 7

trr&W

3

14

1

7 WRIT 1;111i4 ii i4

IT S T 4 a

,

T r 1 4,14 P ? slem-a

a

4c6

11

6i$1{ 4 4 T

C 11 t ? 0 1 1 611. ‘lf'47 I 0

F-DTN-M-DJWB

1

C on t d . )



(b)

(i) The following data is given for two

power shovels. Identify the proper

choice. 0

Interest rate 10%.

A

lacs lacs

Initial cost

.5

.0

Annual costs .5 .3

Salvage

25

5

Useful life years years

Annual

quality gain

il

2

(ii) Explain and differentiate between unit

hydrograph (UH) and Instantaneous unit

hydrograph. Also explain the computa-

tional steps for deriving 2h UH from a

6h UH.

0

(c)

What are the conditions based on which the

effective length of the spillway is decided ?

What are the various methods adopted in

energy dissipation below a spillway ? Explain

the most suitable energy dissipation arrange-

ments that you would recommend for each of

the following conditions.

(i) When Jump Height Curve (JHC) is

always above Tail Water Curve (TWC).

(ii)

When JHC and TWC nearly coincide,

and

(iii)

When JHC is always below TWC. 20

F-DTN-M-DJWB

2

Contd.)



(u)

(0 e arch

1 1 M C I

i 147 11

-4

afr4

f=7 t \Ficruiff 43Tfw

10

«ar~~

10%t

I

A

Mllq

wsi

alit

-NTT

.5

0

izt, ?rid

.5

.3

r I t T I N Y I

5

9P-1

-9-

d 39

IN•

aw

l

arfif

li triffrff54

:1

2

(ii) PTV TWA7 44

3Tk4 14

1-4i M

. )

. 4

(i)

u,ch ich 1

-

4 5 1

4

1 1

,

) (UH) e rr

(ii) TWNTT

crT 2h UH

4 6h UH

h) jcc9q

d A 4 k

N7

riflu id Fold, P t

o h )

'07 I 0

(Tr) 4 TfttrfC

eTfurn

' fm4k 3Trurc

Avil

id) t ?

ow

fiRTw faruth:

? 414 4)

fa

k

earl 377 c1

11 d-oir

-R4

-

4M4 Brom

a,a ?

(i)

7 4 .1-001,1 t l r15 t i

4*) qr1

- 1 -

.0

7f

t

h)

, L

i& t

(ii)

w 4 74*m-4

fT4 wrwr Ow*

(iii)

7-4 4 7

-q• tft ur

14 *1

20

F-DTN-M-DJWB

3

Contd.)



4. (a)

(i) Sketch

a drag line and explain function

of each part.

0

(ii) List the different ingredients of a brick

making clay and function of each part.

10

(b)

hich tests on timber are carried out,

both along the grains and across the

grains.

List the normal defects in timber with

sketches.

0

(ii) Explain briefly the functions, location

(with/without sketch) and design

considerations of the following :

(i)

Undersluices

(ii) Fall

0

(c) (i) What are the various causes of seepage

and percolation losses from a canal ? 5

(ii) Explain the term Hydraulically Efficient

Channel Section . Prove that the most

efficient trapezoidal section is one half of

a regular Hexagon.

5

Section IV

S.

(a) Describe the Boussinesq approach of stress

distribution for one layer theory and

Burminster approach of stress distribution for

two layer theory in a flexible pavement. 12

(b) List human factors governing road user

behaviour. Discuss briefly.

+7=12

F-DTN-M-DJWB

4

Contd.)



4.

() (i) Cr

.

*itrrC,

n

ITPT % )* FIE 4071

0

(ii)

tc

, F 4 T O 4 1 M 1 1 4 i

rEnV

T K

-

t 9 1 1 T W S W . i e c t . T T

10

(ca) (i) 9m

-

rtz*k

s f i :

4 far 4 9

qr

rmor

frur 04 'crew 47, AI; ?

R5r alellcbc V3/4

E f 3 / 4 k i l3 4 1 r 4 4

4 1 4 1 -

1

DT I

(ii) Ott 4 PfrikiNci

R 6 r

M9

R. )

c h R i r u z i

-rsrata76 cr

-4

3thw

a r m r

-

i f f i T e

.

c n 1 C 4

g :

S -73/4

00 W M

0

(TO (i) cw

fuy cute atmtii

4 € t

q i c i

4 7F4

7

411?

‘

,,

R4 144 vii 1Tfl tift

- - -

4

e 4 RE'

frrA7 I AZ er77 rairuch 44T

<q) trir4 4

Nor Witt tirra

3 1 7 E r T t I

5

5.

(W) cIT 974 Tip

.

if, 7*

- -

4if4n

ANfritch crw

t rmfilzia

siwuRurr W1 cater uf-d

- -4R

4-d7

r w s a m

-k-

a r r1 a t f f isq l *A V 12

(•) 110 av 4 l

a

z 4 4 1 <

a4.ca wr4

z1111414i tfr7I t14,1 acr

arrfErrer

-A -

qI

+7=12

F-DTN-M-DJWB

5

Contd.)



(c) A fixed time 2-phase signal is to be provided

at an intersection having a North

,

South and an

East-West road where only straight ahead

traffic is permitted. The design hour flows

from various arms and the saturation flows for

these arms are given in the following Table :

North South

East

West

Design hour flow (q)

in PCU's/hour

800 400 750 1000

Saturation flow (s)

in PCU's/hour

2400

2000 3000

3000

Calculate the optimum cycle time and green

times for the minimum overall delay. The

inter-green time should he minimum necessary

for efficient operation. The time lost per phase

due to starting delay can be assumed to be

2 seconds. The value of amber period is

2 seconds. Sketch the timing diagram for each

p ha s e .

2

(d)

(i) Discuss any two methods for predicting

population with their relative advantages

and disadvantages.

(ii) What are waterborne diseases ? Also

discuss their control measures.

(e)

(i) Explain breakpoint chlorination and

super chlorination.

F-DTN-M-DJWB

6

Contd.)



(Tr) R ift at

-M rq q, .10 crT

,ITic-eutrr Tarr 14.-

E r W T T r

-

c“9 4T Td

n i)-

rsr

qic1144(-1 SITM t) , t cL

T

wig

t ~ a l T

4k-d7

3i1WIT9' Eitref

MIW Ira 4

MIT

7

A

-raff

Up-0-1 arra

-p-FFaf-

gwru Rqi TT( t :

1

at

e z i n

Tat

trikgr

affa

9 4

-

ff Eiat (q)

3 1 1 1 7 ( 4 1-

PC U's /h r

800

400

750

1000

T i I T R 3 T 1

-

1 7 1 1

,

(s)

PCU's /hr

2400

2000

3000

3000

r W

7 1 -

cIH 1st) (14-14 RTr

tpiq aT 3(r*

-

99

ar-

A7I atff:71

T r i T E r

aff4aI

Mei f

i ) r t i W11 7 7 I afroTff te

.

4}Rui1

c ) c h m i

Wig 1

1 a 2 43 4T9T IT

tick

-1W

1

-

19

-

419

2 4i31

1

otfici-arftfir

Fqx67

2

(Er) (i) ‘

,

1(Wl

u*

ir

1 1--

ta

0 2

4 1 t o q i

6

‘ 7 1 4

0

14111v4 I cbli

%-

1

7 %*

ii(lt

,

A ar

-4q I

6

(3

) (I) R---

1

1 4 s gd ia ciA u t a w r a ff

d- 9

-1ewk

u r

ti

-(F-47

F-DTN-M-DJWB

7

Contd.)



(ii) Determine amount of bleaching powder

required annually in a water treatment

plant treating 10 million litre per day of

water if 0.2 ppm of chlorine dose is

required. Available bleaching powder

con ta ins 30 per cen t of ava i lab le ch lor in e .

10

6.

(a) (i) Define probability density function (pdf)

and cumulative density function (cdf).

Draw pdf and cdf for a Normal Distribu-

tion.

+5=10

(ii) Define Running speed, Time Mean

speed and Space Mean speed. Explain

method of measuring spot speed using

Enoscope.

+6=10

(b)

(i) Explain different types of road signs with

e x ample s an d ske tc he s .

2

(ii) Explain

equent ia l

ransportation

plann ing pr ocess .

(c)

(i) Design the spacing and size of the dowel

bars at an expansion joint of concrete

pavement of thickness 20 ern. Given the

radius of relative stiffness of 90 cm,

design wheel load 4000 kg, load capacity

of dowel system is 40 per cent of design

wheel load. Joint width is 3.0 cm and the

permissible stress in shear, bending and

t he be ar in g s t res s i n d ow e l bars a re 1 0 0 0,

1500 and 100 kg/cm

2

respectively. 10

F-DTN-M-DJWB

8

Contd.)



ii) 7

te

4, * 10 141;144

4

9

-Rfq9.

*ffi

ct rwi t.

, .1114 W *1

.

t a u t

. .

< it R 9

.

* 4 r xr g ra w w

0.2 ppm 19)-

1ff TiK rq it

1.M4chcii t I

,v ic ieDJW1SiT4t33t

4

0% t 110

6. (T) (1)

ErTO' them ONTO Mtn tiv4

hci

th

-

acrE)*

r h r F E r a itf

-

4

tfractcg mir

:11#7cE

f

w f t r m n r

ifF97 I

+5=10

(ii)

trf

cw% 41

-

7

trr49' Wrff, wrdwur

1aTi9

.

F r4e04

774r4

W

-6 9 Tff a)

tcif t ?

+6=10

(q

) (i) F`4.1V 5*R *

Trrif fikaii fqi

i mi

aRI

e

r47I

2

3f rleTrT rif t

-W

44-11

MT 4

WE

itfirg I

(4) (i)

).) telz

TEF *N7 91i7 ER

31

20

4 9

cm

ie

Fiff*a(UKTff

0'.71 T 3.15TWFR

ar

47 aTAfil*elzfaT

i t f ; 1 4 4 1 1 9 0 c m ,

3 . 1 1 4 1 M 7 .4 9

-

*IT 'MT 4000 kg, stei '51'

it

WIT 4 i ird( arNi

TR *T 4 0 % t ;

Iv

WITIt 3.0 cm c14i

3 T

P W 4 1 1 1 ,

c ic f r i W e T T

37

-

9

lM TRuf ed

-f f W i n T :

1000, 1500 P-TT 100 kg/cm

2 t I

0

F DTN M DJWB

9

Contd. )



(ii) Design the length and spacing of tie bars

given the pavement thickness is 20 cm

and the width of the road is 7.0 m with

one longitudinal joint. The unit weight of

concrete is 2400 kg/m

3

, the coefficient

of friction is 1.5, allowable working

tensile stress in steel is 1750 kgm/cm

2

,

and the bond stress of deformed bars is

24.6 kg/cm

2 .

0

7. (a) (i) Explain egg shaped sewer section with

their relative advantages with circular

section.

(ii) Design a sewer for a newly developed

town having population of 50,000. The

sewer is to be designed for 3 times of dry

weather flow when running full. Also

find veloCity of flow. Available slope for

the sewer to be laid is 1 in 700. Assume

Manning's coefficient

n =

0.01.

5

BOD .

(b) (i) Explain significance of — rano. How

C O D

it helps in deciding type of treatment to

be given to waste water.

(ii) A combined sewer system is serving

20,000 persons having BOD, 70 gm per

capita and 50,000 litres industrial

effluent per day having BOD 450 mg//.

If average standard BOD of domestic

sewage is 0.08 kg/day/person, find the

population equivalent of sewage.

5

F-DTN-M-DJWB

0

Contd.)



dr1.1051

c h

qr al

-

uff Z13rR4 - -*FR

f rF4g7461“ q111 t .kTigriThaf20cm,

ITO 9171 7.0 in 727T

9tar •31)5 t I

tra lir(

400 kg/m

3

, EftfaT

Trrrq, 1 5 .

Zell(

' 4 9

Z

r drill 9

f

.4 ff

175 0 kgm /cm

2

9-91 t

vd f W( *.TT

g fa-47 24.6 kg/cm2

t I

0

7. ( ) (i)

och 9-

9

4 1

*--

49

*4no

t

a e r e T T w p f r 9

-

14 t, epse. n 4 9411lAR 15

(ii)

49t4-19 Richrtfri 97F k f f

\shi t4.41 5 0,000 t + (rich

illw

trr-7 I 4-1rich Wff i

-1t F ,

swa

ITT 7T-

* kis.4) 4144 3/4 at it 997 k

arrwt

I 4-mq, 9c Q

Tz r e r dw tkt(9701711 : 700 t I Af4 TTTitT

n = 0.01

i : r m

-

c i

r

iro: I 5

#311a

(U)

(i)arIcrra

=07

I 3 111fiTE

T t

th3ft-et

7011

9 rch ti Ac I& 14I 7PT, Z

7 39t1ff

tt

)cll t ?

(ii) lm T1z:/ ffW

W 20,000 aT if f iz t

m R 1 TFcF # 34-

a 70 gm t

9

-

1

5 0,000 WICITW

Ter-T tat)*

450 mg// t, 1QIt 11 adl t trft 71

-

,

ficich TrATIMINich***0.08 kg /R

,i/

arft, 49

904.44 wr ~Irit lN4 i cc

• ~Fi aid

efl

5

F-DTN-M-DJWB

1

Contd.)



(c) (i) Explain working of skimming tanks for

removing oil and grease.

(ii) What are stabilisation ponds ? Design an

oxidation pond for treating sewage from

a town having population of 15,000.

Sewage contribution per capita per day

is 120 / and BODs 200 mg//. The town is

located in hot climate. 5

8. (a) i) Write short notes on cant deficiency and

negative superelevation in Railway track.

8

(ii) The rulling gradient has been fixed as 1

in 250 on a section of a B.G. track. What

should be compensated gradient when

500 m radius horizontal curve is also to

be introduced on a rulling gradient ? 8

(iii)

Explain road camber and its necessity.

Which road surface would need sleeper

cross slope — concrete or bituminous ?

4

(b)

(i) Explain the terms garbage and rubbish.

How these are different than ashes ? 5

(ii) Discuss composting for disposal of solid

wastes. Also explain methods adopted

for composting in rural areas in India.

15

(c)

(i) Discuss the status of monitoring and

control of air pollution in India.

0

(ii) What are the sources of particulate

matter in the environment ? Discuss the

control of particulate matters in

Industries.

0

F-DTN-M-DJWB

2



(Tr) (i) dM 9/Tr

t; Tr2T9- e. .4 4 = r

TTT F a R T F I B f1 1

-

2' I

(ii) TtErT*.bRch t-

7 =NI

crTaTR*Pitt

o q I

15,000 t

T1W

9C-

7 H ct a, 97

120 /

: 4 5 1 2 00 m g/ /

*, ma, Tr-a

T r a k i i = r w r c

-

3liWcra Qf-

7 I r i i i * kTi lTrTr TrTf

aldl

,

wilt I

5

8. (nc) (i) k71-0414 4-le 4-11*44F7*

-

7 . 7 1 9

-

7

< Fif417 Rtquft fI

(ii) 4 114 ITT I4 m (=is ' u t ( ( ;141 Yoluld I 1 4

250 Waa•

rf t I ,s i s i

biC 4+1 9

l d I ciT

5 00 m a lla r rTrw r a raWcisb *14 5 :Ar r

,

f? 1,

fi ke l now r

?

(H) 1114 4 ,4 -5 1* ,,r i r 81T- 3 q c b c - 0

vry

*rr

-

g I R-ff 9 T h-

R

rrTf Tr-dt 4 T*

trc

3 T

MI1

rmwr 4 Z

arn i cs i

H

t1 ?

(T4) (1) 7

-): ch-I*1 31-

1

- Kfqiff i t,

1 Q

F

-

-

7 1 4 * 1 (1

o

-

lti With* *CiectRui klee.r f*)•TcrE

491

-

7 ITRa **Thr a-): crii,

ltdfi

eve. j

5

(10 (i) Thrd rttaT

aqT

RT1wur ITT fRTFT t ?

0

trTrfaTur

q i awl

1ci 4Tr t ?

utTr' 4.-Erfrwr raft RT

r4trr

t ikoqi

QF-

7 I

()

F-DTN-M-DJWB

3



F DTN M DJWB

ZINTIP

44t

5r4w trq 11

rfr

300

4 4 14

f

n

W u

9

.

0W

P7

e l

ik

_ 3 _ 7

Wit t

T34

i W 1

myr

4

414

wr6cr,

A

ff

4P* 9 V

-77 7

1 T

4

14 F R Z I T T

fir

Far 3*(21

ant

-

9

-

iffW tftc1-

9 7 3

.

9Z Saff

Wig F P - 4 4

cir Riff

unfit

WP67

I 944 T

-91 97.

,..iReil;fct

r eakm

- WRI ft?

F T S T P T if P i <

rq

\tl< cR

0-4 3 1 W

r t 6 7 6/0

e l - 6 1 1

I MT 5

eff - 4 7 2 f

e: wA

p9 -1

7*tta0eft

TffTT

R7fl 4.p7Yk,11-t< orifq

9

wv

kfc:NR

c r a-

3iwpflar-- 4 :&d

z r q

- ff/

ar

-ff

are 492sw a ctch 3r

-7 2 u

T

.

qq/ t

/

q F e

3 T W

s r u r a f F r

rt FT

f7R - 777

Rat

Priffiff

< - 1 7 1 : N

3 Ik 7F

-4 IW

M

,

Y-47

4 5 1

arriNch ,

1•0<r

# R

.

7 1 1 1 *

rff

7

kura

,Dwriqqij

777*r

*

7.//

M

-

t i e 1 S 1

I

Alth

riqw--ri

9 cri 4477

-

ri<

ygiTrkffr27 3rwl

un rt

arraufw

ft f;ne fl 44 r

frgY, rTf

Fre .rrnY/urr-m7ff

awr FT2 T F r a r

I

Stich arif

ZIT fr 3nT QSa aT

rer Ri(v)* c

arra t

e r o

4 7* pre * 5P7

4L4ft 4474j3rr-wpri

re‹

F T

T

R I T

1

w iry r

&T r a>h mr col( '

tar'''

.

drt<

7

-Pm

it FT mt

rEr Frr

c h i d

NT*

t; d1

vrTfez n

1710

.

k 31* fig

,

4 1 g Q e

f l rTur e

I

Note : English version of the Instructions is printed on

the front cover of this question paper

ias - civil-engineering_2 - 2012

Documents