I QUESTION BOOKLET
'lirsICode: 12 I Subject: CIVIL ENGINEERING


I 9:fut "" ii qj <iwlT I ,,-Number ofPages in Booklet-=-16.J

I 9:fut "" it qj <iwlT I I...Number. 10f!J.
Time: 2.00 ifiI Hours INSTRUCTIONS
I. Answer aU questions.
2.
All questions carry equal marks.

3.
Only onc answer is 10 be given lor each question.

4.
If more than one answers arc marked, it would be treated as wrong answer.

5.
Each question has [ollr alternative responses marked serially as 4. You have 10 darken only one circle or bobble indicating the correct answer on the Answer Sheet using BLUE BALL POINT PEN.

6.
1/3 part of themark(s) of each question will be deducted for each wrong answcl; wrong answer means an incorrect answer more than one answers for any question. Leaving all the relevant circles or bubbles of any question blank will not be considered as wrong answer.)

7.
The candidate should ensure that Series Code of the Question Paper Booklet and Answer Sheet must be same after opening the envelopes. In case they arc different, a candida.te must obtain another question paper of the same series. Candidate himself shall be responsible lor ensuring this.

8.
Mobile Phone or any other electronic gadget in'the examination hall is strictly prohibited. A candidate lound with any of such objectionable material with hinl!her will be strictly dealt as.per rules.

9.
Please cirrcctly fill your Roll Number in O.M.R. Sheet, 5 marks will be deducted for filling wrong or incomplete Roll Number.

10.
If there is any sort of ambiguity/mistake either of prillting or factual nature then out of Hindi and English Version of the question, the English Version will be treated as standard, Warning .. If a candidate is found copying or if any


ullauihorised material is found in his/her possession, ELR. would be lodged against himlher in the Police Station and helshe would liable to be prosecuted under Section 3 of the R.P.E, (Prevention of Unfainneans)Acl, 1992. Commission may also debar hinl!her permanently from all future examinations of the Commission.

12 Civil Engineering
12
CIVIL Ww ii1l rAJ mthr .
Maximum Marks: 200
M"
1. I
2.
wiT "At I

3.
Wllq; 'fiT 1l'II tTi3"t'I1

4.
1l'II «m if in 11i'fff


I
S. in "ilR i3"t'I1 "l"fl1" 4 fcn<rr 'l1lT il><wr 1l'II i3l"QCIT <lIT '1l1ol'. "" 'lTU t I
6.
mpr 1fr Jil"l: I:f<li q,T .w'ft Jir¥rr 'Iilif

7.
i3"t'I1 tf?I<fi in furm;-qjl-1fli;r ifi til; crt! -3tfcFKr t atfcFKr tim' f1:FKrr m"ill <Cr tt <lit I Q;m 03fR;J4f <Cr iM't I


8.
IIi'R <fiT lfftm mif m I OM" mlf!lT fIw!<ft t ffi i3l"l<frT &Tn f.tQljljl:ll{ i:ll""$ritl ifir

9.
if't/QT iWf'tT TJi;r an.q>l".ilTR. 1ft I '31:flm aTq;,uf TJi;r 5


... JlI'ilt<it ii " WI " """" I
10. M if M 1I"'fiT{ <Cr ffi in if .atfr;;fr lfRl "WITI
«ml' ijj]'ijT t <ITm
t. "" OM"
ii om. -h.
1992 f.mIj-3 ;;;rirr1t I

arnfttr <Cr lfftlffiait" "€I" t I
11111111111111111111


1 For walls having thickness of wall more than one and a half brick, the following bond is more compact and stronger

Double Flemish Bond English Bond


Garden Wall Bond Dutch Bond


2 In a wooden door, IlStyle" is the

outside vertical member of the shutter


topmost horizontal member of the shutter


middle horizontal member of the shutter


horizontal projection of head
3 From practical considerations and effective working of the ventilation system, the desired value of rate of air changes per hour is

one five


twenty thirty


4 Quick lime is

Calcium carbonate Calcium oxide
Calcium hydroxide Calcium chloride

5 The pressure acting on the stones in stone masonry construction
should be


along the direction of bedding planes


at 30° to the direction of bedding planes


at 450 to the direction of bedding planes
perpendicular to the direction of bedding planes
6 Efflorescence in the bricks is caused due to
Lime Organic matter
Iron Alkalies
7 Dry Rot and Wet Rot are the

Defects of timber Diseases of timber


Characteristics of timber Structure of timber


8 Which one of the following is responsible for initial set and high -heat of hydration

Tri-calcium silicate Di-calcium silicate


Tri-calcium aluminate Tetra-calcium alumino ferrite


2

[Contd...
9 The vertical distance between the springing line and highest point of the inner curve of an arch is known as spandrel flse intrados extrados
10 Ring and Ball apparatus Penetration Ductility IS used for the following test Viscosity Softening point of bitumen:
11 Error due to bad ranging Cumulative positive Compensative IS Cumulative negative Never serious
12 points of zero declinationImaginary line joining the earth is known as Isogonic line Magnetic declination line Isoclinic line Agonic lines on the surface of
13 The curved surface which at every point is perpendicular to the direction of gravity at that point is known as A level plane A level surface A horizontal surface A vertical surface
14 Spire test is used for the permanent adjustment of a Adjustment of horizontal axis Adjustment of vertical axis Adjustment of plate levels Adjustment of line of sight theodolite for
15 If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will increase. decrease not change may mcrease or decrease
16 Axis method of traverse correction is used when The lengths are measured very acyurately The angle are measured very accurately The percentage error in angles and lengths IS same Neither angles nor lengths are measured accurately
3 (Coutd••.


17 If the R.L. of a B.M. is 100.00 the back-sight is 1.215 m and the
foresight is 1.870 ill, -the R.L. of the forward station is

99.345 m 101.215 m


100.655 m 101.870 m


18 A curve of varying radius introduced between two branches of a compound curve is known as

Mean curve Base curve


Common curve Transition curve


19 Contour lines of different elevation cao unite to form one line only in the case of

Plane ground Cave


Vertical cliff Valley


20 The method which gives more accurate results in the measurement of areas 15
Average ordinate rule Mid ordi.nate rule
Trapezoidal rule SImpson's one third rule
21 The porosity of a soil sample is 35% and the specific gravity of its particles is 2. 7. dry density of soil sample is

1.755 g/cm3 0.755 glcm3


1.57 g/cm3 2.105 g/cm3


22 The coefficient of uniformity of a soil is given by
DIO /D60 D6D I D IO
D30/D60
D6D I D30

23 If the natural water content of soil mass between its liquid limit and plastic limit, the soil mass is said to be in
liq uid state plastic state
. semi-solid state solid state
24 Discharge through the body of an earth dam may be calculated using flow net as ." I
q q

where, k is coefficient of permeability, h is head, NF is number of flow
fields and Nd is number of potential drops.
4 IIDIIIIIIIIIIIIIII [Conld•••
The critical gradient of a soil having specific gravity as, 2.67 and voids, ratio as 0..67 is .

2.0 1.0


4.0 2.5


26 Select the correct .statement.
The greater the is permeability.

the unit weight, the greater is· permeability.


The greater the unit weight, .the smaller is permeability..


Unit weigh·t. does, affect permeability.


27 The phenomenon when soil loses its shear strength due to oscillatory motion is known as

Consolidation Shear failure


Liquefaction Sloughing


28 Degree of consolidation IS
directly proportional to time and inversely proportional to drainage
path

directly proportional to time and inversely proportional to square of drainage path


directly proportional to drainage path and inversely proportional to time


directly proportional to square of drainage path and inversely proportional to time


29 The shear strength of a soil

is directly proportional to. the angle of internal friction of the soil


is inversely proportional to the angle of internal friction of the soil


decreases with increase in normal stress


decreases with decrease in nonnal stress


30 A vertical retaining wall retains a backfill with a surcharge
of uniform intensity q per unit area. The depth 2 0 where the active earth
pressure is zero, is given by

_.tan

(1)qjy
y

2C'
-tan -tan



yy 5 IInlllllllllllllll [Contd..•
31 The ratios of pressure between the points X and Y.located respectp. 2. at depths 0.5 m and 2 m below a constant level of water in a container
IS

(1) I2 Ji
(3) 116
32 A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m respectively below the free surface. The position of center of pressure below the free surface will be at a distance of

3.75 m 4.0 m


4.2 m 4.5 m


33 A stone weighs 450 N in air and 250 N in water. The volume of the stone is 3 m3

0.0204 0.204
33



1.0204 1.0402 m


34 The metacentric height of a floating body

Is the distance between metacentre and the centre of buoyancy


Is the same about longitudinal. and transverse axis


Is the distance between the metacentre and the centre of gravity


Is the height of centre of buoyancy


35 stream function is defined by the expression =.2X2 -y3. Calculate the components of velocity at point P Y 1).

-12 +12


12,


36 The hydraulic gradient line represents the variation of

Datum head in the direction of flow


Velocity head in the direction of flow


Piezometric head in the direction of flow


Total energy in the direction of flow


37 If H is tbe head, lhe discharge through a V-notch varies as

H I/2 H3/2


H5/2 H5/8 12_AJ 6


leonId•.•
In laminar flow, the shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is

constant over the cross section


parabolic distribution across the section


zero at the mid plane and varies linearly with distance 'from mid plane


zero at plates and increases linearly to midpoint


39 With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

a circular disc of plate held normal to flow


a sphere


a cylinder


a streamlined body


40 Lysimeter is used. for the determination of
Transpiration
Infiltration Pan Coefficient
41 In the derivation of 'unit hydrograph the flood hydrograph should have the duration of rainfall as

10% of basin lag 20% to 30% of basin lag


50% of basin lag 60% of basin lag


42 The rainfall on five successive days were measured as 100 mm; 80 mm, 60 mm, 40 mm and 20 mm respectively. If the infiltration index or the storm loss rate for the catchment area is earlier estimated as 50 mm/day, the total surface run off will be

50mm 60mm


90 mm 140 mm


43 The scour depth as per Lacey's theory is given as follows (where q IS the discharge intensity and f is the silt factor)

R 1.35 R 1.35 (qJfl)ll3


R 1.35 (fJq2)I13 R 1.35 (flJq)I1J


44 For a flood control reservoir, the effective storage is equal to

useful storage valley storage


useful storage surcharge storage


useful storage surcharge storage valley storage


useful storage surcharge storage -valley storage


7 11011111111111111 [Contd..•
45 The silt factor in Lacey's theory is given as
f 4.75 7.4Sjm;.


f= f 156.Jm,.
where, ror is the average particle size. in mm.
46 Modulus of rigidity is defined as the ratio of

longitudinat' stress to longitudinal strain


shear stress to shear 'strain


stress to strain



stress to volumetric strain


47 IfM is bending moment, I is moment of inertia, R is radius of curvature, E is modulus of elasticity, cr is bending stress, y is the distance from neutral axis, the' flexure formula is
M (J R
M y E





I R I y E
I R M E



M y EI YR
48 Purlins are supported on the:

Principal rafter Common rafter


Bottom chord Base plate


49 Effective length of a weld is equal to

overall length -weld size


overall length -throat thickness overall


overall length x weld size


length x throat thickness


50 In a grillage footing the beams in each tier are spaced such that the minimum spacing between the flanges of the two .consecutive beams is not less than:
50 mm 75 mm
100 mm 150 mm
8 1111111111111111111 [Conld...
.51 For a bridge having span more than bridge is Riveted Plate Girder Bridge Welded Plate Girder Bridge Suspension Bridge Truss Girder Bridge 150 the recommended type of
52 A beam of rectangular cross-section is 100 mm wide and 200 mm deep. If the section is subjected to a shear force of 20 kN, then the maximum shear stress in the section is
1 1.33 1.125 1.5 Nlmm'
53 The relation between modulus of elasticity bulk modulus Poisson's ratio 11m is
E K 3K 1 3E E K 2K 2E
54 For the portions of a simply supported beam, over which uniformly distributed load-is acting, the bending moment diagram will consist bf: Inclined lines Third degree polynomials Fourth degree polynomials Parabolic lines
55 1 1/32 The moment of inertia of a rectangle of width b and depth about an axis XX passing through its centre of gravity and parallel to the ends, IS gIVen as 1/12 Ixx 1164

56 The carry over factor in a prismatic member whose far end is fixed is

0 1/2


3/4 1



57 The heaviest I-section for same depth is
ISMB ISLB
ISHE ISWB 12 Al 9 1111111111111111111 [eonld...
58 The maximum deflection of a fixed beam with central point load is given as equal to
WL4 WL3

192£1 192£1
WL3 WL4

384£1 384EI
,59 The' number of equations required to obtain axial force -in the members of a statically determinate plane frame is


60 For a standard 45° ,fillet, the ratio of size of fillet to throat thickness is

1:1 1.414


1.414: 1 1


61 A cantilever beam of rectangular cross-section is subjected to a concentrated load at its free end. If the of the beam is doubled, the deflection at the free end as compared to the earlier case will be

16 times 8 times


2 times Half


62 Bearing stiffener in a plate girder is used to

transfer the load from the top flange to the bottom one


prevent buckling of web


decrease the effective depth of web


prevent excessive deflection


63 In a fixed beam carrying a uniformly distributed load W over the whole span, two -points of contraflexure occur. They are equidistant from the centre of the span and this distance is
L L
fi
2L
2fi fi
10 111111111111111111 [Contd•..

64 In a statically determinate plane frame the relationship between member of bars and joints can be expressed as

j 2n-3 n 2j-3


j 3n-2 n 3j-2


where n number of bars, j. nllmber of joints.
65 The stress developed in a bar which is not free to expand due to increase in temperature, is given as
a


IE

I E



aE at where is the coefficient of thermal expansion and t temperature increased.
66 For -most of the applications, water to cement ratio should be between: (1)0.4 and 0.5 0.5 and 0.55
·0.55 and 0.60 0.60 and 0.65
67 The flakiness index of coarse aggregate is the percentage by weight of particles having "least dimension (thickness) less than of their mean dimension.

One-fifth Two-fifth


Three-fifth Fout-fifth


68 The fineness modulus-of fine aggregates should be between

2to3 3to4


4to5 5to6


69 In soundness test by Le Chatelier's apparatus the increase in the distance between the pointers should not be more than

1to2mm 3to 5mm


5to10mm 10to 15mm


70 If a beam fails in bond, then its bond strength can be increased most economically by

increasing the depth of beam


using thinner bars but more in number


using thicker bars but less in number


providing vertical stirrups



11 1111111111111111111 [Contd...
71 The minimum cement content in moderately exposed reinforced concrete with normal weight aggregates of 20 mm nominal maximum size is

220 240


280 300


72 For lightly reinforced sections in slabs, beams, columns etc. the slump
should be


15-25 mm 25-75 mm


50-100 mm 75-100 mm


73 The minimum diameter of longitudinal bars in a column IS

6mm 8mm


12mm 16mm


74 In a critical section of a beam

The full strength of steel in tension is not being utilised


The full strength of concrete in compression is not being utilised


stresses developed in steel and concrete will simulta­neously be the same as assllmed in design


The concrete will reach its maximum allowable stress earlier than steel


75 In a reinforced concrete beam the distribution of shear stress is

Parabolic over and below the neutral axis


Parabolic over neutral axis and rectangular below neutral aX1S


Rectangular over neutral axis and parabolic below neutral axis


Rectangular over and below neutral aX1S


76 The minimum spacing of stirrups is

6em 10em


12 em 15 em


77 It is usual not to provide thickness of floor slabs In buildings less
than
7.5 em 10 em
12.5 em 15 em
.12_AI 12 IIIIIIIIIIIIIIIIUI [eontd...

78 A doubly reinforced beam is used when

Extra safety is required


Large moment is experienced by the beam


Beam experiences tension in top as well as. bottom fibres


Depth and breadth of the beam have to be restricted for reason of appearance etc.


79 The neutral axis of aT-beam
Always passes through the flange area Always passes through the rib area Is always at the junction of the rib and the flaCan exist anywhere in the section of beam nge
80 In the heel slab of a provided at Top of slab Centre of slab cantilever retaining wall, main Bottom of slab Sides of slab reinfo rce ment IS

81 For one storeyed buildings in town the minimum residual pressure at ferrule point for direct supply. should be

3m 5m


7m 10m


82 The distribution mains are designed for

,maximt!m daily demand


maximum hourly demand


average daily demand


maximum hourly demand on maXimum day


83 For growing towns and cities having vast scope for expansion, the method of forecasting population, mostly applicable, IS

Incremental increase method


Geometrical increase method


Graphical method


Logistic method


-84 The standard rate of filtration through a rapid sand filter is usually

50-60· litre per minute per m2 2


80-100 litre per minute per m2


120-150 litre per minute per m2


ISO-180.litre per minute per m




12AI 13 Imlllllllll IConld•••
85 The effective size of sand particles used in slow sand filters IS

0.25 to 0.35 mm (2)0.35 to 0.60 mm


0.60 to 1.00 mm 1.00 to 1.80 mm


86 The detention period usually adopted in grit chambers IS

30 seconds 60 seconds


60 minutes 120 minutes


87 The hydraulic retention time In extended aeration activated sludge .systems is

4-5hours 4-6hours


8 -10 hours 12 -24 hours


88 The hydraulic loading rate of "a high rate trickling filter, including recirculation, in m3/m2/day is

1-4 10-40


40-100 100-200


89 The average daily per capita contribution of BODs IS

15 grams 30 grams


45 grams 60 grams


90 Laying of sewers is usually done with the help of

a theodolite


a compass



sight rails and boning rods


a plane table



91 For a pavement design the recommended safe lateral coefficient of
friction is
1.5 0.15
15 1115

92 Stopping Sight Distance is always

less than overtaking sight distance


equal to overtaking sight distance


more than overtaking sight distance


equal to lag distance 12A] 14 110111111111111 [Conld•••
93 The value of ruling gradient as per IRe in plains IS
I in 10 1in 15
I in 25 1 in 30 94 The maximum supereievation on hill roads should not exceed
8
10 11% 95 The distance travelled by the vehicle during the total reaction time is
known as
Braking distance Lag distance
Stopping distance Sight distance

96 Select the correct statement

Traffic volume should always be more than traffic capacity


Traffic capacity should always be more than traffic volume


Spot speed is the average speed of a vehicle at a specified section


85th percentile speed is more than 98th percentile speed


97 Bankelman beam deflection method is used for design of

Rigid overlay on rigid pavement


Flexible overlay on flexible pavement


Rigid overlay on flexible pavement


Flexible overlay on rigid pavement


98 Bituminous surfacing done on already existing impervious pavement, is known as

Prime coat Seal coat


Tack coat Wear coat


99 Desire Lines are plotted III

Traffic volume studies Speed studies


Accident studies Origin and Destination studies


100 The best angle in angle parking, considering the road obstruction and the convenience of driver, is
30 degree 45 degree 60 degree 90 degree 15
1/11111111111111111 [eontd...

SPACE FOR ROUGH WORK



16

•