TDC-41588-A [Turn over
ROUGH WORK

1. Internal forces in every cross section in an arch are

Normal thrust and shear force


Shear force and bending moment


Normal thrust and bending moment


Normal thrust, shear force and bending moment


2. If an element is subjected to pure shearing stress then maximum principal stress is equal to
2t xy t
xy

1
2
t 2
xy xy
3. If a prismatic member with area of cross section is subjected to a tensile load then the maximum shear stress and its inclination with the direction of load respectively are

P/A and 45º P/2A and 45º


P/2A and 60º P/A and 30º


4. The stiffness of a helical spring is expressed as

Load per unit length Load per unit deflection


Load per unit diameter Deflection per unit load


2
1
e m For a circular column having its ends hinged, the slenderness ratio is 160, the l ratio of the
column is

80 57


40 20


6. A prismatic bar of volume V is subjected to a compressive force in the longitudinal direction. If the Poisson's ratio of the bar is m and the longitudinal strain is e then the final volume of the bar will be
2
e me)V
(1 e 1 me)2V e 1 me)2V
7. The resultant cuts the base of the circular column of diameter d with an eccentricity equal to d/4. The ratio between the maximum compressive stress and the maximum tensile stress is

5 Infinity
8. The shafts are designed on the basis of

strength rigidity


either of the above both


9. The maximum deflection of a fixed beam carrying central load W is equal to

WL3/48EI WL3/96EI


WL3/192EI 5WL3/384EI


10. The shear stress distribution over a rectangular cross section of a beam follows

A straight line path A circular path


A parabolic path An elliptical path


11. A three hinged parabolic arch rib with hinges at abutments and at crown is under the action of udl w per unit length over its entire span L through its crown, the bending moment at quarter span is

0 wL2/8


wL2/12 wL2/24


12. The ratio of intensity of stress in case of a suddenly applied load to that in case of a gradually applied load is

0.5 1


2 More than 2


13. Thin cylinders are frequently required to operate under pressure up to

5 MN/m2 15 MN/m2


30 MN/m2 250 MN/m2


14. A fixed beam of uniform section is carrying a point load at its mid span. If the moment of inertia of the middle half length is now reduced to half its previous value then the fixed end moment will

increase decrease


remain constant change their directions


15. Due to some point load anywhere on a fix beam the maximum free bending moment is the sum of fixed end moment is

M 1.5 M


2.0 M 3.0 M


16. Which of the following pairs is not correctly matched

Lame's constant thick cylinder Macaulay's method deflection of beams


Euler's method theory of columns Eddy's theorem torsion of shafts


17. If the diameter of the shaft subjected to torque alone is doubled, then the horse power P can be increased to

16 P 8 P


4 P 2 P


18. In an experiment it is found that the bulk modulus of a material is equal to its shear modulus, the Poisson's ratio of the material is

0.125 0.250


0.375 0.500


19. For vertical columns of the same material, height and weight have the same end conditions. The buckling load will be the largest for a column having a cross section of a/an

Solid square Thin hollow circle


Solid circle I-section


20. A linear arch has

Normal thrust only Shear force only


Bending moment only Normal thrust and shear force


21. A hollow shaft will transmit power than a solid shaft of same weight and material.

Less Same


More None of the above


22. The horizontal thrust due to rise in temperature in a semi circular two hinged arch of radius R is proportional to

1/R 1/R2
23. A cantilever beam AB fixed at A and carrying a load W at free end B is found to deflect by d at the midpoint of AB. The deflection of B due to load W/2 at the midpoint will be

2d d


d/2 d/4


24. When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would

Change from compression to tension Change from tension to compression


Always be compression Always be tension


25. The moment at the intermediate support of a two span continuous beam of 6 m each with simple supports at the ends carrying a udl of 20 kN/m over only the left span is (flexural rigidity is same for both spans)

90 kNm hogging 45 kNm hogging


45 kNm sagging zero


26. The following methods are used for structural analysis

Macaulay's method


Column analogy method


Kani's method


Method of section
Those used for indeterminate structure analysis would include



1 2 1 3


2 3 3 4


27. In a Two hinged arch an increase in temperature induces

No bending moment in the arch rib


Uniform bending moment in the arch rib


Maximum bending moment at the crown


Minimum bending at the crown


28. The graphical method of determining the forces in the members of a truss is based on

Method of joints Method of sections


Either method None of the two methods


.2y
29. If y is force, and x is velocity then dimensions of are
.x2

M1 LºT1 M1 L-1T0


M1 L-1T1 M1 LºT-3


30. When a body slides down an inclined surface the acceleration of the body is given by

g g sin .


g cos . g tan .



TDC-41588-A
31. Different grades are joint together by

compound curve vertical curve


reverse curve transition curve


32. The tilt displacement in an aerial photograph is radial from

plumb point isocentre point


principal point nadir point


33. In a parabolic vertical curve, the rising grade g1 the falling grade g2 0.7%. The rate of change of grade is 0.05 per chain. The length of vertical curve is

30 chains 40 chains


50 chains 60 chains


34. If 'fore-bearing' of a line is S 49º52' E (assuming there is no local attraction), the 'back-bearing' of the line will be

S 52º E S 49º E


N 49º08' E N 49º E


35. A lemniscate curve between tangents is transitional throughout, the polar deflection angle of its apex is equal to is the deflection angle between initial and final angles):

./2 ./4


./6 .


36. An observer standing on the deck of a ship just sees the top a lighthouse which is 30 mt.s above sea-level, if the height of the observer's eye is 10 mt.s above sea-level, then the distance of the observer from the lighthouse will be nearly

22.5 km 24.3 km


33.3 km 59.7 km


37. Which one of the following methods estimates best the area of an irregular and curved boundary

Trapezoidal method Simpson's method


Average Ordinate method Mid-Ordinate method


38. In setting out a long straight line for the erection of the transmission towers, it is recommended that the forward point be set out with both face right and face left, with reference to the preceding point and mean position be taken. This field procedure eliminates the instrumental error where the

Trunnion axis is not perpendicular to the vertical axis


Vertical axis is not perfectly vertical at the time of observation


Line of collimation is not perpendicular to vertical axis


Line of collimation is not perpendicular to horizontal axis


39. If the downhill end of a 20 m tape is held 80 cm too low, then its horizontal length will be

19.894 m 19.984 m


20.016 m 20.984 m


40. If in a triangle ABC, b 300 .ABC 60º, then the radius of circular curve passing through the points B and C will be

86.6 m 100 m


173.2 m 300.6 m


41. The back-sight reading on a vertically held staff at a point A on the floor along the central line of a railway tunnel is 3.465 and the fore-sight of inverted staff held at the roof of the tunnel, just vertically above A is 1.155 m. The height of the tunnel along the central line at floor point A is

2.310 m 3.465 m


4.620 m 6.930 m


42. A plan of an area drawn with the original scale of 1 cm 10 has shrunk such that a line, originally 15 cm long on the plan, measures now 14.5 cm. The shrunk scale is given by 1 cm is equal to

0.97 m 9.70 m


10.34 m 10.97 m


43. The length of transition curve for a circular curve of radius 300 m and for a design speed of 15 when the rate of change of centrifugal acceleration is 0.3 m/s3 is

30 m 37.5 m


45 m 60 m


44. When the bubble of a level tube was moved by 10 divisions, the change in staff intercept was
0.05 m. If the distance between the staff and the instrument was 100 then the sensitiveness of bubble tube is given by

1.03 sec of arc 10.3 sec of arc


20.6 sec of arc 103 sec of arc


45. If the azimuths of two tangents to a circular curve of radius 100 m are due north and due east, then the area bounded by two tangents and circular curves will be

7857 sq m 5000 sq m


3143 sq m 2143 sq m


46. Which of the following statements about photogrammetric surveying is correct The relief displacement

Decreases with increase in flying height


Is negative for a point above datum


Decreases as distance of the object from principal point increases


Of the point is not affected by the tilt of the photograph


47. Which one of the following instruments is used in plane table surveying for the measurement of horizontal and vertical distances directly

Plain alidade Telescopic alidade


Tachometer Clinometers


48. Deflection angle between the tangents drawn at the ends of a transition curve is 7º. The radius of the curve at the end is 400 m. What is the length of the transition curve

60 m 97.74 m


120 m 150 m


49. If parallax difference between the top and bottom of tree is measured as 1.32 mm on a stereo pair of photos taken at 3000 m above ground and the average photo base is 66 then the height of the tree will be

45.49 m 60.00 m


23.51 m 39.50 m


50. A star culminates in zenith when
d . d .
d . d .
where d declination and . latitude

51. A 30 m long steel tape is standardized with a pull of 100 was used for measuring a baseline of length 1500 the pull exerted while measuring is 150 N. The correction Cp due to pull is given by (the area of cross-section of tape Young's modulus

100 × 1500/AE 1500 × 150/AE


50 × 1500/AE 250 × 1500/AE


52. Excavation is to be made for a reservoir measuring 20 m long, 12 m wide at the bottom and 2 m deep. The side-slopes are to be 1:1 and the top to be flush with the ground which is level in the vicinity as per prismoidal formula, the volume of excavation will be

610.33 m3 618.66 m3


625.00 m3 633.66 m3


53. Which one of the following specifications for length of base line refers to Third Order Triangulation System

5 to 3 km 1.5 to 5 km


5 to 15 km 10 to 20 km


54. If R is the radius of the main curve, . is the angle of deflection, S is the shift and L is the length of the transition curve, then the total tangent length of the curve is given by

tan ./2 L/2 tan ./2 L/2


tan ./2 L/2 tan ./2 L/2


55. The representative fraction 1/2500 means that the scale is 1 cm

.25 m 2.5 m


25 m 2.5 km


56. The ratio of the "standard error if a single observation of a unit weight" to the standard error of the arithmetic mean of observations, all of unit weight, will be

1/n n2


3vn vn


57. The number of independent conditions required to be satisfied for the adjustment of a braced quadrilateral in triangulation survey is

8
58. In a close traverse, the sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures. The closing line will lie in the

N-W quadrant N-E quadrant


S-E quadrant S-W quadrant


59. A 30 m metric chain is found to be 0.1 m too short throughout the measurement. If the distance measured is recorded as 300 then the actual distance will be

300.1 m 301.0 m


299 m 310.0 m


60. Offsets are

Lateral measurements made with respect to main survey lines


Perpendiculars erected from chain lines


Taken to avoid walking between stations


Measurements which are not made at right angles to the chain lines.


61. Sheep foot rollers are recommended for compacting

granular soil cohesive soil


hard rock any type of soil


62. Negative skin friction in a soil is considered when the pile is constructed through a

fill material dense coarse sand


over consolidated stiff clay dense fine sand


63. The flow-net is drawn to obtain

Seepage, coefficient of permeability and uplift pressure


Coefficient of permeability, exit gradient and uplift pressure


Exit gradient, seepage quantity and uplift pressure


Exit gradient, seepage, coefficient of permeability


64. The critical hydraulic gradient ic of a soil mass of specific gravity g and void ratio e is given by
G G
ic ic
e e
G G

ic ic
e 1- e
65. The correct increasing order of the surface areas of the given soil is

silt, sand, collides, clay Sand, silt, collides, clay


Sand, silt, clay, collides Clay, silt, sand, collides


66. Given that for a single degree of freedom system k stiffness coeff. m mass of machine and foundation Critical damping is best defined by the expression
2
km 2k
m

2pk
1/m 2p
k/m


67. Terzaghi's equation of ultimate bearing capacity for a stripped footing may be used for square footing resting on pure clay soil with the correction factor

0.4 0.6


1.2 1.3


68. Undisturbed soil samples are required for conducting

Hydrometer test Shrinkage limit test


Consolidation test Specific gravity test


69. When the degree of consolidation is 50% the time factor is about

0.2 0.5


0.6 2.0


70. A soil having particles of nearly the same size is known as

well graded uniformly graded


poorly graded gap graded


71. The unit weight of a soil at zero air voids depends on

specific gravity water content


unit weight of water all of the above


72. The soil most susceptible to liquefaction are

saturated dense sand


saturated fine and medium sands of uniform particle size


saturated clays of uniform size


saturated gravels and cobbles


TDC-41588-A
73. Degree of freedom of a block type machine foundation is

6
74. Terzaghi's bearing capacity factor Nc, Nq and N. are functions of

cohesion only


angle of internal friction only


both cohesion and angle of internal friction


none of the above


75. In consolidation testing, curve fitting method is used to determine

Compression index Swelling index


Coeff. of consolidation Time factor


76. By using sieve analysis, the particles size distribution curve has been plotted for a particular soil, the coeff. of curvature Cc is given by
D30
D30

DD DD
30 10 60 10
2
D30 D30



D60D10 D60D10
77. Lacustrine soils are soils

Transported by rivers and streams Transported by glaciers


Deposited in sea beds Deposited in lake beds


78. The configuration of flow net depends upon

The permeability of the soil


The difference in the head between upstream and downstream sides


The boundary conditions of flow


The amount of seepage that takes place


79. In a Mohr's diagram a point above Mohr's envelope indicates

Imaginary condition Safe condition


Imminent failure condition Condition of maximum obliquity


80. A good quality undisturbed soil sample is one which is obtained using a sampling tube having an
area ratio of

16%


24% 32%


81. A sample of soil has the following properties Liquid limit 45% Plastic limit 25% Shrinkage limit 17% Natural moisture content 30% The consistency index of the soil is

15/20 13/20


8/20 5/20


82. According to Rankine's analysis minimum depth of foundation is equal to
2 2
f

f

..
.

..
.

..
.

..
.

1sin sin


q
q




.



.

f

1

sin sin
f



..
.

..
.

..
.

..
.

1 sin
1

sin


q
q




.



.

f

1

sin sin
83. Passive earth pressure in a soil mass is proportional to

tan2 (45


tan2 (45 cot2 (45
where µ is Poisson's ratio and f is the effective angle of internal friction.



84. For a base failure, the depth factor Df is

0 Df Df 1
85. Rise of water table in cohesion-less soil up to ground surface reduces the net ultimate bearing capacity approximately by

25% 50%


75% 90%


86. In a saturated clay layer undergoing consolidation with single drainage at its top the pore water pressure would be the maximum at its

top middle


bottom top as well as the bottom


87. A cantilever sheet pile drives its stability from

lateral resistance of soil self weight


dead weight the anchor rod


88. The time required for attaining a certain degree of consolidation of a clay layer is proportional to

H2 and Cv H2 and 1/Cv


1/H2 and Cv 1/H2 and 1/Cv


89. The upstream slope of an earth dam under steady seepage condition is

equi-potential line phreatic line


flow-net seepage flow


90. In the soil sample of a consolidometer test, pore water pressure is

minimum at the centre maximum at the top


maximum at the bottom maximum at the centre


91. Centre of buoyancy always

Coincides with the centre of gravity


Coincides with the centroid of the volume of fluid displaced


Remains above the centre of gravity


Remains below the centre of gravity


92. The increase in metacentric height
1.
Increases stability

2.
Decreases stability

3.
Increases comfort for passengers

4.
Decreases comfort for passengers
The correct answer is




1 and 3 1 and 4


2 and 3 2 and 4


93. When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

4/3 2
94. Streamlines and path lines always coincides in case of

Steady flow Laminar flow


Uniform flow Turbulent flow


95. The pitot-tube is used to measure

Velocity at stagnation point Stagnation pressure


Static pressure Dynamic pressure


96. The discharge through a V-notch varies as
H1/2 H3/2

H5/2 H5/4

where H is head.

97. The pressure at the summit of the siphon is

equal to atmospheric less than atmospheric


more than atmospheric none of the above


98. If X is the distance from leading edge, then the boundary layer thickness in laminar flow varies as
X1/2 X4/5

X3/5 X1/7

99. For shooting flow the Froude number is

0 Less than 1


1 Greater than 1


100. If isthe friction factor, then Chezy's coefficient is proportional to

f vf


1/f 1/vf


101. The critical state of flow in a non-rectangular channel is expressed by
2 23
yc )13
Q A
g gT
32 2
QA QA

3
gT gT
102. Flow through a venturi-flume is maximum when the depth at the throat is

Half 1/3


2/3 Equal to the total energy of the flow


103. Super critical flow can occur in a

Channel with a mild slope Channel with a steep slope


Horizontalchannel All of the above


104. Which one of the following velocity fields represents a possible fluids flow

U v y U x2; v y2


xy; v x2y2 U v y


105. A model of reservoir is emptied in 10 min. If the model scale is 1 25, the time taken by the prototype to empty itself would be

250 min 50 min


6250 min 2min


106. A model of weir made to a horizontal scale of vertical scale of discharges 1 liter per second. Then the discharge in the prototype is estimated as

1 lps 108 lps


1080 lps 10800 lps


107. In a 2-D incompressible flow if the fluid velocity components are given by u x v y 4x, then the stream function . is given by

x2 xy 2y2 2x2 2xy y2


2x2 xy y2 2x2 xy 2y2


108. Absolute pressure in a flow system

Always above local atm. pressure


Is the vacuum pressure


May be above, below or equal to the local atm. Pressure


Also called negative pressure


109. Normal acceleration in a fluid flow situations exist only when

The flow is 2-D The flow is unsteady


The streamlines are curved None of the above


110. The velocity potential function for a source varies with distance r as

1/r 1/r2


er 1n r


111. The change in moment of momentum of fluid due to flow along a curved path results in

a dynamic force which passes through the centre of curvature


a torque


a change in pressure


a change in the total energy


112. The flow in the model prototype will be dynamically similar when

the forces in the two systems are the same


the two are geometrically similar


the two are kinematically similar


the forces at similar points in the two systems have the same ratio throughout the flow field


113. The turbulent flow is considered steady when

the discharge remains constant


temporal mean velocity at a point remains constant with time


the velocity at point doesn't change with time


the algebraic sum of velocity fluctuations is zero


114. For the laminar boundary layer, its thickness is expressed as the following relationship

d 5x/ vRx d .664x/ vRx


d .664x/ Rx0.20 d 1.75x/ vRx
where Rx U8x/v is the plate Reynolds no.



TDC-41588-A
115. Uniform flow in open channel is characterized by

a changing depth of flow aconstant discharge passing down the channel


a constant depth of flow a constant slope of channel bottom


116. The rapid closure of wall in a water pipeline will result in water hammer pressure of magnitude

.C2V .CV2


.C/V .CV


117. The pressure wave in a fluid medium travels as a sound wave, the velocity of which is given by
E

C C
.k
.
EC C
. E
.
118. The pressure drop per unit length of pipe in laminar flow is dependent on the velocity, viscosity and the diameter. It is equal to
d2
32µV
32µV d2
32µVL 8µV

.d2 d2
119. The existence of boundary layer is on account of

fluid viscosity fluid density


flow turbulence surface tension


120. Coefficient of velocity for Borda's mouthpiece running full is

0.611 0.707


0.855 1.00


ROUGH WORK