1. In case of gravity dam of base width if the resultant passes with an eccentricity of what will be ratio of maximum compression stress and maximum tensile stress:

infinity

0

1

6

2. If the Froude number of a hydraulic jump is more than this jump is classified as:

Weak jump

Strong jump

Oscillating jump

None of these

3. Discharge Q in a triangular weir varies as :H1.5

H

H1.5

H0.5

H2.5

4. In a confined aquifer, one of the following condition occurs:

Water surface under the ground is at atmospheric pressure

Water table serves as upper surface of zone of saturations

Water is under pressure between two impervious strata

None of above

5. A rectangular open channel carries a discharge of 15 cumecs at depth of flow as 1.5 m and bed slope as 1:1440. If only slope is changed to 1:1000 with same depth of flow, discharge will be:

21.6 cumecs

18.0 cumecs

14.4 cumecs

12.5 cumecs

6. For a uniform flow with depth of 0.6 m and Froude number of 2.0 in a rectangular channel, the specific energy will be

0.8 m

2.6 m

4.8 m

1.8 m

7. In a horizontal rectangular channel, the conjugate depths of flow before and after the hydraulic jump are observed as 0.25 m and 1.25 the energy loss due to jump will be:

0.80 m

1.00 m

1.25 m

1.50 m

8. The discharge through a notch varies as:H1/ 2

H1/2

H

H3/2

H5/2

9. A trapezoidal channel with a base width of 5 m and side slope (2H 1V) conveys water with a depth of 1.0 m at a velocity of 3.13 m/sec. The flow in the channel will be:

Unsteady

Super critical

Critical

Subcritical

10. As per IS code, the minimum grade of concrete for the design of prestressed concrete structure is:

M20

M25

M15

M30

11. In a slab, the minimum reinforcement using steel of grade Fe 415 is:

0.12% of its gross sectional area

0.20% of its gross sectional area

0.15% of its gross sectional area

0.10% of its gross sectional area

12. If nominal shear stress exceeds the design shear strength of concrete the shear reinforcement as per IS-456 will be provided for shear stress equal to:

c

v



v

13. The purpose of high tensile strength steel wires in prestressed concrete is:

To provide adequate bond stresses

To impart compressive stress in concrete

To resist tensile stresses

All the above

14. Which of the following losses occurs only in post-tensioning pre-stressed concrete structures:

Loss due to friction

Shrinkage of concrete

Creep of concrete

Elastic shortening of concrete

15. Minimum reinforcement in a circular concrete column as per IS-456 is:

4 bars of 12 mm

Greater of 0.80% of cross-sectional area 4 bars of 12 mm

6 bars of 12 mm

Greater of 0.80% of cross-sectional area and 6 bars of 12 mm

16. Span to effective depth ratio for a continuous beam with steel grade of Fe 415 should not be more than:

7

20

26

48

17. In reinforced concrete footing on soils, minimum thickness at the edge should normally not be less than....

250 mm

150 mm

100 mm

200 mm

18. The load carrying capacity of a helically reinforced column as compared to that of a tied column is about:

more

less

10% more

10% less

19. For the purpose of the design of reinforced concrete footings, pressure distribution is assumed to be:

Parabolic

Linear

Hyperbolic

None of the above

20. Hoop tension in a RCC water tank will be resisted by:

Steel alone

Concrete alone

Partly by concrete and partly by steel

None of the above

21. The factor used to account for the difference in strength indicated by cube test and the strength of concrete in structures:

0.67

0.87

1.15

1.87

22. The working stress method of design of RC members is known as:

Non-deterministic approach

Deterministic approach

Probabilistic approach

None of the above

23. For assessing the strength of a structure for limit state of collapse, the values of partial safety factors for concrete and steel are taken respectively as:

1.15 and 1.5

1.5 and 1.5

1.5 and 1.15

1.15 and 1.15

24. In a R.C. column, the spacing of longitudinal bars measured along the periphery of column should not exceed:

250 mm

200 mm

350 mm

300 mm

25. The value of limiting moment of resistance of a RC beam for M25 grade of concrete and Fe 500 grade of steel is given by (Notations have their usual meaning):

3.33 bd2

3.38 bd2

3.35 bd2

3.44 bd2

26. A square column section of 350 mm x 350 mm is reinforced with four bars of 25 mm diameter and four bars of 16 mm diameter. The transverse reinforcement will be:

5 mm dia 240 mm c/c

8 mm dia 300 mm c/c

6 mm dia 350 mm c/c

8 mm dia 500 mm c/c

27. In case of a one way slab, the main reinforcement is provided:

Along longer span

Both along shorter and longer span

Along shorter span

50% on the shorter span and 50% on longer span

28. If a beam fails in bond, its bond strength can be increased most economically by:

Using thinner bars but more in number

Increasing the depth of beam

Using thicker bars but less in number

Providing vertical stirrups

29. In a circular water tank if D is the diameter of the tank, H is depth of water with flexible joints at the base. If Y is the specific weight of water, the hoop tension at the base of wall is:

YHD

YHD/2

YHD/3

YHD/4

30. An isolated beam is used on walkwaay. The beam is simply supported with an effective span of 6m. Effective width of flange for shown figure is

1000 mm

1100 mm

1260 mm

2200 mm

31. A singly reinforced concrete beam of 300 mm width and 750 mm effective depth is provided with 2000 mm2 steel. If the modular ratio is 15, the depth of neutral axis will be:

200 mm

350 mm

300 mm

400 mm

32. A prestressed concrete beam of size 300 mm x 900 mm is prestressed with an initial pre stressing force of 810 kN at an eccentricity of 360 mm at mid span. Stress at the top fibre due prestress alone :Tension, Compression):

N/mm2

-7.2 N/mm2

+10.2 N/mm2

-4.2 N/mm2

33. Raft foundation is useful where:

Soil having low bearing capacity

Heavy loads are transferred through columns

Super structure is sensitive to differential settlement

All the above

34. In the case of columns of minimum dimension of 200 mm or under, whose reinforcing bars do not exceed 12 mm, a nominal cover may be provided:

40 mm

25 mm

20 mm

50 mm

35. In limit state method of design for RCC flexural members, the centre of gravity of the compressive force acting on the section from the top most fibre of concrete is at a distance of:

0.36 of the depth of neutral axis

0.57 of the depth of neutral axis

0.42 of the depth of neutral axis

None of the above

36. In a doubly reinforced concrete beam, if is the effective cover to compression reinforcement, xm is depth of neutral axis, the strain at the level of compression reinforcement is given

<img src='./qimages/3399-36.jpg'>

37. The maximum depth of neutral axis in a RC beam for Fe 415 grade of steel is

0.53d

0.46d

0.67d

0.48d

38. The maximum strain in steel bars in tension zone of R.C. beam is given by Where symbols have their usual meaning)
<img src='./qimages/3399-38.jpg'>
39. For a T beam, the minimum tension reinforcement should not be less than that given Where symbols have their usual meaning)

<img src='./qimages/3399-39.jpg'>

40. As per IS 456:2000, the modulus of elasticity of concrete can be assumed as:
<img src='./qimages/3399-40.jpg'>

41. The fixed support in a real beam becomes in the conjugate beam as:

Roller support

Hinged support

Fixed support

Free support

42. If a composite bar of steel and copper is heated, the copper bar will be under:

Shear

Tension

Compression

Torsion

43. A three-hinged symmetrical arch is loaded as shown in the figure below. Which one of the following is the magnitude of the correct horizontal thrust? 1.5 m 2 P A B4 m 4 m 5 m 3
<img src='./qimages/3399-43.jpg'>

2.66 P

2 P

1.5 P

0.75 P

44. The deflection at the mid span of beam AB by unit load method will be:A B L EI Constant

<img src='./qimages/3399-44.jpg'>

wL4 128EI

wL4 384EI

5wL4 128L

None of above

45. What are the bending moments at ends A AND B of uniform fixed beam AB as shown in and figure when two concentrated loads acts at 3 spans

<img src='./qimages/3399-45.jpg'>
46. A beam is hinged at end A and fixed at B . If moment M is applied at end A the moment developed at end B will be:

M

M

M/2



47. For the following cantilever beam as shown in figure, the change in clockwise slope between B by moment area theorem will be

<img src='./qimages/3399-47.jpg'>

wL2/4EI

M/EI

wL2/2EI

None of the above

48. The shear stress on a beam section is maximum

On the extreme bottom surface fibres

At the neutral axis of the section

At the free edges

On the extreme top surface fibres

49. A simply supported beam with rectangular cross section is subjected to a concentrated load at mid span. If the width and depth of beam are doubled, the deflection at mid span will be reduced to:

6.25%

12.5%

50%

25%

50. What is the deflection at the mid span for the simply supported beam shown in figure:P
<img src='./qimages/3399-50.jpg'>

0

PL3 3EI

PL3 48EI

PL3 96EI

51. The forces in the members AC and AB for the truss shown below will be respectively tension, compression):

<img src='./qimages/3399-51.jpg'>
P/cos 60 and P tan 60

P/cos 60 and zero

zero and P tan 60

zero and zero

52. The effective length of a column of length L fixed against rotation and translation at one end whereas the other end is free, is:L

<img src='./qimages/3399-52.jpg'>
0.5 L

0.7 L

2 L

1.414 L

53. Section modulus for hollow circular section of outer diameter and inner diameter is:p

PIE/64D(D4 d4)

(D4 d4) 64D

(D3 d3)

(D3 d3)

54. The maximum bending moment in a beam under a wheel load caused by a train of moving load, is

When this wheel and the C.G. of the total load system are equidistant from the ends of the beam.

Always at the centre

Closest to CG of loads

None of above

55. For a statically indeterminate pin jointed plane frame, the relation between number of and number of joints is expressed as:

m 3j 6

m 2j 3

m 2j 3

m 3j 6

56. Bulk modulus is defined as ratio of:

Direct stress and volumetric strain

Longitudinal stress and shear strain

Shear stress and shear strain

Volumetric stress and volumetric strain

57. What is the ordinate of influence line at for reaction RD as shown in following figure:

<img src='./qimages/3399-57.jpg'>

0.4

0.2

0.5

Zero

58. Influence line diagrams can be drawn for:

Only beams

Beams, arches, trusses etc.

Only arches

Only trusses

59. In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always:

Zero

Less than 1

Greater than 1

1

60. In column Analogy method, the area of an analogous column for fixed beam of span and flexural rigidity is taken as:

L/EI

L/2EI

L/3EI

L/4EI

61. The strain energy stored in a member due to bending moment M is given by:

<img src='./qimages/3399-61.jpg'>

Where symbols have their usual meanings

62. A rigid jointed plane frame as shown below will have:

<img src='./qimages/3399-62.jpg'>

Sway to right

Sway to left

Not sway

None of above

63. The slope deflection in structural analysis fall in the category of:

Force method

Flexibility method

Consistent deformation method

Stiffness method

64. In a two hinged parabolic arch an increase in temperature will

Decrease the horizontal thrust

Increase the bending moment

Increase the horizontal thrust

Make no change in horizontal thrust

65. The pin jointed frame as shown in following figure is:

<img src='./qimages/3399-65.jpg'>
A perfect frame

A redundant frame

A deficient frame

None of above ESE-004 Series-A

66. The bending moment diagram for a cantilever whose free end is subjected to a point load will be of shape:-

Triangle

Parabola

Rectangle

Cubic Parabola

67. The ratio of theta A and theta B for beam as shown will

1 2

2 1

1 1

1 3

68. The degree of static indeterminacy NS and the degree of kinematic indeterminacy, Nk for the plane frame as shown neglecting axial deformation are given

<img src='./qimages/3399-68.jpg'>
NS Nk 11

NS Nk 6

NS= Nk 6

NS Nk 4

69. A fixed beam of span is subjected to a uniformly distributed load w per unit length. If beam has constant flexural rigidity, the fixed end moment

wL2 4

wL2 6

wL2 8

wL2 12

70. Which of the following statement is correct for flexibilty method of analysis:-

The method is used to analyse determinate structures.

The method is used only for manual analysis of indeterminate structures.

The method is used for analysis of indeterminate structures with lesser degree of static indeterminacy.

The method is used to analyse flexible structures.

71. Rankine's formula is used for the analysis of steel compression member if the slenderness ratio l/r

120 l/r 200

200 l/r 250

100 l/r 150

None of above

72. In plate girders, the web plate is provided with stiffness when the ratio of clear depth to thickness of web is greater than

58

85

68

75

73. In plastic design of structures, if degree of statical indeterminacy is the numbers of hinges required to convert the structure into mechanism is given by:

p i 3

p i 2

p i 1

None of above

74. Allowable average shear stress in an un-stiffened web for beams made of steel of grade 250 N/mm2 is:

250 N/mm2

165 N/mm2

150 N/mm2

100 N/mm2

75. A steel plate of 300 mm width and 10 mm thick has the diameter of the bolt hole as 20 mm. The net section of the plate is:

1800 mm2

2800 mm2

3000 mm2

2700 mm2

76. If is the moment of inertia of the rolled beam section, is the area of cover plates in one flange and is the distance between the centroid of the top and bottom flange plates, moment of intertia of builtup plate girder is given by:2

<img src='./qimages/3399-76.jpg'>

77. If is maximum moment in the plate girder, is allowable bending stress and is the thickness of web, Economical depth for a plate girder is given by:

route(M/P) *tw

1.2 route(M/P) *tw

1.1 route M/(P.tw

1.3 route(M/P) *tw

78. Normally, the pitch of roof truss with asbestos sheets should not be less than:11

1/2 of span

1/4 of span

1/7 of span

1/12 of span

79. Gantry girders are designed to resist

Lateral loads

Lateral, longitudinal and vertical loads

Longitudinal and vertical loads

Lateral and longitudinal loads

80. As per IS code, the maximum pitch of rivets in compression flange (thickness of a built up beam is:

Lesser of 200 mm and 12t

Lesser of 250 mm and 12t

Lesser of 200 mm and 16t

Lesser of 250 mm and 16t

81. In a plate girder, bending moment is primarily resisted by:

Web plate

Flange plate only

Flange angle only

Flange plate and flange angle

82. The gross diameter of a rivet is the diameter of

Rivet hole

Rivet measured before driving

Rivet measured after driving

None of the above

83. Which of the following sections will have large shape factor:

Diamond

Rectangle

I-section

Solid circular section

84. Which of the following sections should preferably be used at places where torsion occurs?

Angle section

Box type section

Channel section

None of the above

85. Load factor is defined as:

Ultimate load yield load

Yield load working load

Ultimate load working load

None of the above

86. The effective length of a column, held in position and restrained in direction at one end and the other end is free, is equal to:

0.67 L

L

1.2 L

2.00 L

87. The permissible bending stress in the slab base of steel columns for all grades of steel is limited to:

185 N/mm2

165 N/mm2

175 N/mm2

200 N/mm2

88. The members which support covering material of a steel roof truss are:

Rafters

Purlins

Struts

Batens

89. Which of the following types of the riveted joint is free from bending stress:

Butt joint with single cover plate

Lap joint

Butt joint with double cover plate

None of the above

90. The effective length of filet weld should not be less than:

Two times weld size

Six times weld size

Weld size

Four times weld size

91. For a rivet of 20 mm diameter, the diameter of hole will be taken as:

18.5 mm

21.5 mm

21 mm

19 mm

92. The value of Poisson's ratio for structural steel in the elastic range is taken as:

0.3

0.2

0.15

0.50

93. In upper bound theorem plastic analysis for a given frame subjected to a set of loads the value of P which is found to correspond to any assumed mechanism must be:

Greater than the collapse load Pu

Less than the collapse load Pu

Either greater than or equal to collapse load Pu

None of the above

94. The plastic theory is generally used for:

Columns only

Beams only

Roofs only

Rigid frame structures

95. Which of the following elements of a pitched roof industrial steel building primarily resist lateral load parallel to the ridge?

Purlins

Bracings

Truss

Columns

96. Two flats (110mm x 16mm) and (110mm x 12mm) are welded by V butt weld. If permissible stress is 142 N/mm2, the strength of weld will be:

167.75 kN

195.56 kN

187.44 kN

210.25 kN

97. Factor of safety is the ratio of

Yield stress and working stress

Tensile stress and working stress

Compressive stress and working stress

Bearing stress and working stress

98. The load factor applied to dead loads or live loads in the design of steel structures is:

1.3

1.5

1.7

2.2

99. The shape factor of an I-section is:

1.04

1.14

1.70

2.00

100. In the section as shown in figure, distance of neutral axis from top is:
<img src='./qimages/3399-100.jpg'>

100 mm

200 mm

300 mm

216 mm

101. A soil sample has liquid limit plastic limit of shrinkage limit 15% for natural water content of the consistency Index for the sample is:

40%

50%

75%

60%

102. Westergaard's analysis for stress distribution beneath loaded area is applicable to:

Sandy soil

Stratified soil

Clayey soil

Silty soil

103. The permeability of following is very low:

Clay

Sand

Silt

Gravel

104. The minimum allowable factor of safety against sliding for a cantilever retaining wall is:

3.0

2.0

1.5

2.5

105. Liquifaction of sand is:

Sand enhance its shear strength due to oscillatory motion

Sand looses its shear strength due to oscillatory motion

Sand enhances its bearing capacity due to oscillatory motion

None of above

106. Darcy's law is not applicable for flow in:

Fine sands

Clays

Silts

Gravels

107. An over dried soil mass of 200 gm is placed is pycnometer and completely filled with water. Combined mass of bottle, soil and water is 1605 gm. Calculate specific gravity of soil if pycnometer with water alone has weight of 1480 gm:

2.63

2.65

2.67

2.69

108. Density Index is the term used to express relative compactness of:

Cohesionless soil only

Cohesive soil only

Cohesive and cohesionless soils

All the above

109. In laboratory, coefficient of permeability of soil is determined by one of the following methods:

Pumping-out test

Pumping-in test

Horizontal capilarity test

Constant Head test

110. Due to large leakage and flood damage problems, following type of coffer dam is not preferred:

Braced type

Cantilever sheet pile type

Cellular type

Double wall type

111. H-Piles is a type of one of the following piles:

Concrete Piles

Timber Piles

Steel Piles

Composite Piles

112. Rotation of Machine foundation about Z and X axes are respectively known as:

Yawning, Pitching and Rocking

Pitching, Yawning and Rocking

Rocking, Pitching and Yawning

Rocking, Yawning and Pitching

113. A cohesive soil yields a maximum dry density of 16 kN/m3 during a standard Proctor Compaction test. What would be its void ratio if the specific gravity is 2.60:

0.552

0.625

0.712

0.583

114. The water content of a soil remains unchanged during the entire test in:

Drained test

Consolidated undrained test

Unconsolidated undrained test

None of these

115. If the porosity of a soil sample is void ratio for this sample would be:

0.50

0.70

0.60

None of the above

116. The permeability of a soil sample depends upon:

Size of the particles



Void ratio

Shape of the particles All of the above

117. If the value of uniformity coefficient of a soil sample is nearly equal to one. This sample will be designated as:

Well graded soil

Uniformly graded soil

Poorly graded soil

None of the above

118. If a soil sample is dried beyond its shrinkage limit, this sample will show:

No volume change

Moderate volume change

Low volume change

Large volume change

119. The void ratios at the densest, loosest and the natural states of a sand deposit are 0.2, 0.6 and 0.4 respectively. Relative density for this deposit will be:

90%

80%

50%

25%

120. The process by which the soil particles are artificially rearranged into a closer state of contact by mechanical means in order to decrease the porosity, is known as

Consolidation

Compaction

Settlement

None of the above

121. The relation between void ratio water content specific gravity and degree of saturation for a soil sample is:

e WG/Sr

e W Sr/ G

e W/G SR

None of the above GSr

122. Undisturbed soil samples are obtained by:

Thick walled samplers

Direct excavations

Thin walled samplers

Augers

123. A soil sample has bulk density of 21 kN/m3 and water content 8%. Dry density of the sample is:

19.00 kN/m3

18.44 kN/m3

22.68 kN/m3

19.44 kN/m3

124. A load of 4000 kN is uniformly distributed over an area of 3m x 3m. Average vertical stress at a depth of 2m below will be (assuming 2 vertical 1 horizontal distribution):

250 kN/m2

160 kN/m2

200 kN/m2

220 kN/m2

125. The permeability of a soil sample will if entrapped air is present in the sample:

Decreased

Unaffected

Increased

None of above

126. Most suitable method for drainage of fine grained soil is:

Well point system

Vacuum method

Electro-osmosis method

Deep well system

127. A cantilever sheet pile derives its stability from:

Self-weight of sheet pile

Lateral resistance of soil

Anchor road

None of the above

128. If a weak plane exists above the toe of typical slope, the probable failure of the slope is expected as (considering the stability of the slope):

Slope failure

Base failure

Transitional failure

Toe failure

129. According to Terzaghi's equation, the bearing capacity of strip footing resting on cohesive soil =10kN/m2) per unit depth and unit width (Nc 5.7) will be:

47 kN/m2

67 kN/m2

57 kN/m2

77 kN/m2

130. The maximum differential settlement in isolated footings on sandy soils shall not exceed:

40 mm

100 mm

65 mm

25 mm

131. The major loss of hydraulic energy in pipe flow occurs in long pipe due to:

Sudden enlargement

Friction

Sudden contraction

Gradual enlargement or contraction

132. The best hydraulic channel cross-section should have:

Least cost

Minimum wetted perimeter

Maximum area for a given flow

Minimum roughness coefficient

133. The conditions for the flow of fluid in Bernoulli's equation are assumed as:

Steady, incompressible and ideal

Steady, irrotational and uniform

Steady, uniform and incompressible

None of the above

134. The Gases are considered incompressible if Mach number

0.50

0.30

1

0.20

135. The type of vortex for the flow of water in a wash basin, when it is being emptied through a central opening, is called:

Forced vortex

Rotational vortex

Free vortex

Rankine vortex

136. The expression for kinematic viscosity of a fluid is:

Dynamic viscosity x density

Dynamic viscosity density

Dynamic viscosity x pressure

None of above

137. Choose the most correct statement for pipe in series problems:

The discharge is same through each pipe

The discharge through each pipe is additive to total discharge

The head loss is the same through each pipe

None of the above

138. Surge tank in a pipe line is used to:

Reduce the loss of head due to friction in pipe

Make the flow uniform in pipe

Release the pressure due to water hammer

None of the above Re f

139. For turbulent flow through rough pipe, the factor Re route is (Notation have their usual R k meaning):

16

400

70

70

140. Notches are used to measure:

Flow rate

Velocity

Pressure

All above

141. In laminar flow between parallel plates, the ratio of maximum velocity and average velocity of flow is:

2.0

1.33

1.5

1.0

142. Pitot tube measures:

Pressure head only

Total head only

Velocity head only

Above all

143. The loss of energy due to sudden enlargement in a pipe is given by:

V2/2g

kV2/2g

0.5V2/2g

(Where symbols have their usual meanings)

144. A model of a spillway with scale ratio 1:9 is to be tested in a laboratory. What will be the discharging capacity of the model if the discharge over prototype spillway is 486m3/sec?

0.25m3/sec

1.0m3/sec

2m3/sec

2.5m3/sec

145. If the flow around a sphere is taking place with Reynolds Number is just greater than 500x103 the value of CD will be Drag coefficient):

0.50

0.20

0.25

0.10

146. For flows through porous media, Darcy's law is applicable when Reynold's Number is:

2

0.1

1

1

147. Cavitation in a pipe is caused when:

High velocity

Pressure approaches vapour pressure

Low velocity

None of the above

148. Continuity equation is based on the principle of:

Conservation of mass

Conservation of energy

Conservation of momentum

None of the above

149. If Vs is the tangential velocity of flow around a curved path and R is the radius of curvature, the normal acceleration for the flow will be:

Vs/R

Vs/R2

V2s/R

V2s/R2

150. A spherical particle of diameter 0.4 mm is falling in water with a velocity of 0.4 m/sec, the drag coefficient for the particle will be:

1.50

15.00

180.00

150.00

151. Moody's diagram is drawn between:

Friction factor and Reynold's number

Friction factor, Reynold's number and relative roughness

Friction factor and relative roughness

None of the above

152. To avoid an interruption in flow of a syphon, an air vessel is provided:

At the summit

At the inlet

At the outlet

At any point between inlet and outlet

153. If the conjugate depth before and after the jump are 0.5 m and 2.5 m respectively, the loss of energy in the hydraulic jump will be:

0.80 m

3.20 m

6.40 m

1.60 m

154. For a two dimensional flow, the stream function is given by y =2xy. The velocity at a point is equal to:

6m/sec

8m/sec

10m/sec

12m/sec

155. Mach number is the ratio of:

Inertia force to viscous force

Characteristic velocity to velocity of sound

Viscous force to inertia force

Velocity of sound to characteristic velocity

156. The pressure rise due to water hammer depends upon

Velocity of flow of water in pipe

Length of pipe

Time taken to close the valve

All the above

157. Dimension of the kinematic viscosity is:

L2T- 1

ML-2T-2

ML-1T-1

None of the above

158. The coefficient of discharge,Cd in terms of C v and C c is given by (Notations have their usual meaning):

Cd

Cd Cv x Cc

Cd= Cc/CV

None of the above

159. For laminar flow in a circular conduits, the energy correction factor a is taken as:

1.33

1.03

2.00

2.50

160. To study the cruising of supersonic missiles in air by using dimensional analysis technique, which of the two dimensionless numbers will be of significance:

Reynolds number and Froude's number

Weber number and Mach number

Weber number and Froude's number

Reynolds number and Mach number

161. Lining of a canal is necessary:

To prevent erosion of bed and sides due to high velocities

To minimize the seepage of losses

To increase the discharge by increasing velocity

All of the above

162. A channel designed using Lacey's theory has mean velocity of 1m/sec and silt factor of one, the hydraulic radius for channel will be:

2 m

2.5 m

1.0 m

0.50 m

163. The Purpose of cross regulator in a canal is:

To regulate water supply in the off-taking channel

To regulate water supply in the main channel

To head up water for adequate supply into the off-taking channel

To regulate excessive flood water

164. Entry of silt into the canal is controlled by:

Silt excluder

Silt extractor

Silt ejector

Head regulator

165. In the hydraulic jump, the flow condition is:

Gradually varied

Rapid

Un-steady

None of the above

166. The maximum compressive force in a gravity dam when the reservoir is full:

At the heel

At the centre of base

Within middle third of base

At the toe

167. The most adverse condition for stability of slope for the upstream face of an earthen dam is:

Steady seepage

Reservoir empty

Sudden draw down

None of the above

168. In a river, spurs are provided:

To train the flow along a specified course

To confine the width of river

To reduce the flood peak

None of the above

169. At the site where an aquaduct is constructed, the width of river is 111 m. If there are 6 piers (each of width 1 the width of water way will be:

5 m

10 m

15 m

20 m

170. Which of the following dams of India is an example of arch dam?

Tehri dam

Idukki dam

Bhakra dam

Sardarsarovar dam

171. For uniform flow in a rectangular channel which one is correct statement bed slope, Sf= energy slope, and Sw= water surface slope):

Sb Sf S w

Sb Sf S w

Sb Sf= S w

Sf Sb> S w

172. Lacey's regime equation for longitudinal slope, of canal is given by discharge, f Lacey's factor and R Hydraulic mean radius):

S f3/2 8980 R1/2

S f5/3 8990 R1/2

S f5/3 3340 Q1/6

None of these

173. A soil composed of loose granular graded material which can be scoured off with the same ease with which it is deposited is known as:

Silty loam

Incoherent alluvium

Sandy clay

Regime silt

174. The discharge per unit draw down at the well is known as:

Specific yield

Specific storage

Specific retention

Specific capacity

175. According to Khosla's theory, the exit gradient in the absence of a downstream cutoff is:

Zero

Unity

Infinity

Very large

176. In a Sarda type fall, rectangular crest is used for discharge upto:

6 cumecs

14 cumecs

10 cumecs

20 cumecs

177. If the sediment size is 0.81 mm the silt factor will be:

1.721

1.010

0.900

1.584

178. In case of non-availability of space due to topography, the most suitable spillway in this condition is:

Straight drop spillway

Chute spillway

Shaft spillway

Ogee spillway

179. If critical velocity ratio C.V.R is 2.0, one of the following will occur:

Silting in canal

Scouring in canal

Both silting scouring

None of the above

180. By using Bligh's theory for the design of floor if residual head at any section is 0.42 m and specific gravity of material is 2.4, what will be thickness of floor?

0.50 m

0.40 m

0.25 m

0.30 m