1. Rise of water table above the ground surface causes
Correct : A. Equal increase in pore water pressure and total stress
2. If the material of the base of the Casagrande liquid limit device on which the cup containing
soil paste drops is softer than the standard hard rubber, then
Correct : A. The liquid limit of soil always increases
3. A triaxial shear test is preferred to direct shear test, because
Correct : A. It can be performed under all three drainage conditions with complete control
4. The average coefficient of permeability of natural deposits
Correct : A. Parallel to stratification is always greater than that perpendicular to stratification
5. Pick up the correct statement from the following:
Correct : D. All the above
6. The shear strength of a soil
Correct : D. Decreases with decrease in normal stress
7. Pick up the correct statement from the following:
Correct : D. All the above
8. The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is
Correct : A. Vertical if the soil is in an active state of plastic equilibrium
9. A grillage foundation
Correct : D. All the above
10. Effective stress on soil
Correct : C. Decreases both voids ratio and permeability
11. Hydrometer readings are corrected for:
Correct : D. Temperature, meniscus and dispersing agent corrections
12. The ultimate consolidation settlement of a structure resting on a soil
Correct : A. Decreases with the increase in the initial voids ratio
13. Select the incorrect statement.
Correct : D. Unconfined compression test can be carried out on all types of soils
14. The angle of internal friction, is least for
Correct : D. Clays
15. Dispersed type of soil structure is an arrangement comprising particles having
Correct : A. Face to face or parallel orientation
16. The neutral stress in a soil mass is
Correct : C. Stress taken up by the pore water
17. The coefficient of compressibility of soil, is the ratio of
Correct : B. Strain to stress
18. A clay subjected to pressure in excess to its present over-burden, is said to be
Correct : D. All the above
19. Physical properties of a permeant which influence permeability are
Correct : C. Both viscosity and unit weight
20. Pick up the correct statement from the following:
Correct : D. All the above
21. Rankine's theory of active earth pressure assumes
Correct : D. All the above
22. For testing a saturated clay for shear strength, the test recommended, is
Correct : C. Unconfined compression test
23. Coefficient of permeability of soil
Correct : B. Increases with the increase in temperature
24. Pick up the correct statement from the following:
Correct : D. All the above
25. The triaxial apparatus is usually used for
Correct : D. All the above tests
26. Which one of the following clays behaves like a dense sand?
Correct : A. Over-consolidated clay with a high over-consolidation ratio
27. During seepage through a soil, direction of seepage is always
Correct : C. Perpendicular to equipotential lines
28. The seepage force in a soil, is
Correct : D. All the above
29. Pick up the correct statement from the following:
Correct : D. All the above
30. Direct measurement of permeability of the specimen at any stage of loading can be made
Correct : A. Only in fixed ring type consolidometer
31. The property of a soil which allows it to be deformed rapidly without rupture, elastic rebound and also a volume change, is known
Correct : B. Plasticity
32. Failure of the stability of slopes, generally occurs along
Correct : C. A curved surface
33. The shearing force acting along the slice of a curved surface of slippage, causes the soil to slide
Correct : A. Down at the centre
34. With the increase in the amount of compaction energy
Correct : B. Optimum water content decreases but maximum dry density increases
35. Soils containing organic matters
Correct : A. Are of spongy nature
36. Buoyant unit weight equals the saturated density
Correct : D. Minus unit weight of water
37. The change of moisture content of soils, changes the
Correct : D. All the above
38. Skempton's pore pressure coefficient B for saturated soil is
Correct : A. 1
39. The density of soil can be increased
Correct : D. All the above
40. Pick up the correct statement from the following:
Correct : D. All the above
41. Pick up the correct definition from the following:
Correct : D. All the above
42. Shear strength of a soil is a unique function of
Correct : A. Effective stress only
43. 260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is
Correct : B. 18.2 %
44. The angle that Coulomb's failure envelope makes with the horizontal is called
Correct : A. Cohesion
45. A flow net may be utilised for the determination of
Correct : D. All the above
46. The compression index of a soil
Correct : B. Increases with an increase in the liquid limit
47. If the coefficient of the active pressure Ka is 1/3, the coefficient of passive pressure Kp, is
Correct : D. 3
48. Sensitivity of a soil can be defined as
Correct : B. Ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
49. The intensity of active earth pressure at a depth of 10 metres in dry cohesionless sand with an angle of internal friction of 30° and with a weight of 1.8 t/m3, is
Correct : C. 6 t/m2
50. The soil moisture driven off by heat, is called
Correct : B. Hydroscopic water
51. Plasticity index is defined as the range of water content between
Correct : A. Liquid and plastic limit
52. Bishop's method of stability analysis
Correct : C. Assumes the slip surface as an arc of a circle
53. You are given a sample of soil containing coarse grains to determine its water content, you will use
Correct : A. Pycnometer
54. Pick up the incorrect definition from the following:
Correct : D. None of these
55. A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesion-less soil under an intensity of loading of 0.2 N/ram². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is
Correct : B. Between 15 mm and 25 mm
56. The angle between the directions of the failure and the major principal plane, is equal to
Correct : D. 45° + half of the angle of shearing resistance
57. In active state of plastic equilibrium in a non cohesive soil with horizontal ground surface
Correct : C. Major principal stress is vertical
58. Residual soils are formed by
Correct : D. None of the above
59. A soil not fully consolidated under the existing over-burden pressure, is called
Correct : C. Over-consolidated
60. Pick up the correct statement from the following:
Correct : D. All the above
61. If Cv is the coefficient of consolidation,t is the time and d is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by
Correct : D. Tv = Cvt/dt²
62. Select the correct statement.
Correct : D. Unit weight of soil decreases due to submergence in water
63. The bearing capacity of a soil depends upon
Correct : D. All the above
64. Pick up the correct statement from the following:
Correct : D. All the above
65. If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is
Correct : B. Equal to specific gravity of soil
66. If water content of a soil is 40%, G is 2.70 and void ratio is 1.35, the degree of saturation is
Correct : C. 80 %
67. Stoke's law is valid only if the size of particle is
Correct : C. Between 0.2 mm and 0.0002 mm
68. Pick up the correct statement applicable to plate load test
Correct : D. All the above
69. Failure of a slope occurs only when total shear force is
Correct : B. Greater than total shearing strength
70. If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in
Correct : B. Plastic state
71. Pick up the correct statement from the following:
Correct : D. All the above
72. Negative skin friction on piles
Correct : D. All of the above
73. Select the correct statement.
Correct : B. A uniform soil has less strength and stability than a nonuniform soil
74. If a soil undergoes a change in shape and volume by application of external loads over it, but recovers its shape and volume immediately after removal of the load, the property of the soil is said to be
Correct : B. Elasticity of soils
75. The water content in a soil sample when it continues to loose weight without loosing the volume, is called
Correct : A. Shrinkage limit
76. Effective stress is
Correct : C. Important because it is a function of engineering properties of soil
77. The angle of internal friction is maximum for
Correct : B. angular-grained dense sand
78. If the coefficients of volume change and compressibility of a soil sample are 6.75 × 10-2 and 3 × 10-2 respectively, the void ratio of the soil sample, is
Correct : D. 1.30
79. When a cohesionless soil attains quick condition, it looses
Correct : C. Both (a) and (b)
80. Select the correct statement.
Correct : B. The greater the unit weight, the greater is permeability
81. A direct shear test possesses the following disadvantage:
Correct : C. As the test progresses the area under shear, gradually changes
82. A stratum of clay 2 m thick will get consolidated 80% in 10 years. For the 80% consolidation
of 8 m thick stratum of the same clay, the time required is
Correct : D. 160 years
83. When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. This phenomenon is generally known
Correct : D. All the above
84. If drainage is permitted throughout the test, during the application of both normal, and shear stresses so that full consolidation occurs and no excess pore pressure is set up at any stage of the test, is known as
Correct : B. Drained test
85. Degree of consolidation is
Correct : B. Directly proportional to time and inversely proportional to square of drainage path
86. Terzaghi's theory of one dimensional consolidation assumes
Correct : D. All the above
87. The shear resistance of a soil is constituted basically of the following component.
Correct : D. All the above
88. The consolidation time for soils
Correct : D. All the above
89. Coefficient of compressibility is
Correct : B. Different for different types of soils and also different for a soil under different states of consolidation
90. The ratio of the weight of water to the weight of solids in a given mass of soil, is known
Correct : D. Water content
91. In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil, is
Correct : C. 65 %
92. The critical exist gradient of seepage water in soils, increases with
Correct : D. Both (a) and (c)
93. The Mohr's straight theory is based on the following fact:
Correct : D. All the above
94. According to Coulomb's wedge theory, the active earth pressure slides the wedge
Correct : A. Down and outwards on a slip surface
95. Pile foundations are generally preferred to for
Correct : B. Sky scrapper buildings
96. The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing
Correct : B. Cohesion and effective unit weight of soil
97. A soil mass is said to be in plastic equilibrium if
Correct : B. It is on the verge of failure
98. Stoke's law states that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon
Correct : D. Shape, size and weight of grain
99. Pick up the correct statement from the following:
Correct : B. A soil having pH value less than 7 is an acidic soil
100. Contact pressure beneath a rigid footing resting on cohesive soil is