Correct : C. deals with changes in volume of pores in a soil under load
2. The minimum size of grains of silts is about
Correct : A. 0.0002 mm
3. Quich sand is a
Correct : C. condition in which a cohesionless soil loses at its strength because of upward flow of water
4. Submerged soils are
Correct : B. fully
5. The unit bearing capacity of footing in sand
Correct : C. increases with depth of footing
6. The specific gravity of sandy soils is
Correct : D. 2.7
7. The active earth pressure of a soil is defined as the lateral pressure exerted by soil
Correct : C. when the retaining wall tends to move away from the back fill
8. Cohesionless soils are
Correct : A. sands
9. The process of maintaining or improving the performance of a soil as a constructional material, usually by the use of admixtures, is known as
Correct : B. soil stabilisation
10. The permeability of a given soil is
Correct : C. directly proportional to the square of the average grain size
11. A line showing the dry density as a function of water content for soil containing no air voids, is called
Correct : A. saturation line
12. The hydraulic gradient provided at the downstream side of a hydraulic structure such as a dam, is called
Correct : D. any one of these
13. The dry sand specimen is put through a triaxial test. The cell pressure is 50 kPa and the deviator stress at failure is 100 kPa. The angle of internal friction for the sand specimen is
Correct : B. 30?
14. The lateral earth pressure exerted by the soil when the retaining wall moves into the soil, is known as
Correct : C. passive earth pressure
15. Hydrometer analysis is used to determine the density of soil suspension.
Correct : A. Agree
16. The uniformity co-efficient of soil is defined as the ratio of
Correct : D. D60 to D10
17. Which of the following gives the correct decreasing order of the densities of a soil sample?
Correct : C. Saturated, wet, dry, submerged
18. The effective stress on the soil mass
Correct : B. decreases
19. The ultimate net bearing capacity lay depends upon the value of cohesion.
Correct : A. Agree
20. The ratio of the unit weight of soil solids to that of water is called
Correct : C. specific gravity
21. When the water table is under the base of the footing at a depth equal to half of the width of the footing, the bearing capacity of a soil is reduced to
Correct : B. one-half
22. The net ultimate bearing capacity is the maximum net pressure intensity causing shear failure of soil.
Correct : A. True
23. Talus' is a soil transported by glacial water.
Correct : B. Wrong
24. The compression index of the soil
Correct : A. increases with the increase in liquid limit
25. The critical gradient of the seepage of water
Correct : B. increases with the decrease in void ratio
26. The settlement of a footing in sand depends upon the
Correct : D. all of these
27. The bearing capacity of a soil
Correct : A. increases
28. A soil with consistency equal to one is at its
Correct : B. plastic
29. The angle of internal friction
Correct : D. all of the above
30. Which of the following clay mineral gives maximum swelling?
Correct : B. Montmorillonite
31. The uniformity coefficient for a uniformly graded soil is nearly unity.
Correct : A. Agree
32. The degree of saturation for the moist soil is about
Correct : D. 50 to 75%
33. The submerged or buoyant unit weight of soil is equal to the
Correct : B. difference
34. The contact pressure of flexible footing on no-choesive soils is
Correct : A. more in the centre than at the edges
35. The seepage pressure is independent of the coefficient of permeability.
Correct : A. Correct
36. The plastic limit of a soil is defined as the
Correct : D. minimum amount of water content which makes the soil to be rolled into 3 mm diameter threads
37. The decrease in voids ratio per unit increse of presure is called
Correct : B. coefficient of compressibility
38. The maximum size of grains of silts is about
Correct : A. 0.06 mm
39. Which of the following statement is wrong?
Correct : D. none of the above
40. The frictional resistance of clayey soil is
Correct : A. less than
41. The coefficient of compressibility
Correct : B. decreases
42. If the coefficient of passive earth pressure is 1/3, then the coefficient of active earth pressure is
Correct : C. 3?2
43. The lateral earth pressure is
Correct : C. directly proportional to the squre of the depth of soil
44. The net soil pressure is obtained by multiplying the net ultimate bearing capacity of soil to the factor of safety.
Correct : B. Wrong
45. The maximum size of the particles of clay is about
Correct : B. 0.002 mm
46. The angle of internal friction of round grained loose sand is about
Correct : B. 25? to 30?
47. A soil having particles of nearly the same size is known as
Correct : A. uniform soil
48. The dense sands have
Correct : A. greater
49. The unconfined compressive strength of a very hard clay is
Correct : D. Above 400 kN/m2
50. The sensitivity of a normal clay is about
Correct : A. 2 to 4
51. The flow net in the seepage of water through a soil medium is a network of
Correct : C. flow lines and equi-potential lines
52. The unit of coefficient of compressibility is inverse of pressure.
Correct : A. Correct
53. In the design of footings on sand, if the angle of internal friction is equal to 36?, the bearing capacity factors for
Correct : A. general
54. The coefficient of consolidation is used for evaluating
Correct : D. time rate of settlement
55. The shear strength of a soil in the plastic limit is
Correct : A. higher
56. A sand with greater relative density exhibits
Correct : B. larger
57. Which of the following have an influence on the value of permeability?
Correct : D. all of these
58. The angle of shearing resistance for dry loose sand is same as that of angle of internal friction.
Correct : A. Right
59. The ratio of the difference between the void ratio in its loosest state and its natural void ratio to the difference between the voids ratio is the loosest and the densest state, is called
Correct : D. any one of these
60. Stoke's law is applicable to particles upto
Correct : A. 0.0002 mm
61. The degree of consolidation is proportional directly
Correct : C. to time and inversely to the square of drainage path
62. Flow lines and equi-potential lines are
Correct : C. intersecting lines at 90? to each other
63. The effective size of a soil is
Correct : A. D10
64. When the particles of soil are oriented 'edge to edge' or 'edge to face' with respect to one another, the soil is said to have
Correct : D. flocculent structure
65. The maximum permissible exit gradient is the critical gradient divided by a factor of safety.
Correct : A. True
66. The ultimate settlement of a soil
Correct : D. all of the above
67. The effect of cohesion on a soil is to
Correct : C. reduce active earth pressure intensity but to increase passive earth pressure intensity
68. A soil sample is having a specific gravity of 2.60 and a void ratio of 0.78. The water content in percentage required to fully saturate the soil at that void ratio will be
Correct : B. 30
69. The difference between maximum void ratio and minimum void ratio of a sand sample is 0.30. If the relative density of this sample is 66.6% at a void ratio of 0.40, then the void ratio of this sample at its loosest state will be
Correct : B. 0.6
70. If the direction of flow of water is parallel to the planes of stratification, then the permeability is
Correct : D. 2 to 30
71. Chemical weathering of soil is caused due to
Correct : D. all of these
72. Bulk density of a soil is defined as the ratio of
Correct : A. total mass of soil to the total volume of soil
73. The coefficient of consolidation of a soil is affected by
Correct : C. both (a) and (b)
74. When water content in a soil is reduced beyond the shrinkage limit, the soil will be in a
Correct : A. solid state
75. The critical gradient for all soils is normally
Correct : B. 1
76. For a sandy soil, the angle of internal friction is 30?. If the major principal stress is 50 kN/m2 at failure, the corresponding minor principal stress will be
Correct : B. 16.66 kN/m2
77. The clays which exhibit high activity
Correct : C. both (a) and (b)
78. The coefficient of volume compressibility is
Correct : C. directly proportional to the coefficient of compressibility
79. The earth pressure at rest is calculated by using
Correct : D. theory of elasticity
80. For a perfectly dry soil mass, the degree of saturation is zero
Correct : A. Yes
81. A civil engineer is concerned mainly with
Correct : D. 10 to 15 m
82. The effective stress on the soil is due to the
Correct : D. both (a) and (b)
83. The moist soil is
Correct : B. partially
84. The maximum water content of a saturated soil at which a reduction in its moisture does not cause a decrease in volume of the soil, is called
Correct : D. shrinkage limit
85. When the water table is close to the ground surface, the bearing capacity of a soil is reduced to
Correct : D. three-fourth
86. The change in volume of soil per unit of initial volume due to a given unit increase in pressure is called
Correct : C. coefficient of volume compressibility
87. The coefficient of passive earth pressure
Correct : A. increases
88. The neutral stress is
Correct : B. transmitted to the soil base through the pore water
89. If the pores of a soil are completely full of air only, the soil is said to be
Correct : B. dry soil
90. The soil transported by wind is called
Correct : A. aeolian soil
91. The earth pressure at rest is defined as the lateral pressure exerted by soil
Correct : B. when the retaining wall has no movement relative to the back fill
92. The effective stress is also called pore-water pressure.
Correct : B. Disagree
93. The coefficient of active earth pressure for a loose sand having an angle of internal friction of 30?, is
Correct : B. 1?3
94. The rate of expulsion of pore fluid is directly dependent on the
Correct : C. permeability
95. Sand is almost non-compressible.
Correct : A. Correct
96. The vertical deformation of soil mass consists of
Correct : D. all of these
97. When the plastic limit is equal to or greater than the liquid limit, then the plasticity index is
Correct : B. zero
98. When the consistency index is zero, then the soil is at its