MCQOPTIONS
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MCQOPTIONS
This section includes 112 Mcqs, each offering curated multiple-choice questions to sharpen your Geotechnical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The vertical stress on the solid cylindrical test apparatus is applied by ____________ |
| A. | Major principal stress |
| B. | Minor principal stress |
| C. | Intermediate principal stress |
| D. | All of the mentioned |
| Answer» B. Minor principal stress | |
| 52. |
The parameter φ in coulomb’s equation “S = c + σ tan φ”, represents ___________ |
| A. | Shearing resistance and Angle of internal friction |
| B. | Angle of slope |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Angle of slope | |
| 53. |
The equation for the unconsolidated un drainage strength of clay is __________ |
| A. | τ = c + σ tan φ |
| B. | τf = ccu + σ tan φcu |
| C. | τ = c + σ |
| D. | τ = σ tan φ |
| Answer» C. τ = c + σ | |
| 54. |
The commonly used apparatus used for performing shear box test is ___________ |
| A. | Shear-box apparatus |
| B. | Bishop’s pore pressure apparatus |
| C. | Tri axial shear test apparatus |
| D. | None of the mentioned |
| Answer» B. Bishop’s pore pressure apparatus | |
| 55. |
The maximum shear stress τmax, for a soil mass is equal to ___________ |
| A. | (σ1 – σ3 )/2 |
| B. | (σ1 + σ3 )/2 |
| C. | (σ1×σ3 )/2 |
| D. | (σ3 – σ1 )/2 |
| Answer» B. (σ1 + σ3 )/2 | |
| 56. |
Which of the following is a disadvantage of the shear box test? |
| A. | Stress condition of soil is complex |
| B. | The test cannot be used for coarse grained soil |
| C. | No control on the drainage of soil |
| D. | The shear box test is more complex test |
| Answer» B. The test cannot be used for coarse grained soil | |
| 57. |
Which of the following strength test is commonly used in the laboratory? |
| A. | Direct shear test |
| B. | Confined compression test |
| C. | Tri axial shear test |
| D. | Unconfined shear test |
| Answer» D. Unconfined shear test | |
| 58. |
Which of the following stresses does not have any influence on strength of a material? |
| A. | Major principal stress |
| B. | Minor principal stress |
| C. | Intermediate principal stress |
| D. | Shearing stress |
| Answer» D. Shearing stress | |
| 59. |
Negative pore pressure in clay or sand is developed due to __________ |
| A. | Expansion on loading |
| B. | Over loading |
| C. | Loose structure |
| D. | Compaction |
| Answer» B. Over loading | |
| 60. |
When the sol is in the state of stress, it is said to be in _____________ |
| A. | Constant state |
| B. | Plastic equilibrium |
| C. | Stress conditioned state |
| D. | Equilibrium condition |
| Answer» C. Stress conditioned state | |
| 61. |
The deviator stress developed in the proving ring, through the applied pressure is equal to are____________ |
| A. | σ1 + σ3 |
| B. | σ1 – σ3 |
| C. | σ2 – σ3 |
| D. | σ2 + σ1 |
| Answer» C. σ2 – σ3 | |
| 62. |
The critical shear stress causing failure of material depends upon ____________ |
| A. | Properties of the material and normal stress on the plane |
| B. | Intermediate principal stress |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Intermediate principal stress | |
| 63. |
The drained test is also known as ___________ |
| A. | Direct shear test |
| B. | Slow test |
| C. | Vane shear test |
| D. | Quick test |
| Answer» C. Vane shear test | |
| 64. |
Theory of failure, was first proposed by ____________ |
| A. | Coulomb |
| B. | Mohr |
| C. | Casagrande |
| D. | Darcy |
| Answer» B. Mohr | |
| 65. |
The unconfined compression test is derived from _____________ |
| A. | Direct shear test |
| B. | Vane shear test |
| C. | Tri axial compression tests |
| D. | Drained test |
| Answer» D. Drained test | |
| 66. |
The value of pore pressure parameter, at failure for saturated clay is __________ |
| A. | 1.2 to 2.5 |
| B. | 2 to 3 |
| C. | 0.3 to 0.7 |
| D. | 0.7 to 1.3 |
| Answer» C. 0.3 to 0.7 | |
| 67. |
When the Mohr circle is drawn in confined compression test, its radius will be equal to ____________ |
| A. | Cu |
| B. | qu |
| C. | Ru |
| D. | None of the mentioned |
| Answer» B. qu | |
| 68. |
Bishop’s apparatus does not contain which one of the following equipment? |
| A. | Porous disc |
| B. | Top cap |
| C. | Rollers |
| D. | All of the mentioned |
| Answer» E. | |
| 69. |
The curve obtained by plotting the normal and shear stress is called as ___________ |
| A. | Mohr’s envelope |
| B. | Coulomb envelope |
| C. | Strength envelope |
| D. | Stress envelope |
| Answer» D. Stress envelope | |
| 70. |
Stress component on planes of a loaded soil mass depends upon ____________ |
| A. | Stress acting on plane |
| B. | Direction of plane |
| C. | Shearing resistance |
| D. | All of the mentioned |
| Answer» C. Shearing resistance | |
| 71. |
Which of the following is coulomb’s strength equation? |
| A. | S = c + tan φ |
| B. | C = s + c tan φ |
| C. | S = c + σ tan φ |
| D. | S = tan φ |
| Answer» D. S = tan φ | |
| 72. |
Which of the following is an advantage of using tri axial test? |
| A. | Accurate result is not possible |
| B. | The plane of shear failure is predetermined |
| C. | Stress conditions are complex |
| D. | Precise measurement |
| Answer» E. | |
| 73. |
A major difference between the direct shear test and tri axial shear test is _____________ |
| A. | Control on the drainage level |
| B. | Stress condition |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Stress condition | |
| 74. |
The Tri axial compression test was introduced by __________ |
| A. | A. casagrande and Karl Terzaghi |
| B. | Mohr |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Mohr | |
| 75. |
In unconfined compression test the value of σ2 and σ3 is equal to ____________ |
| A. | 1 |
| B. | 0 |
| C. | 0.5 |
| D. | ½ |
| Answer» C. 0.5 | |
| 76. |
According to Coulomb, the relationship between shear strength and normal stress could be represented by _________ |
| A. | Linear curve |
| B. | Parabolic curve |
| C. | Straight line |
| D. | None of the mentioned |
| Answer» C. Straight line | |
| 77. |
The unconfined compression test was first designed by _________ |
| A. | A. casagrande and Goyal |
| B. | Singh |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Singh | |
| 78. |
Which of the following outlet is provided at the base of the tri axial test apparatus? |
| A. | Cell fluid inlet |
| B. | Pore water outlet |
| C. | Drainage outlet |
| D. | All of the mentioned |
| Answer» E. | |
| 79. |
Factor affecting pore pressure parameters is ___________ |
| A. | Type of shear |
| B. | Temperature |
| C. | Nature of the fluid |
| D. | All of the mentioned |
| Answer» E. | |
| 80. |
In plastic failure, load corresponding to __________ strain is arbitrarily taken as the failure load. |
| A. | 10 % |
| B. | 5 % |
| C. | 20 % |
| D. | 50 % |
| Answer» D. 50 % | |
| 81. |
The normal stresses acting on planes of the soil are known as _____________ |
| A. | Major principal stresses |
| B. | Principal stresses |
| C. | Minor principal stresses |
| D. | Principal planes |
| Answer» B. Principal stresses | |
| 82. |
Shearing resistance can be determined in the laboratory by _________ methods. |
| A. | 2 |
| B. | 6 |
| C. | 4 |
| D. | 8 |
| Answer» D. 8 | |
| 83. |
The direct shear test can also be called as ___________ |
| A. | Simple shear test |
| B. | Stress test |
| C. | Strain controlled shear box test |
| D. | All of the mentioned |
| Answer» C. Strain controlled shear box test | |
| 84. |
Which of the following shear test is developed based on drainage conditions? |
| A. | Quick test and Consolidated un drained test |
| B. | Direct shear test |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Direct shear test | |
| 85. |
To conduct un-drained test, which of the following is used? |
| A. | Slope grids |
| B. | Perforated grids |
| C. | Plain grids |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 86. |
The Mohr-Coulomb theory can be expressed algebraically by which of the following equation? |
| A. | S = c + σ tan φ |
| B. | τf = s = F(σ) |
| C. | s = F(σ) |
| D. | τf = F(σ) |
| Answer» C. s = F(σ) | |
| 87. |
What will be the shearing resistance of a sample of clay in an unconfined compression test, falls under a load of 150 N? Take change of cross-section Af=2181.7 mm². |
| A. | 68.75 kN/m² |
| B. | 34.38 kN/m² |
| C. | 11.35 kN/m² |
| D. | 0.6875 kN/m² |
| Answer» C. 11.35 kN/m² | |
| 88. |
Major principal stress in a soil is represented by the symbol ________________ |
| A. | σ1 |
| B. | σ2 |
| C. | σ3 |
| D. | σ4 |
| Answer» B. σ2 | |
| 89. |
The deviator stress σd is given by __________ |
| A. | σd = σ1 + σ |
| B. | σd = σ3 – σ1 |
| C. | σd=additional axial load/A2 |
| D. | σd = σ1 – σ3 |
| Answer» D. σd = σ1 – σ3 | |
| 90. |
The change in the pore pressure during an un-drained shear can be explained by ___________ |
| A. | Lateral pressure |
| B. | Effective stress |
| C. | Pore pressure parameter |
| D. | Mohr’s circle |
| Answer» D. Mohr’s circle | |
| 91. |
The circle obtained from two dimensional stress system is known as ________ |
| A. | Principal stress circle |
| B. | Mohr circle |
| C. | Shearing stress circle |
| D. | None of the mentioned |
| Answer» C. Shearing stress circle | |
| 92. |
Which of the following parameter is used to represent unconfined compressive strength at failure? |
| A. | τf |
| B. | cu |
| C. | qu |
| D. | Au |
| Answer» D. Au | |
| 93. |
Stress condition in the Unconfined compression test represents ____________ |
| A. | Drained test |
| B. | Un-drained test |
| C. | Quick test |
| D. | All of the mentioned |
| Answer» C. Quick test | |
| 94. |
The un-drained test is carried out on sample of clay, silt, and peat to determine _____________ |
| A. | Shear Strength of natural ground and Sensitivity |
| B. | Pore pressure |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Pore pressure | |
| 95. |
In an un-drained test on saturated clays, both σ1’ and σ3’ is independent of ____________ |
| A. | Pore pressure |
| B. | Shear strength |
| C. | Cell pressure |
| D. | Effective pressure |
| Answer» D. Effective pressure | |
| 96. |
The consolidated-un drained test can be performed in ___________ methods. |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |
| 97. |
The shear strength in cohesion less soil is due to ___________ |
| A. | Internal friction |
| B. | Cohesion |
| C. | Inter granular friction |
| D. | Inter particle force |
| Answer» D. Inter particle force | |
| 98. |
The shearing resistance of a soil is constituted by ___________ |
| A. | Structural resistance and Frictional resistance |
| B. | Shearing strength |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Shearing strength | |
| 99. |
The failure condition for a soil can be expressed in terms of limiting shear stress, called __________ |
| A. | Principal stresses and Shear strength |
| B. | Shearing resistances |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Shearing resistances | |
| 100. |
The planes that exist in soil mass is ______________ |
| A. | Principal plane |
| B. | Principal stress |
| C. | Stress plane |
| D. | None of the mentioned |
| Answer» B. Principal stress | |