Geotechnical Engineering MCQ
1. What is the expression for coefficient of uniformity?
D50/D10
D70/D10
D60/D20
D60/D10
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2. What is the maximum value of the coefficient of earth pressure?
1.0
When the soil is compressed laterally, inducing failure in the soil.
0.5
2.0
Answer
Correct Answer:
When the soil is compressed laterally, inducing failure in the soil.
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3. What is the value of coefficient of earth pressure when the soil is permitted neither to expand nor compress laterally?
Value of coefficient of earth pressure when the soil is permitted to compress but not to expand laterally
At Rest
Value of coefficient of earth pressure when the soil is permitted to expand but not to compress laterally
Coefficient of earth pressure, at Rest
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4. The ratio of lateral effective pressure to vertical effective pressure is known as ________.
The coefficient of earth pressure
The soil mass
The vertical effective pressure
The lateral effective pressure
Answer
Correct Answer:
The coefficient of earth pressure
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5. What is the ratio between the lateral effective pressure and vertical effective pressure at any point in the soil mass called?
Coefficient of earth pressure
Reference point
Richter scale
Coefficient of friction
Answer
Correct Answer:
Coefficient of earth pressure
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6. What is the coefficient of compressibility?
The reciprocal of the slope of the tangent line to the curve relating pressure and volume
The secant slope, for a given pressure increment of the effective pressure
The slope of the line relating pressure and volume
The slope of the line relating pressure and temperature
Answer
Correct Answer:
The secant slope, for a given pressure increment of the effective pressure
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7. What is the average dimension of a cobble?
Between 80 and 300 mm
Between 10 and 20 mm
Between 30 and 40 mm
Between 50 and 60 mm
Answer
Correct Answer:
Between 80 and 300 mm
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8. What is the clay size?
That portion of the soil equal to 0.002 mm.
That portion of the soil finer than 0.001 mm.
That portion of the soil finer than 0.002 mm.
That portion of the soil coarser than 0.002 mm.
Answer
Correct Answer:
That portion of the soil finer than 0.002 mm.
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9. What is clay?
A naturally occurring Material
An aggregate of microscopic and sub microscopic particles derived from the chemical decomposition and disintegration of rock constituents.
Soil composed mainly of silt
A type of sedimentary rock
Answer
Correct Answer:
An aggregate of microscopic and sub microscopic particles derived from the chemical decomposition and disintegration of rock constituents.
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10. What is water subject to the influence of capillary action called?
Capillary water
Well water
Soil water
Groundwater
Answer
Correct Answer:
Capillary water
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11. What is capillary water?
The process of evaporation of water
The process of infiltration of water
Water subject to the influence of capillary action.
The process of condensation of water
Answer
Correct Answer:
Water subject to the influence of capillary action.
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12. What is the definition of bulking?
It is the increase in volume of a material due to handling.
The act of increasing muscle mass
The process of becoming fatter
A measure of the weight of a substance in a particular container
Answer
Correct Answer:
It is the increase in volume of a material due to handling.
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13. What is bulking?
The increase in volume of a material due to handling.
The process of reducing the volume of a material.
The increase in volume of a material due to pressure.
The prevention of increased volume in a material.
Answer
Correct Answer:
The increase in volume of a material due to handling.
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14. What is the average dimension of a boulder?
300 mm
400 mm
100 mm
200 mm
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15. A more or less rounded block or fragment of rock and of average dimension 300 mm or greater is known as what?
A Boulder
A Rock
A Stone
A Pebble
Answer
Correct Answer:
A Boulder
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16. What is the predominant soil type in Black cotton soils?
Humic
Fluvent
Montmorillonitic
Rendzina
Answer
Correct Answer:
Montmorillonitic
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17. What is the maximum intensity of loading that the soil will safely carry with a factor of safety against shear failure?
Bearing Capacity
Shear failure
Intensity
Maximum safe
Answer
Correct Answer:
Bearing Capacity
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18. What is the bearing capacity?
The maximum safe intensity of loading that the soil will carry with a factor of safety against compression failure.
The maximum safe intensity of loading that the soil will carry with a factor of safety against tension failure.
The maximum safe intensity of loading that the soil will carry with a factor of safety against shear failure.
Answer
Correct Answer:
The maximum safe intensity of loading that the soil will carry with a factor of safety against shear failure.
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19. What does the bearing capacity factor represent?
The amount of organic matter in a soil
The amount of air a soil has
The soil's ability to support a load without failing
The amount of water a soil can hold
Answer
Correct Answer:
The soil's ability to support a load without failing
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20. What is the angle of repose?
Angle between the horizontal and the maximum slope that a soil assumes through natural processes.
Angle between the vertical and the maximum slope that a soil assumes through natural processes.
The angle of repose is the angle at which a body can slide down an inclined plane.
The angle of repose is the angle at which a body can rest on an inclined plane without sliding down.
Answer
Correct Answer:
Angle between the horizontal and the maximum slope that a soil assumes through natural processes.
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21. The allowable pile bearing load is the load which may be safely applied to a pile after taking into account its _______.
Ultimate bearing resistance
Density
Melting point
Yield strength
Answer
Correct Answer:
Ultimate bearing resistance
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22. Nett is what minus the surcharge?
The average repair cost of a car
The allowable bearing pressure (gross)
The number of students in a classroom
The width of a standard two-lane highway in the United States
Answer
Correct Answer:
The allowable bearing pressure (gross)
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23. What is the difference between allowable bearing pressure and nett?
Nett is the allowable bearing pressure (gross) plus the surcharge.
Nett is the allowable bearing pressure (gross) minus the surcharge.
Allowable bearing pressure is the nett minus the surcharge.
Allowable bearing pressure is the nett plus the surcharge.
Answer
Correct Answer:
Nett is the allowable bearing pressure (gross) minus the surcharge.
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24. The maximum allowable gross loading intensity on the ground is known as ___________.
Settlement
Allowable bearing pressure (Gross)
Maximum safe bearing capacity (Gross)
Particular structure
Answer
Correct Answer:
Allowable bearing pressure (Gross)
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25. What is the air void ratio?
The ratio of the volume of water to the volume of solids in a soil mass
The ratio of the volume of air space to the volume of water in a soil mass
The ratio of the volume of the air space to the volume of solids, in a soil mass
The ratio of the volume of solids to the volume of air space, in a soil mass
Answer
Correct Answer:
The ratio of the volume of the air space to the volume of solids, in a soil mass
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26. What are physio-chemical forces?
Forces that are chemical in nature
Forces that are physical and chemical in nature
Forces that are neither physical nor chemical in nature
Forces that are physical in nature
Answer
Correct Answer:
Forces that are physical and chemical in nature
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27. What are the physical properties of adsorbed water?
Same as chemically combined water
Same as absorbed water
Substantially different from absorbed or free water
Same as free water
Answer
Correct Answer:
Substantially different from absorbed or free water
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28. Adhesion refers to ____.
Adhesion between two solids
Adhesion of a gas to a solid
Adhesion of a liquid to a solid
Shearing resistance between soil and another material under zero externally applied pressure
Answer
Correct Answer:
Shearing resistance between soil and another material under zero externally applied pressure
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29. What is adhesion?
Shearing resistance between soil and another material under zero externally applied pressure.
The force that attracts molecules to each other
The ability of a substance to flow freely
Soil erosion caused by water
Answer
Correct Answer:
Shearing resistance between soil and another material under zero externally applied pressure.
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30. What is the ratio of the plasticity index to the clay fraction?
Plasticity index - clay fraction
Clay fraction/plasticity index
Plasticity index/clay fraction
Plasticity index + clay fraction
Answer
Correct Answer:
Plasticity index/clay fraction
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31. What is the meaning of "Absorbed water"?
The amount of water that a plant can absorb through its roots
Water held mechanically (by surface tension) in a soil mass
Water that has been taken in by a plant's leaves
Water vapor in the atmosphere
Answer
Correct Answer:
Water held mechanically (by surface tension) in a soil mass
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32. What is the stress at which yielding takes place in soils called?
Yield stress
Soil stress
Yielding
Yielding point
Answer
Correct Answer:
Yield stress
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33. The yield stress is the stress at which ____.
The swelling-recompression line joins the normal compression line.
The stress at which yielding takes place in soils.
Soil yield is a measure of the strength of the soil.
Yielding takes place in all soils.
Answer
Correct Answer:
The stress at which yielding takes place in soils.
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34. What is the yield point?
The point at which the soil loading behavior changes from inelastic to elastic.
The point at which the soil loading behavior changes from plastic to inelastic.
The point at which the soil loading behavior changes from inelastic to plastic.
The point at which the soil loading behavior changes from elastic to inelastic.
Answer
Correct Answer:
The point at which the soil loading behavior changes from elastic to inelastic.
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35. Void space of a body of soil refers to?
The space below the soil
The space in between the particles of soil
The space above the soil
The space around the soil
Answer
Correct Answer:
The space in between the particles of soil
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36. What is the weight of water contained in the void space of a body of soil?
Weight of water
Weight of air
Volume of water
Weight of soil
Answer
Correct Answer:
Weight of water
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37. What is the dry weight of soil grains in a mass of soil called?
Volume of soil grains
Soil grain
Weight of soil grains
Density of soil grains
Answer
Correct Answer:
Weight of soil grains
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38. What is the water table?
The average level of water in a body of soil
The highest level of water in a body of soil
The lowest level of water in a body of soil
The level in a body of soil at which the hydrostatic water pressure is zero
Answer
Correct Answer:
The level in a body of soil at which the hydrostatic water pressure is zero
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39. The water table is the level in a body of soil at which the hydrostatic water pressure is...?
Maximum
Positive
Zero
Minimum
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40. What is the void ratio?
The Mass per unit Volume of voids
The ratio of the volume of solids to the volume of voids
The Density of voids
The ratio of the volume of voids to the volume of solids
Answer
Correct Answer:
The ratio of the volume of voids to the volume of solids
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41. What is a Visual Classification field test used for?
Estimating soil characteristics
Classifying objects
Determining time
Measuring distance
Answer
Correct Answer:
Estimating soil characteristics
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42. What is Vibrodensification?
The process of making soil less dense and compact
A type of soil
The process of making soil more dense and compact
The compaction of cohesionless soils by imparting wave energy to the soil mass
Answer
Correct Answer:
The compaction of cohesionless soils by imparting wave energy to the soil mass
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43. Vertical stress is caused by:
The soil's own weight
The weight of a building on the soil
Water pressure
Horizontal stress
Answer
Correct Answer:
The soil's own weight
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44. What are Varved clays?
Clays that are layered with just fine varieties
Clays that are layered with fine and coarse varieties.
Clays that are not layered
Clays that are layered with just coarse varieties
Answer
Correct Answer:
Clays that are layered with fine and coarse varieties.
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45. What is the vane shear test used for?
To assess the amount of water in the soil
To measure the shear strength of a soil that is low-strength, homogeneous and cohesive.
To classification of a soil
To determine the amount of some substance in the soil
Answer
Correct Answer:
To measure the shear strength of a soil that is low-strength, homogeneous and cohesive.
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46. What is unit weight?
The ratio of the total volume of soil to the total weight of a unit of soil.
The weight of a single unit of soil.
The ratio of the total weight of soil to the total volume of a unit of soil.
The total weight of all the soil units.
Answer
Correct Answer:
The ratio of the total weight of soil to the total volume of a unit of soil.
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47. What is the Unified Soil Classification System also known as?
USC
USN
USP
USCS
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48. What does USCS stand for?
United States Classification Society
Universal Soil Conservation Society
United States Constitution Society
Unified Soil Classification System
Answer
Correct Answer:
Unified Soil Classification System
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49. The shear strength of a saturated soil is independent of applied stresses if
There is no drainage of pore water
The void ratio remains constant
The applied stress is zero
The Mohr-Coulomb envelope is horizontal
Answer
Correct Answer:
The void ratio remains constant
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50. What is the shear strength of a saturated soil called?
Shear strength
Drained shear strength
Mohr-Coulomb envelope
Undrained shear strength
Answer
Correct Answer:
Undrained shear strength
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51. What is the unconfined compressive strength test used for?
To determine the amount of air in a sample
To determine the amount of water in a sample
To calculate the undrained shear strength of plastic soils, usually clay.
To calculate the density of a sample
Answer
Correct Answer:
To calculate the undrained shear strength of plastic soils, usually clay.
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52. What is the undrained shear strength calculated to be from an unconfined compressive strength test?
3/4 of the unconfined compressive strength
The unconfined compressive strength
1/4 of the unconfined compressive strength
1/2 of the unconfined compressive strength
Answer
Correct Answer:
1/2 of the unconfined compressive strength
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53. At what stress would shear failure occur in the soil below a foundation?
The minimum bearing capacity
The Ultimate Bearing Capacity
The safe bearing capacity
The allowable bearing capacity
Answer
Correct Answer:
The Ultimate Bearing Capacity
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54. What does ultimate bearing capacity mean?
The bearing stress which would cause compression failure in the soil below a foundation
The bearing stress which would cause shear failure in the soil below a foundation
The bearing stress which would cause tension failure in the soil below a foundation
The bearing stress which would cause extension failure in the soil below a foundation
Answer
Correct Answer:
The bearing stress which would cause shear failure in the soil below a foundation
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55. What is the name of the test used to determine a soil's cohesion?
Uniaxial stress test
Consolidated-drained (CD) test
Plastometer
Calcium chloride test
Answer
Correct Answer:
Consolidated-drained (CD) test
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56. What is triaxial shear strain?
A stress parameter used in the interpretation of axial strain test results.
A stress parameter used in the interpretation of triaxial strain test results.
A strain parameter used in the interpretation of axial stress test results.
A strain parameter used in the interpretation of triaxial stress test results.
Answer
Correct Answer:
A strain parameter used in the interpretation of triaxial stress test results.
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57. How is transport soil created?
Soils that have formed, then moved to another place via wind, water, glacier, etc...
Soils that have been moved by humans
Soils that have been moved by animals
Soils that have not moved
Answer
Correct Answer:
Soils that have formed, then moved to another place via wind, water, glacier, etc...
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58. What is the process of soil that has been moved to another location called?
Transport
Weathering
Deposition
Erosion
Answer
Correct Answer:
Transport
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59. Total stress is equal to _____.
Effective stress - pore water pressure
Effective stress + pore water pressure
Pore water pressure - effective stress
Pore water pressure + total stress
Answer
Correct Answer:
Effective stress + pore water pressure
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60. What is the Total Stress equation?
Total stress = effective stress + pore water pressure
Total stress = pore water pressure - effective stress
Total stress = 2 effective stress
Total stress = pore water pressure + young's modulus
Answer
Correct Answer:
Total stress = effective stress + pore water pressure
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61. Total head measures ____________.
The amount of water
The direction of the water
The speed of the water
The height of the free water surface above a given datum.
Answer
Correct Answer:
The height of the free water surface above a given datum.
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62. What is the height of the free water surface above a given datum called?
Headphones
Headmaster
Total head
Headless
Answer
Correct Answer:
Total head
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63. What is the level of vibration magnitude that a structure is designed?
Velocity
Tolerable vibration
Unnoticeable vibration
Vibration danger
Answer
Correct Answer:
Tolerable vibration
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64. Tension piles are designed to resist which type of forces?
Lateral forces
Downward forces
Upward forces
Horizontal forces
Answer
Correct Answer:
Upward forces
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65. What is the horizontal effective stress at the depth of a tension crack?
Ten
Negative
Zero
Positive
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66. Swelling is caused by which of the following?
Presence of organic matter
Increase in soil volume
Decrease in soil salinity
High clay content
Answer
Correct Answer:
Increase in soil volume
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67. What is Swell?
Soil compactness
Volumetric expansion of particular soils due to changes in water content.
Soil erosion
Decrease in soil volume
Answer
Correct Answer:
Volumetric expansion of particular soils due to changes in water content.
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68. What is a suspension?
A thin mixture of soil and water, whereas the soil particles are floating within the water.
A mixture of soil and water, in which the soil particles settle at the bottom of the container.
A mixture of soil and water, in which the soil particles are evenly distributed throughout the water.
A mixture of soil and water, in which the soil particles float on top of the water.
Answer
Correct Answer:
A thin mixture of soil and water, whereas the soil particles are floating within the water.
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69. Which of the following is true about suspension?
Soil particles are sinking in the water.
All of the soil is suspended in the water.
There is no water in suspension.
Soil particles are floating within the water.
Answer
Correct Answer:
Soil particles are floating within the water.
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70. What does a surcharge do?
Increases the soil's exposure to the elements
Applies an additional force to the upper surface of a restrained soil
Applies an additional force to the lower surface of a restrained soil
Removes the need for a restraining force on a soil
Answer
Correct Answer:
Applies an additional force to the upper surface of a restrained soil
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71. What is the submerged density?
Total density
Soil density - Density of water
Density of water
Soil density
Answer
Correct Answer:
Soil density - Density of water
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72. What is a strip footing?
A large, heavy stone used to support a structure.
A supporting wall across the opening of a cave.
A horizontally long footing supporting a wall.
A framework of iron or steel supporting a structure.
Answer
Correct Answer:
A horizontally long footing supporting a wall.
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73. What is stress history?
The study of how people cope with stress.
The past history of loading and unloading of a soil mass.
A person's family history of stress.
Answer
Correct Answer:
The past history of loading and unloading of a soil mass.
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74. What is the past history of loading and unloading of a soil mass called?
Soil history
Unloading history
Stress history
Loading history
Answer
Correct Answer:
Stress history
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75. What is the unit of measurement for stress?
Force per unit area
Force per unit length
Area
Length
Answer
Correct Answer:
Force per unit area
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76. What does susceptibility to distortion or volume change under an applied load mean?
Mass
Hardness
Density
Stiffness
Answer
Correct Answer:
Stiffness
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77. What is the pore water pressure at equilibrium called?
Steady state pore pressure
Hydrostatic pore pressure
Effective pore pressure
Saturated pore pressure
Answer
Correct Answer:
Steady state pore pressure
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78. The N-value is derived from which field test?
Hydraulic Conductivity Test
Standard Penetration Test
Atterberg Limits Test
Permeability Test
Answer
Correct Answer:
Standard Penetration Test
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79. What is a square footing?
A footing that is shaped as a circle.
A footing that is shaped as a rectangle.
A shallow footing that is shaped as a square.
A deep footing that is shaped as a square.
Answer
Correct Answer:
A shallow footing that is shaped as a square.
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80. What is the main purpose of a spread footing?
To provide drainage for a structure
To support a structural load from multiple columns
To stabilize a structure during an earthquake
To support a structural load from a single column
Answer
Correct Answer:
To support a structural load from a single column
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81. What is the name for a footing that supports a structural load from a single column?
Bearing capacity
Foundation
Spread footing
Isolated footing
Answer
Correct Answer:
Spread footing
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82. What is the ratio of the density of a body or a substance to the mass of an equal volume of water?
Volume
Specific gravity
Mass
Density
Answer
Correct Answer:
Specific gravity
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83. What is soil nailing?
A process to make soil more alkaline
A method of erosion control
A slope stabilization method that involves installing and usually grouting closely spaced rebar in the soil or rock face.
A process of adding nails to soil to make it better for plants
Answer
Correct Answer:
A slope stabilization method that involves installing and usually grouting closely spaced rebar in the soil or rock face.
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84. What is the importance of soil classification?
Soil classification helps determine soil behavior.
Soil classification is only important for determining the texture of the soil.
Soil classification is not important.
Soil classification is only important for determining the color of the soil.
Answer
Correct Answer:
Soil classification helps determine soil behavior.
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85. What is soil classification?
Standardized classification schemes that delineates soil characteristics that are important in determining soil behavior.
The physical and chemical composition of a particular site
Soil erosion
The assessment of land quality
Answer
Correct Answer:
Standardized classification schemes that delineates soil characteristics that are important in determining soil behavior.
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86. What is the primary cause of sliding failure?
Soil erosion
Excessive lateral earth pressures
Vegetation growth
Poorly compacted soil
Answer
Correct Answer:
Excessive lateral earth pressures
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87. Skin friction stress is the shear stress on the shaft of what?
A pile, caisson or cone penetrometer.
A train
A boat
A aircraft
Answer
Correct Answer:
A pile, caisson or cone penetrometer.
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88. What is skin friction stress?
The force required to move a fluid along a pipe
The shear stress on the shaft of a pile, caisson or cone penetrometer.
The force required to stop a moving object
The amount of force per unit area that supports the weight of a liquid
Answer
Correct Answer:
The shear stress on the shaft of a pile, caisson or cone penetrometer.
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89. What is the skin-friction capacity?
Skin resistance or side resistance.
The sum of the bearing capacities for all members of a deep foundation system.
The bearing capacity for the shaft of one member of a deep foundation system.
The bearing capacity for the shaft of all members of a deep foundation system.
Answer
Correct Answer:
The bearing capacity for the shaft of one member of a deep foundation system.
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90. What is the water content corresponding to the transition between a brittle solid and a semi-solid called?
Melting point
Shrinkage limit
Transition temperature
Boiling point
Answer
Correct Answer:
Shrinkage limit
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91. What is the shrinkage index?
The difference between the liquid and shrinkage limits.
The average of the plastic and shrinkage limits.
The sum of the plastic and shrinkage limits.
The difference between the plastic and shrinkage limits.
Answer
Correct Answer:
The difference between the plastic and shrinkage limits.
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92. What is the name of the steel panels that are driven into the ground to provide lateral support?
Railroad tie
Sheet pile
Steel beam
Concrete block
Answer
Correct Answer:
Sheet pile
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93. What is shear stress?
The force per unit area acting tangentially to a given plane or surface.
The force per unit area acting opposite to a given plane or surface.
The force per unit area acting in the same direction of a given plane or surface.
The force per unit area acting normal to a given plane or surface.
Answer
Correct Answer:
The force per unit area acting tangentially to a given plane or surface.
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94. Shear stress is the force per unit area acting __________ to a given plane or surface.
Longitudinally
Perpendicularly
Inversely
Tangentially
Answer
Correct Answer:
Tangentially
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95. What is the shear strength of clay?
Cohesion
Effective stress
Critical state line
Atterberg limits
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96. What is the angular distortion or change in shape of a mass of soil called?
Flexural strain
Shear resistance
Volumetric strain
Shear strain.
Answer
Correct Answer:
Shear strain.
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97. What is shear strain?
The force that deforms a material
The change in shape or size of an object as a result of tensile or compressive forces.
A measure of the change in shape of a material
The angular distortion or change in shape of a mass of soil.
Answer
Correct Answer:
The angular distortion or change in shape of a mass of soil.
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98. What does the shear modulus measure?
The amount of shear stress required to cause a given amount of deformation
The amount of deformation that results from the application of a given amount of shear stress
The amount of deformation that results from the application of a given amount of normal stress
The ratio of the change in shear stress to the resulting change in shear strain.
Answer
Correct Answer:
The ratio of the change in shear stress to the resulting change in shear strain.
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99. What is the main purpose of shape factors?
To calculate the bearing capacity of a soil
To determine the allowable bearing capacity of a soil
To estimate the settlements of a foundation
To adjust for footing geometry
Answer
Correct Answer:
To adjust for footing geometry
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100. What are shape factors?
Factors used in a general bearing capacity equation which provides an adjustment relating to the footing geometry.
The width of a triangle.
The length of a rectangle
The diameter of a circle
Answer
Correct Answer:
Factors used in a general bearing capacity equation which provides an adjustment relating to the footing geometry.
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101. What is the definition of a shallow foundation?
A foundation system that has a deep founding depth relative to the foundation width.
A foundation system that has a shallow founding depth relative to the foundation width.
A foundation system that has an average founding depth relative to the foundation width.
A foundation system that has a wide founding depth relative to the foundation width.
Answer
Correct Answer:
A foundation system that has a shallow founding depth relative to the foundation width.
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102. A shallow foundation has a _____ relative to the foundation width.
Deep founding depth
Foundation width
Shallow founding depth
Shallow footing depth
Answer
Correct Answer:
Shallow founding depth
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103. What is the downward movement of soil called?
Relocation
Depreciation
Soil erosion
Settlement
Answer
Correct Answer:
Settlement
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104. What is the definition of settlement?
The gradual disintegration and decomposition of rock
The downward movement of soil, or the downward movement of a foundation.
The process of establish a permanent or semi-permanent human habitation in an area.
The activity of extracting coal and other minerals from under the earth
Answer
Correct Answer:
The downward movement of soil, or the downward movement of a foundation.
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Transport Engineering MCQs | Topic-wise
