Geotechnical Engineering MCQ

1. What does Consolidated-Undrained test assess?

Answer

Correct Answer: The strength of soil under applied normal loads without drainage

Note: This Question is unanswered, help us to find answer for this one

2. What is compressibility?

Answer

Correct Answer: Property of a soil pertaining to its susceptibility to decrease in volume, when subjected to load

Note: This Question is unanswered, help us to find answer for this one

3. What is the compression of a soil layer per unit of original thickness due to a given unit increase in pressure equal to?

Answer

Correct Answer: The coefficient of compressibility divided by one plus the original void ratio

Note: This Question is unanswered, help us to find answer for this one

4. What is the coefficient of volume compressibility?

Answer

Correct Answer: The compression of a soil layer per unit of original thickness due to a given unit increase in pressure.

Note: This Question is unanswered, help us to find answer for this one

5. What is the coefficient of uniformity?

Answer

Correct Answer: D60/D10

Note: This Question is unanswered, help us to find answer for this one

6. What is the value of D60/D10 known as?

Answer

Correct Answer: Coefficient of uniformity

Note: This Question is unanswered, help us to find answer for this one

7. What is deviator stress?

Answer

Correct Answer: The difference between the axial and radial stresses of a triaxial test sample.

Note: This Question is unanswered, help us to find answer for this one

8. What is the density of water at sea level?

Answer

Correct Answer: 64.0 lbm/ft³

Note: This Question is unanswered, help us to find answer for this one

9. What is the average density of the mineral or rock that soil particles are composed of?

Answer

Correct Answer: Density of soil grains

Note: This Question is unanswered, help us to find answer for this one

10. What is the density index?

Answer

Correct Answer: The density of a granular soil relative to the minimum and maximum densities achieved for that particular soil.

Note: This Question is unanswered, help us to find answer for this one

11. What is density?

Answer

Correct Answer: The ratio of the total mass to the total volume of a unit of soil.

Note: This Question is unanswered, help us to find answer for this one

12. What is the ratio of the total mass to the total volume of a unit of soil?

Answer

Correct Answer: Density

Note: This Question is unanswered, help us to find answer for this one

13. The degree of saturation of a given mass of soil is the _____.

Answer

Correct Answer: Proportion of the volume of water to the total volume of voids

Note: This Question is unanswered, help us to find answer for this one

14. What is the degree of saturation?

Answer

Correct Answer: The proportion of the volume of water to the total volume of voids of a given mass of soil.

Note: This Question is unanswered, help us to find answer for this one

15. After a given elapsed time, what is the proportion of consolidation that has occurred?

Answer

Correct Answer: Degree of consolidation

Note: This Question is unanswered, help us to find answer for this one

16. What is the degree of consolidation?

Answer

Correct Answer: Proportion of consolidation that has occurred after a given elapsed time.

Note: This Question is unanswered, help us to find answer for this one

17. What is the velocity of flow in Darcy's law?

Answer

Correct Answer: Hydraulic conductivity X hydraulic gradient.

Note: This Question is unanswered, help us to find answer for this one

18. What is the cyclic stress ratio?

Answer

Correct Answer: A numerical rating of the potential for liquefaction in sands.

Note: This Question is unanswered, help us to find answer for this one

19. What is the critical hydraulic gradient?

Answer

Correct Answer: The hydraulic gradient at which effective stresses becomes zero.

Note: This Question is unanswered, help us to find answer for this one

20. What is critical hydraulic gradient?

Answer

Correct Answer: The hydraulic gradient at which effective stresses become zero.

Note: This Question is unanswered, help us to find answer for this one

21. What is the critical height of a slope?

Answer

Correct Answer: The height of a slope that corresponds to a factor of safety of 1.0 relative to slope failure.

Note: This Question is unanswered, help us to find answer for this one

22. What is the critical circle?

Answer

Correct Answer: The slip circle that corresponds to the lowest factor of safety.

Note: This Question is unanswered, help us to find answer for this one

23. What is Creep?

Answer

Correct Answer: Time dependent deformations which occurs in soil at constant effective stress without changes in volume and pore water pressure.

Note: This Question is unanswered, help us to find answer for this one

24. What is Coulomb's equation named after?

Answer

Correct Answer: Charles Augustin Coulomb

Note: This Question is unanswered, help us to find answer for this one

25. What is Coulomb's equation?

Answer

Correct Answer: An equation relating the shear strength of soil to the normal effective stress on the failure plane.

Note: This Question is unanswered, help us to find answer for this one

26. What is the name of the earth pressure theory that includes friction between the soil and retaining structure?

Answer

Correct Answer: Coulomb earth pressure theory

Note: This Question is unanswered, help us to find answer for this one

27. What does Coulomb earth pressure theory take into account?

Answer

Correct Answer: Friction between the soil and retaining structure

Note: This Question is unanswered, help us to find answer for this one

28. What is a horizontally long footing which supports a wall called?

Answer

Correct Answer: Continuous footing

Note: This Question is unanswered, help us to find answer for this one

29. What is a continuous footing?

Answer

Correct Answer: A horizontally long footing supporting a wall.

Note: This Question is unanswered, help us to find answer for this one

30. What is a consolidation test used for?

Answer

Correct Answer: Predicting consolidation of a soil under applied structural loads

Note: This Question is unanswered, help us to find answer for this one

31. What is the consistency index?

Answer

Correct Answer: A measure of the relationship between the current water content and the consistency limits.

Note: This Question is unanswered, help us to find answer for this one

32. What is the consistency index a measure of?

Answer

Correct Answer: The relationship between the current water content and the consistency limits.

Note: This Question is unanswered, help us to find answer for this one

33. What is water content of clay relative to the Atterberg limits?

Answer

Correct Answer: Consistency

Note: This Question is unanswered, help us to find answer for this one

34. What is an aquifer?

Answer

Correct Answer: A body of water beneath the earth's surface from which water may be drawn by natural means.

Note: This Question is unanswered, help us to find answer for this one

35. What is the point of the cone used in a cone penetration test?

Answer

Correct Answer: 60º

Note: This Question is unanswered, help us to find answer for this one

36. Cone resistance is measured during which test?

Answer

Correct Answer: Cone penetration test

Note: This Question is unanswered, help us to find answer for this one

37. What is the compression test used for?

Answer

Correct Answer: To measure the amount of compression the soil undergoes.

Note: This Question is unanswered, help us to find answer for this one

38. What is the purpose of the compression test?

Answer

Correct Answer: To estimate the amount of compression the soil undergoes

Note: This Question is unanswered, help us to find answer for this one

39. What is the compressibility index?

Answer

Correct Answer: The logarithmic slope of the primary consolidation curve.

Note: This Question is unanswered, help us to find answer for this one

40. What causes compaction?

Answer

Correct Answer: Vibration, self-weight

Note: This Question is unanswered, help us to find answer for this one

41. What are colluvial soils?

Answer

Correct Answer: Soils deposited at the base of foot-hills via gravity or erosion.

Note: This Question is unanswered, help us to find answer for this one

42. Colluvial soils are deposited at the base of _____.

Answer

Correct Answer: Foot-hills

Note: This Question is unanswered, help us to find answer for this one

43. What is the force that holds together molecules or like particles within a substance called?

Answer

Correct Answer: Cohesion

Note: This Question is unanswered, help us to find answer for this one

44. What is the definition of a cohesionless soil?

Answer

Correct Answer: Granular soils (sand and gravel type) with values of cohesion close to zero.

Note: This Question is unanswered, help us to find answer for this one

45. What is a cofferdam?

Answer

Correct Answer: A temporary structure used to enclose a construction area, and prevent soil or water from entering the construction area.

Note: This Question is unanswered, help us to find answer for this one

46. What is the coefficient of uniformity a measure of?

Answer

Correct Answer: The slope of a grain size distribution curve

Note: This Question is unanswered, help us to find answer for this one

47. What is coefficient of secondary consolidation?

Answer

Correct Answer: The change in volumetric strain per a logarithmic cycle of time after primary consolidation is complete.

Note: This Question is unanswered, help us to find answer for this one

48. What is the definition of coefficient of permeability?

Answer

Correct Answer: Hydraulic conductivity

Note: This Question is unanswered, help us to find answer for this one

49. What is the coefficient of curvature a measure of?

Answer

Correct Answer: Shape parameter obtained from a grain size distribution curve.

Note: This Question is unanswered, help us to find answer for this one

50. What is the coefficient of curvature?

Answer

Correct Answer: A measure of the shape parameter obtained from a grain size distribution curve.

Note: This Question is unanswered, help us to find answer for this one

51. What is the coefficient of consolidation?

Answer

Correct Answer: The rate of change of volume during primary consolidation.

Note: This Question is unanswered, help us to find answer for this one

52. What is the unit of Coefficient of Consolidation?

Answer

Correct Answer: Ft²/day, m²/s

Note: This Question is unanswered, help us to find answer for this one

53. What is the coefficient of compressibility?

Answer

Correct Answer: The ratio of void ratio difference to the effective pressure difference

Note: This Question is unanswered, help us to find answer for this one

54. The coefficient of compressibility is the ratio of what to what?

Answer

Correct Answer: Void ratio difference to the effective pressure difference

Note: This Question is unanswered, help us to find answer for this one

55. What is the size range of cobbles?

Answer

Correct Answer: 3 inches (76 mm) to 12 inches (305 mm)

Note: This Question is unanswered, help us to find answer for this one

56. What is the minimum percentage of grains retained on the #200 sieve for a soil to be considered coarse-grained?

Answer

Correct Answer: 50%

Note: This Question is unanswered, help us to find answer for this one

57. What is the definition of coarse-grained soils?

Answer

Correct Answer: Soils with more than 50% by weight of grains retained on the #200 sieve (0.075mm).

Note: This Question is unanswered, help us to find answer for this one

58. What is the size of Clay Soil particles?

Answer

Correct Answer: 0.002 mm

Note: This Question is unanswered, help us to find answer for this one

59. What is a circular footing?

Answer

Correct Answer: Isolated/ spread footing that is circular shaped.

Note: This Question is unanswered, help us to find answer for this one

60. What produces capillary stresses?

Answer

Correct Answer: Surface tension of pore water

Note: This Question is unanswered, help us to find answer for this one

61. Which of the following is not a result of capillary stresses?

Answer

Correct Answer: Pore water pressures greater than atmospheric values

Note: This Question is unanswered, help us to find answer for this one

62. What is the California Bearing Ratio (CBR) used for?

Answer

Correct Answer: To determine the suitability of a soil for use as a subbase in a pavement section.

Note: This Question is unanswered, help us to find answer for this one

63. What does CBR stand for?

Answer

Correct Answer: California Bearing Ratio

Note: This Question is unanswered, help us to find answer for this one

64. What is a Caisson?

Answer

Correct Answer: A component of a particular foundation system.

Note: This Question is unanswered, help us to find answer for this one

65. Buoyant density is equal to what?

Answer

Correct Answer: Soil density - Density of water

Note: This Question is unanswered, help us to find answer for this one

66. What is the bulk unit weight?

Answer

Correct Answer: The total weight of water and soil particles contained in a unit volume of soil.

Note: This Question is unanswered, help us to find answer for this one

67. What is the unit of measurement for Bulk density?

Answer

Correct Answer: Pcf

Note: This Question is unanswered, help us to find answer for this one

68. What is the mass of water and soil particles contained in a unit volume of soil called?

Answer

Correct Answer: Bulk density

Note: This Question is unanswered, help us to find answer for this one

69. What is the British Soil Classification System based on?

Answer

Correct Answer: Size, consistency and structure

Note: This Question is unanswered, help us to find answer for this one

70. What does the British Soil Classification System classify soils on?

Answer

Correct Answer: Size, consistency, and structure.

Note: This Question is unanswered, help us to find answer for this one

71. What is braced excavation?

Answer

Correct Answer: The use of bracing to laterally support the side-walls of temporary trenches or cuts.

Note: This Question is unanswered, help us to find answer for this one

72. What is a borrow?

Answer

Correct Answer: A site that is used to supply soils for earthwork construction

Note: This Question is unanswered, help us to find answer for this one

73. What is the definition of bedrock?

Answer

Correct Answer: Strong rock underlying surface deposits of soil and weathered rock.

Note: This Question is unanswered, help us to find answer for this one

74. What is the total stress transferred from the structure to the foundation called?

Answer

Correct Answer: Bearing pressure

Note: This Question is unanswered, help us to find answer for this one

75. What does bearing pressure refer to?

Answer

Correct Answer: The total stress transferred from the structure to the foundation, then to the soil below the foundation.

Note: This Question is unanswered, help us to find answer for this one

76. What do bearing capacity factors represent?

Answer

Correct Answer: The angle of internal friction of the soil

Note: This Question is unanswered, help us to find answer for this one

77. What is the definition of bearing capacity?

Answer

Correct Answer: The ability of the underlying soil to support the foundation loads without shear failure.

Note: This Question is unanswered, help us to find answer for this one

78. What is the sum of the confining and vertical stresses along an axis of a triaxial test sample called?

Answer

Correct Answer: Axial stress

Note: This Question is unanswered, help us to find answer for this one

79. What is axial stress?

Answer

Correct Answer: Total or effective stress acting along an axis of a triaxial test sample.

Note: This Question is unanswered, help us to find answer for this one

80. What is axial strain?

Answer

Correct Answer: Direct strain measured along an axis of a triaxial test sample.

Note: This Question is unanswered, help us to find answer for this one

81. What do the Atterberg Limits test for?

Answer

Correct Answer: The transition between a solid, semi-solid, plastic solid or liquid

Note: This Question is unanswered, help us to find answer for this one

82. What are the Atterberg Limits?

Answer

Correct Answer: The water contents of a soil mass corresponding to the transition between a solid, semi-solid, plastic solid or liquid.

Note: This Question is unanswered, help us to find answer for this one

83. What is at-rest earth pressure?

Answer

Correct Answer: The horizontal stress developed in a mass of soil loaded in conditions of zero horizontal strain.

Note: This Question is unanswered, help us to find answer for this one

84. What is the definition of artesian?

Answer

Correct Answer: A condition that exists when the water table piezometric surface lies above the ground level.

Note: This Question is unanswered, help us to find answer for this one

85. What is the meaning of "Aquifer"?

Answer

Correct Answer: A stratum of soil with relatively high permeability; a water-bearing stratum of rock or soil.

Note: This Question is unanswered, help us to find answer for this one

86. What does the term "anisotropic" refer to?

Answer

Correct Answer: Soil having different properties in different directions

Note: This Question is unanswered, help us to find answer for this one

87. What is the ratio between the relative deflection between two points in a foundation and the distance between them called?

Answer

Correct Answer: Angular distortion

Note: This Question is unanswered, help us to find answer for this one

88. What is the angle of wall friction?

Answer

Correct Answer: The angle of friction between soil and the surface of a retaining wall or bottom side of a foundation.

Note: This Question is unanswered, help us to find answer for this one

89. The angle of friction between soil and the bottom side of a foundation is known as the ___________.

Answer

Correct Answer: Angle of wall friction

Note: This Question is unanswered, help us to find answer for this one

90. What is the angle referred to horizontal of a plane or other surface along which a discontinuous slip or rupture may occur?

Answer

Correct Answer: Angle of slip plane

Note: This Question is unanswered, help us to find answer for this one

91. Angle of slip plane refers to the angle of ________.

Answer

Correct Answer: A plane or other surface along which a discontinuous slip or rupture may occur

Note: This Question is unanswered, help us to find answer for this one

92. What does the angle of shearing resistance measure?

Answer

Correct Answer: The ratio of effective shear and normal stresses mobilized at any state prior to failure.

Note: This Question is unanswered, help us to find answer for this one

93. What is the angle of repose?

Answer

Correct Answer: The maximum angle, just before failure, of a slope composed of granular material

Note: This Question is unanswered, help us to find answer for this one

94. At which angle does shear failure occur for a given soil?

Answer

Correct Answer: Angle of internal friction

Note: This Question is unanswered, help us to find answer for this one

95. What does AASHTO stand for?

Answer

Correct Answer: American Association of State Highway Transportation Officials' Classification System

Note: This Question is unanswered, help us to find answer for this one

96. What are alluvial soils?

Answer

Correct Answer: Soils deposited in a valley or slightly graded area by transporting sediments through a mountain river or streams.

Note: This Question is unanswered, help us to find answer for this one

97. The bearing pressure that can be allowed on a foundation soil is called the ___________.

Answer

Correct Answer: Allowable bearing capacity

Note: This Question is unanswered, help us to find answer for this one

98. The air-voids ratio is the ratio of _____.

Answer

Correct Answer: The volume of air to the total volume of a mass of soil

Note: This Question is unanswered, help us to find answer for this one

99. What is the air-void ratio?

Answer

Correct Answer: The ratio of the volume of air to the total volume of a mass of soil.

Note: This Question is unanswered, help us to find answer for this one

100. What is Adhesion?

Answer

Correct Answer: The shear resistance between soil and a structure

Note: This Question is unanswered, help us to find answer for this one

101. What is the shear resistance between soil and a structure called?

Answer

Correct Answer: Adhesion

Note: This Question is unanswered, help us to find answer for this one

102. What is the ratio of plasticity index to percent by weight of clay?

Answer

Correct Answer: The ratio of plasticity index to percent by weight of clay.

Note: This Question is unanswered, help us to find answer for this one

103. What is the purpose of an Active Zone?

Answer

Correct Answer: The area behind a retaining structure that is above the failure plane.

Note: This Question is unanswered, help us to find answer for this one

104. What is the area behind a retaining structure called if it is above the failure plane?

Answer

Correct Answer: Active (Rankine) zone

Note: This Question is unanswered, help us to find answer for this one

105. What is the horizontal stress exerted by a mass of soil on a retaining wall called?

Answer

Correct Answer: Active earth pressure

Note: This Question is unanswered, help us to find answer for this one

106. Retaining walls are used to resist _____.

Answer

Correct Answer: The horizontal stress exerted by a mass of soil

Note: This Question is unanswered, help us to find answer for this one

search