soil mechanics and foundation engineering MCQs – Page 4

Practise focused soil mechanics and foundation engineering questions with marked answers for exam preparation and subject revision.

soil mechanics and foundation engineering Mcqs

61. The angle that Coulombs failure envelope makes with the horizontal is called________________?
0

A. angle of internal friction

B. none of the above

C. cohesion

D. angle of repose

62. The value of compression index for a remoulded sample whose liquid limit is 50% is______________?
0

A. 36

B. 0.28

C. 0.028

D. 0.036

63. Which of the following methods is best suited for determination of permeability of coarse-grained soils ?
0

A. constant head method

B. falling head method

C. both the above

D. none of the above

64. Terzaghis bearing capacity factors Nc, Nq and Nr are functions of______________?
0

A. cohesion only

B. angle of internal friction only

C. both cohesion and angle of internal friction

D. none of the above

65. Compressibility of sandy soils is______________?
0

A. much greater than that of clayey soils

B. none of the above

C. almost equal to that of clayey soils

D. much less than that of clayey soils

66. Dispersed type of soil structure is an arrangement comprising particles having______________?
0

A. face to face or parallel orientation

B. edge to face orientation

C. edge to edge orientation

D. all of the above

67. The water content of soil, which represents the boundary between plastic state and liquid state, is known as_________________?
0

A. liquid limit

B. shrinkage limit

C. plastic limit

D. plasticity index

68. Within the consolidation process of a saturated clay__________________?
0

A. a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant

B. a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant

C. both neutral pressure and effective pressure decrease

D. both neutral pressure and effective pressure increase

69. In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear________________?
0

A. increases

B. decreases

C. first increases and then decreases

D. remains unchanged

70. Rankines theory of earth pressure assumes that the back of the wall is_______________?
0

A. plane and smooth

B. vertical and rough

C. plane and rough

D. vertical and smooth

71. The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in_____________?
0

A. the method of taking observations

B. the principle of test

C. the method of preparation of soil suspension

D. all of the above

72. Select the incorrect statement?
0

A. Bearing capacity of a soil depends on the type of soil

B. Bearing capacity of a soil depends upon the amount and direction of load

C. Bearing capacity of a soil is indepen-dent of rate of loading

D. Bearing capacity of a soil depends upon shape and size of footing

73. In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as__________________?
0

A. unconsolidated drained test

B. consolidated undrained test

C. unconsolidated undrained test

D. consolidated drained test

74. The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is________________?
0

A. 0.0045 m3/sec

B. 0.1125m3/sec

C. 0.00018 nrVsec

D. 0.18m3/sec

75. Select the correct statement?
0

A. Unit weight does not affect per-meability

B. The greater the unit weight, the greater is permeability

C. The greater the unit weight, the smaller is permeability

D. The greater the viscosity, the greater is permeability

76. A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesionless 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_______________?
0

A. 25 mm

B. between 15 mm and 25 mm

C. 15 mm

D. greater than 25 mm

77. If the plasticity index of a soil mass is zero, the soil is______________?
0

A. clay

B. silt

C. clayey silt

D. sand

78. The shear strength of a soil_________________?
0

A. is inversely proportional to the angle of internal friction of the soil

B. decreases with decrease in normal stress

C. decreases with increase in normal stress

D. is directly proportional to the angle of internal friction of the soil

79. Coefficient of compressibility is_______________?
0

A. different for different types of soils but same for a soil under different states of consolidation

B. constant for any type of soil

C. different for different types of soils and also different for a soil under different states of consolidation

D. independent of type of soil but depends on the stress history of soil

80. The ratio of volume of voids to the total volume of soil mass is called______________?
0

A. porosity

B. air content

C. percentage air voids

D. voids ratio

Previous Next

Showing 61 to 80 of 119 mcqs