MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 193 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. |
According to Rankine’s formula, the minimum depth of foundation (h) computed with gross bearing capacity (p), density of soil (γ) and angle repose (ϕ) is: |
| A. | \(h = \frac{p}{\gamma }{\left[ {\frac{{1 - \sin \phi }}{{1 + \tan \phi }}} \right]^2}\) |
| B. | \(h = \frac{\gamma}{p }{\left[ {\frac{{1 - \sin \phi }}{{1+ \sin \phi }}} \right]^2}\) |
| C. | \(h = \frac{p}{\gamma }{\left[ {\frac{{1 - \sin \phi }}{{1 + \sin \phi }}} \right]^2}\) |
| D. | \(h = \frac{p}{\gamma }{\left[ {\frac{{1 + \sin \phi }}{{1 - \sin \phi }}} \right]^2}\) |
| Answer» D. \(h = \frac{p}{\gamma }{\left[ {\frac{{1 + \sin \phi }}{{1 - \sin \phi }}} \right]^2}\) | |
| 52. |
Consider the following statements:1. The ultimate bearing capacity of a footing on sand increases with an increases in its width.2. The settlement of the footing on sand increases with increase in its width.Which of the above statements are correct? |
| A. | 1 only |
| B. | Both 1 and 2 |
| C. | 2 only |
| D. | Neither 1 nor 2 |
| Answer» C. 2 only | |
| 53. |
A 30 cm diameter friction pile is embedded 10 m into a homogenous consolidated deposit. Unit adhesion developed between clay and pile shaft is 4 t/m2 and the adhesion factor is 0.7. If the factor of safety to be adopted is 3.0, then what would be safe load carrying capacity of the friction pile? |
| A. | 26.4 t |
| B. | 13.3 t |
| C. | 10.5 t |
| D. | 8.8 t |
| Answer» E. | |
| 54. |
A square pile of section 30 cm x 30 cm and length 10 m penetrates a deposit of clay having c = 50 kN/m2 and the adhesion factor = 0.8. The load carried by the pile shaft only is |
| A. | 1920 kN |
| B. | 750 kN |
| C. | 600 kN |
| D. | 480 kN |
| Answer» E. | |
| 55. |
A circular raft foundation of 20 m diameter and 1.6 m thick is provided for a tank that applies a bearing pressure of 110 kPa on sandy soil with Young's modulus, ES' = 30 MPa and Poisson's ratio, υS = 0.3. The raft is made of concrete (EC = 30 GPa and υC = 0.15). Considering the raft as rigid, the elastic settlement (in mm) is |
| A. | 50.96 |
| B. | 53.36 |
| C. | 63.72 |
| D. | 66.71 |
| Answer» C. 63.72 | |
| 56. |
Following are the statements about the major differences between Terzaghi's analysis ('T') and Meyerhof's analysis ('M) of bearing capacity:a. 'T' is for homogeneous and isotropic soils but 'M' accounts for non-isotropy.b. In · 'T', the failure surfaces form up to founding level but in 'M', they are extended up to ground level.c. In 'T', the angle of wedge-formed beneath the foundation is assumed to be equal to the angle of internal friction of the soil but in 'M', it variesd. In 'T', the load acting on the foundation is concentric and vertical but in 'M', it is assumed as eccentric.Ascertain the correctness of the above statements and write the correct code |
| A. | Statement a is the only correct statement |
| B. | Statements a and b are correct |
| C. | Statements b and c are correct |
| D. | Statements a and d are correct |
| Answer» D. Statements a and d are correct | |
| 57. |
Match the conditions under which the given type of footing is used: a. Combined footing I. For two or more columns b. Mat foundation II. For isolated or group of columns c. Pile foundation III. For individual column d. Isolated footing IV. For supporting all columns of structure |
| A. | a – II, b - III, c - IV, d - I |
| B. | a - I, b - IV, c - II, d - III |
| C. | a - II, b - I, c - III, d - IV |
| D. | a - II, b - IV, c - I, d - III |
| Answer» C. a - II, b - I, c - III, d - IV | |
| 58. |
In a plate load test on a soil, at a particular magnitude of the settlement, it was observed that the bearing pressure beneath the footing is 100 kN/m2 and the perimeter shear is 25 kN/m2. Corresponding, the load capacity of a 2 m square footing at the same settlement will be |
| A. | 200 kN |
| B. | 300 kN |
| C. | 400 kN |
| D. | 600 kN |
| Answer» E. | |
| 59. |
For the pile group shown in the figure, the efficiency of the pile group determine by Feld’s rule is\(\begin{array}{*{20}{c}}0&{}&0\\{}&0&{}\\0&{}&0\end{array}\) |
| A. | 80% |
| B. | 85% |
| C. | 88% |
| D. | 90% |
| Answer» B. 85% | |
| 60. |
A foundation is considered to be shallow, if its depth is _______. |
| A. | greater than 1 meter |
| B. | greater than its width |
| C. | less than 1 meter |
| D. | equal to or less than its width |
| Answer» E. | |
| 61. |
A 0.5 × 0.5m square concrete pile is to be driven in a homogeneous clayey soil having undrained shear strength, cu = 50 kPa and unit weight, g = 3180 kN/m3. The design capacity of the pile is 500 kN. The adhesion factor a is given as 0.75. The length of the pile required for the above design load with a factor of safety of 2.0 is |
| A. | 5.2 m |
| B. | 5.8 m |
| C. | 11.8 m |
| D. | 12.5 m |
| Answer» D. 12.5 m | |
| 62. |
Minimum centre to centre spacing of friction piles of diameter (D) is |
| A. | 2 D |
| B. | 3 D |
| C. | 4 D |
| D. | 5 D |
| Answer» C. 4 D | |
| 63. |
As per IS:2974 Part I, the size of the foundation block (in plan) should be larger than the bed plate of the machine with a minimum all-round clearance of: |
| A. | 70 cm |
| B. | 110 cm |
| C. | 15 cm |
| D. | 25 cm |
| E. | 10 cm |
| Answer» D. 25 cm | |
| 64. |
Fender piles are |
| A. | Used to function as retaining walls |
| B. | Used to protect concrete deck or other water front structures from the abrasion or impact |
| C. | Driven at an inclination to resist large horizontal inclined forces |
| D. | Driven in granular soil with the aim of increasing the bearing capacity of the soil |
| Answer» C. Driven at an inclination to resist large horizontal inclined forces | |
| 65. |
In a plate load test on sandy soil, the test plate of 60 cm × 60 cm undergoes a settlement of 5 mm at a pressure of 12 × 104 N/m2 . What will be the expected settlement of 3m × 3m footing under the same pressure? |
| A. | 9 mm |
| B. | 15 mm |
| C. | 20 mm |
| D. | 25 mm |
| Answer» B. 15 mm | |
| 66. |
A strip footing is resting on the ground surface of a pure clay bed having an undrained cohesion cu. The ultimate bearing capacity of the footing is equal to |
| A. | 2πcu |
| B. | πcu |
| C. | (π + 1)cu |
| D. | (π + 2)cu |
| Answer» E. | |
| 67. |
Immediate settlement of cohesionless soils are given by |
| A. | \({{\rm{S}}_{\rm{i}}} = {\rm{qB\;}}\left( {\frac{{1 - {{\rm{\mu }}^2}}}{{{{\rm{E}}_{\rm{s}}}}}} \right)\) |
| B. | \({{\rm{S}}_{\rm{i}}} = \frac{{\rm{H}}}{{\rm{C}}}{\log _{\rm{e}}}\frac{{{{{\rm{\bar \sigma }}}_0} + {\rm{\Delta \bar \sigma }}}}{{{{{\rm{\bar \sigma }}}_0}}}\) |
| C. | \({{\rm{S}}_{\rm{i}}} = \frac{{{{\rm{E}}_{\rm{s}}}\left( {1 - {{\rm{\mu }}^2}} \right){\rm{I}}}}{{{\rm{qB}}}}\) |
| D. | \({{\rm{S}}_{\rm{i}}} = \frac{{\rm{C}}}{{\rm{H}}}{\log _{\rm{e}}}\frac{{{{{\rm{\bar \sigma }}}_0} + {\rm{\Delta \bar \sigma }}}}{{{{{\rm{\bar \sigma }}}_0}}}\) |
| Answer» B. \({{\rm{S}}_{\rm{i}}} = \frac{{\rm{H}}}{{\rm{C}}}{\log _{\rm{e}}}\frac{{{{{\rm{\bar \sigma }}}_0} + {\rm{\Delta \bar \sigma }}}}{{{{{\rm{\bar \sigma }}}_0}}}\) | |
| 68. |
A drop hammer is used to drive a wooden pile. The hammer weight is 25 kN and its free falling height is 0.8 m. The penetration in the last blow is 12 mm. What is the nearest approximation to the Load carrying capacity of the pile according to the Engineering News Formula Is? |
| A. | 125 kN |
| B. | 110 kN |
| C. | 3000 kN |
| D. | 90 kN |
| Answer» E. | |
| 69. |
A strip footing 2 m in width, with its base at a depth of 1.5 m below ground surface, rests on a saturated clay soil with γsat = 20 kN/m3; cu = 40 kN/m2; ϕu = 0; c’ = 10 kN/m2; and ϕ’ = 20°. The natural water table is at 1 m depth below ground level. As per IS: 6403 – 1981, the ultimate bearing capacity of this footing will be (taking the relevant Nc as 5.14) |
| A. | 327 kN/m2 |
| B. | 285 kN/m2 |
| C. | 253 kN/m2 |
| D. | 231 kN/m2 |
| Answer» E. | |
| 70. |
A purely cohesive soil was tested by unconfined compression test. The mean unconfined compression strength was obtained as 50 kN/ sq.m. The net ultimate bearing capacity of the soil adopting terzaghi's concept will be (adopt bearing capacity factor = 5.7, 1 kg approximately equal to 10 N). |
| A. | 90 kN/sq.m |
| B. | 120 kN/ sq.m |
| C. | 142.50 kN/sq.m |
| D. | 162.50 kN/ sq.m |
| Answer» D. 162.50 kN/ sq.m | |
| 71. |
Consider the following statements regarding a Grillage Foundation:1. It is provided for heavily loaded isolated columns.2. It is treated as a spread foundation.3. It consists of two sets of perpendicularly placed steel columns.Which of the above statements are correct? |
| A. | 1 and 2 only |
| B. | 1 and 3 only |
| C. | 2 and 3 only |
| D. | 1, 2 and 3 |
| Answer» B. 1 and 3 only | |
| 72. |
In a plate load test bearing plate size which is recommended |
| A. | Minimum 30 cm, Maximum 75 cm |
| B. | Minimum 50 cm, Maximum 500 cm |
| C. | Minimum 100 cm, Maximum 500 cm |
| D. | Minimum 75 cm, Maximum 300 cm |
| Answer» B. Minimum 50 cm, Maximum 500 cm | |
| 73. |
Group I enlists in-situ field tests carried out for soil exploration, while Group II provides a list of parameters for sub-soil strength characterization. Match the type of tests with the characterization parameters.Group IGroup IIP. Pressuremeter Test (PMT)1. Menard’s modulus (Em)Q. Static Cone Penetration Test (SCPT)2. Number of blows (N)R. Standard Penetration Test (SPT)3. Skin resistance (fC)S. Vane Shear Test (VST)4. Undrained cohesion (CU) |
| A. | P - 1; Q - 3; R - 2; S - 4 |
| B. | P - 1; Q - 2; R - 3; S - 4 |
| C. | P - 2; Q - 3; R - 4; S - 1 |
| D. | P - 4; Q - 1; R - 2; S - 3 |
| Answer» B. P - 1; Q - 2; R - 3; S - 4 | |
| 74. |
In which type of foundation the length is considerably greater than its width? |
| A. | Raft foundation |
| B. | Pile foundation |
| C. | Footing |
| D. | Strip foundation |
| Answer» E. | |
| 75. |
A strip footing is resting on the surface of a purely clayey soil deposit. If the width of the footing is doubled, the ultimate bearing capacity of the soil: |
| A. | Becomes double |
| B. | Becomes half |
| C. | Becomes four-times |
| D. | Remains the same |
| Answer» E. | |
| 76. |
______ failure is a mode of failure in a very deep footing in dense sand. |
| A. | Punching shear |
| B. | General shear |
| C. | Local shear |
| D. | Buckling |
| E. | Twisting |
| Answer» B. General shear | |
| 77. |
For multi-storeyed buildings having isolated foundations on sand, the maximum permissible settlement is |
| A. | 50 mm |
| B. | 60 mm |
| C. | 75 mm |
| D. | 100 mm |
| Answer» C. 75 mm | |
| 78. |
Piles which are driven into the ground until a hard stratum is reached are termed as |
| A. | friction piles |
| B. | bearing piles |
| C. | sheet piles |
| D. | batter piles |
| Answer» C. sheet piles | |
| 79. |
Dynamic formulae are best suited for: |
| A. | silt |
| B. | coarse grained soils |
| C. | clayey soil |
| D. | fine grained soil |
| E. | alluvial soil |
| Answer» C. clayey soil | |
| 80. |
From the plate load test, the ultimate bearing capacity of plate of size 0.3 m × 0.3 m on sand deposit is observed to be 200 kN/m2, the ultimate bearing capacity of a footing of size 1.5 m × 1.5 m will be: |
| A. | 200 kN/m2 |
| B. | 1000 kN/m2 |
| C. | 500 kN/m2 |
| D. | 2000 kN/m2 |
| Answer» C. 500 kN/m2 | |
| 81. |
Negative friction may develop if the material is loose _______ soil. |
| A. | Cohesive |
| B. | Cohesionless |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» C. Both (A) and (B) | |
| 82. |
A gross bearing capacity of a 2.0m wide strip footing at a depth of 1.5m is 450 KN/m2. If γ = 20KN/m3, what is the net bearing capacity? |
| A. | 400 KN/m2 |
| B. | 410 KN/m2 |
| C. | 420 KN/m2 |
| D. | 430 KN/m2 |
| Answer» D. 430 KN/m2 | |
| 83. |
A pile having a square cross-section of 0.5 m sides has length of 10 m. It is embedded in purely cohesive soil having uniform cohesion of 50 kN/sq. m up to 10 m depth. If adhesion factor = 0.5, the ultimate capacity of the pile considering only skin friction component will be: |
| A. | 500 kN |
| B. | 125 kN |
| C. | 250 kN |
| D. | 200 kN |
| Answer» B. 125 kN | |
| 84. |
According to Skempton’s formula for a surface floating of square shape, the net ultimate bearing capacity on a purely cohesive soil of cohesion ‘C’ is |
| A. | 1.4 C |
| B. | 6.0 C |
| C. | 7.4 C |
| D. | 9.0 C |
| Answer» C. 7.4 C | |
| 85. |
Bearing Capacity of soil is defined as |
| A. | Maximum load / Unit depth |
| B. | Maximum load / Unit area |
| C. | Minimum load / Unit depth |
| D. | Minimum load / Unit area |
| Answer» C. Minimum load / Unit depth | |
| 86. |
Arrange the bearing capacities of shallow foundation in descending order (from highest to lowest):(i) Ultimate Bearing Capacity(ii) Net Ultimate Bearing Capacity(iii) Net Safe Bearing Capacity(iv) Gross Safe Bearing Capacity |
| A. | (i), (ii), (iv), (iii) |
| B. | (i), (ii), (iii), (iv) |
| C. | (ii), (i), (iii), (iv) |
| D. | (ii), (i), (iv), (iii) |
| Answer» B. (i), (ii), (iii), (iv) | |
| 87. |
I.S. Code of practice for design of raft foundation is: |
| A. | IS 456: 2000 |
| B. | IS 1080: 1985 |
| C. | IS 1904:1986 |
| D. | IS 2950: 1981 |
| Answer» E. | |
| 88. |
Batter Piles are designed to carry which type of load? |
| A. | Uplift Load |
| B. | Lateral Load |
| C. | Load due to negative skin friction |
| D. | Buckling load |
| Answer» C. Load due to negative skin friction | |
| 89. |
A raft foundation 10 m wide and 12 m long is to be constructed in a clayey soil having shear strength of 12 kN/m2. Unit weight of soil is 16 kN/m3. The ground surface carries a surcharge of 20 kN/m2; the factor of safety is 1.2 and the value of Nc = 5.7. The safe depth of foundation will be nearly |
| A. | 8.2 m |
| B. | 7.3 m |
| C. | 6.4 m |
| D. | 5.5 m |
| Answer» E. | |
| 90. |
In the plate loading test for determining the bearing capacity of soils, the size of the square bearing plate should be |
| A. | Less than 300 mm |
| B. | Between 300 mm and 750 mm |
| C. | Between 750 mm and 1 m |
| D. | Greater than 1 m |
| Answer» C. Between 750 mm and 1 m | |
| 91. |
A seating pressure of ___________ is applied on the plate before starting the load test. |
| A. | 70 g/cm² |
| B. | 30 g/cm² |
| C. | 50 g/cm² |
| D. | 100 g/cm² |
| Answer» B. 30 g/cm² | |
| 92. |
The plate load test consists in loading a rigid plate at the _________ |
| A. | Base of the footing |
| B. | Bottom of the construction |
| C. | Foundation level |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 93. |
The vertical downward movement of the base of the structure is called __________ |
| A. | Penetration resistance |
| B. | Settlement |
| C. | Effective pressure |
| D. | Shear failure |
| Answer» C. Effective pressure | |
| 94. |
For cohesion less soils, having c=0 Indian standard code recommends that the bearing capacity can be calculated based on __________ |
| A. | Relative density |
| B. | Standard penetration resistance value |
| C. | Static cone penetration |
| D. | All of the mentioned |
| Answer» E. | |
| 95. |
The total blow required for the second and third 15 cm of penetration in standard penetration test is taken as ____________ |
| A. | Seating drive |
| B. | Penetration resistance |
| C. | Overburden pressure |
| D. | Dilatancy/submergence |
| Answer» B. Penetration resistance | |
| 96. |
The cone resistance qc, for sandy silt type of soil is __________ |
| A. | 3.5 |
| B. | 6 |
| C. | 2 |
| D. | 5 |
| Answer» D. 5 | |
| 97. |
The size of bearing plate, which used in plate load test varies from ___________ |
| A. | 300 to 750 mm |
| B. | 25 to 100 mm |
| C. | 100 to 300 mm |
| D. | 25 to 300 mm |
| Answer» B. 25 to 100 mm | |
| 98. |
Correction for increasing effective overburden pressure have been proposed by ___________ |
| A. | Gibbs and Holtz |
| B. | Peck |
| C. | Thornburn |
| D. | All of the mentioned |
| Answer» E. | |
| 99. |
The split tube used in static cone penetration test, is commonly known as ______________ |
| A. | Split spoon sampler |
| B. | Split tube sampler |
| C. | Tube sampler |
| D. | All of the mentioned |
| Answer» B. Split tube sampler | |
| 100. |
In general shear failure, continuous failure is developed between ______________ |
| A. | Ground surface and footing |
| B. | Edge of the footing and ground surface |
| C. | Foundation and the ground surface |
| D. | None of the mentioned |
| Answer» C. Foundation and the ground surface | |