MCQOPTIONS
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MCQOPTIONS
This section includes 155 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Coefficient of permeability of soil |
| A. | oes not depend upon temperature |
| B. | ncreases with the increase in temperature |
| C. | ncreases with the decrease in temperature |
| D. | one of the above |
| Answer» C. ncreases with the decrease in temperature | |
| 52. |
The admixture of coarser particles like sand or silt to clay causes |
| A. | ecrease in liquid limit and increase in plasticity index |
| B. | ecrease in liquid limit and no change in plasticity index |
| C. | ecrease in both liquid limit and plasticity index |
| D. | ncrease in both liquid limit and plasticity index |
| Answer» D. ncrease in both liquid limit and plasticity index | |
| 53. |
If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in |
| A. | iquid state |
| B. | lastic state |
| C. | emi-solid state |
| D. | olid state |
| Answer» C. emi-solid state | |
| 54. |
Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of |
| A. | ohesion only |
| B. | ngle of internal friction only |
| C. | oth cohesion and angle of internal friction |
| D. | one of the above |
| Answer» C. oth cohesion and angle of internal friction | |
| 55. |
Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by |
| A. | 5% |
| B. | 0% |
| C. | 5% |
| D. | 0% |
| Answer» C. 5% | |
| 56. |
The angle that Coulomb’s failure envelope makes with the horizontal is called |
| A. | ohesion |
| B. | ngle of internal friction |
| C. | ngle of repose |
| D. | one of the above |
| Answer» C. ngle of repose | |
| 57. |
A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is |
| A. | 5 mm |
| B. | 0 mm |
| C. | 0 mm |
| D. | 67 mm |
| Answer» D. 67 mm | |
| 58. |
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 |
| A. | 5 mm |
| B. | etween 15 mm and 25 mm |
| C. | 5 mm |
| D. | reater than 25 mm |
| Answer» C. 5 mm | |
| 59. |
The ratio of volume of voids to the total volume of soil mass is called |
| A. | ir content |
| B. | orosity |
| C. | ercentage air voids |
| D. | oids ratio |
| Answer» C. ercentage air voids | |
| 60. |
Coefficient of consolidation of a soil is affected by |
| A. | ompressibility |
| B. | ermeability |
| C. | oth compressibility and permeability |
| D. | one of the above |
| Answer» D. one of the above | |
| 61. |
Uniformity coefficient of a soil is |
| A. | lways less than 1 |
| B. | lways equal to 1 |
| C. | qual to or less than 1 |
| D. | qual to or gi eater than 1 |
| Answer» E. | |
| 62. |
According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is |
| A. | < PI < 7 |
| B. | < 17 |
| C. | 7<27 |
| D. | I>27 |
| Answer» C. 7<27 | |
| 63. |
If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then |
| A. | he liquid limit of soil always increases |
| B. | he liquid limit of soil always decreases |
| C. | he liquid limit of soil may increase |
| D. | he liquid limit of soil may decrease |
| Answer» B. he liquid limit of soil always decreases | |
| 64. |
The clay mineral with the largest swelling and shrinkage characteristics is |
| A. | aolinite |
| B. | llite |
| C. | ontmorillonite |
| D. | one of the above |
| Answer» D. one of the above | |
| 65. |
When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as |
| A. | egative |
| B. | ero |
| C. | on-plastic (NP) |
| Answer» C. on-plastic (NP) | |
| 66. |
Coefficient of earth pressure at rest is |
| A. | ess than active earth pressure but greater than passive earth pressure |
| B. | reater than active earth pressure but less than passive earth pressure |
| C. | reater than both the active earth pressure and passive earth pressure |
| D. | ess than both the active and passive earth pressures |
| Answer» C. reater than both the active earth pressure and passive earth pressure | |
| 67. |
For a loose sand sample and a dense sand sample consolidated to the same effective stress |
| A. | ltimate strength is same and also peak strength is same |
| B. | ltimate strength is different but peak strength is same |
| C. | ltimate strength is same but peak strength of dense sand is greater than that of loose sand |
| D. | ltimate strength is same but peak |
| Answer» D. ltimate strength is same but peak | |
| 68. |
Select the correct range of density index,1D |
| A. | D > 0 |
| B. | D > 0 |
| C. | < 1D < 1 |
| D. | ≤ 1D ≤ 1 |
| Answer» E. | |
| 69. |
Degree of consolidation is |
| A. | irectly proportional to time and inversely proportional to drainage path |
| B. | irectly proportional to time and inversely proportional to square of drainage path |
| C. | irectly proportional to drainage path and inversely proportional to time |
| D. | irectly proportional to square of drainage path and inversely proportional to time |
| Answer» C. irectly proportional to drainage path and inversely proportional to time | |
| 70. |
Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is |
| A. | months |
| B. | months |
| C. | 2 months |
| D. | 4 months |
| Answer» B. months | |
| 71. |
For a loose sand sample and a dense sand sample consolidated to the same effective stress%! |
| A. | ultimate strength is same and also peak strength is same |
| B. | ultimate strength is different but peak strength is same |
| C. | ultimate strength is same but peak strength of dense sand is greater than that of loose sand |
| D. | ultimate strength is same but peak |
| Answer» D. ultimate strength is same but peak | |
| 72. |
The ultimate consolidation settlement of a soil is%! |
| A. | directly proportional to the voids ratio |
| B. | directly proportional to the compression index |
| C. | inversely proportional to the compression index |
| D. | none of the above |
| Answer» C. inversely proportional to the compression index | |
| 73. |
The angle that Coulomb’s failure envelope makes with the horizontal is called%! |
| A. | cohesion |
| B. | angle of internal friction |
| C. | angle of repose |
| D. | none of the above |
| Answer» C. angle of repose | |
| 74. |
The ratio of volume of voids to the total volume of soil mass is called%! |
| A. | air content |
| B. | porosity |
| C. | percentage air voids |
| D. | voids ratio |
| Answer» C. percentage air voids | |
| 75. |
According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is%! |
| A. | 0 < PI < 7 |
| B. | 7< 17<="" label=""> <> |
| C. | 17<27< label=""> <27<> |
| D. | PI>27 |
| Answer» C. 17<27< label=""> <27<> | |
| 76. |
Voids ratio of a soil mass can%! |
| A. | never be greater than unity |
| B. | be zero |
| C. | take any value greater than zero |
| D. | take values between 0 and 1 only |
| Answer» D. take values between 0 and 1 only | |
| 77. |
*$_If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is? |
| A. | less than specific gravity of soil |
| B. | equal to specific gravity of soil |
| C. | greater than specific gravity of soil |
| D. | independent of specific gravity of soil |
| Answer» C. greater than specific gravity of soil | |
| 78. |
*$_If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in? |
| A. | liquid state |
| B. | plastic state |
| C. | semi-solid state |
| D. | solid state |
| Answer» C. semi-solid state | |
| 79. |
*$_Unconfmed compressive strength test is? |
| A. | undrained test |
| B. | drained test |
| C. | consolidated undrained test |
| D. | consolidated drained test |
| Answer» B. drained test | |
| 80. |
*$_Sensitivity of a soil can be defined as? |
| A. | percentage of volume change of soil under saturated condition |
| B. | ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state |
| C. | ratio of volume of voids to volume of solids |
| D. | none of the above |
| Answer» C. ratio of volume of voids to volume of solids | |
| 81. |
*$_The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing? |
| A. | cohesion and effective angle of shearing resistance |
| B. | cohesion and effective unit weight of soil |
| C. | effective unit weight of soil and effective angle of shearing resistance |
| D. | effective angle of shearing resistance |
| Answer» C. effective unit weight of soil and effective angle of shearing resistance | |
| 82. |
*$_For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as? |
| A. | dry of OMC and wet of OMC |
| B. | wet of OMC and dry of OMC |
| C. | wet of OMC and wet of OMC |
| D. | dry of OMC and dry of OMC where OMC is optimum moisture content |
| Answer» C. wet of OMC and wet of OMC | |
| 83. |
*$_In a deposit of normally consolidated clay? |
| A. | effective stress increases with depth but water content of soil and un-drained strength decrease with depth |
| B. | effective stress and water content increase with depth but undrained strength decreases with depth |
| C. | effective stress and undrained strength increase with depth but water content decreases with depth |
| D. | effective stress, water content and undrained strength decrease with depth |
| Answer» D. effective stress, water content and undrained strength decrease with depth | |
| 84. |
*$_Which of the following methods is best suited for determination of permeability of coarse-grained soils ?? |
| A. | constant head method |
| B. | falling head method |
| C. | both the above |
| D. | none of the above |
| Answer» B. falling head method | |
| 85. |
*/*_For a loose sand sample and a dense sand sample consolidated to the same effective stress? |
| A. | ultimate strength is same and also peak strength is same |
| B. | ultimate strength is different but peak strength is same |
| C. | ultimate strength is same but peak strength of dense sand is greater than that of loose sand |
| D. | ultimate strength is same but peak |
| Answer» D. ultimate strength is same but peak | |
| 86. |
*/*_The ultimate consolidation settlement of a soil is? |
| A. | directly proportional to the voids ratio |
| B. | directly proportional to the compression index |
| C. | inversely proportional to the compression index |
| D. | none of the above |
| Answer» C. inversely proportional to the compression index | |
| 87. |
*/*_The ratio of volume of voids to the total volume of soil mass is called? |
| A. | air content |
| B. | porosity |
| C. | percentage air voids |
| D. | voids ratio |
| Answer» C. percentage air voids | |
| 88. |
*/*_The angle that Coulomb’s failure envelope makes with the horizontal is called? |
| A. | cohesion |
| B. | angle of internal friction |
| C. | angle of repose |
| D. | none of the above |
| Answer» C. angle of repose | |
| 89. |
*/*_Voids ratio of a soil mass can? |
| A. | never be greater than unity |
| B. | be zero |
| C. | take any value greater than zero |
| D. | take values between 0 and 1 only |
| Answer» D. take values between 0 and 1 only | |
| 90. |
*/*_According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is? |
| A. | 0 < PI < 7 |
| B. | 7< 17<="" label=""> <> |
| C. | 17<27< label=""> <27<> |
| D. | PI>27 |
| Answer» C. 17<27< label=""> <27<> | |
| 91. |
*/*_Select the correct range of density index,1D? |
| A. | 1D > 0 |
| B. | ID > 0 |
| C. | 0 < 1D < 1 |
| D. | 0 ≤ 1D ≤ 1 |
| Answer» E. | |
| 92. |
%_Which of the following methods is more suitable for the determination of permeability of clayey soil ?_% |
| A. | constant head method |
| B. | falling head method |
| C. | horizontal permeability test |
| D. | none of the above |
| Answer» C. horizontal permeability test | |
| 93. |
%_Valid range for S, the degree of saturation of soil in percentage is_% |
| A. | S > 0 |
| B. | S < 0 |
| C. | 0 < S < 100 |
| D. | 0 ≤ S ≤ 100 |
| Answer» E. | |
| 94. |
%_If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are_% |
| A. | 1.0 and 0.0 |
| B. | 0.0 and 1.0 |
| C. | 0.5 and 1.0 |
| D. | 1.0 and 0.5 |
| Answer» D. 1.0 and 0.5 | |
| 95. |
%_At liquid limit, all soils possess_% |
| A. | same shear strength of small magnitude |
| B. | same shear strength of large magnitude |
| C. | different shear strengths of small magnitude |
| D. | different shear strengths of large magnitude |
| Answer» B. same shear strength of large magnitude | |
| 96. |
%_Direct measurement of permeability of the specimen at any stage of loading can be made_% |
| A. | only in fixed ring type consolido-meter |
| B. | only in floating ring type consolido-meter |
| C. | both (A) and (B) |
| D. | none of the above |
| Answer» B. only in floating ring type consolido-meter | |
| 97. |
%_The value of compression index for a remoulded sample whose liquid limit is 50% is_% |
| A. | 0.028 |
| B. | 0.28 |
| C. | 036 |
| D. | 0.036 |
| Answer» C. 036 | |
| 98. |
%_With the increase in the amount of compaction energy_% |
| A. | optimum water content increases but maximum dry density decreases |
| B. | optimum water content decreases but maximum dry density increases |
| C. | both optimum water content and maximum dry density increase |
| D. | both optimum water content and maximum dry density decrease[ES 93] |
| Answer» C. both optimum water content and maximum dry density increase | |
| 99. |
%_Select the incorrect statement. Effective angle of shearing resistance_% |
| A. | increases as the size of particles increases |
| B. | increases as the soil gradation im-proves |
| C. | is limited to a maximum value of 45° |
| D. | is rarely more than 30° for fine grained soil |
| Answer» D. is rarely more than 30¬¨‚àû for fine grained soil | |
| 100. |
_ Select the correct range of density index,1D$? |
| A. | 1D > 0 |
| B. | ID > 0 |
| C. | 0 < 1D < 1 |
| D. | 0 ≤ 1D ≤ 1 |
| Answer» E. | |