MCQOPTIONS
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MCQOPTIONS
This section includes 83 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. |
Which of the following test are used in the laboratory, for compaction? |
| A. | Vibration test |
| B. | Standard proctor test and Jodhpur-mini compactor test |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» C. None of the mentioned | |
| 52. |
In Standard Proctor test, the capacity of the mould is ________ cu.ft. |
| A. | 1/10 |
| B. | 1/20 |
| C. | 1/30 |
| D. | 1/40 |
| Answer» D. 1/40 | |
| 53. |
The Modified Proctor test has its peak relatively towards ____________ in water content – dry density curve. |
| A. | right |
| B. | left |
| C. | centre |
| D. | near origin |
| Answer» C. centre | |
| 54. |
Which of the following rollers have wheels, mounted at slight angle with respect to axle? |
| A. | Sheep foot roller |
| B. | Smooth wheel roller |
| C. | Wobble wheel roller |
| D. | Tandem roller |
| Answer» D. Tandem roller | |
| 55. |
The theoretical maximum compaction for any given water content corresponds to ______ |
| A. | least specific gravity |
| B. | maximum specific gravity |
| C. | zero air void condition |
| D. | only air voids present without the presence of water |
| Answer» D. only air voids present without the presence of water | |
| 56. |
The initial percentage of water content taken for coarse-grained soil in proctor test is __________ |
| A. | 4 |
| B. | 10 |
| C. | 25 |
| D. | 50 |
| Answer» B. 10 | |
| 57. |
In Standard Proctor test, the free fall height is ________ inches. |
| A. | 5 |
| B. | 12 |
| C. | 16 |
| D. | 18 |
| Answer» C. 16 | |
| 58. |
The height of free fall in Abbot compaction test is _______ cm. |
| A. | 35 |
| B. | 31 |
| C. | 45.72 |
| D. | 43 |
| Answer» B. 31 | |
| 59. |
The void ratio is increased by compaction. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 60. |
The amount of compaction greatly affects ___________ |
| A. | Water content and Maximum dry density |
| B. | Saturation of soil |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Saturation of soil | |
| 61. |
In standard compactor test, soil is compacted into _____________ layers. |
| A. | 2 |
| B. | 4 |
| C. | 3 |
| D. | 5 |
| Answer» D. 5 | |
| 62. |
The Modified Proctor test curve of the water content – dry density curve lies __________ the SPT curve. |
| A. | above |
| B. | below |
| C. | left side |
| D. | right side |
| Answer» B. below | |
| 63. |
The structure of composite soil after compacted will be in the form of ______________ |
| A. | Coarse grained skeleton structure and Cohesive matrix structure |
| B. | Single grained structure |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Single grained structure | |
| 64. |
Jumping rammers that are used for compacting the soil is also known as ____________ |
| A. | Frog rammers |
| B. | Combustion rammers |
| C. | Pneumatic rammers |
| D. | None of the mentioned |
| Answer» B. Combustion rammers | |
| 65. |
The energy per volume for Light compaction test is ______________ |
| A. | 593 kJ/m³ |
| B. | 2944 kJ/m³ |
| C. | 2674 kJ/m³ |
| D. | kJ/m³ |
| Answer» B. 2944 kJ/m³ | |
| 66. |
In Standard Proctor test internal effective height is ________ inches. |
| A. | 2.3 |
| B. | 4.5 |
| C. | 4.6 |
| D. | 45 |
| Answer» D. 45 | |
| 67. |
Which of the following property of soil is improved by compacting the soil? |
| A. | Reduction of compressibility |
| B. | Water absorption |
| C. | Permeability |
| D. | All of the mentioned |
| Answer» E. | |
| 68. |
The standard proctor test was developed by ___________ |
| A. | Darcy |
| B. | Terzaghi |
| C. | Proctor |
| D. | Rendulic |
| Answer» D. Rendulic | |
| 69. |
For same soil, the effect of heavier compaction is in ________ |
| A. | increase in the maximum dry density |
| B. | decrease in the maximum dry density |
| C. | decrease in stability |
| D. | decrease in strength |
| Answer» B. decrease in the maximum dry density | |
| 70. |
In Jodhpur mini compaction test, a 2.5 kg DRT is used which falls freely from a height of ______ cm. |
| A. | 35 |
| B. | 31 |
| C. | 45.72 |
| D. | 25 |
| Answer» B. 31 | |
| 71. |
The compaction process can be accomplished by ___________ process. |
| A. | Rolling |
| B. | Tampering |
| C. | Vibration |
| D. | All of the mentioned |
| Answer» E. | |
| 72. |
The dry density decreases in cohesion less soil with an increase in water content due to which of the following reasons? |
| A. | Capillary rise |
| B. | Bulking of sand |
| C. | Degree of saturation |
| D. | Water content |
| Answer» C. Degree of saturation | |
| 73. |
The compaction energy used for standard proctor test is ___________ |
| A. | 595 kJ/m³ |
| B. | 300 kJ/m³ |
| C. | 6065 kJ/m³ |
| D. | 1000 kJ/m³ |
| Answer» B. 300 kJ/m³ | |
| 74. |
A cohesive soil yields a maximum dry density of 1.8 g/cc at an OMC of 16 % during a standard proctor test. What will be its degree of saturation? (Take G=2.65) |
| A. | 100 % |
| B. | 60.45 % |
| C. | 43.27 % |
| D. | 89.79 % |
| Answer» E. | |
| 75. |
The maximum density is reached in cohesion less soil when the soil is _________ |
| A. | Zero water content |
| B. | Partially saturated |
| C. | Fully saturated |
| D. | Maximum specific surface |
| Answer» D. Maximum specific surface | |
| 76. |
In Dietert test, the diameter of mould is _______ inches. |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» B. 4 | |
| 77. |
To test the compaction characteristics, the method are based on ______ |
| A. | dynamic loading only |
| B. | kneading only |
| C. | vibration loads only |
| D. | dynamic, static, kneading |
| Answer» E. | |
| 78. |
In Harvard miniature compaction test, the soil is compacted by _______ |
| A. | vibration |
| B. | kneading action |
| C. | impact |
| D. | dynamic |
| Answer» C. impact | |
| 79. |
Which of the following does not causes compaction? |
| A. | vibration |
| B. | tamping |
| C. | rolling |
| D. | adding excess water |
| Answer» E. | |
| 80. |
In 1933, ____________ showed the existence of relationship between soil water content and degree of dry density. |
| A. | Terzaghi |
| B. | Skempton |
| C. | Darcy |
| D. | Proctor |
| Answer» E. | |
| 81. |
At Optimum water content, soil has _____ |
| A. | minimum density |
| B. | maximum density |
| C. | no weight |
| D. | no density |
| Answer» C. no weight | |
| 82. |
Compaction decreases the porosity. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 83. |
Dry density of soil is increased by _________ |
| A. | compaction |
| B. | swelling |
| C. | bulking |
| D. | addition of excess of water |
| Answer» B. swelling | |