MCQOPTIONS
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MCQOPTIONS
This section includes 204 Mcqs, each offering curated multiple-choice questions to sharpen your Soil Mechanics and Foundations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The time factor for a clay layer is |
| A. | a dimensionless parameter |
| B. | directly proportional to permeability |
| C. | directly proportional to drainage path |
| D. | none of these |
| Answer» C. directly proportional to drainage path | |
| 2. |
A soil having uniformity co-efficient more than 10, is called |
| A. | uniform soil |
| B. | poor soil |
| C. | well graded soil |
| D. | coarse soil |
| Answer» D. coarse soil | |
| 3. |
The void ratio of a soil is defined as the ratio of the |
| A. | weight of water to the weight of solids |
| B. | volume of water to the volume of voids in the soil mass |
| C. | total volume of voids to the volume of soil solids |
| D. | total volume of voids to the total volume of soil |
| Answer» D. total volume of voids to the total volume of soil | |
| 4. |
The shrinkage index is equal to |
| A. | liquid limit + plastic limit |
| B. | plastic limit - liquid limit |
| C. | liquid limit - shrinkage limit |
| D. | shrinkage limit - liuid limit |
| Answer» D. shrinkage limit - liuid limit | |
| 5. |
The direction of seepage is always |
| A. | parallel |
| B. | perpendicular |
| Answer» C. | |
| 6. |
The rate of consolidation |
| A. | increases |
| B. | decreases |
| C. | does not change |
| Answer» B. decreases | |
| 7. |
The value of permeability |
| A. | depends upon |
| B. | does not depend upon |
| Answer» B. does not depend upon | |
| 8. |
The void ratio for saturated soil is equal to the |
| A. | sum |
| B. | difference |
| C. | product |
| D. | ratio |
| Answer» D. ratio | |
| 9. |
Which of the following is highly permeable? |
| A. | Gravel |
| B. | Sand mixture |
| C. | Coarse sand |
| D. | Clay |
| Answer» B. Sand mixture | |
| 10. |
The coefficient of earth pressure at rest for loose sand is |
| A. | more than |
| B. | less than |
| C. | same as |
| Answer» C. same as | |
| 11. |
The consistency index is also known as relative consistency. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The frictional resistance offered by sand is |
| A. | sliding friction |
| B. | rolling friction |
| C. | resistance due to interlocking |
| D. | all of these |
| Answer» E. | |
| 13. |
Silt is a |
| A. | material deposited by a glacier |
| B. | soil composed of two different soils |
| C. | fine grained soil with little or no plasticity |
| D. | clay with a high percentage of the clay mineral |
| Answer» D. clay with a high percentage of the clay mineral | |
| 14. |
If the soil below the base of the footing is dry or moist, the confining pressure is approximately |
| A. | equal to |
| B. | double |
| C. | three times |
| D. | four times |
| Answer» C. three times | |
| 15. |
Black cotton soil |
| A. | is inorganic in nature |
| B. | contains large percentage of clay mineral |
| C. | exhibits high compressibility |
| D. | all of these |
| Answer» E. | |
| 16. |
The earth pressure at rest is proportional to ? / 1 - ?, where ? = Poisson's ratio of the soil. |
| A. | Right |
| B. | Wrong |
| Answer» B. Wrong | |
| 17. |
The ratio of the liquid limit minus the natural content of a soil to its plasticity index, is known as |
| A. | toughness index |
| B. | liquidity index |
| C. | flow index |
| D. | relative consistency |
| Answer» E. | |
| 18. |
For engineering purposes, soil is defined as |
| A. | the loose mantle at the surface of the earth which favours the growth of plant |
| B. | a natural aggregate of mineral grains, loose or moderately cohesive, inorganic or organic in nature |
| C. | a disintegrated rock |
| D. | all of the above |
| Answer» C. a disintegrated rock | |
| 19. |
According to Indian standards, the dispersing solution used in pipette method, for the determination of size of particle consists of |
| A. | 7 g sodium carbonate, 43 g sodium hexameta-phosphate and 1 litre distilled water |
| B. | 7 g sodium carbonate, 33 g sodium hexameta-phosphate and 1 litre distilled water |
| C. | 7 g sodium carbonate, 23 g sodium hexameta-phosphate and 1 litre distilled water |
| D. | any one of the above |
| Answer» C. 7 g sodium carbonate, 23 g sodium hexameta-phosphate and 1 litre distilled water | |
| 20. |
By an agriculturist, soil is defined as |
| A. | the loose mantle at the surface of the earth which favours the growth of plant |
| B. | a natural aggregate of mineral grains, loose or moderately cohesive, inorganic or organic in nature |
| C. | a disintegrated rock |
| D. | none of the above |
| Answer» B. a natural aggregate of mineral grains, loose or moderately cohesive, inorganic or organic in nature | |
| 21. |
The moisture contents of a clayey soil is gradually decreased from a large value. The correct sequence of the occurrence of the limits will be |
| A. | liquid limit, plastic limit and shrinkage limit |
| B. | plastic limit, liquid limit and shrinkage limit |
| C. | shrinkage limit, plastic limit and liquid limit |
| D. | plastic limit, shrinkage limit and liquid limit |
| Answer» B. plastic limit, liquid limit and shrinkage limit | |
| 22. |
The ratio of settlement at any time (t) to the final settlement is known as |
| A. | compression index |
| B. | coefficient of consolidation |
| C. | degree of consolidation |
| D. | none of these |
| Answer» D. none of these | |
| 23. |
The density of sand at which there is no change in volume under the influence of shearing strain produced due to shear stress, is called |
| A. | relative density |
| B. | apparent density |
| C. | critical density |
| D. | any one of these |
| Answer» D. any one of these | |
| 24. |
The suantity of seepage of water in a soil medium is |
| A. | directly proportional to the head of water at upstream |
| B. | inversely proportional to the head of water at upstream |
| C. | directly proportional to the coefficient of permeability |
| D. | inversely proportional to the coefficient of permeability |
| Answer» D. inversely proportional to the coefficient of permeability | |
| 25. |
The useful method of finding the shear strength of very plastic cohesive soils is by means of |
| A. | cone test |
| B. | penetration test |
| C. | vane shear test |
| D. | torsional shear test |
| Answer» D. torsional shear test | |
| 26. |
The coefficient of consolidation is measured in |
| A. | cm2/g |
| B. | cm2/s |
| C. | g / cm2 / s |
| D. | cm2 / g / s |
| Answer» C. g / cm2 / s | |
| 27. |
Toughness index is the ratio of |
| A. | flow index and plasticity index |
| B. | plasticity index and flow index |
| C. | liquidity index and flow index |
| D. | flow index and liquidity index |
| Answer» C. liquidity index and flow index | |
| 28. |
The coefficient of permeability of slit is |
| A. | same as |
| B. | less than |
| C. | more than |
| Answer» C. more than | |
| 29. |
According to I.S. code, the total settlement of isolated footings for cohesive soil should be |
| A. | 30mm |
| B. | 40mm |
| C. | 500mm |
| D. | 65mm |
| Answer» C. 500mm | |
| 30. |
In case of coarse grained sand having high permeability and low plasticity, 95% of consolidation occurs within |
| A. | 1 minute |
| B. | 30 minutes |
| C. | 1 hour |
| D. | 2 hours |
| Answer» B. 30 minutes | |
| 31. |
A flow net is used to determine the |
| A. | seepage flow |
| B. | seepage pressure |
| C. | exit gradient |
| D. | all of these |
| Answer» E. | |
| 32. |
The neutral stress on the soil is due to the |
| A. | external load acting on the soil |
| B. | weight of the soil particles |
| C. | weight of water present in soil pores |
| D. | both (a) and (b) |
| Answer» D. both (a) and (b) | |
| 33. |
A fine grained soil |
| A. | has low permeability |
| B. | has high compressibility |
| C. | may or may not be plastic |
| D. | all of these |
| Answer» E. | |
| 34. |
Soils are derived from |
| A. | igneous rocks |
| B. | sedimentary rocks |
| C. | metamorphic rocks |
| D. | any one of these |
| Answer» E. | |
| 35. |
Stoke's law is used to determine the |
| A. | specific gravity of soil solids |
| B. | density of soil suspension |
| C. | grain size distribution of those soils whose grain size is finer than 0.075 mm |
| D. | all of the above |
| Answer» D. all of the above | |
| 36. |
According to Stoke's law, the velocity at which grains settle out of suspension, all other factors being equal, is dependent upon |
| A. | shape of the grain |
| B. | weight of the grain |
| C. | size of the grain |
| D. | all of these |
| Answer» E. | |
| 37. |
The expansion of soil due to shear at a constant value of pressure is called |
| A. | apparent cohesion |
| B. | true cohesion |
| C. | dilatancy |
| D. | consistency |
| Answer» D. consistency | |
| 38. |
The term Soil Mechanics was coined by Dr. Karl Tarzaghi. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 39. |
The coefficient of volume compressibility |
| A. | increases |
| B. | decreases |
| C. | does not change |
| Answer» C. does not change | |
| 40. |
Which of the following soil is transported by wind? |
| A. | Talus |
| B. | Loess |
| C. | Drift |
| Answer» C. Drift | |
| 41. |
The ratio of the volume of air voids to the volume of voids, is called |
| A. | void ratio |
| B. | air content |
| C. | degree of saturation |
| D. | porosity |
| Answer» C. degree of saturation | |
| 42. |
Sieve analysis is done if all particles to not pass through square opening of 0.075 mm. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 43. |
Gravel and sand is a |
| A. | cohesive coarse grained soil |
| B. | cohesive fine grained soil |
| C. | non-cohesive coarse grained soil |
| D. | non-cohesive fine grained soil |
| Answer» D. non-cohesive fine grained soil | |
| 44. |
When the soil particles are less than 0.002 mm, the force of gravity on each particle is |
| A. | less |
| B. | more |
| C. | negligible |
| Answer» D. | |
| 45. |
According to a geologist, soil is defined as a disintegrated rock. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 46. |
The coefficient of earth pressure at rest for sand compacted in layers is about the same as for stiff clay. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 47. |
Which of the following is practically impermeable? |
| A. | Gravel |
| B. | Sand mixture |
| C. | Coarse sand |
| D. | Clay |
| Answer» E. | |
| 48. |
The property of a soil which is of great importance in finding settlement of structures, is |
| A. | permeability |
| B. | sher strength |
| C. | consolidation |
| D. | compressibility |
| Answer» D. compressibility | |
| 49. |
The seepage pressure always acts in the direction of flow. |
| A. | Right |
| B. | Wrong |
| Answer» B. Wrong | |
| 50. |
Which one of the following parameters can be used to estimate the angle of friction of a sandy soil? |
| A. | Particle size |
| B. | Roughness of particle |
| C. | Density index |
| D. | Particle size distribution |
| Answer» D. Particle size distribution | |