MCQOPTIONS
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MCQOPTIONS
This section includes 372 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If voids ratio is 0.67, water content is 0.188 and specific gravity is 2.68, the degree of saturation of the soil, is |
| A. | 25% |
| B. | 40% |
| C. | 60% |
| D. | 75% |
| Answer» E. | |
| 2. |
The specific yield of soil depends upon |
| A. | compaction of stratum |
| B. | distribution of pores |
| C. | shape and size of particles |
| D. | all the above. |
| Answer» E. | |
| 3. |
The factor which affects the compaction, is |
| A. | moisture content |
| B. | compacting content |
| C. | method of compaction |
| D. | All the above. |
| Answer» E. | |
| 4. |
If the cohesive force, (c), is 1.5 t/m², the density (γ) of the soil is 2.0 t/m³, factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of the §lope, is |
| A. | 5 metres |
| B. | 8 metres |
| C. | 10 metres |
| D. | 12 metres |
| Answer» D. 12 metres | |
| 5. |
The equation τ = C + σ tan φ is given by |
| A. | Rankine |
| B. | Coulomb |
| C. | Culaman |
| D. | Mohr. |
| Answer» C. Culaman | |
| 6. |
Pick up the correct statement applicable to plate load test |
| A. | Width of the test pit for plate load test is made five times the width of the plate |
| B. | At the centre of the test pit, a hole is dug out whose size is kept equal to the size of the test plate |
| C. | Bottom level of the hole dug at the centre of the test pit, is kept at the level of the actual formation |
| D. | All the above. |
| Answer» E. | |
| 7. |
Negative skin friction on piles |
| A. | is caused due to relative settlement of the soil |
| B. | is caused in soft clays |
| C. | decreases the pile capacity |
| D. | all of the above. |
| Answer» E. | |
| 8. |
Which one of the following statements is true for Mohr-Coulomb envelope ? |
| A. | Coulomb suggests that the relationship between shear strength and normal stress, is adequately represented by the straight line |
| B. | The generalised Mohr theory suggests that, though the shear stress depends on the normal stress, the relation is not linear |
| C. | Coulomb and Mohr suggest that a definite relationship exists among the principal stress and the angle of internal friction |
| D. | All the above. |
| Answer» E. | |
| 9. |
The ratio of the undrained strength in the undrained state to the undrained strength, at the same water content, in the remoulded state, is called the sensivity of the clay. Its value for quick clays is |
| A. | 4 |
| B. | 8 |
| C. | 12 |
| D. | 20 |
| Answer» E. | |
| 10. |
The ultimate bearing capacity of a soil, is |
| A. | total load on the bearing area |
| B. | safe load on the bearing area |
| C. | load at which soil fails |
| D. | load at which soil consolidates. |
| Answer» D. load at which soil consolidates. | |
| 11. |
Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is |
| A. | 50% |
| B. | 60% |
| C. | 75% |
| D. | 80% |
| Answer» D. 80% | |
| 12. |
The intensity of active earth pressure at a depth of 10 metres in dry cohesionless sand with an angle of internal friction of 30° and with a weight of 1.8 t/m³, is |
| A. | 4 t/m² |
| B. | 5 t/m² |
| C. | 6 t/m² |
| D. | 7 t/m² |
| Answer» D. 7 t/m² | |
| 13. |
Pick up the incorrect definition from the following: |
| A. | Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample |
| B. | The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil |
| C. | The water content at which a soil changes from the liquid state to solid state, is known liquid limit of the soil |
| D. | The water content at which a soil flows, is known plastic limit of the soil |
| Answer» E. | |
| 14. |
Soils containing organic matters |
| A. | are of spongy nature |
| B. | swell with decrease of moisture |
| C. | shrink with increase of moisture content |
| D. | none of these. |
| Answer» B. swell with decrease of moisture | |
| 15. |
For a clay slope of height of 10 m, the stability number is 0.05, γ = 2.0 t/m³, C = 2.5 t/m², the critical height of the slope of the soil, is |
| A. | 4.0 m |
| B. | 12.5 m |
| C. | 25.0 m |
| D. | 15.0 m |
| Answer» D. 15.0 m | |
| 16. |
Maximum size of clay particles, is : |
| A. | 0.002 mm |
| B. | 0.04 mm |
| C. | 0.06 mm |
| D. | 0.08 mm |
| Answer» B. 0.04 mm | |
| 17. |
Transporting and redepositing soils, is done by |
| A. | water |
| B. | glacier |
| C. | gravity |
| D. | all the above. |
| Answer» E. | |
| 18. |
The ratio of emax and emin of silty sand, is |
| A. | 2.0 |
| B. | 5 |
| C. | 3.0 |
| D. | 3.5 |
| Answer» D. 3.5 | |
| 19. |
The coefficient of curvature for a well graded soil, must be between |
| A. | 0.5 to 1.0 |
| B. | 1.0 to 3.0 |
| C. | 3.0 to 4.0 |
| D. | 4.0 to 5.0 |
| Answer» C. 3.0 to 4.0 | |
| 20. |
If the back fill is having a uniform surcharge of intensity q per unit area, the lateral pressure will be |
| A. | q times the lateral pressure within the surface |
| B. | 1/q times the lateral pressure within the surface |
| C. | equal to a fill of height Z equal to q/r, where r is the density of the backfill |
| D. | none of these. |
| Answer» D. none of these. | |
| 21. |
Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than |
| A. | 60°C |
| B. | 80°C |
| C. | 100°C |
| D. | 110°C |
| Answer» C. 100°C | |
| 22. |
The critical exist gradient of seepage water in soils, increases with |
| A. | an increase in specific gravity |
| B. | a decrease in specific gravity |
| C. | a decrease in void ratio |
| D. | both (a) and (c) |
| Answer» E. | |
| 23. |
On wetting, cohesive soils, |
| A. | loose permeability |
| B. | gain shear strength |
| C. | loose elasticity |
| D. | decrease their shear strength. |
| Answer» E. | |
| 24. |
The triaxial apparatus is usually used for |
| A. | unconsolidated-undrained test |
| B. | consolidated-undrained test |
| C. | drained test |
| D. | all the above tests. |
| Answer» E. | |
| 25. |
The angle of internal friction of clays, is usually |
| A. | 0° to 5° |
| B. | 5° to 20° |
| C. | 20° to 30° |
| D. | 30° to 45° |
| Answer» C. 20° to 30° | |
| 26. |
Sedimentation analysis is based on the assumption: |
| A. | soil particles are spherical |
| B. | particles settle independent of other particles |
| C. | walls of the jar do not affect the settlement . |
| D. | all the above. |
| Answer» E. | |
| 27. |
The ratio of the volume of water present in a given soil mass to the total volume of its voids, is known |
| A. | porosity |
| B. | void ratio |
| C. | percentage voids |
| D. | degree of saturation. |
| Answer» E. | |
| 28. |
If σ0' and σ' represent initial and increased pressure ; e0 and e void ratios corresponding to initial and increased pressure ; and C0 the compression index (dimensionless), then, the virgin compression curve as expressed by Terzaghi empirical formula is |
| A. | e = e0 + Cc log10 σ'/σ0' |
| B. | e = e0 - Cc log10 σ'/σ0' |
| C. | e0 = e - Cc log10 σ'/σ0' |
| D. | e0 = e + Cc log10 σ0'/σ' |
| Answer» C. e0 = e - Cc log10 σ'/σ0' | |
| 29. |
The zero atmospheric pressure is at |
| A. | sea level |
| B. | mean sea level |
| C. | water table |
| D. | both (c) and (d) of the above. |
| Answer» E. | |
| 30. |
You are given a sample of soil containing coarse grains to determine its water content, you will use |
| A. | pycnometer |
| B. | oven-drying method |
| C. | calcium carbide method |
| D. | alcohol method. |
| Answer» B. oven-drying method | |
| 31. |
The critical exist gradient of seepage water in soils, is |
| A. | directly proportional to the voids ratio |
| B. | inversely proportional to the specific gravity |
| C. | directly proportional to the specific gravity |
| D. | none of these. |
| Answer» E. | |
| 32. |
Flow net is used for the determination of |
| A. | quantity of seepage |
| B. | hydrostatic pressure |
| C. | seepage pressure |
| D. | all the above. |
| Answer» E. | |
| 33. |
The angle of internal friction, is least for |
| A. | angular-grained loose sand |
| B. | angular -grained dense sand |
| C. | round-grained loose sand |
| D. | clays. |
| Answer» E. | |
| 34. |
The Westergaard analysis is used for |
| A. | sandy soils |
| B. | cohesive soils |
| C. | stratified soils |
| D. | clayey soils. |
| Answer» D. clayey soils. | |
| 35. |
The compression index of a soil |
| A. | decreases with an increase in the liquid limit |
| B. | increases with an increase in the liquid limit |
| C. | decreases with an increase in the plastic limit |
| D. | is not related with plastic limit. |
| Answer» C. decreases with an increase in the plastic limit | |
| 36. |
Geologic cycle for the formation of soil, is |
| A. | Upheavel → transportation → deposition → weathering |
| B. | Weathering → upheaval → transportation → deposition |
| C. | Transportation → upheaval → weathering → deposition |
| D. | Weathering → transportation → deposition → upheaval |
| Answer» E. | |
| 37. |
A moist soil sample weighing 108 g has a volume of 60 cc. If water content is 25% and value of G = 2.52, the void ratio is |
| A. | 0.55 |
| B. | 0.65 |
| C. | 0.75 |
| D. | 0.80 |
| Answer» D. 0.80 | |
| 38. |
The shear strength in plastic undrained clay, is due to |
| A. | inter-granular friction |
| B. | internal friction |
| C. | cohesion |
| D. | none of these. |
| Answer» D. none of these. | |
| 39. |
The shear resistance of a soil is con-tituted basically of the following component. |
| A. | The frictional resistance to translocation between the individual soil particles at their contact point |
| B. | To the structural relation to displacement of the soil because of the interlocking of the particles |
| C. | Cohesion and adhesion between the surfaces of the soil particles |
| D. | All the above. |
| Answer» E. | |
| 40. |
A plane inclined at an angle φ to the horizontal at which the soil is expected to stay in the absence of any lateral support, is known as |
| A. | natural slope line |
| B. | repose line |
| C. | the φ line |
| D. | all the above. |
| Answer» E. | |
| 41. |
A failure wedge develops if a retaining wall |
| A. | moves away from the backfill |
| B. | moves towards the backfill |
| C. | sinks downwards |
| D. | stresses equally by vertical and horizontal forces. |
| Answer» B. moves towards the backfill | |
| 42. |
Chemical weathering of soil is caused due to |
| A. | oxidation |
| B. | carbonation |
| C. | hydration |
| D. | all the above. |
| Answer» E. | |
| 43. |
A clay subjected to pressure in excess to its present over-burden, is said to be |
| A. | pre-compressed |
| B. | pre-consolidated |
| C. | over-consolidated |
| D. | all the above. |
| Answer» E. | |
| 44. |
The passive earth pressure of a soil, is proportional to (where φ is the angle of internal friction of the soil.) |
| A. | tan (45° - φ) |
| B. | tan (45° + φ) |
| C. | tan² (45° - φ |
| D. | tan² (45° + φ) |
| Answer» E. | |
| 45. |
'Loess' is silty clay formed by the action of |
| A. | water |
| B. | glacier |
| C. | wind |
| D. | gravitational force. |
| Answer» D. gravitational force. | |
| 46. |
The method of the slices is applicable to |
| A. | homogenous soils |
| B. | stratified soils |
| C. | saturated soils |
| D. | non-uniform slopes |
| Answer» B. stratified soils | |
| 47. |
A soil mass coated with a thin layer of paraffin weighs 460 g. When immersed, it displaces 299 cc of water. The weight of paraffin is 10 g. If specific gravity of solids is 2.5 and that of paraffin 0.9, the void ratio of soil, is |
| A. | 0.55 |
| B. | 0.60 |
| C. | 0.65 |
| D. | 0.70 |
| Answer» C. 0.65 | |
| 48. |
Water formed transported soil is |
| A. | alluvial |
| B. | marine |
| C. | lacustrine |
| D. | loess. |
| Answer» B. marine | |
| 49. |
According to Coulomb's wedge theory, the active earth pressure slides the wedge |
| A. | down and outwards on a slip surface |
| B. | up and inwards on a slip surface |
| C. | horizontal upward and parallel to base |
| D. | horizontal inward and parallel to base. |
| Answer» B. up and inwards on a slip surface | |
| 50. |
The capillary rise of water |
| A. | depends upon the force responsible |
| B. | increases as the size of the soil particles increases |
| C. | decreases as the size of the soil particles decreases |
| D. | is less in wet soil than in dry soil. |
| Answer» B. increases as the size of the soil particles increases | |