MCQOPTIONS
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MCQOPTIONS
This section includes 55 Mcqs, each offering curated multiple-choice questions to sharpen your Geotechnical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The velocity of flow towards cathode in electro-osmosis method is given by _________ |
| A. | vₑ=kₑ+iₑ |
| B. | vₑ=kₑ/iₑ |
| C. | vₑ=kₑ-iₑ |
| D. | vₑ=kₑ+iₑ |
| Answer» D. vₑ=kₑ+iₑ | |
| 2. |
The fine grained cohesive soils can be stabilised by ______ |
| A. | well point system |
| B. | ditches and sumps |
| C. | vacuum method |
| D. | electro-osmosis method |
| Answer» E. | |
| 3. |
The seepage analysis is done on the assumption of ____________ |
| A. | Flow is laminar and Darcy’s law is valid |
| B. | Seepage of water |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Seepage of water | |
| 4. |
To find pre-consolidation pressure, __________ relationship in graph is plotted. |
| A. | voids ratio and effective pressure |
| B. | effective pressure and total pressure |
| C. | effective pressure and pore pressure |
| D. | total pressure and total pressure |
| Answer» B. effective pressure and total pressure | |
| 5. |
Which one of the following method can be used to lower water table, using gravity flow? |
| A. | Well point system |
| B. | Dewatering |
| C. | Water suction method |
| D. | Dehydration |
| Answer» B. Dewatering | |
| 6. |
The suction head ____________ capillary head in vacuum method of dewatering. |
| A. | should be greater than |
| B. | should be less than |
| C. | should be equal to |
| D. | does not depend on |
| Answer» B. should be less than | |
| 7. |
A soil that is not fully consolidated is called ___________ |
| A. | normally consolidated |
| B. | pre-consolidated |
| C. | over- consolidated |
| D. | under-consolidated |
| Answer» E. | |
| 8. |
The diameter of the perforated pipe used in well point system is __________ |
| A. | 0.5 to 1 m |
| B. | 5 to 8 cm |
| C. | 2 to 4 cm |
| D. | 1 to 3.5 m |
| Answer» C. 2 to 4 cm | |
| 9. |
In vacuum method, the vacuum drawn on the well-point stiffened the sub-soil to carry out excavations. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 10. |
A advantage of using jetting of water in well point system is ___________ |
| A. | Forms a natural filter around well point |
| B. | Allows to penetrate soil easily |
| C. | Less time is consumed for drilling |
| D. | All of the mentioned |
| Answer» B. Allows to penetrate soil easily | |
| 11. |
The ground water table may be lowered by which of the following methods? |
| A. | Vacuum method |
| B. | Well point system |
| C. | Electro-osmosis method |
| D. | All of the mentioned |
| Answer» E. | |
| 12. |
In discharge equation given by chapmen qp=kba(H-ho)/L+EA, EA refers to __________ |
| A. | Coefficient of permeability |
| B. | Electric gradient |
| C. | Extra length factor |
| D. | Efficiency of permeability of soil |
| Answer» D. Efficiency of permeability of soil | |
| 13. |
In well point system, ___________should be made essential for proper working of the system. |
| A. | Suction pump |
| B. | Pumping schedule |
| C. | Man power |
| D. | None of the mentioned |
| Answer» B. Pumping schedule | |
| 14. |
The pump which is used for suction of water in the well point system is ___________ |
| A. | Suction pump |
| B. | Auxiliary pump |
| C. | Vacuum pump |
| D. | All of the mentioned |
| Answer» C. Vacuum pump | |
| 15. |
The drawdown curve in fully penetrated slot is based on the assumptions of _____________ |
| A. | Dupuit and Forchheimer |
| B. | Darcy |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Darcy | |
| 16. |
In case of normally consolidated and pre-consolidated soils, it is not fully consolidated under existing over-burden pressure. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 17. |
The soil to be protected by protective filter is known as __________ |
| A. | Pervious materials |
| B. | Protective materials |
| C. | Base material |
| D. | Porous materials |
| Answer» D. Porous materials | |
| 18. |
A protective filter can also be called as __________ |
| A. | Reverse filter and Inverted filter |
| B. | Horizontal filter |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Horizontal filter | |
| 19. |
A protective filter consists of layers of _____________ |
| A. | Base material |
| B. | Pervious material |
| C. | Filter material |
| D. | Sheet-pile |
| Answer» C. Filter material | |
| 20. |
The grain size curve of the filter should be parallel to that of ____________ |
| A. | Base materials |
| B. | Filter |
| C. | Seepage discharge |
| D. | All of the mentioned |
| Answer» B. Filter | |
| 21. |
According to Terzaghi, the D15 size material must be more than the size of __________ |
| A. | D40 |
| B. | D85 |
| C. | D20 |
| D. | D10 |
| Answer» C. D20 | |
| 22. |
The filter material should be ___________ enough to prevent buildup of seepage forces within the filter. |
| A. | Coarse and Pervious |
| B. | Finer |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Finer | |
| 23. |
The application of electro-osmosis on dewatering of soil was developed by ___________ |
| A. | L. casagrande |
| B. | Darcy |
| C. | Chapmen |
| D. | Dupuit |
| Answer» B. Darcy | |
| 24. |
For fine-grained soil what type of dewatering system can be used? |
| A. | Electro-osmosis method |
| B. | Shallow well system |
| C. | Deep well system |
| D. | Vacuum method |
| Answer» E. | |
| 25. |
What is the minimum depth of water that can be brought to the surface in well point system? |
| A. | 5m |
| B. | 2m |
| C. | 6m |
| D. | 1m |
| Answer» D. 1m | |
| 26. |
What type of filter is provided at the bottom of drainage sumps and trenches? |
| A. | Drainage filter |
| B. | Reverse filter |
| C. | Weighting filter |
| D. | Horizontal filter |
| Answer» D. Horizontal filter | |
| 27. |
A complete design of dewatering system consist of ___________ |
| A. | Spacing of wells |
| B. | Penetration of wells |
| C. | Pumping capacities |
| D. | All of the mentioned |
| Answer» E. | |
| 28. |
In determination of pre-consolidation pressure, ___________ point of virgin curve is selected. |
| A. | maximum curvature |
| B. | maximum radius |
| C. | minimum curvature |
| D. | initial point |
| Answer» B. maximum radius | |
| 29. |
For unconfined flow, which of the following discharge slot is used? |
| A. | Partially penetrating slot |
| B. | Fully penetrating slot |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» C. None of the mentioned | |
| 30. |
In finding pre-consolidation pressure, the lower portion of the curve is ________________ |
| A. | parabolic curve |
| B. | swelling curve |
| C. | expansion curve |
| D. | straight line |
| Answer» E. | |
| 31. |
In vacuum method, the ground surface is subjected to unbalanced atmospheric pressure. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 32. |
When dewatering system consist of number of well-points ___________ can be considered for a simplified solution. |
| A. | Linear drainage limit |
| B. | Seepage analysis |
| C. | Flow of water |
| D. | All of the mentioned |
| Answer» B. Seepage analysis | |
| 33. |
To find pre-consolidation pressure, __________ sample is used. |
| A. | undisturbed clay |
| B. | disturbed clay |
| C. | gravel |
| D. | sand gravel |
| Answer» B. disturbed clay | |
| 34. |
___________ soil has never been subjected to an effective pressure greater than existing over-burden pressure and has completely consolidated. |
| A. | normally consolidated |
| B. | pre-consolidated |
| C. | under- consolidated |
| D. | pre- compressed |
| Answer» B. pre-consolidated | |
| 35. |
For the use of vacuum method, the coefficient of permeability should be __________ |
| A. | greater than 10¯³cm/s |
| B. | in the range 10¯³ to 10¯⁵cm/s |
| C. | less than 10¯⁵cm/s |
| D. | independent |
| Answer» C. less than 10¯⁵cm/s | |
| 36. |
Who founded the method of determination of pre-consolidation pressure? |
| A. | Casagrande |
| B. | Appuswamy |
| C. | Falcon India |
| D. | Darcy |
| Answer» B. Appuswamy | |
| 37. |
To find pre-consolidation pressure, __________ graph is used. |
| A. | hexagonal paper |
| B. | semi-log graph |
| C. | log-log graph |
| D. | normal probability paper |
| Answer» C. log-log graph | |
| 38. |
In vacuum method, the top of bore hole is sealed by __________ |
| A. | soil cement |
| B. | bentonite |
| C. | clay |
| D. | soil cement, bentonite and clay |
| Answer» E. | |
| 39. |
The electro-osmosis method of dewatering increases ______ |
| A. | consolidation |
| B. | shear strength |
| C. | both consolidation and shear strength |
| D. | water at anode |
| Answer» D. water at anode | |
| 40. |
The dewatering of soil by electro-osmosis was developed by ______ |
| A. | Darcy |
| B. | Khosla |
| C. | Poiseuille |
| D. | Casagrande |
| Answer» E. | |
| 41. |
For dewatering more than 6m below the water table, which of the following method is used? |
| A. | Well point system |
| B. | Multi stage well point system |
| C. | Vacuum method |
| D. | Deep well system |
| Answer» C. Vacuum method | |
| 42. |
Discharge for a unconfined aquifer can be found from the expression developed by __________ |
| A. | Dupuit |
| B. | Darcy |
| C. | Chapman |
| D. | Baron |
| Answer» D. Baron | |
| 43. |
The phreatic line of an earth dam can be kept within the body of the dam by ___________ |
| A. | Proper drainage filter |
| B. | Providing protective filter |
| C. | Increasing soil porosity |
| D. | Increasing surface area |
| Answer» C. Increasing soil porosity | |
| 44. |
The requirements to be satisfied by a filter material were devised by which of the following organization? |
| A. | U.S.B.R. Earth manual |
| B. | Indian standard classification |
| C. | PRA system |
| D. | M.I.T system |
| Answer» B. Indian standard classification | |
| 45. |
For successful dewatering in fine, non-cohesive soils, _________ method is used. |
| A. | ditches and sumps |
| B. | electro-osmosis method |
| C. | well point system |
| D. | vacuum method |
| Answer» E. | |
| 46. |
In electro-osmosis method, when direct current is applied to the electrodes, the soil water will _________ |
| A. | travel from positive electrode to negative electrode |
| B. | travel from negative electrode to positive electrode |
| C. | move towards the centre between the electrodes |
| D. | not be affected by the current |
| Answer» B. travel from negative electrode to positive electrode | |
| 47. |
Fine grained cohesive soil can be drained or stabilized by __________ |
| A. | Vacuum method |
| B. | Electro-osmosis method |
| C. | Shallow well system |
| D. | Well point system |
| Answer» C. Shallow well system | |
| 48. |
For the use of vacuum method, the D₁₀ should be __________ |
| A. | 1mm |
| B. | more than 1mm |
| C. | more than 0.5mm |
| D. | less than 0.05mm |
| Answer» E. | |
| 49. |
The removal of excess of water from the saturated soil mass is called __________ |
| A. | Drainage and Dewatering |
| B. | Saturation |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Saturation | |
| 50. |
A protective filter is designed to provide _____________ |
| A. | Soil erosion |
| B. | Quick drainage |
| C. | Water moisture |
| D. | All of the mentioned |
| Answer» C. Water moisture | |