Soil Mechanics Online Test – Paper 3

1. Overturning moment due to the pressure of the soil is 10 KN-m while the resisting moment is 5 KN-m. Find the factor of safety:

2. In a flow net, which of the following statements is true?

3. Which is the correct definition of soil in the geotechnical engineer's point of view?

4. The shear strength of a soil is

5. Negative skin friction affects the load carrying capacity of the pile by:

6. The structure that derives its stability due to self-weight is:

7. The slope of the flow curve obtained in the liquid limit test is called

8. The ratio of plasticity index to flow index is called

9. The water content at which the soil changes from a liquid state to a plastic state is known as

10. The change of moisture content of soils changes

11. The percentage of the porosity of loose sand is in the range of

12. The relation between dry density (yd), bulk density (y), and water content (w) is

13. The phreatic line is

14. If the failure of a finite slope occurs through the toe, it is known as:

15. The minimum number of piles needed to support a wall is:

16. The bearing capacity of a soil depends upon:

17. Base failure refers to a failure surface that:

18. Toe failure is most likely in the case of:

19. If the resultant force at the bottom of the retaining wall lies outside the middle third, the failure will be due to:

20. Allowable bearing pressure for a foundation depends on:

21. The factor of safety of embankments shall be:

22. An agent responsible for the transportation of soil is

23. The angle between the maximum shear stress plane and the horizontal plane is equal to

24. * A 'shear stress' is a stress which is applied.......to a face of material.

25. The top flow line in the case of seepage flow through an earthen dam has the shape of

26. Stability of slopes can be increased by:

27. Electrical analogy method is used to

28. The value of net allowable bearing pressure is:

29. The types of compaction suitable in a congested area for cohesive as well as cohesionless soil are

30. The force exerted by flowing water on the sediment particles to cause their motion is called:

31. Bearing capacity of soil is determined by:

32. Westergaard's theory is more appropriate for

33. The types of soil, which contain particles of almost the same size

34. The rate of consolidation

35. The wall constructed to resist horizontal pressure is:

36. A decrease in water content results in a reduction of the volume of a soil in

37. The neutral stress in a soil mass is

38. Weathering of soils is caused by

39. The critical exit gradient of the seepage of water in a soil is

40. The types of compaction suitable for cohesionless soil having large thickness are

41. A grillage foundation is used under:

42. The ratio of the unit weight of soil solids to that of water is called:

43. Active earth pressure is

44. The critical exit gradient of the seepage of water in soils

45. Raising of water table in shallow foundations, near foundation level:

46. The assumption of Rankine's theory of earth pressure is:

47. Hygroscopic water can be removed by

48. Physical weathering occurs due to

49. An isobar is a line which connects the points of equal stress

50. The maximum size of a clay particle is