Home» Online Test » Civil Engineering » Soil Mechanics Online Test » Paper 1 » Paper 2 » Paper 3 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This is a FREE online test. Beware of scammers who ask for money to attend this test. Get fresh, new questions in each attempt. Total Questions: 50 Time Allotted: 50 minutes Passing Score: 70% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 50 1. Three-phase system is concerned with a) Partially saturated soil b) Saturated soil c) Dry soil d) All of the above 2 / 50 2. For the determination of shear strength in the laboratory, the tests done are a) Triaxial shear test b) Direct shear test c) All of the above d) Unconfined shear test 3 / 50 3. The lateral pressure exerted by a uniform surcharge of intensity q per unit area is: a) q times the lateral pressure within the surface b) q/γ, where γ is the density of backfill c) 1/q times the lateral pressure within the surface d) None of the above 4 / 50 4. Allowable bearing pressure for a foundation depends on: a) Allowable settlement only b) Ultimate bearing capacity of soil only c) Both allowable settlement & ultimate bearing capacity of soil d) None of the above 5 / 50 5. The degree of saturation, Sr, of soil in percentage has a value a) Sr > 0 b) Sr ≤ 0 c) 0 < S < 100 d) 0 ≤ S ≤ 100 6 / 50 6. In Rankine's earth pressure theory, the following assumption is made: a) Wall face is rough and vertical b) Backfill is cohesive soil c) Wall face is smooth and vertical d) Elastic equilibrium is satisfied 7 / 50 7. 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: a) 2 b) 1 c) 0.5 d) None of the above 8 / 50 8. Particle size range is measured by a) Effective size b) Uniformity coefficient c) Coefficient of curvature d) None of the above 9 / 50 9. Angle of internal friction of silty sand a) 5-20° b) 24-30° c) 27-33° d) 30-35° 10 / 50 10. The internal molecular attraction of a soil is known as cohesion: a) Increases as the moisture content decreases b) Is more in well-compacted clays c) Depends upon the external applied load d) Decreases as the moisture content increases 11 / 50 11. Units of the coefficient of permeability a) cm/sec b) sec/cm c) cm/sec^2 d) sec^2/cm 12 / 50 12. The assumption of Rankine's theory of earth pressure is: a) The soil is semi-finite, homogeneous, dry, and cohesionless b) Ground surface is a plane which may be inclined or horizontal c) Back of the wall is vertical and smooth d) All of the above 13 / 50 13. Bearing capacity of soil primarily depends upon: a) Air void b) Water content c) Chemical d) Rate of loading 14 / 50 14. For a well-graded soil, the coefficient of curvature will be between a) 1 and 10 b) 2 and 8 c) 3 and 7 d) 1 and 3 15 / 50 15. The structure that derives its stability due to self-weight is: a) Sheet pile wall b) Bulkhead c) Cantilever retaining wall d) Masonry retaining wall 16 / 50 16. The angle between the directions of the failure and the major principal plane is equal to: a) 90° + effective angle of shearing resistance b) 90° + half of the angle of shearing resistance c) 45° + half of the angle of shearing resistance d) 45° - half of the angle of shearing resistance 17 / 50 17. The force exerted by flowing water on the sediment particles to cause their motion is called: a) Eddy force b) Buoyant force c) Tractive force d) Kinematic force 18 / 50 18. Earth pressure at rest can be defined as lateral pressure exerted by the soil when the retaining wall tends to a) Move away from the backfill b) No movement relative to the backfill c) Move into the soil d) All of the above 19 / 50 19. Cohesive soils are generally/normally a) Plastic and also compressible b) Elastic and also compressible c) Plastic but incompressible d) None of the above 20 / 50 20. Soil having more cohesion than sand a) Silt b) Gravel c) Clay d) None of the above 21 / 50 21. Terzaghi's analysis assumes: a) Soil is homogeneous and isotropic b) Elastic zone has straight boundaries inclined at (Theta = theta) to the horizontal and plastic zones fully developed c) Failure zones do not extend above the horizontal plane through the base of the footing d) All of the above 22 / 50 22. According to Terzaghi's theory, the ultimate B.C., at ground surface for a purely cohesive soil and for a smooth base of a strip footing is: a) 2.57c b) 5.14c c) 10.28c d) 12.0c 23 / 50 23. The relationship between void ratio (e) and porosity ratio (n) is a) n = e / (1-n) b) e = n / (1-n) c) e = (1+n) / (1-e) d) (1+e) / (1-e) 24 / 50 24. The bearing capacity of soil depends on: a) Grain size of the soil b) Load intensity c) On the load d) Rate of loading 25 / 50 25. Which sequence is correct regarding different coefficients of friction in increasing order? a) Kp-Ka-Ko b) Ka-Ko-Kp c) Ko-Kp-Ka d) Kp-Ko-Ka 26 / 50 26. Bleeder wells are required to a) Increase discharge from the main well b) Store drainage water c) Collect seepage water in dams d) Relieve pressure in impervious layers 27 / 50 27. The relation between dry density (ρd), bulk density (ρ), and water content (w) is a) ρ = ρd / (1 + w) b) ρd = ρ / (1 + w) c) w = ρ / (1 + ρd) d) w = ρd / (1 + ρ) 28 / 50 28. As moisture content of soil increases, cohesion of soil a) Increases b) Decreases c) Constant d) All of the above 29 / 50 29. Void ratio, e, of a soil can a) Never be greater than one b) Be equal to zero c) Be greater than zero d) Be between 0 and 1 30 / 50 30. The neutral stress in a soil mass is a) Force per neutral area b) Force per unit effective area of the soil c) Stress shared by the particles of the soil d) Stress shared by the pore water 31 / 50 31. The bearing capacity of soil primarily depends on: a) Depends on the size of the footing b) Load intensity c) Depends on the load d) Rate of loading 32 / 50 32. Sheet pile walls are used as: a) Retaining walls for waterfront construction b) Load-bearing pile foundations c) Seepage preventing devices d) Uplift preventing devices 33 / 50 33. Which of the following statements is true? a) In a dry soil, all the voids are filled with air. b) In a saturated soil, all the voids are filled with water. c) In a partly saturated soil, the voids are occupied by both air and water. d) All of the above 34 / 50 34. If in a partially saturated soil, the degree of saturation is 40%, then the air content of the soil is a) 40% b) 50% c) 60% d) 70% 35 / 50 35. The ratio of volume of voids to the total volume of the given soil mass is known as a) Porosity b) Void ratio c) Specific gravity d) Water content 36 / 50 36. The angle of internal friction for cohesive soils is equal to: a) Zero b) 30° c) 45° d) 15° 37 / 50 37. * A 'shear stress' is a stress which is applied.......to a face of material. a) Perpendicularity b) Parallel c) Softly d) With a bang 38 / 50 38. If the shearing stress is zero on two planes, then the angle between the two planes is a) 45° b) 90° c) 135° d) 180° 39 / 50 39. The bearing capacity of soil depends upon: a) Shape and size of the particles b) Cohesive properties of particles c) Internal frictional resistance of particles d) All of the above 40 / 50 40. The slope of the flow curve obtained in the liquid limit test is called a) Liquidity index b) Plasticity index c) Toughness index d) Flow index 41 / 50 41. Inorganic soils with low plasticity are denoted by a) ML b) CH c) MH d) SH 42 / 50 42. Agent of transportation for alluvial soils is a) Water b) Gravity c) Wind d) Ice 43 / 50 43. The passive earth pressure of a soil can be defined as lateral pressure exerted by the soil when the retaining wall tends to a) Move away from the backfill b) No movement relative to the backfill c) Move into the soil d) Any of the above 44 / 50 44. Base failure refers to a failure surface that: a) Is above the toe of the slope b) Includes the toe of the slope c) Is below the toe of the slope d) None of the above 45 / 50 45. Contribution due to skin friction is maximum in: a) Sands b) Soft clays c) Piles resting on rock d) None of the above 46 / 50 46. Physical weathering occurs due to a) Temperature changes b) Wedging action of ice c) Spreading of roots of plants d) All of the above 47 / 50 47. A foundation may be classified as shallow if: a) Depth is less than 6 m b) Depth is less than its width c) Depth is less than 1 m d) None of the above 48 / 50 48. The wall constructed to resist horizontal pressure is: a) Main wall b) Partition wall c) Retaining wall d) All of the above 49 / 50 49. The water content of soils is defined as the ratio of a) Volume of water to that of voids b) Weight of water to the dry soil weight c) Volume of water to the gross volume of soil d) Weight of water to that of the soil 50 / 50 50. Raising of water table in shallow foundations, near foundation level: a) Reduces bearing capacity b) Increases bearing capacity c) Does not affect bearing capacity d) Increases and then decreases bearing capacity Please provide accurate information so we can send your Achievement Certificate by mail. 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