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Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 1

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1. In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil, is




2. The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known




3. Pick up the correct statement from the following:




4. Which one of the following statements is true ?




5. The lateral earth pressure on a retaining wall




6. The internal molecular attraction of a soil, the cohesion




7. The quantity of seepage of water through soils is proportional to




8. When drainage is permitted under initially applied normal stress only and full primarily consolidation is allowed to take place, the test is known as




9. The minimum water content at which the soil retains its liquid state and also possesses a small shearing strength against flowing, is known




10. Minimum size of the particles of silt soil, is




11. The maximum value of effective stress in the past divided by the present value, is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is




12. Under-reamed piles are generally




13. Pick up the clay soil group which does not swell when wet from the following :




14. Factor of safety against sliding of a slope, is the ratio of




15. The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known




16. A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm3. If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is




17. A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation is




18. According to Coulomb's wedge theory, the active earth pressure slides the wedge




19. Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is




20. The coefficient of compressibility of soil, is the ratio of




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




22. Rankine's theory of active earth pressure assumes




23. The water content of soil is defined as the ratio of




24. Accurate determination of water content, is made by




25. Stoke's law sates that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon




26. Pick up the correct statement from the following:




27. Pick up the correct statement from the following :




28. The liquid limit and plastic limit exist in




29. Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at




30. The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known




31. The ultimate Settlement of a soil is directly proportional to:




32. The seepage force in a soil, is




33. Pick up the correct statement from the following:




34. The clay soil mainly consists of




35. The liquidity index is defined as a ratio expressed as percentage of




36. The fluid generally used for grouting is




37. A coarse-grained soil has a voids ratio 0.75, and specific gravity as 2.75. The critical gradient at which quick sand condition occurs, is




38. Failure of the stability of slopes, generally occurs along




39. Pick up the correct statement from the following:




40. Geologic cycle for the formation of soil, is




41. The weight of a pycnometer containing 400 g sand and water full to the top is 2150 g. The weight of pycnometer full of clean water is 1950 g. If specific gravity of the soil is 2.5, the water content is