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Civil Engineering :: Soil Mechanics and Foundation

  1. Select the correct statement.

  2. A.

     The greater the viscosity, the greater is permeability.

    B.

     The greater the unit weight, the greater is permeability.

    C.

     The greater the unit weight, the smaller is permeability.

    D.

     Unit weight does not affect per-meability.

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  3. Select the correct statement.

  4. A.

     Unit weight of dry soil is greater than unit weight of wet soil.

    B.

     For dry soils, dry unit weight is less than total unit weight.

    C.

     Unit weight of soil increases due to submergence in water.

    D.

     Unit weight of soil decreases due to submergence in water.

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  5. 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

  6. A.

     Natural slope line

    B.

     Repose line

    C.

     The φ line

    D.

     All the above

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  7. Quick sand is a

  8. A.

     type of sand

    B.

     flow condition occurring in cohesive soils

    C.

     flow condition occurring in cohesionless soils

    D.

     flow condition occurring in both cohesive and cohesionless soils

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  9. Time factor for a clay layer is

  10. A.

     a dimensional parameter

    B.

     directly proportional to permeability of soil

    C.

     inversely proportional to drainage path

    D.

     independent of thickness of clay layer

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  11. The slope of isochrone at any point at a given time indicates the rate of change of

  12. A.

     effective stress with time

    B.

     effective stress with depth

    C.

     pore water pressure with depth

    D.

     pore water pressure with time

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  13. When the degree of saturation is zero, the soil mass under consideration represents

  14. A.

     one phase system

    B.

     two phase system with soil and air

    C.

     two phase system with soil and water

    D.

     three phase system

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  15. Hydrometer readings are corrected for:

  16. A.

     Temperature correction

    B.

     Meniscus correction

    C.

     Dispersing agent correction

    D.

     Temperature, meniscus and dispersing agent corrections

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  17. During the first stage of triaxial test when the cell pressure is increased from 0.10 N/mm² to 0.26 N/mm², the pore water pressure increases from 0.07 N/mm² to 0.15 “N/mm². Skempton’s pore pressure parameter B is

  18. A.

     0.5

    B.

     -0.5

    C.

     2.0

    D.

     -2.0

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  19. Inorganic soils with low compressibility are represented by

  20. A.

     MH

    B.

     SL

    C.

     ML

    D.

     CH

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