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Civil Engineering :: Soil Mechanics and Foundation

  1. Effective stress is

  2. A.

     the stress at particles contact

    B.

     a physical parameter that can be measured

    C.

     important because it is a function of engineering properties of soil

    D.

     all of the above


  3. In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be

  4. A.

     less than 300 mm

    B.

     between 300 mm and 750 mm

    C.

     between 750 mm and 1 m

    D.

     greater than 1 m


  5. The clay mineral with the largest swelling and shrinkage characteristics is

  6. A.

     kaolinite

    B.

     illite

    C.

     montmorillonite

    D.

     none of the above


  7. If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then

  8. A.

     The liquid limit of soil always increases

    B.

     The liquid limit of soil always decreases

    C.

     The liquid limit of soil may increase

    D.

     The liquid limit of soil may decrease


  9. According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is

  10. A.

     0 < PI < 7

    B.

     7<pi< 17<="" label=""></pi<>

    C.

     17<pi<27< label=""></pi<27<>

    D.

     PI>27


  11. Which of the following is a measure of particle size range ?

  12. A.

     effective size

    B.

     uniformity coefficient

    C.

     coefficient of curvature

    D.

     none of the above


  13. Sand particles are made of

  14. A.

     rock minerals

    B.

     kaolinite

    C.

     illite

    D.

     montmorillonite


  15. Uniformity coefficient of a soil is

  16. A.

     always less than 1

    B.

     always equal to 1

    C.

     equal to or less than 1

    D.

     equal to or gi eater than 1


  17. Coefficient of consolidation of a soil is affected by

  18. A.

     compressibility

    B.

     permeability

    C.

     both compressibility and permeability

    D.

     none of the above


  19. The ratio of volume of voids to the total volume of soil mass is called

  20. A.

     air content

    B.

     porosity

    C.

     percentage air voids

    D.

     voids ratio