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Civil Engineering :: Soil Mechanics and Foundation Engineering

  1. The compression index of a soil

  2. A.

    decreases with an increase in the liquid limit

    B.

    increases with an increase in the liquid limit

    C.
    decreases with an increase in the plastic limit
    D.

    is not related with plastic limit.

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  3. Pick up the correct statement from the following:

  4. A.

    The void space between the soil grains, is filled partly with air and partly with water

    B.

    In perfectly saturated soil, the voids are completely filled with water

    C.

    In dry soil, the voids are completely filled with air

    D.
    all the above.

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  5. For a homogeneous earth dam 50 m high having 2 m free broad, a flow net was constructed and the results were : Number of potential drops = 2.4 Number of flow channels = 0.4. If coefficiency of permeability of the dam mateiral is 3 x 10-3 cm3/sec, the discharge per metre length of dam, is

  6. A.

    12 x 10-5 m3/sec

    B.

    24 x 10-3 m3/sec

    C.

    6 x 10-5 m3/sec

    D.

    24 x 10-5 m3/sec

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  7. W is the weight of soil having a moisture content ω. If V is the volume of proctor's mould, the dry density of the soil is

  8. A.

    \(\frac { WV } {1+W }\)

    B.

    \(\frac { V } { W(1+W) }\)

    C.

    \( \frac { W} { V(1+W) } \)

    D.

    \(\frac { V(1+W) } { W } \)

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  9. For shear strength, triaxial shear test is suitable because

  10. A.

    it can be performed under all three drainage conditions

    B.

    precise measurement of the pore pressure and volume change during the test is possible

    C.

    stress distribution on the failure plane, is uniform

    D.

    state of stress within the specimen during any stage of the test as well as at failure, is completely determined

    E.

    all the above.

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  11. The degree of saturation of the soil sample stated in Q. No, 216, is

  12. A.

    60%

    B.
    62%
    C.

    64%

    D.

    66%

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  13. Number of piles required to support a column, is

  14. A.

    1

    B.

    2

    C.

    3

    D.

    4

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  15. The soil moisture driven off by heat, is called

  16. A.

    free water

    B.

    hydroscopic water

    C.

    gravity water

    D.

    none of these.

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  17. If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is

  18. A.

    0.2200 cm/sec

    B.

    0.2225 cm/sec

    C.

    0.2250 cm/sec

    D.

    0.2275 cm/sec

    E.
    0.2300 cm/sec

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  19. The direct shear test suffers from the following disadvantage:

  20. A.

    Drain condition cannot be controlled

    B.

    Pore water pressure cannot be measured

    C.

    Shear stress on the failure plane is not uniform.

    D.

    The area under the shear and vertical loads does not remain constant throughout the test

    E.

    All the above.

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