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Civil Engineering :: Soil Mechanics and Foundation Engineering

  1.  

    Minimum depth of a footing carrying a heavy load, is calculated by the formula

  2. A.

     d = \(\sqrt{ 3W/4fL}\)(L +1)

    B.

    d = \(\sqrt{ 3W/4fL}\) (L -1)

    C.

    d = ( L -1 )\(\sqrt{ 4fL/3w}\)

    D.

    d = (L -1)\(\sqrt{ 2W/3fL}\)

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

  4. A.

    down and outwards on a slip surface

    B.

    up and inwards on a slip surface

    C.

    horizontal upward and parallel to base

    D.

    horizontal inward and parallel to base.

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  5. The coefficient of curvature is defined

  6. A.

    \(\frac { D60 } { D10 }\)

    B.

    \(\frac { D 10 } { D60}\)

    C.

    \(\frac { D30^2} { D60 D10}\)

    D.

    \(\frac { D10^2} { D30 D60}\)

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  7. The effective size of particles of soil is denoted by

  8. A.

    D10

    B.

    D20

    C.

    D30

    D.

    D60

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

  10. A.

    50%

    B.
    60%
    C.

    75%

    D.

    80%

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

  12. A.

    stress to strain

    B.
    strain to stress
    C.

    stress to settlement

    D.

    rate of loading to that of settlement.

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  13.  

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

  14. A.

    slope failure

    B.

    face failure

    C.

    face failure

    D.
    toe failure.

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  15. Rankine's theory of active earth pressure assumes

  16. A.

    soil mass is homogeneous, dry and cohesionless

    B.
    ground surface is a plane which may be horizontal or inclined
    C.

    back of the wall is vertical and smooth

    D.

    wall yields about the base

    E.

    all the above.

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

  18. A.

    volume of water to volume of given soil

    B.

    volume of water to volume of voids in soil

    C.

    weight of water to weight of air in voids

    D.

    weight of water to weight of solids of given mass of soil.

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  19. Accurate determination of water content, is made by

  20. A.

    calcium carbide method

    B.

    sand bath method

    C.

    alcohol method

    D.

    oven-drying method.

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