Foundation engineering miscellaneous

Foundation engineering miscellaneous

Easy Questions

Foundation Engineering

Foundation engineering miscellaneous
  1. In the context of collecting undisturbed soil samples of high quality using a soon sampler, following statements are made.
    I. Area ratio should be less than 10%.
    II. Clearance ratio should less than 1%.
    With reference to above statements, which of the following applies?








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    For collecting undisturbed soil samples of high quality using spoon sampler.
    –area should be less than 10%
    –clear once ratio should be from 1 to 3%.

    Correct Option: C

    For collecting undisturbed soil samples of high quality using spoon sampler.
    –area should be less than 10%
    –clear once ratio should be from 1 to 3%.

  1. Negative skin friction in a soil is considered when the pile is constructed through a








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    Negative skin friction is caused by filled up soils, soft clay and other loose soils.

    Correct Option: A

    Negative skin friction is caused by filled up soils, soft clay and other loose soils.

  1. There are two footings resting on the ground surface. One footing is square of dimension ‘B’. The other is strip footing of width ‘B’. Both of them are subjected to a loading intensity of q. The pressure intensity at any depth below the base of the footing along the centre line would be








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    L/B of square footing = 1
    L/B strip footing = ∞
    ∴ Pressure intensity is large for square footing and small for square footing.

    Correct Option: C

    L/B of square footing = 1
    L/B strip footing = ∞
    ∴ Pressure intensity is large for square footing and small for square footing.

  1. Figure below shows a smooth vertical gravity retaining wall with cohesion less soil back fill having an angle of internal friction Φ. In the graphical representation of Rankine’s active earth pressure for the retaining wall shown in figure, length OP represents








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    OP doesn’t cut Mohr’s circle tangentially
    ∴ OP is the live represented vertical stand base.

    Correct Option: A

    OP doesn’t cut Mohr’s circle tangentially
    ∴ OP is the live represented vertical stand base.

  1. List-I below gives the possible types of failure for a finite soil slope and List-II gives the reasons for these different types of failure. Match the items in List-I with the items in List-II.
    List - I
    P Base failure
    Q Face Failure
    R Toe Failure
    List - II
    1. Soils above and below the toe have same strength
    2. Soil above the toe is comparatively weaker
    3. Soil above the toe is comparatively stronger








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    P - 1 Q - 2 R - 3

    Correct Option: A

    P - 1 Q - 2 R - 3