Soil Mechanics and Foundation Sheet 40
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1) Question.
At a site having a deposit of dry sandy soil, an average soil of standard penetration resistance N equal to 6 was recorded. The compactness of the soil deposit can be described as
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2) Question.
For a damped vibrating system with single degree of freedom, resonance occurs at a frequency ratio of
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3) Question.
A fully compensated raft foundation for a building is
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4) Question.
A slope is to be constructed at an angle of to the horizontal from a soil having the properties, . Taylor's stability number 0.046. If a factor of safety (with respect to cohesion) of 1.5 is required, then the safe height of the slope will be
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5) Question.
A soil sample has 28 g of soil solids, 10 cu cm of voids, 9 g of water and specific gravity of soil grains of 2.7; consider the following statements in this regard:
1. The water content is 9/28 x 100%
2. The void ratio is 10 x 2.7/28
3. Degree of saturation is 9 x 100/(10x2.7)
4. The porosity is 10 x 2.7/(28+10x2.7)
of these statements
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6) Question.
In flownet diagram, the length of the flow line in the last square is 2 m, the total head loss is 18 m and the number of potential drops is 12.
The value of exit gradient is
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7) Question.
Which of the following have an influence on the value of permeability?
1. void ratio
2. degree of saturation
3. pressure head
4. grain size
Select the correct answer using the codes given below.
Codes:
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8) Question.
The static cone penetration test and a standard penetration test are performed on a soil at a certain depth. The value of static cone penetration test is 8 MPa and the N value is 20. The soil met with at that depth is
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9) Question.
Given that
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10) Question.
Given that for an overconsolidated clay soil deposit, the pressure under which the deposit has been fully consolidated in the past is and the present overburden pressure is , the overconsolidation ratio of the soil deposit is
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