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Civil Engineering
Soil Mechanics And Foundations
Quiz 1
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Q.1
If the failure of a finite slope occurs through the toe, it is known as
slope failure
face failure
base failure
toe failure.
Q.2
The liquidity index is defined as a ratio expressed as percentage of
plastic limit minus the natural water content, to its plasticity index
natural water content minus its plastic limit to its plasticity index
natural water content plus its plastic limit to its plasticity index
liquid limit minus the natural water content to the plasticity index.
Q.3
The lateral earth pressure on a retaining wall
is equal to mass of the soil retained
proportional to the depth of the soil
proportional to the square of the depth of the soil
proportional to the internal friction of the soil
E. none of these.
Q.4
The ultimate consolidation settlement of a soil is
directly proportional to the voids ratio
directly proportional to the compression index
inversely proportional to the compression index
none of the above
Q.5
Which one of the following clays behaves like a dense sand ?
over-consolidated ciay with a high over-consolidation ratio
over-consolidated clay with a low over-consolidation ratio
normally consolidated clay
under-consolidated clay
Q.6
The lateral earth pressure on a retaining wall is proportional to
The depth of the soil
The soil retained
The internal friction of the soil
The square of the depth of the soil
Q.7
The coefficient of compressibility of soil, is the ratio of
stress to strain
strain to stress
stress to settlement
rate of loading to that of settlement.
Q.8
A soil has bulk density 2.g/cm3 and water contentper cent, the dry density of the sample, is
1.0 g/cm2
1.5 g/cm3
2.0 g/cm3
2.5 g/cm3
Q.9
When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as
negative
zero
non-plastic (NP)
1
Q.10
The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known
porosity
specific gravity
void ratio
water content.
Q.11
Geologic cycle for the formation of soil, is
Upheavel → transportation → deposition → weathering
Weathering → upheaval → transportation → deposition
Transportation → upheaval → weathering → deposition
Weathering → transportation → deposition → upheaval
E. None of these.
Q.12
Which of the following soil has the finest grains?
Silt
Clay
Fine sand
Coarse sand
Q.13
The angle of internal friction is maximum for
Round-grained dense sand
Round-grained loose sand
Angular-grained dense sand
None of the above
Q.14
A decrease in water content results in a reduction of the volume of a soil in
Liquid state
Semi solid state
Plastic state
All of these
Q.15
The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known
liquid limit
plastic limit
shrinkage limit
permeability limit.
Q.16
Which one of the following statements is true ?
Clays are more porous than sands
Pressure of organic matter in a soil decreases the bearing capacity of the soil
Aluminous cement is used for foundations in soils with chemical deposits
All the above.
Q.17
When drainage is permitted under initially applied normal stress only and full primarily consolidation is allowed to take place, the test is known as
quick test
drained test
consolidated undrained test
none of these.
Q.18
According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is
0
7
17
PI>27
Q.19
The ratio of volume of voids to the total volume of soil mass is called
air content
porosity
percentage air voids
voids ratio
Q.20
Which of the following is a measure of particle size range ?
effective size
uniformity coefficient
coefficient of curvature
none of the above
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