Q.1

The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated

  • sands
  • clays
  • gravels
  • highly organic soils.
Q.2

Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than

  • 60°C
  • 80°C
  • 100°C
  • 110°C
Q.3

For determining the moisture content of a soil sample, the following data is available Weight of container =g, Weight of soil sample and =g container, Weight of soil sample (dried) and =g container. The moisture content of the soil sample, is

  • 15%
  • 18%
  • 20%
  • 25%
Q.4

Water formed transported soil is

  • alluvial
  • marine
  • lacustrine
  • loess.
Q.5

Buoyant unit weight equals the saturated density

  • multiplied by unit weight of water
  • divided by unit weight of water
  • plus unit weight of water
  • minus unit weight of water.
Q.6

The specific gravity of quartz, is

  • 2.65
  • 2.72
  • 2.85
  • 2.90
Q.7

The specific gravity of quartz, is

  • 2.65
  • 2.72
  • 2.85
  • 2.90
Q.8

A decrease in water content results in a reduction of the volume of a soil in

  • liquid state
  • plastic state
  • semi solid state
  • all of these.
Q.9

Pick up the correct statement from the following:

  • An unconfined compression test is a special case of triaxial compression test
  • An unconfined compression test is a special case of direct shear test
  • The confining pressure is maximum during an unconfined compression test
  • The cylindrical specimen of a soil is subjected to major principal stress till it fails due to shearing along the plane of the failure.
Q.10

If the cohesive force, (c), is 1.5 t/m2, the density (γ) of the soil is 2.0 t/m3, factor of safety (F) is 1.5 and stability factor (Sn) is 0.the safe height of the §lope, is

  • 5 metres
  • 8 metres
  • 10 metres
  • 12 metres
Q.11

Pick up the correct statement from the following:

  • If the ratio of depth to width is less than 2, it is shallow foundation
  • If the ratio of depth to width is more than 2, it is deep foundation
  • If the ratio of the length to width is between 1 and 2, it is spread foundation
  • If the length is large as compared to width, it is a strip foundation
  • All the above.
Q.12

A partially saturated soil is classified as

  • one phase soil
  • two phase soil
  • three phase soil
  • four phase soil.
Q.13

Pick up the correct statement from the following:

  • The phenomenon of quicksand generally occurs in the cohesionless soil
  • At critical hydraulic gradient, the saturated sand becomes quick
  • The critical gradient depends on the void ratio and the specific gravity
  • The quick sand occurs more in fine sand and silt than coarse material
  • All the above.
Q.14

In a liquid limit test, the moisture content atblows wasand that atblows was 20%. The liquid limit of the soil, is

  • 35%
  • 50%
  • 65%
  • none of these.
Q.15

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

  • down and outwards on a slip surface
  • up and inwards on a slip surface
  • horizontal upward and parallel to base
  • horizontal inward and parallel to base.
Q.16

The active earth pressure of a soil is proportional to (where φ is the angle of friction of the soil)

  • tan (45° - φ)
  • tan2 (45° + φ/2)
  • tan2 (45° - φ/2)
  • tan (45° + φ)
Q.17

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.18

The effective size of particles of soil is denoted by

  • D10
  • D20
  • D30
  • D60
Q.19

Pick up the correct statement from the following:

  • The rise of the ground surface due to frost action is called frost heave.
  • The freezing of water is accompained by a volume increase of 9%.
  • Below freezing point, higher soil suction develops.
  • The magnitude of frost heave decreases as the degree of saturation of soil decreases
  • All the above.
Q.20

Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.and void ratio 0.is

  • 50%
  • 60%
  • 75%
  • 80%
Q.21

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.22

Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.and void ratio 0.is

  • 50%
  • 60%
  • 75%
  • 80%
Q.23

Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.and void ratio 0.is

  • 50%
  • 60%
  • 75%
  • 80%
Q.24

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.25

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
  • none of these.
Q.26

Pick up the correct statement from the following:

  • Sandy clayloam contains highest percentage of sand
  • Silty clayloam contains highest percentage of silt
  • Stiff boulder clay offers maximum shear strength
  • Soft chalk carries least safe load
  • All the above.
Q.27

Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at

  • H/4 above the base parallel to base
  • H/2 above the base parallel to base
  • H/3 above the base parallel to base
  • H/5 above the base parallel to base.
Q.28

Minimum size of the particles of silt soil, is

  • 0.002 mm
  • 0.04 mm
  • 0.06 mm.
  • 0.08 mm
  • 1 mm
Q.29

Pick up the clay soil group which does not swell when wet from the following :

  • Kaolinite group
  • Illite group
  • Vermiculite group
  • Montrorillonite group.
Q.30

Stoke's law sates that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon

  • shape of grain
  • weight of grain
  • size of grain
  • shape and size of grain
  • shape, size and weight of grain.
0 h : 0 m : 1 s