Q.1

When a cohesionless soil attains quick condition, it looses

  • shear strength
  • bearing capacity
  • both (a) and (b)
  • neither (a) nor (6).
Q.2

The specific yield of soil depends upon

  • compaction of stratum
  • distribution of pores
  • shape and size of particles
  • all the above.
Q.3

In active state of plastic equilibrium in a non cohesive soil with horizontal ground surface

  • major principal stress is horizontal
  • minor principal stress is vertical
  • major principal stress is vertical
  • minor and major principal stresses are equally inclined to horizontal.
Q.4

The consolidation time for soils

  • increases with increasing compressibility
  • decreases with increasing permeability
  • increases rapidly with increasing size of soil mass
  • is independent of the magnitude of the stress change.
  • All the above.
Q.5

A pycnometer is used to determine

  • voids ratio
  • dry density
  • water content
  • density index.
Q.6

The shear strength in plastic undrained clay, is due to

  • inter-granular friction
  • internal friction
  • cohesion
  • none of these.
Q.7

A grillage foundation

  • is provided for heavily loaded isolated columns
  • is treated as spread foundation
  • consists of two sets of perpendicularly placed steel beams
  • all the above.
Q.8

When a cohesionless soil attains quick condition, it looses

  • shear strength
  • bearing capacity
  • both (a) and (b)
  • neither (a) nor (6).
Q.9

The specific yield of soil depends upon

  • compaction of stratum
  • distribution of pores
  • shape and size of particles
  • all the above.
Q.10

The shear strength in plastic undrained clay, is due to

  • inter-granular friction
  • internal friction
  • cohesion
  • none of these.
Q.11

The compression index of a soil

  • decreases with an increase in the liquid limit
  • increases with an increase in the liquid limit
  • decreases with an increase in the plastic limit
  • is not related with plastic limit.
Q.12

Pick up the in-correct statement from the following: The soils which contain montmorillonite minerals

  • swell more when wet
  • shrink more when dry
  • possess high plasticity
  • possess high coefficient of internal coefficient
  • None of these.
Q.13

The degree of saturation of the soil sample stated in Q. No,is

  • 60%
  • 62%
  • 64%
  • 66%
Q.14

Pick up the correct statement from the following :

  • To an agriculturist, soil is the substance existing on the earth's surface, which grows and develops plants
  • To a geologist, soil is the material in a relatively thin surface zone within which roots occur, and rest of the crust is termed as rock irrespective of hardness
  • To an engineer, soil is the unaggregated and uncemented deposits of minerals and organic particles covering the earth's crust
  • All the above.
Q.15

The maximum load carried by a pile, when it continues to sink without further increase of load, is known as

  • ultimate load carrying capacity
  • ultimate bearing capacity
  • ultimate bearing resistant
  • all the above.
Q.16

For determing the specific gravity of soil solids, using a pycnometer ofcc., the following data is available : Weight of dry empty pycnometer =g Weight of dried soil and pycnometer =g Weight of dried soil and distilled =g water filled in pycnometer up to top The specific gravity of soil soilds, is

  • 2.0
  • 2.25
  • 2.50
  • 2.75
Q.17

Number of piles required to support a column, is

  • 1
  • 2
  • 3
  • 4
Q.18

The earth pressure of a soil at rest, is proportional to (where φ is the angle of internal friction of the soil)

  • tan (45° - φ)
  • tan (45° + φ)
  • tan2 (45° - φ)
  • tan2 (45° + φ)
  • none of these
Q.19

For a clay slope of height ofm, the stability number is 0.γ = 2.0 t/m3, C = 2.5 t/m2, the critical height of the slope of the soil, is

  • 4.0 m
  • 12.5 m
  • 25.0 m
  • 15.0 m
Q.20

The ratio of settlement at any time 't' to the final settlement, is known as

  • co-efficient of consolidation
  • degree of consolidation
  • consolidation index
  • consolidation of undisturbed soil.
Q.21

The soil which contains finest grain particles, is

  • coarse sand
  • fine sand
  • silt
  • clay.
Q.22

The coefficient of curvature for a well graded soil, must be between

  • 0.5 to 1.0
  • 1.0 to 3.0
  • 3.0 to 4.0
  • 4.0 to 5.0
Q.23

Pick up the correct statement from the following:

  • O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve
  • The line which shows moisture content dry density relation for soil containing a constant percentage of air voids, is known as air void line
  • The weight of hammer used for compaction test is 25 kg
  • The free fall of hammer for compaction is 30.5 cm
  • All the above.
Q.24

Pick up the correct statement from the following:

  • Kaolinite is most stable clay
  • Kaolinite shows a very little sign of swelling on wetting
  • Kaolinite when wet, becomes moderately plastic because negative electro magnetic charges on platelets attrack water
  • Kaolinite is also called China clay
  • All the above.
Q.25

The soil moisture driven off by heat, is called

  • free water
  • hydroscopic water
  • gravity water
  • none of these.
Q.26

Pick up the correct statement from the following:

  • The void space between the soil grains, is filled partly with air and partly with water
  • In perfectly saturated soil, the voids are completely filled with water
  • In dry soil, the voids are completely filled with air
  • all the above.
Q.27

If σ0' and σ' represent initial and increased pressure ; e0 and e void ratios corresponding to initial and increased pressure ; and C0 the compression index (dimensionless), then, the virgin compression curve as expressed by Terzaghi empirical formula is

  • e = e0 + Cc log10 σ'/σ0'
  • e = e0 - Cc log10 σ'/σ0'
  • e0 = e - Cc log10 σ'/σ0'
  • e0 = e + Cc log10 σ0'/σ'
Q.28

The minimum centre to centre distance of friction piles of 1 m diameter, is

  • 2 m
  • 2 m to 3 m
  • 3 m to 4 m
  • 5 m
Q.29

The Westergaard analysis is used for

  • sandy soils
  • cohesive soils
  • stratified soils
  • clayey soils.
Q.30

Pick up the correct statement applicable to plate load test

  • Width of the test pit for plate load test is made five times the width of the plate
  • At the centre of the test pit, a hole is dug out whose size is kept equal to the size of the test plate
  • Bottom level of the hole dug at the centre of the test pit, is kept at the level of the actual formation
  • Ratio of the depth of the hole to the width of the test plate is the same as the ratio of the depth of the actual formation to the width of the formation
  • All the above.
0 h : 0 m : 1 s