Practice Test: Question Set - 01
1. A plane inclined at an angle ‘φ’ to the horizontal at which the soil is expected to stay in the absence of any lateral support, is known as
- (A) Natural
slope line
- (B) Repose line
- (C) The φ line
- (D) All the
above
2. Rise of water table above the ground surface causes
- (A) Equal increase in pore water pressure and total
stress
- (B) Equal decrease in pore water pressure and total
stress
- (C) Increase in pore water pressure but decrease in
total stress
- (D) Decrease in pore water pressure but increase in
total stress
3. Terzaghi’s theory of one dimensional consolidation assumes
- (A) Soil
is homogeneous and fully saturated
- (B) Water
and soil particles are incompressible
- (C) Deformation
of the soil, is entirely due to change in volume
- (D) All the
above
4. If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then
- (A) The liquid limit of soil always increases
- (B) The liquid limit of soil always decreases
- (C) The liquid limit of soil may increase
- (D) The liquid limit of soil may decrease
5. A tri-axial shear test is preferred to direct shear test, because
- (A) It
can be performed under all three drainage conditions with complete control
- (B) Precise
measurement of pore pressure and change in volume during test, is not possible
- (C) Stress
distribution on the failure plane, is non uniform
- (D) None of
these
6. The average coefficient of permeability of natural deposits
- (A) Parallel to stratification is always greater than
that perpendicular to stratification
- (B) Parallel to stratification is always less than that
perpendicular to stratification
- (C) Is always same in both directions
- (D) Parallel to stratification may or may not be
greater than that perpendicular to stratification
7. Pick up the correct statement from the following:
- (A) The
dry density reduces by addition of water after attaining optimum moisture
content
- (B) The
line joining the peak of three moisture content graphs obtained by using three
compactive energies, is called line of optimus
- (C) Well
graded coarse grained soils can be compacted to a very high density as compared
to fine grained soils
- (D) All the
above
8. The shear strength of a soil
- (A) Is directly proportional to the angle of internal
friction of the soil
- (B) Is inversely proportional to the angle of internal
friction of the soil
- (C) Decreases with increase in normal stress
- (D) Decreases with decrease in normal stress
9. Pick up the correct statement from the following:
- (A) The object
of classifying soils is to arrange them into groups according to their
properties and behaviour
- (B) A
soil classification system is meant to provide an accepted and systematic
method of describing the various types of soils eliminating personal factors
- (C) The
first category of soil classification is based on grain size of the soil
- (D) All the
above
10. The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is
- (A) Vertical if the soil is in an active state
of plastic equilibrium
- (B) Vertical if the soil is in a passive state of
plastic equilibrium
- (C) Inclined at 45° to the vertical plane
- (D) None of the above
11. A grillage foundation
- (A) Is provided
for heavily loaded isolated columns
- (B) Is
treated as spread foundation
- (C) Consists of
two sets of perpendicularly placed steel beams
- (D) All the
above
12. Effective stress on soil
- (A) Increases voids ratio and decreases permeability
- (B) Increases both voids ratio and permeability
- (C) Decreases both voids ratio and permeability
- (D) Decreases voids ratio and increases permeability
13. Hydrometer readings are corrected for:
- (A) Temperature
correction
- (B) Meniscus
correction
- (C) Dispersing
agent correction
- (D) Temperature,
meniscus and dispersing agent corrections
14. The ultimate consolidation settlement of a structure resting on a soil
- (A) Decreases with the increase in the initial voids
ratio
- (B) Decreases with the decrease in the plastic limit
- (C) Increases with the increase in the initial voids
ratio
- (D) Increases with the decrease in the porosity of the
soil
15. Select the incorrect statement.
- (A) In a direct shear box test, the plane of shear
failure is predetermined
- (B) Better control is achieved on the drainage of the
soil in a tri-axial compression test
- (C) Stress distribution on the failure plane in the
case of tri-axial compression test is uniform
- (D) Unconfined compression test can be carried out on
all types of soils
Next Tests: