Practice Test: Question Set - 06
1. If the back fill is having a uniform surcharge of intensity ‘q’ per unit area, the lateral pressure will be
- (A) q times
the lateral pressure within the surface
- (B) 1/q times the lateral
pressure within the surface
- (C) Equal to a
fill of height Z equal to q/r, where r is
the density of the backfill
- (D) None of
these
2. The angle of internal friction of clays, is usually
- (A) 0° to 5°
- (B) 5° to 20°
- (C) 20° to 30°
- (D) 30° to 45°
3. Stoke's law is valid only if the size of particle is
- (A) Less than 0.0002 mm
- (B) Greater than 0.2 mm
- (C) Between 0.2 mm and 0.0002 mm
- (D) All of the above
4. Pick up the correct statement from the following:
- (A) When
stress decreases, void, ratio decreases
- (B) When
stress decreases, coefficient of permeability decreases
- (C) When
stress decreases, coefficient of volume change decreases
- (D) When
stress decreases void ratio, coefficients of permeability and volume change decrease
5. Pick up the correct statement applicable to plate load test
- (A) Width of the
test pit for plate load test is made five times the width of the plate
- (B) At
the centre of the test pit, a hole is dug out whose size is kept equal to the
size of the test plate
- (C) Bottom level
of the hole dug at the centre of the test pit, is kept at the level of the
actual formation
- (D) All the
above
6. Failure of a slope occurs only when total shear force is
- (A) Equal
to total shearing strength
- (B) Greater
than total shearing strength
- (C) Less than
total shearing strength
- (D) None of
these
7. If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in
- (A) Liquid state
- (B) Plastic state
- (C) Semisolid state
- (D) Solid state
8. Pick up the correct statement from the following:
- (A) The
permeability of the coarse-grained soils may be reduced by grouting
- (B) The
process of injecting fluids (i.e. grouts) into the pores space of
the soil is called grouting
- (C) The
grouting increases the soil strength
- (D) All the
above
9. Negative skin friction on piles
- (A) Is caused
due to relative settlement of the soil
- (B) Is
caused in soft clays
- (C) Decreases
the pile capacity
- (D) All of the
above
10. Select the correct statement.
- (A) A uniform soil has more strength and stability than
a nonuniform soil
- (B) A uniform soil has less strength and stability than
a nonuniform soil
- (C) Uniformity coefficient does not affect strength and
stability
- (D) Uniformity coefficient of a poorly graded soil is
more than that of a well graded soil
11. The slip at critical angle, is generally known
- (A) δ 1-line
- (B) Rupture
plane
- (C) Slip plane
- (D) All the
above
12. If a soil undergoes a change in shape and volume by application of external loads over it, but recovers its shape and volume immediately after removal of the load, the property of the soil is said to be
- (A) Resilience
of soils
- (B) Elasticity
of soils
- (C) Compressibility
of soils
- (D) None of
these
13. The water content in a soil sample when it continues to loose weight without loosing the volume, is called
- (A) Shrinkage
limit
- (B) Plastic
limit
- (C) Liquid limit
- (D) Semi-solid
limit
14. Effective stress is
- (A) The stress at particles contact
- (B) A physical parameter that can be measured
- (C) Important because it is a function of engineering
properties of soil
- (D) All of the above
15. The angle of internal friction is maximum for
- (A) Angular-grained
loose sand
- (B) Angular-grained
dense sand
- (C) Round-grained
dense sand
- (D) Round-grained
loose sand
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