Practice Test: Question Set - 16
1. Sedimentation analysis is based on the assumption:
- (A) Soil
particles are spherical
- (B) Particles
settle independent of other particles
- (C) Walls
of the jar do not affect the settlement
- (D) All
the above
2. A pycnometer is used to determine
- (A) Water content and voids ratio
- (B) Specific gravity and dry density
- (C) Water content and specific gravity
- (D) Voids ratio and dry density
3. The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated
- (A) Sands
- (B) Clays
- (C) Gravels
- (D) Highly
organic soils
4. The intensity of vertical pressure at a depth ‘Z’ directly below the point load ‘Q’ on its axis of loading is:
- (A) 0.4775 Q/Z
- (B) 0.4775 Q/Z2
- (C) 0.4775 Q/Z3
- (D) 0.4775 Q/√Z
5. When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as
- (A) Negative
- (B) Zero
- (C) Non-plastic (NP)
- (D) 1
6. Flow net is used for the determination of
- (A) Quantity
of seepage
- (B) Hydrostatic
pressure
- (C) Seepage
pressure
- (D) All
the above
7. The inventor of the term soil mechanics, was
- (A) Kray
- (B) Dr.
Karl Terzaghi
- (C) Leygue
- (D) Fellenius
8. Highway Research Board (HRB) classification of soils is based on
- (A) Particle size composition
- (B) Plasticity characteristics
- (C) Both particle size composition and plasticity
characteristics
- (D) None of the above
9. The fundamental equation of air content (ac), degree of saturation (Sr) and void ratio (e), is
- (A) ac = e (1 - Sr)/(1 - e)
- (B) ac = e (1 + Sr)/(1 + e)
- (C) ac = e (1 - Sr)/(1 + e)
- (D) ac = e (1 + Sr)/(1 - e)
10. Stoke's law does not hold good if the size of particle is smaller than
- (A) 0.0002 mm
- (B) 0.002 mm
- (C) 0.02 mm
- (D) 0.2 mm
11. Quick sand is a
- (A) Type of sand
- (B) Flow condition occurring in cohesive soils
- (C) Flow condition occurring in cohesion-less soils
- (D) Flow condition occurring in both cohesive and
cohesion-less soils
12. Pick up the correct statement from the following:
- (A) O.M.C.
refers to the moisture corresponding to the maximum point on the moisture
content dry density curve
- (B) The
line which shows moisture content dry density relation for soil containing a
constant percentage of air voids, is known as air void line
- (C) The free
fall of hammer for compaction is 30.5 cm
- (D) All the
above
13. A saturated soil sample has water content of 40% and specific gravity of soil particles 2.7. The void ratio of the soil, is
- (A) 0.4
- (B) 0.52
- (C) 1.08
- (D) None of
these
14. The total discharge from two wells situated near to each other is
- (A) Sum of the discharges from individual wells
- (B) Less than the sum of the discharges from individual
wells
- (C) Greater than the sum of the discharges from
individual wells
- (D) Equal to larger of the two discharges from
individual wells
15. A sample of saturated soil has 30% water content and the specific gravity of soil grains is 2.6. The dry density of the soil mass in g/cm3, is
- (A) 1.47
- (B) 1.82
- (C) 1.91
- (D) None of
these