SOIL MECHANICS AND FOUNDATION ENGINEERING MCQS SET 02

SOIL MECHANICS AND FOUNDATION ENGINEERING MCQS SET 02

1. Minimum size of the particles of silt soil, is
A. 0.002 mm
B. 0.04 mm
C. 0.06 mm.
D. 0.08 mm
E. 1 mm
Answer: Option A
 

2. The maximum value of effective stress in the past divided by the present value, is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is
A. less than 1
B. 1
C. more than 1
D. None of these.
Answer: Option C
 

3. Pick up the correct statement from the following :
A. To an agriculturist, soil is the substance existing on the earth's surface, which grows and develops plants
B. 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
C. To an engineer, soil is the unaggregated and uncemented deposits of minerals and organic particles covering the earth's crust
D. All the above.
Answer: Option D
 

4. The ratio of settlement at any time 't' to the final settlement, is known as
A. co-efficient of consolidation
B. degree of consolidation
C. consolidation index
D. consolidation of undisturbed soil.
Answer: Option B
 

5. Under-reamed piles are generally
A. driven piles
B. bored piles
C. precast piles
D. all the above.
Answer: Option B
 

6. Pick up the clay soil group which does not swell when wet from the following :
A. Kaolinite group
B. Illite group
C. Vermiculite group
D. Montrorillonite group.
Answer: Option B
 

7. Factor of safety against sliding of a slope, is the ratio of
A. actual cohesion to that required to maintain stability of slope
B. shear strength to shear stress along the surface
C. neither (a) nor (b)
D. both (a) and (b).
Answer: Option D
 

8. The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known
A. porosity
B. specific gravity
C. void ratio
D. water content.
Answer: Option C
 

9. A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm3. If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is
A. 11.1%
B. 55.6%
C. 69.6%
D. none of these.
Answer: Option B
 

10. A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation is
A. 20%
B. 77%
C. 92%
D. none of these.
Answer: Option C