SOIL MECHANICS AND FOUNDATION ENGINEERING MCQS SET 03

SOIL MECHANICS AND FOUNDATION ENGINEERING MCQS SET 03

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

2. According to Coulomb's wedge theory, the active earth pressure slides the wedge
A. down and outwards on a slip surface
B. up and inwards on a slip surface
C. horizontal upward and parallel to base
D. horizontal inward and parallel to base.
Answer: Option A
 

3. The Westergaard analysis is used for
A. sandy soils
B. cohesive soils
C. stratified soils
D. clayey soils.
Answer: Option C
 

4. The effective size of particles of soil is denoted by
A. D10
B. D20
C. D30
D. D60
Answer: Option A
 

5. Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is
A. 50%
B. 60%
C. 75%
D. 80%
Answer: Option C
 

6. The coefficient of compressibility of soil, is the ratio of
A. stress to strain
B. strain to stress
C. stress to settlement
D. rate of loading to that of settlement.
Answer: Option B
 

7. If the failure of a finite slope occurs through the toe, it is known as
A. slope failure
B. face failure
C. base failure
D. toe failure.
Answer: Option D
 

8. Rankine's theory of active earth pressure assumes
A. soil mass is homogeneous, dry and cohesionless
B. ground surface is a plane which may be horizontal or inclined
C. back of the wall is vertical and smooth
D. wall yields about the base
E. all the above.
Answer: Option E
 

9. The water content of soil is defined as the ratio of
A. volume of water to volume of given soil
B. volume of water to volume of voids in soil
C. weight of water to weight of air in voids
D. weight of water to weight of solids of given mass of soil.
Answer: Option D
 

10. Accurate determination of water content, is made by
A. calcium carbide method
B. sand bath method
C. alcohol method
D. oven-drying method.
Answer: Option D