Soil Mechanics and Foundation Engineering Quiz Questions - Set 06 - ObjectiveBooks
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# 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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