Practice Test: Question Set - 17
1. Compressibility of sandy soils is
- (A) Almost equal to that of clayey soils
- (B) Much greater than that of clayey soils
- (C) Much less than that of clayey soils
- (D) None of the above
2. Depending upon the properties of a material, the failure envelope may
- (A) Be either
straight or curved
- (B) Pass
through the origin of stress
- (C) Intersect
the shear stress axis
- (D) All
the above
3. The maximum pressure which a soil can carry without shear failure, is called
- (A) Safe
bearing capacity
- (B) Net
safe bearing capacity
- (C) Net
ultimate bearing capacity
- (D) Ultimate
bearing capacity
4. In a deposit of normally consolidated clay
- (A) Effective stress increases with depth but water
content of soil and undrained strength decrease with depth
- (B) Effective stress and water content increase
with depth but undrained strength decreases with depth
- (C) Effective stress and undrained strength
increase with depth but water content decreases with depth
- (D) Effective stress, water content and
undrained strength decrease with depth
5. A moist soil sample weighing 108 g has a volume of 60 cc. If water content is 25% and value of G = 2.52, the void ratio is
- (A) 0.55
- (B) 0.65
- (C) 0.75
- (D) 0.80
6. For slopes of limited extent the surface of slippage, is usually along
- (A) A parabolic
arc
- (B) An
elliptical arc
- (C) A
straight line
- (D) A circular
arc
7. A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant active earth pressure will act at a distance of 2 m above the base and inclined to the horizontal at an angle of
- (A) 7°
- (B) 10°
- (C) 12°
- (D) 17°
8. The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known
- (A) Liquid limit
- (B) Plastic
limit
- (C) Shrinkage
limit
- (D) Permeability
limit
9. Valid range for S, the degree of saturation of soil in percentage is
- (A) S > 0
- (B) S < 0
- (C) 0
- (D) 0 < S < 100
10. The minimum water content at which the soil retains its liquid state and also possesses a small shearing strength against flowing, is known
- (A) Liquid limit
- (B) Plastic
limit
- (C) Shrinkage
limit
- (D) Permeability
limit
11. 'Drift' is the material picked up, mixed, disintegrated, transported and redeposited by
- (A) Wind
- (B) Gravitational
force
- (C) Glaciated
water
- (D) All the
above
12. The ratio of volume of voids to the total volume of soil mass is called
- (A) Air content
- (B) Porosity
- (C) Percentage air voids
- (D) Voids ratio
13. 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
14. The specific yield of soil depends upon
- (A) Compaction
of stratum
- (B) Distribution
of pores
- (C) Shape
and size of particles
- (D) All
the above
15. The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in
- (A) The principle of test
- (B) The method of taking observations
- (C) The method of preparation of soil suspension
- (D) All of the above