201. The angle of internal friction of clays, is usually
0° to 5°
5° to 20°
20° to 30°
30° to 45°
Correct answer: (B) 5° to 20°
202. The angle of internal friction, is least for
Angular-grained loose sand
Angular -grained dense sand
Round-grained loose sand
Clays
Correct answer: (D) Clays
203. The angle that Coulomb's failure envelope makes with the horizontal is called
Cohesion
Angle of internal friction
Angle of repose
None of the above
Correct answer: (A) Cohesion
204. The area of cross-section 'A' at failure or during any stage of Triaxial Compression Test and its initial length (L) and volume (V), are related by the equation
A = (V + ΔV)/(L - ΔL)
A = (V - ΔV)/(V + ΔL)
A = (V - ΔV)/(L - ΔL)
A = (V + ΔV)/(L + ΔL)
Correct answer: (C) A = (V - ΔV)/(L - ΔL)
205. The average coefficient of permeability of natural deposits
Parallel to stratification is always greater than that perpendicular to stratification
Parallel to stratification is always less than that perpendicular to stratification
Is always same in both directions
Parallel to stratification may or may not be greater than that perpendicular to stratification
Correct answer: (A) Parallel to stratification is always greater than that perpendicular to stratification
206. The bearing capacity of a soil depends upon
Size of the particles
Shape of the particles
Cohesive properties of particles
All the above
Correct answer: (D) All the above
207. The capillary rise of water
Depends upon the force responsible
Increases as the size of the soil particles increases
Decreases as the size of the soil particles decreases
Is less in wet soil than in dry soil
Correct answer: (A) Depends upon the force responsible
208. The change of moisture content of soils, changes the
Value of the angle of repose
Amount of compaction required
Cohesive strength of soil
All the above
Correct answer: (D) All the above
209. The clay mineral with the largest swelling and shrinkage characteristics is