Question: Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by________________?

• 1. 25%
• 2. 50%
• 3. 75%
• 4. 90%

Question: Select the incorrect statement?

• 1. Bearing capacity of a soil depends upon the amount and direction of load
• 2. Bearing capacity of a soil depends on the type of soil
• 3. Bearing capacity of a soil depends upon shape and size of footing
• 4. Bearing capacity of a soil is indepen-dent of rate of loading

Question: Select the incorrect statement ?

• 1. In a direct shear box test, the plane of shear failure is predetermined
• 2. Better control is achieved on the drainage of the soil in a triaxial compression test
• 3. Stress distribution on the failure plane in the case of triaxial compression test is uniform
• 4. Unconfined compression test can be carried out on all types of soils

Question: In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear________________?

• 1. decreases
• 2. increases
• 3. remains unchanged
• 4. first increases and then decreases

Question: Select the incorrect statement?

• 1. Effective cohesion of a soil can never have a negative value
• 2. Effective angle of internal friction for coarse grained soils is rarely below 30°
• 3. Effective angle of internal friction for a soil increases as state of compact-ness increases
• 4. Effective angle of internal friction is a complicated function of mineralogy and clay size content

Question: Select the correct statement?

• 1. coefficient of compressibility of an over-consolidated clay is less than that of a normally consolidated clay
• 2. coefficient of compressibility of an over-consolidated clay is greater than that of a normally consolidated clay
• 3. coefficient of compressibility is cons-tant for any clay
• 4. none of the above

Question: Select the correct statement?

• 1. The greater the viscosity, the greater is permeability
• 2. The greater the unit weight, the greater is permeability
• 3. The greater the unit weight, the smaller is permeability
• 4. Unit weight does not affect per-meability

Question: Select the correct statement?

• 1. A uniform soil has more strength and stability than a non-uniform soil
• 2. A uniform soil has less strength and stability than a non-uniform soil
• 3. Uniformity coefficient does not affect strength and stability
• 4. Uniformity coefficient of a poorly graded soil is more than that of a well graded soil

Question: Which of the following statements is correct ?

• 1. Uniformity coefficient represents the shape of the particle size distribution curve
• 2. For a well graded soil, both uniformity coefficient and coefficient of curvature are nearly unity
• 3. A soil is said to be well graded if it has most of the particles of about the same size
• 4. none of the above

Question: Select the correct statement?

• 1. Unit weight of dry soil is greater than unit weight of wet soil
• 2. For dry soils, dry unit weight is less than total unit weight
• 3. Unit weight of soil increases due to submergence in water
• 4. Unit weight of soil decreases due to submergence in water