|
1) Allowable bearing pressure for a foundation depends upon_______________? a. allowable settlement only b. ultimate bearing capacity of soil only c. both allowable settlement and ultimate bearing capacity d. none of above
|
||||
|
2) Terzaghi’s general bearing capacity formula for a strip footing (C Nc + y D Nq + 0.5 Y NTB. gives______________? a. safe bearing capacity b. net safe bearing capacity c. ultimate bearing capacity d. net ultimate bearing capacity where C = unit cohesion
|
||||
|
3) In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be_________________? a. less than 300 mm b. between 300 mm and 750 mm c. between 750 mm and 1 m d. greater than 1 m
|
||||
|
4) A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesionless soil under an intensity of loading of 0.2 N/ram2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is_______________? a. 15 mm b. between 15 mm and 25 mm c. 25 mm d. greater than 25 mm
|
||||
|
5) Terzaghi’s bearing capacity factors Nc, Nq and Nr are functions of______________? a. cohesion only b. angle of internal friction only c. both cohesion and angle of internal friction d. none of the above
|
||||
|
6) The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing_______________? a. cohesion and effective angle of shearing resistance b. cohesion and effective unit weight of soil c. effective unit weight of soil and effective angle of shearing resistance d. effective angle of shearing resistance
|
||||
|
7) A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is___________________? a. 15 mm b. 30 mm c. 50 mm d. 167 mm
|
||||
|
8) Contact pressure beneath a rigid footing resting on cohesive soil is_________________? a. less at edges compared to middle b. more at edges compared to middle c. uniform throughout d. none of the above
|
||||
|
9) Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by________________? a. 25% b. 50% c. 75% d. 90%
|
||||
|
10) Select the incorrect statement ___? a. Bearing capacity of a soil depends upon the amount and direction of load b. Bearing capacity of a soil depends on the type of soil c. Bearing capacity of a soil depends upon shape and size of footing d. Bearing capacity of a soil is indepen-dent of rate of loading
|
||||
|
11) Select the incorrect statement ____? a. In a direct shear box test, the plane of shear failure is predetermined b. Better control is achieved on the drainage of the soil in a triaxial compression test c. Stress distribution on the failure plane in the case of triaxial compression test is uniform d. Unconfined compression test can be carried out on all types of soils
|
||||
|
12) Select the incorrect statement?
Effective angle of shearing resistance a. increases as the size of particles increases b. increases as the soil gradation im-proves c. is limited to a maximum value of 45° d. is rarely more than 30° for fine grained soil
|
||||
|
13) In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear________________? a. decreases b. increases c. remains unchanged d. first increases and then decreases
|
||||
|
14) Select the incorrect statement _____? a. Effective cohesion of a soil can never have a negative value b. Effective angle of internal friction for coarse grained soils is rarely below 30° c. Effective angle of internal friction for a soil increases as state of compact-ness increases d. Effective angle of internal friction is a complicated function of mineralogy and clay size content
|
||||
|
15) Select the correct statement ___? a. coefficient of compressibility of an over-consolidated clay is less than that of a normally consolidated clay b. coefficient of compressibility of an over-consolidated clay is greater than that of a normally consolidated clay c. coefficient of compressibility is cons-tant for any clay d. none of the above
|
||||
|
16) Select the correct statement ____? a. The greater the viscosity, the greater is permeability b. The greater the unit weight, the greater is permeability c. The greater the unit weight, the smaller is permeability d. Unit weight does not affect per-meability
|
||||
|
17) Select the correct statement _____? a. A uniform soil has more strength and stability than a non-uniform soil b. A uniform soil has less strength and stability than a non-uniform 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
|
||||
