Q.1
Toughness index is defined as the ratio of
Q.2
In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as
Q.3
A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is
Q.4
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
Q.5
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively
Q.6
Valid range for n, the percentage voids, is
Q.7
Rankine’s theory of earth pressure assumes that the back of the wall is
Q.8
Dispersed type of soil structure is an arrangement comprising particles having
Q.9
Physical properties of a permeant which influence permeability are
Q.10
Select the incorrect statement. Effective angle of shearing resistance
Q.11
Which of the following methods is best suited for determination of permeability of coarse-grained soils ?
Q.12
The value of compression index for a remoulded sample whose liquid limit is 50% is
Q.13
For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as
Q.14
The total discharge from two wells situated near to each other is
Q.15
Direct measurement of permeability of the specimen at any stage of loading can be made
Q.16
Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively.
If other things remain constant, the coefficient of permeability
Q.17
At liquid limit, all soils possess
Q.18
The most suitable method for drainage of fine grained cohesive soils is
Q.19
With the increase in the amount of compaction energy
Q.20
A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively
Q.21
If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are
Q.22
Unconfmed compressive strength test is
Q.23
The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is
Q.24
The average coefficient of permeability of natural deposits
Q.25
Within the consolidation process of a saturated clay
Q.26
Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by
Q.27
The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing
Q.28
Sensitivity of a soil can be defined as
Q.29
In a deposit of normally consolidated clay
Q.30
For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ?
0 h : 0 m : 1 s