Sensitivity of a soil can be defined as
A). percentage of volume change of soil under saturated condition
B). ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
C). ratio of volume of voids to volume of solids
D). none of the above
At liquid limit, all soils possess
A). same shear strength of small magnitude
B). same shear strength of large magnitude
C). different shear strengths of small magnitude
D). different shear strengths of large magnitude
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
A). increases by 25%
B). increases by 50%
C). increases by 33.3%
D). decreases by 33.3%
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively
A). zero and zero
B). 0.5 kg/cm² and zero
C). 0.5 kg/cm² and 0.5 kg/cm²
D). 1.0 kg/cm² and 0.5 kg/cm²
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°