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.Management Sciences
Category: Soil Mechanics and Foundation Engineering
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 discharge from two wells situated near to each other is_________________?
A. sum of the discharges from individual wells
B. less than the sum of the discharges from individual wells
C. greater than the sum of the discharges from individual wells
D. equal to larger of the two discharges from individual wells
Bishop’s method of stability analysis_______________?
A. is more conservative
B. neglects the effect of forces acting on the sides of the slices
C. assumes the slip surface as an arc of a circle
D. all of the above
Coefficient of earth pressure at rest is__________________?
A. less than active earth pressure but greater than passive earth pressure
B. greater than active earth pressure but less than passive earth pressure
C. greater than both the active earth pressure and passive earth pressure
D. less than both the active and passive earth pressures
When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as_____________?
A. negative
B. zero
C. non-plastic (NP)
D. 1
If the shearing stress is zero on two planes, then the angle between the two planes is________________?
A. 45°
B. 90°
C. 135°
D. 225°
Coefficient of consolidation of a soil is affected by_______________?
A. compressibility
B. permeability
C. both compressibility and permeability
D. none of the above
Water content of soil can______________?
A. never be greater than 100 %
B. take values only from 0 % to 100 %
C. be less than 0 %
D. be greater than 100 %
For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as____________________?
A. dry of OMC and wet of OMC
B. wet of OMC and dry of OMC
C. wet of OMC and wet of OMC
D. dry of OMC and dry of OMC where OMC is optimum moisture content
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