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.Management Sciences
Category: Soil Mechanics and Foundation Engineering
Select the correct range of density index,ID ________________?
A. lD>0
B. ID>0
C. 0 < lD < 1
D. 0 < ID < 1
If the voids of a soil mass are full of air only, the soil is termed as_______________?
A. air entrained soil
B. partially saturated soil
C. dry soil
D. dehydrated soil
A fully saturated soil is said to be________________?
A. one phase system
B. two phase system with soil and air
C. two phase system with soil and water
D. three phase system
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________________?
A. 0.00018 nrVsec
B. 0.0045 m3/sec
C. 0.18m3/sec
D. 0.1125m3/sec
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
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