Questions in Soil Mechanics and Foundations - Engineering Preparation

51.    Physical properties of a permeant which influence permeability are
a)    viscosity only
b)    unit weight only
c)    both viscosity and unit weight
d)    none of the above
Ans:c

52.    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.
Ans:b

53.    Effective stress on soil
a)    increases voids ratio and decreases permeability
b)    increases both voids ratio and per-meability
c)    decreases both voids ratio and per-meability
d)    decreases voids ratio and increases permeability
Ans:c

54.    If the permeability of a soil is 0.8 mm/sec, the type of soil is
a)    gravel
b)    sand
c)    silt
d)    clay
Ans:b

55.    Which of the following methods is more suitable for the determination of permeability of clayey soil ?
a)    constant head method
b)    falling head method
c)    horizontal permeability test
d)    none of the above
Ans:b

56.    Which of the following methods is best suited for determination of permeability of coarsegrained soils ?
a)    constant head method
b)    falling head method
c)    both the above
d)    none of the above
Ans:a

57.    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%
Ans:b

58.    Coefficient of permeability of soil
a)    does not depend upon temperature
b)    increases with the increase in tempe-rature v
c)    increases with the decrease in tempe-rature
d)    none of the above
Ans:b

59.    The average coefficient of permeability of natural deposits
a)    parallel to stratification is always greater than that perpendicular to stratification
b)    parallel to stratification is always less than that perpendicular to stratifi-cation
c)    is always same in both directions
d)    parallel to stratification may or may not be greater than that perpendicular to stratification
Ans:a

60.    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
Ans:b
Read More Soil Mechanics and Foundation Engineering Questions:
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