GEO TERMS: CONSISTENCY OF SOIL Flashcards
if the material of the base of the Casagrande liquid 1limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then:
A. the liquid limit of soil always increases
B. the liquid limit of soil always decreases
C. the liquid limit of soil may increase
D. the liquid limit of soil may decrease
A. the liquid limit of soil always increases
pick up the correct statement from the following:
A. the range of water content between the liquid limit and plastic limit is called plasticity index
B. the ratio of the liquid limit minus the natural water content to the plasticity index of soils is called consistency index
C. the ratio of natural water content minus its plastic limit to its plasticity index is called liquidity index
D. all the above
D. all the above
pick up the correct statement from the following:
A. in soils, the flow index indicates variation in shear strength with water content
B. liquid limit minus plastic limit is known as plasticity index of the soil
C. plastic limit minus shrinkage limit is known as shrinkage index of the soil
D. all the above
D. all the above
the property of a soil which allows it to be deformed rapidly without rupture, elastic rebound and also a volume change is known _____
A. porosity
B. plasticity
C. permeability
d. ductility
B. plasticity
plasticity index is defined as the range of water content between _____
A. liquid and plastic limit
B. plastic limit and semi solid limit
C. semi-solid limit and liquid limit
D. liquid limit and solid limit
A. liquid and plastic limit
the admixture of coarser particles like sand or silt to clay causes _____
A. decrease in liquid limit and increase in plasticity index
B. decrease in liquid limit and no change in plasticity index
C. decrease in both liquid limit and plasticity index
D. increase in both liquid limit and plasticity index
C. decrease in both liquid limit and plasticity index
the water content in a soil sample when it continues to loose weight without loosing the volume is called _____
A. shrinkage limit
B. plastic limit
C. liquid limit
D. semi-solid limit
A. shrinkage limit
pick up the incorrect definition from the following:
A. ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil is known as the sensitivity of the soil sample
B. the rotation of soil particles into stable state while remoulding is known as the thiostropy of soil
C. the water content at which a soil flows is known plastic limit of the soil
D. none of these
D. none of these
if the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in _____
A. liquid state
B. plastic state
C. semisolid state
D. solid state
B. plastic state
the plasticity of fine soils may be assessed by means of _____
A. dry strength test
B. toughness test
C. dilatancy test
D. all of these
D. all of these
the water content of soil which represents the boundary between plastic state and liquid state is known as _____
A. liquid limit
B. plastic limit
C. shrinkage limit
D. plasticity index
A. liquid limit
the consistency index of a soil is defined as the ratio of _____
A. liquid limit plus the natural water content to the plasticity index of the soil
B. liquid limit minus the natural water content to the plasticity index of the soil
C. natural water content of a soil minus plastic limit to the plasticity index of the soil
D. natural water content of a soil plus its plastic limit to the plasticity index of the soil
B. liquid limit minus the natural water content to the plasticity index of the soil
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
B. zero
inorganic soils with low compressibility are represented by _____
A. MH
B. SL
C. ML
D. CH
C. ML
the minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter is known _____
A. liquid limit
B. plastic limit
C. shrinkage limit
D. permeability limit
B. plastic limit
