LADOTD DENSITY TESTING FOR
EMBANKMENT AND BASE TEST
COURSE EXAM
the ________ is the support, or foundation for
the entire pavement structure. - answer-
embankment
To find the maximum dry density and optimum
moisture from the Family of Curves, look at
__________. (V-23) - answer-the chart in the
upper right hand corner
When a gamma ray enters a layer of material
____________________. (VII-15) - answer-
the energy may be absorbed by the material.; it
may be deflected or "scattered" in the material; it
,may penetrate or pass through the material
without being absorbed, scattered or transmitted.
Electromagnetic radiation emanating from the
nucleus of an atom is called _______________.
(VII-14) - answer-photon radiation and gamma
radiation
Gamma rays emitted from the source of the
nucler device are picked up by the __________.
(VII-18) - answer-Geiger-Muller tubes
The mass of solids divided by the total volume
(Ms/Vt=) equals ____________. (III-8) -
answer-dry density (DD)
,Name three parts of a pavement structure. -
answer-the embankment, the base course, the
surface course
Between each of the curves on the Family of
Curves there is a shaded area. If the point falls
below the shaded area, this means that the
moisture content of the soil is not high enough.
What should you do? (V-20) - answer-repeat the
test with a fresh sample of the same material at a
higher moisture content
There is a direct correlation between the slow
neutron count and the __________. (VII-21) -
answer-moisture content
An example of a fine grained soil is ________.
(III-15) - answer-clay
, To check the accuracy of your moisture readings
from the nuclear guage or when you notice any
changes in the material or its apparent moisture
content you should ____________. (VII22) -
answer-perform DOTD TR 403
One method of judging soil texture in the field is
by __________. (III-17) - answer-forming a cast
of soil in the hand
The ______ carries the traffic load and
distributes traffic weight to the embankment. -
answer-base course
Look at the Family of Curves in Appendix E. If
the moisture content of the material is 24% and
the wet density of 1850kg/M cubed, into which
EMBANKMENT AND BASE TEST
COURSE EXAM
the ________ is the support, or foundation for
the entire pavement structure. - answer-
embankment
To find the maximum dry density and optimum
moisture from the Family of Curves, look at
__________. (V-23) - answer-the chart in the
upper right hand corner
When a gamma ray enters a layer of material
____________________. (VII-15) - answer-
the energy may be absorbed by the material.; it
may be deflected or "scattered" in the material; it
,may penetrate or pass through the material
without being absorbed, scattered or transmitted.
Electromagnetic radiation emanating from the
nucleus of an atom is called _______________.
(VII-14) - answer-photon radiation and gamma
radiation
Gamma rays emitted from the source of the
nucler device are picked up by the __________.
(VII-18) - answer-Geiger-Muller tubes
The mass of solids divided by the total volume
(Ms/Vt=) equals ____________. (III-8) -
answer-dry density (DD)
,Name three parts of a pavement structure. -
answer-the embankment, the base course, the
surface course
Between each of the curves on the Family of
Curves there is a shaded area. If the point falls
below the shaded area, this means that the
moisture content of the soil is not high enough.
What should you do? (V-20) - answer-repeat the
test with a fresh sample of the same material at a
higher moisture content
There is a direct correlation between the slow
neutron count and the __________. (VII-21) -
answer-moisture content
An example of a fine grained soil is ________.
(III-15) - answer-clay
, To check the accuracy of your moisture readings
from the nuclear guage or when you notice any
changes in the material or its apparent moisture
content you should ____________. (VII22) -
answer-perform DOTD TR 403
One method of judging soil texture in the field is
by __________. (III-17) - answer-forming a cast
of soil in the hand
The ______ carries the traffic load and
distributes traffic weight to the embankment. -
answer-base course
Look at the Family of Curves in Appendix E. If
the moisture content of the material is 24% and
the wet density of 1850kg/M cubed, into which
