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LADOTD DENSITY TESTING FOR EMBANKMENT AND BASE COURSE QUESTIONS & ANSWERS VERIFIED 100% CORRECT!!
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LADOTD DENSITY TESTING FOR EMBANKMENT AND BASE COURSE QUESTIONS & ANSWERS VERIFIED 100% CORRECT!!
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LADOTD DENSITY TESTINGFOR EMBANKMENT AND
BASE COURSE QUESTIONS &
ANSWERS VERIFIED 100%
CORRECT!!
LADOTD DENSITY TESTING FOR EMBANKMENT AND BASE COURSE
LADOTD DENSITY TESTING FOR
Evatee 8/27/24 EMBANKMENT AND BASE
COURSE
,LADOTD DENSITY TESTING FOR
EMBANKMENT AND BASE COURSE
QUESTIONS & ANSWERS VERIFIED 100%
CORRECT!!
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
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
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 zone
would the point fall? (V-21,22,23) Answer - Zone 24
Since the test counts for density and moisture represent the material at the
time of test, the resulting density is referred to as wet density. The dry density
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