CMP 305 Exam Questions and Answers
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Montmorillonite is known to have what properties? - high volume
changes and weak bonds
phase diagram displays what? - relationship between volume and
weight of a soil bunk
does clay absorb more or less water than other types of soils - ...
Montmorillonite is known to have what properties? - ✔✔high volume
changes and weak bonds
phase diagram displays what? - ✔✔relationship between volume and
weight of a soil bunk
does clay absorb more or less water than other types of soils - ✔✔more,
clay attracts water
when is angular-granular soil at its highest shear strength? - ✔✔when it is
in a dense condition and has a low void ratio
of the four soil groups which has the greatest expansive characteristics with
water? - ✔✔clay
load-ability - ✔✔measure of difficulty in excavating and loading a soil
what kind of soil has high load-ability - ✔✔loose, granular soil
what kind of soil has low load-ability? - ✔✔compacted (frost), clay, rock
, classification for a fine grained soil being a clay or silt is based on what? -
✔✔plasticity, not particle size
soil with best engineering properties? - ✔✔angular, high shear strength,
good distribution of particle sizes so they can be packed together
well graded soil - ✔✔Soil with a variety of particle sizes that tend to form a
denser structure
poor graded soil - ✔✔uniform particle sizes, can't be packed into eachother
the smaller the void ratio (denser the material) - ✔✔the greater the
compressive strength of the soil resulting in low compressibility of soil
spoil - ✔✔removed soil
coarse soil in loose condition (like after initial placement) is more likely to
have what if subject to vibration? - ✔✔quick volume reductions and loss of
strength
gap graded soil - ✔✔lots of large size particles and lots of small size
particles, no inbetween
is it better to have soil that is layered or mixed together? - ✔✔layered
coarse grained soil - ✔✔non-cohesive, sand and gravel
fine grained soil - ✔✔cohesive, clay and silt
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