Lesson 2/Practice Exercise
11.
When performing the dry strength test, if the sample cannot be broken with the thumb and
forefingers of both hands, you deduce that the soil probably
a.
is very highly plastic
b.
contains a preponderance of clay.
c.
is highly compressible.
d.
all of the above.
12.
If you rub dry __________ with a knife, you will leave a shiny spot.
a.
sand
b.
peat
c.
silt
d.
clay
13.
The test in the drawing helps evaluate the ___________.
a.
b.
grain size distribution
c.
moisture content
d.
undisturbed soil properties
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