Lesson 2/Practice Exercise
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
is very highly plastic
contains a preponderance of clay.
is highly compressible.
all of the above.
If you rub dry __________ with a knife, you will leave a shiny spot.
The test in the drawing helps evaluate the ___________.
grain size distribution
undisturbed soil properties