Practice Exercise for Lesson 3
PRACTICE EXERCISE FOR LESSON 3
Instructions
Check your understanding of Lesson 3 by completing the practice exercise. There is only one correct
answer to each question. Try to answer all of the questions without referring to the lesson material.
When you have completed all of the questions, turn the page and check your answers against the correct
response. Each correct response is referenced to specific portions of the lesson material so that you can
review any questions you have missed or do not understand.
1.
The ejection of water and soils through cracks caused by heavy axle loads, after free water has
collected under the pavement, is called
a.
frost boil.
b.
frost action.
c.
pavement pumping.
d.
soft and soupy conditions.
2.
Without exception, the thickness of pavement and non-frost-susceptible base can be no less than
a.
3 inches.
b.
6 inches.
c.
7 inches.
d.
9 inches.
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