Lesson 7/Practice Exercise
PRACTICE EXERCISE FOR LESSON 7
Instructions
Check your understanding of Lesson 7 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 materials.
When you have completed all of the questions, turn the page and check your answers against the
correct responses. 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, before continuing to
the next lesson.
When you have completed all seven lessons and your review, you can continue to the
examination.
1.
What would frost action cause in a bituminous surface?
a.
heaves in the surface
b.
failure of the asphalt
c.
rounding of the aggregate
d.
smoothing of the aggregate
2.
What is the best way to keep pavement foundations dry?
a.
Construct foundation on a down slope.
b.
Install complete drainage system.
c.
Increase thickness of the subgrade.
d.
Decrease the thickness of the base course.
3.
What is the cause of surface ravelling in a pavement?
a.
excess water on the surface
b.
lack of rounded aggregate
c.
insufficient asphalt
d.
excess asphalt binder
4.
What would cause bleeding in a surface pavement?
a.
moisture
b.
excess asphalt
c.
insufficient asphalt
d.
lack of bond between layers
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