Lesson 5/Practice Exercise
PRACTICE EXERCISE FOR LESSON 5
Instructions
Check your understanding of Lesson 5 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.
1.
What are the three types of aggregate based on particle size?
a.
light, medium, and heavy
b.
coarse, fine, and mineral filler
c.
dry, wet, and open gradation
d.
uniform, macadam, and dense
2.
How many types of aggregate gradations are there?
a.
1
b.
2
c.
3
d.
4
3.
The selection of the gradation specification is based on
a.
use of the mix and type of binder.
b.
thickness of the surface and type of spreader
c.
type of spreader and use of the asphalt
d.
thickness of the binder and the type of asphalt distributor
4.
The maximum size of aggregate based on
a.
type of surface and condition of base course
b.
location of pavement, and type of equipment available
c.
maximum size in stockpiles and thickness of pavement course
d.
maximum surface course placed with a mechanical spreader and type binder
5.
What action is taken when the selected blend does not meet the desired blend?
a.
redesign the desired blend
b.
conduct another trial
c.
select additional coarse aggregate
d.
add a larger percent of binder
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