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