Arizona (AZ) CR2 Excavating, Grading & Oil Surfacing Practice Exam

CR2 Excavating, Grading & Oil Surfacing
Practice Exam

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Terms in this set (270)

,Which of the following is the b) To create a solid foundation
primary purpose of excavation in
grading work?
a) To remove excess soil
b) To create a solid foundation
c) To prepare soil for compacting
d) To plant grass


What is the term used for the c) Compaction
process of compressing soil to
increase its density?
a) Excavation
b) Grading
c) Compaction
d) Backfilling

,What is the recommended b) 12-18%
moisture content for most soils
during the compaction process?
a) 5%
b) 12-18%
c) 30-40%
d) 50%


Which of the following equipment c) Vibratory roller
is typically used for compacting
soil in excavation projects?
a) Backhoe
b) Bulldozer
c) Vibratory roller
d) Grader

, What is the purpose of grading in b) To level or shape the ground surface
excavation work?
a) To remove excess water
b) To level or shape the ground
surface
c) To improve soil fertility
d) To add decorative features


What factor can negatively affect b) Low moisture content
compaction efforts?
a) High moisture content
b) Low moisture content
c) The use of a vibratory roller
d) Adding sand to the soil