NC General Contractors Exam (Review #2) UPDATED ACTUAL Questions and
CORRECT Answers
What is a positive grade and negative grade? Uphill slope and downhill slope
Blade capacity of dozer if the load is being pushed down-
Capacity if doubled
hill at 40%
If the dozer is on positive 40% slope, what is the blade
Cut in half, cut in half, double
capacity, production and production?
If the dozer is on negative 40% slope, what is the blade
Doubles, doubles, Cut in half
capacity, production and production?
The "A" blade or angled blade because the dozer can side
cast material in a "Windrow" and position it at 90* to
What is the most eflcient angle of the dozer blade and
the line of travel. The "S" blade or bull dozer allows the
why?
material to spill over each side making less eflcient than
"A" blade.
What is the best method of traflc control? Reflective barrels
Length (feet) x Width (feet) x Depth (feet)= Cubic Feet
Earthwork calculation formula...
then divide by 27 to get cubic yards.
When water flows down enough to allow suspended soil
What is sedimentation?
particles to settle
What would not be covered by the Sedimentation Pollu- Agricultural activities, forestry, mining, or emergency ac-
tion Control Act of 1973? tivities essential to protect human life.
Silt Fence used to control sedimentation
Design and performance standard of erosion control
run off of 10 year storm that produces peak rate of run off
measures shall provide protection from what?
When you are conducting land disturbing activity on a
When should you file a erosion and sedimentation control
tract which covers one or more acres. You must do this at
plan with the local government and how far in advance?
least 30 days prior to the start date.
The person financially responsible for the land disturbing
Who signs the erosion and sedimentation plan?
activity.
CORRECT Answers
What is a positive grade and negative grade? Uphill slope and downhill slope
Blade capacity of dozer if the load is being pushed down-
Capacity if doubled
hill at 40%
If the dozer is on positive 40% slope, what is the blade
Cut in half, cut in half, double
capacity, production and production?
If the dozer is on negative 40% slope, what is the blade
Doubles, doubles, Cut in half
capacity, production and production?
The "A" blade or angled blade because the dozer can side
cast material in a "Windrow" and position it at 90* to
What is the most eflcient angle of the dozer blade and
the line of travel. The "S" blade or bull dozer allows the
why?
material to spill over each side making less eflcient than
"A" blade.
What is the best method of traflc control? Reflective barrels
Length (feet) x Width (feet) x Depth (feet)= Cubic Feet
Earthwork calculation formula...
then divide by 27 to get cubic yards.
When water flows down enough to allow suspended soil
What is sedimentation?
particles to settle
What would not be covered by the Sedimentation Pollu- Agricultural activities, forestry, mining, or emergency ac-
tion Control Act of 1973? tivities essential to protect human life.
Silt Fence used to control sedimentation
Design and performance standard of erosion control
run off of 10 year storm that produces peak rate of run off
measures shall provide protection from what?
When you are conducting land disturbing activity on a
When should you file a erosion and sedimentation control
tract which covers one or more acres. You must do this at
plan with the local government and how far in advance?
least 30 days prior to the start date.
The person financially responsible for the land disturbing
Who signs the erosion and sedimentation plan?
activity.
