NC General Contractors Exam
inspection dept performs the following inspections: 1. footing
2. under slab
3. foundation/ wood framing
4. rough-in
5. building framing
6. insulation
7. fire protection
8. final
exceptions to design professional seal requirement 1. family residence up to 8 attached units
2. a building used by a farmer (unless it involves the health or safety of the public)
3. an institutional or commercial bldg less than $90,000 or exceed 2500 sq ft.
4. reno which doesn't alter structural system, egress, or live/ dead load.
Name the parts of a reference stake
the distance shown on a reference stake is... the horizontal measurement of the distance from the hub to center line of the end of
the fill. Also called the "offset"
Slope= Rise divided by Run
What is angle of a 100% slope 45*
Which rock is the hardest to excavate or rip? Igneous Rock (or ignorant, hardheaded)
What is igneous rock formed from? Molten magma
Which rock is the easiest to excavate or rip? Sedimentary Rock
How is Sedimentary rock formed? formed from sediments being compressed by other overlying sediments or water
What is the level of underground water called? Water table
Does the water table vary? Yes, from season to season
What is the function of a well point system? used to lower the groundwater table in bad groundwater conditions
Ground water causes what 2 issues? 1. unstable soil that's dangerous to work in
2. impossible to backfill
Stuvia 2026-2027 | Latest Version
, NC General Contractors Exam
What is the optimum moisture content? The right amount of moisture for compaction to maximum density
What are the 3 methods of determining soil density? 1. Proctor test
2. Sand cone test
3. Nuclear Density test
Which of the 3 soil tests are the most advantageous and Nuclear density because soil samples are not taken from the site to perform the test
why? therefore it is a non- destructive test. Proctor and Sand Cone tests are "destructive"
When are Push Scrapers used? They are used on extremely large earth moving projects
A self loading scraper is commonly referred to as a what? a Pan
When the soil is muddy or hard a self loading scraper is being assissted by a dozer pushing on the blocks to the rear of the bowl.
more efficient when....
What is a positive grade and negative grade? Uphill slope and downhill slope
Blade capacity of dozer if the load is being pushed Capacity if doubled
downhill 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?
What is the most efficient angle of the dozer blade and The "A" blade or angled blade because the dozer can side cast material in a
why? "Windrow" and position it at 90* to the line of travel. The "S" blade or bull dozer
allows the material to spill over each side making less efficient than "A" blade.
What is the best method of traffic control? Reflective barrels
Earthwork calculation formula... Length (feet) x Width (feet) x Depth (feet)= Cubic Feet
then divide by 27 to get cubic yards.
What is sedimentation? When water flows down enough to allow suspended soil particles to settle
What would not be covered by the Sedimentation Pollution Agricultural activities, forestry, mining, or emergency activities essential to protect
Control Act of 1973? human life.
Stuvia 2026-2027 | Latest Version
inspection dept performs the following inspections: 1. footing
2. under slab
3. foundation/ wood framing
4. rough-in
5. building framing
6. insulation
7. fire protection
8. final
exceptions to design professional seal requirement 1. family residence up to 8 attached units
2. a building used by a farmer (unless it involves the health or safety of the public)
3. an institutional or commercial bldg less than $90,000 or exceed 2500 sq ft.
4. reno which doesn't alter structural system, egress, or live/ dead load.
Name the parts of a reference stake
the distance shown on a reference stake is... the horizontal measurement of the distance from the hub to center line of the end of
the fill. Also called the "offset"
Slope= Rise divided by Run
What is angle of a 100% slope 45*
Which rock is the hardest to excavate or rip? Igneous Rock (or ignorant, hardheaded)
What is igneous rock formed from? Molten magma
Which rock is the easiest to excavate or rip? Sedimentary Rock
How is Sedimentary rock formed? formed from sediments being compressed by other overlying sediments or water
What is the level of underground water called? Water table
Does the water table vary? Yes, from season to season
What is the function of a well point system? used to lower the groundwater table in bad groundwater conditions
Ground water causes what 2 issues? 1. unstable soil that's dangerous to work in
2. impossible to backfill
Stuvia 2026-2027 | Latest Version
, NC General Contractors Exam
What is the optimum moisture content? The right amount of moisture for compaction to maximum density
What are the 3 methods of determining soil density? 1. Proctor test
2. Sand cone test
3. Nuclear Density test
Which of the 3 soil tests are the most advantageous and Nuclear density because soil samples are not taken from the site to perform the test
why? therefore it is a non- destructive test. Proctor and Sand Cone tests are "destructive"
When are Push Scrapers used? They are used on extremely large earth moving projects
A self loading scraper is commonly referred to as a what? a Pan
When the soil is muddy or hard a self loading scraper is being assissted by a dozer pushing on the blocks to the rear of the bowl.
more efficient when....
What is a positive grade and negative grade? Uphill slope and downhill slope
Blade capacity of dozer if the load is being pushed Capacity if doubled
downhill 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?
What is the most efficient angle of the dozer blade and The "A" blade or angled blade because the dozer can side cast material in a
why? "Windrow" and position it at 90* to the line of travel. The "S" blade or bull dozer
allows the material to spill over each side making less efficient than "A" blade.
What is the best method of traffic control? Reflective barrels
Earthwork calculation formula... Length (feet) x Width (feet) x Depth (feet)= Cubic Feet
then divide by 27 to get cubic yards.
What is sedimentation? When water flows down enough to allow suspended soil particles to settle
What would not be covered by the Sedimentation Pollution Agricultural activities, forestry, mining, or emergency activities essential to protect
Control Act of 1973? human life.
Stuvia 2026-2027 | Latest Version
