North Carolina Residential Contractor's License
Practice Exam Questions and Answers PART 1 Civil
Engineering
All of the following are considered general conditions that could affect
costs directly associated with a specific project EXCEPT
ANSWERS: profit margin
What is the minimum depth of a trench excavation in which a ladder is
required to be provided? (OSHA "Excavations / Specific Excavation
Requirements / Access and Egress")
ANSWERS: 4 feet (OSHA 1926.651(c)(2) "Excavations /Specific Excavation
Requirements / Access and Egress")
A concrete masonry foundation wall extends below grade and will
require large coating using Portland cement mortar. What is the
minimum allowable thickness?
ANSWERS: 3/8 inch
,Before excavating for a new building, how should subsoil conditions be
determined?
ANSWERS: conducting test borings
In which direction should drywall be fastened to steel studs?
ANSWERS: in one direction only
What type fastener is NOT allowed when working above grade or below
grade on wood foundations?
ANSWERS: Electrogalvanized steel
A positive drainage slope away from a house foundation of 5% is equal
to which of the following? (NC Residential Code 2018 "Foundations /
General / Drainage)
ANSWERS: 6-inch drop in 10 feet (NC Residential Code 2018 R401.3
"Foundations / General / Drainage)
In general, what is the MINIMUM concrete covering for steel
reinforcement in a footing?
ANSWERS: 3 inches
,What is the amount of soil (in cubic yards) that should be removed from
a 2' X 300' X 4' building trench excavation?
ANSWERS: 89 cubic yards
What is the MINIMUM grade fall away from foundation walls?
ANSWERS: 6 inches within the first 10 feet.
A topographical map is being used to determine cut and fill
requirements. The contour interval is 2 feet. Across a distance of 200 feet
there are 10 contours. What is the slope of the grade?
ANSWERS: 0.417
What is the minimum slope for a swale if it is located within 10 feet of a
foundation and is used as part of the method for diverting water from
the foundation?
ANSWERS: 0.02
A concrete masonry foundation wall extends below grade and will
require parge coating using Portland cement mortar. What is the
minimum allowable thickness?
ANSWERS: 3/8 inch
, What is the MINIMUM thickness allowed for concrete slab on ground
floors?
ANSWERS: 3.5 inches
What is the allowable MINIMUM specified compressive strength for
concrete in foundation NOT exposed to weather?
ANSWERS: 2,500 psi
What is MINIMUM compressive strength for concrete used in a
foundation wall that will be exposed to weather?
ANSWERS: 2,500 psi
What is the minimum requirement for the compressive strength of
concrete used in a garage floor in a severe exposure area?
ANSWERS: 3,500 psi
How MUST rafters be framed to each other (NC Residential Code 2018
"Roof Ceiling Construction / Wood Roof Framing / Framing Details")
ANSWERS: With a gusset plate (NC Residential Code 2018 "R802.3
Roof Ceiling Construction / Wood Roof Framing / Framing Details")
Practice Exam Questions and Answers PART 1 Civil
Engineering
All of the following are considered general conditions that could affect
costs directly associated with a specific project EXCEPT
ANSWERS: profit margin
What is the minimum depth of a trench excavation in which a ladder is
required to be provided? (OSHA "Excavations / Specific Excavation
Requirements / Access and Egress")
ANSWERS: 4 feet (OSHA 1926.651(c)(2) "Excavations /Specific Excavation
Requirements / Access and Egress")
A concrete masonry foundation wall extends below grade and will
require large coating using Portland cement mortar. What is the
minimum allowable thickness?
ANSWERS: 3/8 inch
,Before excavating for a new building, how should subsoil conditions be
determined?
ANSWERS: conducting test borings
In which direction should drywall be fastened to steel studs?
ANSWERS: in one direction only
What type fastener is NOT allowed when working above grade or below
grade on wood foundations?
ANSWERS: Electrogalvanized steel
A positive drainage slope away from a house foundation of 5% is equal
to which of the following? (NC Residential Code 2018 "Foundations /
General / Drainage)
ANSWERS: 6-inch drop in 10 feet (NC Residential Code 2018 R401.3
"Foundations / General / Drainage)
In general, what is the MINIMUM concrete covering for steel
reinforcement in a footing?
ANSWERS: 3 inches
,What is the amount of soil (in cubic yards) that should be removed from
a 2' X 300' X 4' building trench excavation?
ANSWERS: 89 cubic yards
What is the MINIMUM grade fall away from foundation walls?
ANSWERS: 6 inches within the first 10 feet.
A topographical map is being used to determine cut and fill
requirements. The contour interval is 2 feet. Across a distance of 200 feet
there are 10 contours. What is the slope of the grade?
ANSWERS: 0.417
What is the minimum slope for a swale if it is located within 10 feet of a
foundation and is used as part of the method for diverting water from
the foundation?
ANSWERS: 0.02
A concrete masonry foundation wall extends below grade and will
require parge coating using Portland cement mortar. What is the
minimum allowable thickness?
ANSWERS: 3/8 inch
, What is the MINIMUM thickness allowed for concrete slab on ground
floors?
ANSWERS: 3.5 inches
What is the allowable MINIMUM specified compressive strength for
concrete in foundation NOT exposed to weather?
ANSWERS: 2,500 psi
What is MINIMUM compressive strength for concrete used in a
foundation wall that will be exposed to weather?
ANSWERS: 2,500 psi
What is the minimum requirement for the compressive strength of
concrete used in a garage floor in a severe exposure area?
ANSWERS: 3,500 psi
How MUST rafters be framed to each other (NC Residential Code 2018
"Roof Ceiling Construction / Wood Roof Framing / Framing Details")
ANSWERS: With a gusset plate (NC Residential Code 2018 "R802.3
Roof Ceiling Construction / Wood Roof Framing / Framing Details")
