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NC Building Level III Inspector Exam 2026
During installation of traffic loops in the pavement, which three
statements apply prior to and during the installation of loop wire?
(Choose 3).
a) Do not allow vehicular traffic over an open saw cut.
b) Do not overlap saw cuts at the corner.
c) Thoroughly clean the saw cut of foreign material.
d) Use a plastic sleeve where loop wire crosses a joint. - ANSWER -a) Do
not allow vehicular traffic over an open saw cut.
The contractor is installing a culvert with a 12-inch reinforced concrete
pipe ( outside diameter of 16.50 inches) from Sta 10+00, 40 feet Left to
STA 10+00, 65 feet Right on 4-inch bedding material. The 12-inch RCP
outlet is to be installed at Sta 10+00, 40 feet Left at an invert elevation
of 652.50.
If the conduit is installed at a 1.40% slope, what is the elevation of the
foundation grade at Sta 10+00, 45 feet Right?
a) 652.04
b) 653.17
c) 653.36
pg. 1
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d) 653.50 - ANSWER -?
On the reservoir side of a dam, erosion protection against wave action
should extend up the slope to at least which level?
a) crest of dam
b) maximum water elevation
c) minimum water elevation
d) two-thirds the height of the dam - ANSWER -b) maximum water
elevation
During stage construction while installing drainage, the contractor must
complete which two of the following tasks? (Choose two).
a) Bulk head the pipe until the system is complete.
b) Complete the entire system before it rains.
c) Maintain the existing drainage system until the new system is
functional.
d) Provide temporary connections as needed to maintain the existing
system. - ANSWER -c) Maintain the existing drainage system until the
new system is functional.
pg. 2
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After flushing but before connecting a new main to the existing system,
what test does an inspector need to verify before placing the main into
service?
a) bacteriological testing
b) cover testing
c) deflection testing
d) pressure testing - ANSWER -d) pressure testing
Which three types of inspections are completed for sign structures?
(Choose three).
a) final inspection
b) interim inspection
c) initial inspection
d) routine inspection - ANSWER -b) interim inspection
How many times per foot should loop lead-in wires be twisted?
a) 3 turns per foot
b) 5 turns per foot
c) 6 turns per foot
d) 7 turns per foot - ANSWER -b) 5 turns per foot
pg. 3
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Which phrase is true of test reports required for concrete sidewalks,
asphalt pavement, concrete curb, and pipe culverts for rest areas?
a) 50% required on roadway contracts
b) required for federal-aid projects only
c) same as roadway contracts
d) submitted in duplicate - ANSWER -?
According to FP-14, when removing existing concrete structure in the
roadbed, how many inches below the subgrade elevation should the
existing structure be removed to?
a) 12 inches
b) 24 inches
c) 30 inches
d) 36 inches - ANSWER -d) 36 inches
What does a white disk on the fire hydrant represent?
a) fire hydrant out of service
b) low pressure hydrant
c) wrong fire hydrant is in service
pg. 4
NC Building Level III Inspector Exam 2026
During installation of traffic loops in the pavement, which three
statements apply prior to and during the installation of loop wire?
(Choose 3).
a) Do not allow vehicular traffic over an open saw cut.
b) Do not overlap saw cuts at the corner.
c) Thoroughly clean the saw cut of foreign material.
d) Use a plastic sleeve where loop wire crosses a joint. - ANSWER -a) Do
not allow vehicular traffic over an open saw cut.
The contractor is installing a culvert with a 12-inch reinforced concrete
pipe ( outside diameter of 16.50 inches) from Sta 10+00, 40 feet Left to
STA 10+00, 65 feet Right on 4-inch bedding material. The 12-inch RCP
outlet is to be installed at Sta 10+00, 40 feet Left at an invert elevation
of 652.50.
If the conduit is installed at a 1.40% slope, what is the elevation of the
foundation grade at Sta 10+00, 45 feet Right?
a) 652.04
b) 653.17
c) 653.36
pg. 1
,2|Page
d) 653.50 - ANSWER -?
On the reservoir side of a dam, erosion protection against wave action
should extend up the slope to at least which level?
a) crest of dam
b) maximum water elevation
c) minimum water elevation
d) two-thirds the height of the dam - ANSWER -b) maximum water
elevation
During stage construction while installing drainage, the contractor must
complete which two of the following tasks? (Choose two).
a) Bulk head the pipe until the system is complete.
b) Complete the entire system before it rains.
c) Maintain the existing drainage system until the new system is
functional.
d) Provide temporary connections as needed to maintain the existing
system. - ANSWER -c) Maintain the existing drainage system until the
new system is functional.
pg. 2
,3|Page
After flushing but before connecting a new main to the existing system,
what test does an inspector need to verify before placing the main into
service?
a) bacteriological testing
b) cover testing
c) deflection testing
d) pressure testing - ANSWER -d) pressure testing
Which three types of inspections are completed for sign structures?
(Choose three).
a) final inspection
b) interim inspection
c) initial inspection
d) routine inspection - ANSWER -b) interim inspection
How many times per foot should loop lead-in wires be twisted?
a) 3 turns per foot
b) 5 turns per foot
c) 6 turns per foot
d) 7 turns per foot - ANSWER -b) 5 turns per foot
pg. 3
, 4|Page
Which phrase is true of test reports required for concrete sidewalks,
asphalt pavement, concrete curb, and pipe culverts for rest areas?
a) 50% required on roadway contracts
b) required for federal-aid projects only
c) same as roadway contracts
d) submitted in duplicate - ANSWER -?
According to FP-14, when removing existing concrete structure in the
roadbed, how many inches below the subgrade elevation should the
existing structure be removed to?
a) 12 inches
b) 24 inches
c) 30 inches
d) 36 inches - ANSWER -d) 36 inches
What does a white disk on the fire hydrant represent?
a) fire hydrant out of service
b) low pressure hydrant
c) wrong fire hydrant is in service
pg. 4
