NC CODE OFFICIALS QUALIFICATION
BOARD ELECTRICAL INSPECTOR LEVEL
II CERTIFICATION MATERIAL CORRECT
VERIFIED ANSWERS GRADE A+ STUDY
TOOL INSTANT DOWNLOAD
North Carolina Electrical Inspector Level II Examination
Material
1. A code official is inspecting a commercial kitchen installation.
Which of the following best describes the requirement for GFCI
protection on all 125-volt, single-phase, 15- and 20-ampere
receptacles?
A. Protection is only required if the receptacle is located within 6
feet of a sink.
B. Protection is required for all receptacles, whether or
not they are serving countertop surfaces.
C. Protection is only required for receptacles dedicated to portable
cooking appliances.
D. Protection is not required if the kitchen is equipped with an
automatic fire suppression system.
Correct Answer: : B
Rationale: According to the National Electrical Code (NEC)
Article 210, all 125-volt, single-phase, 15- and 20-ampere
receptacles installed in a commercial kitchen must have GFCI
protection, regardless of their proximity to sinks or countertops,
because of the presence of moisture and grounded surfaces.
2. During an inspection of a multi-family dwelling, the inspector
reviews the service-entrance conductors. What is the minimum
sizing required for the neutral conductor of a service supplying
household electric ranges?
A. It must be the same size as the ungrounded conductors in all
circumstances.
B. It can be further reduced to a minimum of 70 percent
of the load calculated for the ungrounded conductors.
, C. It can be reduced down to 50 percent of the total connected
lighting load.
D. It must never be smaller than 4 AWG copper under any load
profile.
Correct Answer: : B
Rationale: NEC Article 220 allows the feeder or service neutral
maximum demand load for electric ranges to be calculated at 70
percent of the ungrounded conductor demand load,
acknowledging that the maximum unbalanced neutral current
will not equal the maximum phase current.
3. While evaluating a Level II commercial modification, the inspector
checks a 480V, 3-phase service equipment enclosure. What is the
minimum clear working space depth required in front of the live
parts if the opposite wall is uninsulated concrete block?
A. 3.0 feet (914 mm)
B. 3.5 feet (1.07 m)
C. 4.0 feet (1.22 m)
D. 5.0 feet (1.52 m)
Correct Answer: : C
Rationale: This configuration represents Condition 2 (grounded
parts on the opposite side, as concrete block is considered
grounded). For nominal voltages to ground between 151V and
600V, NEC Table 110 mandates a minimum clear working depth
of 4.0 feet.
4. A new industrial facility utilizes Type MC cable for branch circuits.
Where must the cable be secured within a specified distance from
every outlet box, junction box, device box, or fitting?
A. Within 6 inches of each termination point.
B. Within 12 inches of each termination point.
C. Within 24 inches of each termination point.
D. Within 36 inches of each termination point.
Correct Answer: : B
Rationale: NEC Article 330 specifies that Type MC cable must
be supported and secured at intervals not exceeding 6 feet, and it
must be secured within 12 inches of every outlet box, junction box,
cabinet, or fitting.
,5. The inspector is checking a rigid metal conduit (RMC) run
containing four 4/0 AWG THHN copper conductors. What is the
maximum percentage of the total cross-sectional area of the
conduit that these conductors can occupy?
A. 31 percent
B. 40 percent
C. 53 percent
=D. 60 percent
Correct Answer: : B
Rationale: According to NEC Chapter 9, Table 1, for over two
conductors installed within any raceway, the maximum
allowable conduit fill factor is 40 percent of the total internal
cross-sectional area.
6. In a commercial auto repair garage, the inspector must identify the
boundaries of the Class I, Division 1 hazardous location. Where
floor area is unventilated, how far up from the floor does this
specific classification extend?
A. 18 inches above the floor level.
B. 24 inches above the floor level.
C. 36 inches above the floor level.
D. Up to the ceiling line of the pit area.
Correct Answer: : A
Rationale: NEC Article 511 dictates that in commercial garages
where hazardous volatile liquids or heavier-than-air gases are
handled, the entire floor area up to a height of 18 inches above the
floor is classified as a Class I, Division 2 location, unless it is
unventilated or below grade (such as pits), which can elevate risk
profiles.
7. What is the minimum size copper equipment grounding conductor
required for a branch circuit protected by a 40-ampere overcurrent
protective device?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
Correct Answer: : C
Rationale: Based on NEC Table 250, the minimum size for a
, copper equipment grounding conductor serving a circuit with a
40-ampere overcurrent device is 10 AWG.
8. The inspector observes liquidtight flexible nonmetallic conduit
(LFNC) installed outdoors for an air conditioning unit hookup.
What is the maximum length allowable for this flexible raceway
without a special engineering exception?
A. 3 feet
B. 6 feet
C. 10 feet
D. 15 feet
Correct Answer: : B
Rationale: NEC Article 356 specifies that the maximum length
of LFNC shall not exceed 6 feet unless longer lengths are essential
for flexibility and are specifically approved by the authority
having jurisdiction.
9. A 200-ampere commercial service utilizes a metal water pipe as
part of the grounding electrode system. What is the minimum size
of the copper grounding electrode conductor required to connect to
this water pipe?
A. 6 AWG
B. 4 AWG
C. 2 AWG
D. 1/0 AWG
Correct Answer: : B
Rationale: For a 200-ampere service using 3/0 AWG copper
service-entrance conductors, NEC Table 250 requires a minimum
of a 4 AWG copper grounding electrode conductor to the main
water pipe electrode.
10. While verifying a panelboard installation in a commercial
building, the inspector notes several multiwire branch circuits.
What structural rule applies to the disconnecting means for these
circuits?
A. It must simultaneously disconnect all ungrounded
conductors at the point of origin.
B. It must have separate handles without any connection ties.
C. It must disconnect the neutral conductor before the ungrounded
phases.
D. It can only be controlled by a remote-control shunt-trip system.
BOARD ELECTRICAL INSPECTOR LEVEL
II CERTIFICATION MATERIAL CORRECT
VERIFIED ANSWERS GRADE A+ STUDY
TOOL INSTANT DOWNLOAD
North Carolina Electrical Inspector Level II Examination
Material
1. A code official is inspecting a commercial kitchen installation.
Which of the following best describes the requirement for GFCI
protection on all 125-volt, single-phase, 15- and 20-ampere
receptacles?
A. Protection is only required if the receptacle is located within 6
feet of a sink.
B. Protection is required for all receptacles, whether or
not they are serving countertop surfaces.
C. Protection is only required for receptacles dedicated to portable
cooking appliances.
D. Protection is not required if the kitchen is equipped with an
automatic fire suppression system.
Correct Answer: : B
Rationale: According to the National Electrical Code (NEC)
Article 210, all 125-volt, single-phase, 15- and 20-ampere
receptacles installed in a commercial kitchen must have GFCI
protection, regardless of their proximity to sinks or countertops,
because of the presence of moisture and grounded surfaces.
2. During an inspection of a multi-family dwelling, the inspector
reviews the service-entrance conductors. What is the minimum
sizing required for the neutral conductor of a service supplying
household electric ranges?
A. It must be the same size as the ungrounded conductors in all
circumstances.
B. It can be further reduced to a minimum of 70 percent
of the load calculated for the ungrounded conductors.
, C. It can be reduced down to 50 percent of the total connected
lighting load.
D. It must never be smaller than 4 AWG copper under any load
profile.
Correct Answer: : B
Rationale: NEC Article 220 allows the feeder or service neutral
maximum demand load for electric ranges to be calculated at 70
percent of the ungrounded conductor demand load,
acknowledging that the maximum unbalanced neutral current
will not equal the maximum phase current.
3. While evaluating a Level II commercial modification, the inspector
checks a 480V, 3-phase service equipment enclosure. What is the
minimum clear working space depth required in front of the live
parts if the opposite wall is uninsulated concrete block?
A. 3.0 feet (914 mm)
B. 3.5 feet (1.07 m)
C. 4.0 feet (1.22 m)
D. 5.0 feet (1.52 m)
Correct Answer: : C
Rationale: This configuration represents Condition 2 (grounded
parts on the opposite side, as concrete block is considered
grounded). For nominal voltages to ground between 151V and
600V, NEC Table 110 mandates a minimum clear working depth
of 4.0 feet.
4. A new industrial facility utilizes Type MC cable for branch circuits.
Where must the cable be secured within a specified distance from
every outlet box, junction box, device box, or fitting?
A. Within 6 inches of each termination point.
B. Within 12 inches of each termination point.
C. Within 24 inches of each termination point.
D. Within 36 inches of each termination point.
Correct Answer: : B
Rationale: NEC Article 330 specifies that Type MC cable must
be supported and secured at intervals not exceeding 6 feet, and it
must be secured within 12 inches of every outlet box, junction box,
cabinet, or fitting.
,5. The inspector is checking a rigid metal conduit (RMC) run
containing four 4/0 AWG THHN copper conductors. What is the
maximum percentage of the total cross-sectional area of the
conduit that these conductors can occupy?
A. 31 percent
B. 40 percent
C. 53 percent
=D. 60 percent
Correct Answer: : B
Rationale: According to NEC Chapter 9, Table 1, for over two
conductors installed within any raceway, the maximum
allowable conduit fill factor is 40 percent of the total internal
cross-sectional area.
6. In a commercial auto repair garage, the inspector must identify the
boundaries of the Class I, Division 1 hazardous location. Where
floor area is unventilated, how far up from the floor does this
specific classification extend?
A. 18 inches above the floor level.
B. 24 inches above the floor level.
C. 36 inches above the floor level.
D. Up to the ceiling line of the pit area.
Correct Answer: : A
Rationale: NEC Article 511 dictates that in commercial garages
where hazardous volatile liquids or heavier-than-air gases are
handled, the entire floor area up to a height of 18 inches above the
floor is classified as a Class I, Division 2 location, unless it is
unventilated or below grade (such as pits), which can elevate risk
profiles.
7. What is the minimum size copper equipment grounding conductor
required for a branch circuit protected by a 40-ampere overcurrent
protective device?
A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
Correct Answer: : C
Rationale: Based on NEC Table 250, the minimum size for a
, copper equipment grounding conductor serving a circuit with a
40-ampere overcurrent device is 10 AWG.
8. The inspector observes liquidtight flexible nonmetallic conduit
(LFNC) installed outdoors for an air conditioning unit hookup.
What is the maximum length allowable for this flexible raceway
without a special engineering exception?
A. 3 feet
B. 6 feet
C. 10 feet
D. 15 feet
Correct Answer: : B
Rationale: NEC Article 356 specifies that the maximum length
of LFNC shall not exceed 6 feet unless longer lengths are essential
for flexibility and are specifically approved by the authority
having jurisdiction.
9. A 200-ampere commercial service utilizes a metal water pipe as
part of the grounding electrode system. What is the minimum size
of the copper grounding electrode conductor required to connect to
this water pipe?
A. 6 AWG
B. 4 AWG
C. 2 AWG
D. 1/0 AWG
Correct Answer: : B
Rationale: For a 200-ampere service using 3/0 AWG copper
service-entrance conductors, NEC Table 250 requires a minimum
of a 4 AWG copper grounding electrode conductor to the main
water pipe electrode.
10. While verifying a panelboard installation in a commercial
building, the inspector notes several multiwire branch circuits.
What structural rule applies to the disconnecting means for these
circuits?
A. It must simultaneously disconnect all ungrounded
conductors at the point of origin.
B. It must have separate handles without any connection ties.
C. It must disconnect the neutral conductor before the ungrounded
phases.
D. It can only be controlled by a remote-control shunt-trip system.
