Study Guide & Practice Exam (Latest 2026-2028)
Pass your state certification exam on the first attempt with this comprehensive study
guide for the North Carolina Electrical Inspector Level II credential. This high-yield
resource details commercial and industrial electrical installations, focusing heavily on
National Electrical Code (NEC) regulations, grounding/bonding requirements, and
hazardous locations. Eliminate testing anxiety and master advanced inspection
procedures using realistic practice questions modeled directly after the official NC Code
Officials Qualification Board blueprint
Neutral Wire - CORRECT ANSWER What is the most important wire running to your
house?
QUESTION : 120/240 VOLTS - CORRECT ANSWER What is the typical voltage for a
residential building?
QUESTION : Smoke Detectors - CORRECT ANSWER Per the NC SOP, home
inspectors are we required to test ALL ______
QUESTION : 6 feet - CORRECT ANSWER You must test the polarity and grounding of all
receptacles within ______ of interior plumbing fixtures
QUESTION : Conductors - CORRECT ANSWER Any material which allows its electrons
to move through
QUESTION : Non-conductors - CORRECT ANSWER Materials such as wood, rubber, or
plastic which do not allow electrons to move through
QUESTION : Returning to its source - CORRECT ANSWER How does an electrical
current complete its circuit?
,QUESTION : Load - CORRECT ANSWER What must a circuit have to be complete?
QUESTION : Neutral - CORRECT ANSWER On which wire does the current complete its
circuit by returning to its source?
QUESTION : Amps (AA) - CORRECT ANSWER Amount of electrical current
QUESTION : Voltage (VP) - CORRECT ANSWER Pressure behind the cirrent
QUESTION : Ohms (OR) - CORRECT ANSWER Resistance to current flow, generates
heat
QUESTION : Watts (Watt brothers are powerful) - CORRECT ANSWER The rate of
power
QUESTION : Watts - CORRECT ANSWER Amperage x Voltage =
QUESTION : The amount of heat generated quadruples - CORRECT ANSWER What
happens when you double the current of electricity?
QUESTION : Service Drop - CORRECT ANSWER The overhead conductors between
the utility electric supply system and the service point.
QUESTION : Service Lateral - CORRECT ANSWER The underground conductors
between the utility electric supply system and the service point.
QUESTION : Triplex Cable (2 hots & 1 neutral) - CORRECT ANSWER The type of cable
normally used as the service drop for a residential service entrance
,QUESTION : Service Point - CORRECT ANSWER The point of connection between the
wiring of the electric utility and the premises wiring
QUESTION : Weatherhead - CORRECT ANSWER Keeps water out of the wires
QUESTION : Drip loop - CORRECT ANSWER An intentional curve of the service
conductor to prevent water from entering the service head
QUESTION : Service entrance - CORRECT ANSWER The point of delivery of electricity
to a building by a public utility company
QUESTION : SE cable - CORRECT ANSWER Normally run down the house to the meter
housing
QUESTION : Style U - CORRECT ANSWER Service entrance cable with built in conduit
QUESTION : Style R - CORRECT ANSWER Service entrance cable used for major
appliances
QUESTION : Service Mast - CORRECT ANSWER Contains the wires that transfer power
from ultility service to your house
QUESTION : 10 feet - CORRECT ANSWER Service drop clearance for walkways,
patios, ground
QUESTION : 10 feet - CORRECT ANSWER Service drop clearance for balconies, decks,
porches
QUESTION : 12 feet - CORRECT ANSWER Service drop clearances for yards,
driveways
, QUESTION : 18 feet - CORRECT ANSWER Service drop clearances for roads
QUESTION : 3 feet - CORRECT ANSWER Service drop clearances for open windows
QUESTION : 22.5 feet - CORRECT ANSWER Service drop clearances for swimming
pools
QUESTION : 8 feet - CORRECT ANSWER You are inspecting a roof with a slope LESS
THAN 4:12. What is the required service drop clearance?
QUESTION : 3 feet - CORRECT ANSWER You are inspecting a roof with a slope
GREATER than 4:12. What is the required clearance for a service drop?
QUESTION : Larger / Smaller - CORRECT ANSWER Smaller current can use _______
wires, but larger current cannot use _______ wires
QUESTION : 18 inches below grade - CORRECT ANSWER At what depth should
service laterals be protected by metal conduit?
QUESTION : Nothing, the A/C unit is the one residential exeption - CORRECT ANSWER
The A/C unit max breaker is 25, but the panel box says 20. What do you report?
QUESTION : Main panel - CORRECT ANSWER Where is the one place grounds and
neutrals can meet?
QUESTION : One size larger - CORRECT ANSWER Stranded aluminum AWG on branch
circuits should be ___________ than copper for same amps
QUESTION : 6 throws - CORRECT ANSWER The maximum amount of hand
movements for the power to be cut off at the main