INTERNACHI HOW TO PERFORM
RESIDENTIAL ELECTRICAL
INSPECTIONS EXAM
Ampacity - Correct Answers -The maximum current in amps that a conductor can carry
without exceeding its maximum temperature rating.
AFCI - Correct Answers -Arc-Fault Circuit Interrupter AFCI is a device that provides
protection from the effects of arc-faults by recognizing arcing and deenergizing the
circuit when an arc-fault is detected.
AWG - Correct Answers -American wire gauge (AWG) is a standardized wire gauge
system used since 1857 predominantly in North America for the diameters of round,
solid, nonferrous, electrically conducting wire. The cross-sectional area of each gauge is
an important factor for determining its current-carrying capacity. Increasing gauge
numbers denote decreasing wire diameters.
The volume of the _____ (the number of electrons flowing past a given point per
second) is measured in amperes, or Amps. - Correct Answers -current
Wiring closer than ______ to the front of a stud should have protection. - Correct
Answers -1-1/4 inches
T/F: Wire splices are not necessarily considered electrical panel defects. - Correct
Answers -True
The original installation in most homes constructed between 1930 and 1950 was a
______ service. - Correct Answers -60-amp
_____ is the amount of work that the electrical flow can do. This is expressed as watts
or kilowatts (1,000 watts). - Correct Answers -Power
A _____ - amp service cable will usually be labeled 4/0 AWG for aluminum conductors.
- Correct Answers -200
The earliest type of residential wiring, sometimes still observed at older homes, is
________ wiring. - Correct Answers -knob-and-tube
, The recommended clearance for a service drop near a swimming pool should be _____
away. - Correct Answers -22-1/2 feet above and 10 feet horizontally
Because there are also small gaps between the strands, a ________ ______ will
always have a slightly larger overall diameter than a solid wire with the same AWG. -
Correct Answers -stranded wire
Bonded - Correct Answers -Connected to establish electrical continuity and conductivity.
Branch Circuit - Correct Answers -A branch circuit are the conductors between the final
overcurrent device protecting the circuit and the outlet(s).
A _____ _____ is a device designed to open and close a circuit by non-automatic
means and to open the circuit automatically when there's an overcurrent. - Correct
Answers -Circuit Breaker
Current - Correct Answers -Rate of flow of electricity through a conductor. Current is
measured in amps.
Device - Correct Answers -A unit of an electrical system, other than a conductor, that is
intended to carry or control but not utilize electricity. Examples of devices are switches
and thermostats.
Disconnecting Means - Correct Answers -A device by which the conductors of a circuit
can be disconnected from their source of supply.
Feeder - Correct Answers -The feeder is a circuit of conductors between the service
equipment and the final overcurrent device. Circuits feeding subpanels are called
feeders. The conductors between two overcurrent devices are called feeder conductors.
kcmil - Correct Answers -In North America, conductors larger than 4/0 AWG are
generally identified by the area in thousands of circular mils (kcmil), where 1 kcmil =
0.5067 mm². The next wire size larger than 4/0 has a cross section of 250 kcmil.
GFCI - Correct Answers -Ground-Fault Circuit-Interrupter GFCI is a device that protects
a person by deenergizing a circuit when a current to ground exceeds the value for the
device.
Line - Correct Answers -Line refers to the INCOMING power. The line side of the
equipment will be where the source of the power is terminated.
Load - Correct Answers -Load refers to the OUTGOING power.
Outlet - Correct Answers -An outlet is a point on the wiring system where current is
taken to supply equipment. Examples of an outlet are receptacles, light fixtures, smoke
RESIDENTIAL ELECTRICAL
INSPECTIONS EXAM
Ampacity - Correct Answers -The maximum current in amps that a conductor can carry
without exceeding its maximum temperature rating.
AFCI - Correct Answers -Arc-Fault Circuit Interrupter AFCI is a device that provides
protection from the effects of arc-faults by recognizing arcing and deenergizing the
circuit when an arc-fault is detected.
AWG - Correct Answers -American wire gauge (AWG) is a standardized wire gauge
system used since 1857 predominantly in North America for the diameters of round,
solid, nonferrous, electrically conducting wire. The cross-sectional area of each gauge is
an important factor for determining its current-carrying capacity. Increasing gauge
numbers denote decreasing wire diameters.
The volume of the _____ (the number of electrons flowing past a given point per
second) is measured in amperes, or Amps. - Correct Answers -current
Wiring closer than ______ to the front of a stud should have protection. - Correct
Answers -1-1/4 inches
T/F: Wire splices are not necessarily considered electrical panel defects. - Correct
Answers -True
The original installation in most homes constructed between 1930 and 1950 was a
______ service. - Correct Answers -60-amp
_____ is the amount of work that the electrical flow can do. This is expressed as watts
or kilowatts (1,000 watts). - Correct Answers -Power
A _____ - amp service cable will usually be labeled 4/0 AWG for aluminum conductors.
- Correct Answers -200
The earliest type of residential wiring, sometimes still observed at older homes, is
________ wiring. - Correct Answers -knob-and-tube
, The recommended clearance for a service drop near a swimming pool should be _____
away. - Correct Answers -22-1/2 feet above and 10 feet horizontally
Because there are also small gaps between the strands, a ________ ______ will
always have a slightly larger overall diameter than a solid wire with the same AWG. -
Correct Answers -stranded wire
Bonded - Correct Answers -Connected to establish electrical continuity and conductivity.
Branch Circuit - Correct Answers -A branch circuit are the conductors between the final
overcurrent device protecting the circuit and the outlet(s).
A _____ _____ is a device designed to open and close a circuit by non-automatic
means and to open the circuit automatically when there's an overcurrent. - Correct
Answers -Circuit Breaker
Current - Correct Answers -Rate of flow of electricity through a conductor. Current is
measured in amps.
Device - Correct Answers -A unit of an electrical system, other than a conductor, that is
intended to carry or control but not utilize electricity. Examples of devices are switches
and thermostats.
Disconnecting Means - Correct Answers -A device by which the conductors of a circuit
can be disconnected from their source of supply.
Feeder - Correct Answers -The feeder is a circuit of conductors between the service
equipment and the final overcurrent device. Circuits feeding subpanels are called
feeders. The conductors between two overcurrent devices are called feeder conductors.
kcmil - Correct Answers -In North America, conductors larger than 4/0 AWG are
generally identified by the area in thousands of circular mils (kcmil), where 1 kcmil =
0.5067 mm². The next wire size larger than 4/0 has a cross section of 250 kcmil.
GFCI - Correct Answers -Ground-Fault Circuit-Interrupter GFCI is a device that protects
a person by deenergizing a circuit when a current to ground exceeds the value for the
device.
Line - Correct Answers -Line refers to the INCOMING power. The line side of the
equipment will be where the source of the power is terminated.
Load - Correct Answers -Load refers to the OUTGOING power.
Outlet - Correct Answers -An outlet is a point on the wiring system where current is
taken to supply equipment. Examples of an outlet are receptacles, light fixtures, smoke
