PSI NATIONAL HOME INSPECTOR FINAL EXAM
SCRIPT 2026 COMPLETE QUESTIONS AND
SOLUTIONS
◉ American Wire Gauge (AWG) -an standard method of denoting the
diameter of electrically conducting wire
◉ Bonding -The process of connecting, both physically and electrically,
metal components of the electrical system that are not intended to carry
electrical current to provide a low resistance return path to the circuit
breaker or fuse to clear ground faults; bonding is an elecsafety system.
system.
◉ Branch Circuit -Conductors that begin at a circuit breaker or fuse and
serve one or more oulets.
◉ Branch Circuit, multiwire -A branch circuit in which two energized
conductors share one neutral, examples can include clothes dryers,
ranges and other cooking appliances, and split-wire receptacle circuits,
240 volt water heaters and condensers for air conditioners and heat
pumps are not usually branch circuits.
,◉ Bus (buss, busbar) -the heavy, rigid metal part of a panelboard on
which circuit breakers or fuses are mounted; sometimes used to describe
metal terminals to which the neutral and equipment grounding
conductors (EGCs) are connected.
◉ Cable -two or more conductors encased in sheathing; examples
include non-metallic sheathed cable (Brand Romex) and armored cable
(Brand BX)
◉ circuit breaker -overcurrent protection device (OPD)
◉ Conductor -a material, such as copper or aluminum, that permits
electricity to flow with low resistance, wires are conductors.
◉ Current -the amount of electricity in a circuit. Unit of measure is the
ampere (amp); expressed as I in Ohm's Law and Watt's Law equation.
◉ Dead front cover -a panel that is removed to gain access to the
energized components inside an enclosure; the dead front cover is
usually behind a door that must be swung or lifted to gain access to the
dead front cover.
◉ EGC -Equipment grounding conductor
,◉ Enclosure (electrical) -a case or cabinet intended to prevent accidental
contact with energized parts, a panelboard is housed inside an enclosure.
◉ Feeder conductors -conductors from the service equipment or from a
panelboard that supply electricity to another panelboard such as a
subpanel.
◉ Fuse -Overcurrent protection device (OPD)
◉ Grounded -a conductor that is intentionally connected to earth; this
describes what is often called the neutral conductor.
◉ grounding -providing an intentional connection to earth, grounding
provides an alternate path for current to return to its source; in an
electrical power system, the source is the utilities transformer and
ultimately power plant. See grounding electrode and grounding electrode
conductor (GEC).
◉ Grounding Conductor, Equipment (EGC) -a bare or insulated
conductor that provides a ground fault current path (a bonding
connection) for equipment with metal cases and parts; these have been
installed in most house branch circuit wiring since around 1960.
◉ grounding electrode -metal that is in direct contact with the earth and
serves as the electrical system grounding connection; examples include
, copper coated steel rods, galvanized steel pipes, water service and well
pipes, and reinforcing steel encased footings.
◉ grounding electrode conductor (GEC) -a conductor that runs between
the grounding electrode and an accessible point downstream from where
the grounded service entrance conductor connects to the service drop or
lateral; the GEC connection is usually at the service equipment.
◉ Ground fault -an event that occurs when metal that should not
conduct electricity (such as a metal water pipe) becomes energized; if
the metal is properly bonded, current flow should increase in the circuit
and trip the circuit breaker or fuse.
◉ Ground Fault Circuit Interrupter (GFCI) -a circuit breaker or
receptacle that detects a ground fault by monitoring the imbalance in
current flow between the energized and neutral conductors and stops
current flow kopens the circuit) when a ground fault is detected.
◉ Joules Law -a formula for calculating heat in an electrical circuit
expressed as Heat = Current▪︎2 X Resistance X Time.
◉ Knockouts -stamped openings in an enclosure where conduit or cable
clamps are installed to secure conductors or cables. See Tabs (twistouts).
◉ Load Center -See Panel (panelboard, load center)
SCRIPT 2026 COMPLETE QUESTIONS AND
SOLUTIONS
◉ American Wire Gauge (AWG) -an standard method of denoting the
diameter of electrically conducting wire
◉ Bonding -The process of connecting, both physically and electrically,
metal components of the electrical system that are not intended to carry
electrical current to provide a low resistance return path to the circuit
breaker or fuse to clear ground faults; bonding is an elecsafety system.
system.
◉ Branch Circuit -Conductors that begin at a circuit breaker or fuse and
serve one or more oulets.
◉ Branch Circuit, multiwire -A branch circuit in which two energized
conductors share one neutral, examples can include clothes dryers,
ranges and other cooking appliances, and split-wire receptacle circuits,
240 volt water heaters and condensers for air conditioners and heat
pumps are not usually branch circuits.
,◉ Bus (buss, busbar) -the heavy, rigid metal part of a panelboard on
which circuit breakers or fuses are mounted; sometimes used to describe
metal terminals to which the neutral and equipment grounding
conductors (EGCs) are connected.
◉ Cable -two or more conductors encased in sheathing; examples
include non-metallic sheathed cable (Brand Romex) and armored cable
(Brand BX)
◉ circuit breaker -overcurrent protection device (OPD)
◉ Conductor -a material, such as copper or aluminum, that permits
electricity to flow with low resistance, wires are conductors.
◉ Current -the amount of electricity in a circuit. Unit of measure is the
ampere (amp); expressed as I in Ohm's Law and Watt's Law equation.
◉ Dead front cover -a panel that is removed to gain access to the
energized components inside an enclosure; the dead front cover is
usually behind a door that must be swung or lifted to gain access to the
dead front cover.
◉ EGC -Equipment grounding conductor
,◉ Enclosure (electrical) -a case or cabinet intended to prevent accidental
contact with energized parts, a panelboard is housed inside an enclosure.
◉ Feeder conductors -conductors from the service equipment or from a
panelboard that supply electricity to another panelboard such as a
subpanel.
◉ Fuse -Overcurrent protection device (OPD)
◉ Grounded -a conductor that is intentionally connected to earth; this
describes what is often called the neutral conductor.
◉ grounding -providing an intentional connection to earth, grounding
provides an alternate path for current to return to its source; in an
electrical power system, the source is the utilities transformer and
ultimately power plant. See grounding electrode and grounding electrode
conductor (GEC).
◉ Grounding Conductor, Equipment (EGC) -a bare or insulated
conductor that provides a ground fault current path (a bonding
connection) for equipment with metal cases and parts; these have been
installed in most house branch circuit wiring since around 1960.
◉ grounding electrode -metal that is in direct contact with the earth and
serves as the electrical system grounding connection; examples include
, copper coated steel rods, galvanized steel pipes, water service and well
pipes, and reinforcing steel encased footings.
◉ grounding electrode conductor (GEC) -a conductor that runs between
the grounding electrode and an accessible point downstream from where
the grounded service entrance conductor connects to the service drop or
lateral; the GEC connection is usually at the service equipment.
◉ Ground fault -an event that occurs when metal that should not
conduct electricity (such as a metal water pipe) becomes energized; if
the metal is properly bonded, current flow should increase in the circuit
and trip the circuit breaker or fuse.
◉ Ground Fault Circuit Interrupter (GFCI) -a circuit breaker or
receptacle that detects a ground fault by monitoring the imbalance in
current flow between the energized and neutral conductors and stops
current flow kopens the circuit) when a ground fault is detected.
◉ Joules Law -a formula for calculating heat in an electrical circuit
expressed as Heat = Current▪︎2 X Resistance X Time.
◉ Knockouts -stamped openings in an enclosure where conduit or cable
clamps are installed to secure conductors or cables. See Tabs (twistouts).
◉ Load Center -See Panel (panelboard, load center)
