RESIDENTIAL ELECTRICAL CORE MAIN
EXAMINATION QUESTIONS AND ANSWERS SURE A+
✔✔The portion of a wiring system that extends beyond the final overcurrent device is
the __________ __________. - ✔✔branch circuit
✔✔A __________ is a circuit that carries current from the service equipment to a sub-
panel or a branch circuit panel or to come point in the wiring system. - ✔✔feeder
✔✔Normally located at the service entrance of a residential installation, a _____ _____
sometimes contains the main disconnect. - ✔✔load center
✔✔Raceway, cable, wires, boxes, and other equipment are installed during
__________ ____. - ✔✔roughing in
✔✔The term __________ is General Cable's trade name for Type NM cable, but it is
often used to refer to any nonmetallic-sheathed cable. - ✔✔Romex
✔✔Appliances - ✔✔Equipment designed for a particular purpose (for example, using
electricity to produce heat, light, or mechanical motion). Appliances are usually self-
contained, are generally available for applications other than industrial us, and are
normally produced in standard sizes and types.
, ✔✔Bonding bushing - ✔✔A special conduit bushing equipped with a conductor terminal
to accept a bonding jumper. It also has a screw or other sharp device to bite into the
enclosure wall to bond the conduit to the enclosure without a jumper when there are no
concentric knockouts left in the wall of the enclosure.
✔✔Branch circuit - ✔✔The portion of a wiring system extending beyond the final
overcurrent device protecting a circuit.
✔✔Feeder - ✔✔A circuit, such as conductors in conduit or a cable run, that carries
current from the service equipment to a subpanel or a branch circuit panel or to some
point in the wiring system.
✔✔Load center - ✔✔A type of panelboard that is normally located at the service
entrance of a residential installation. It sometimes contains the main disconnect.
✔✔Metal-clad (Type MC) cable - ✔✔A factory assembly of one or more insulated circuit
conductors with or without optical fiber members enclosed in an armor of interlocking
metal tape, or a smooth or corrugated metallic sheath.
✔✔Nonmetallic-sheathed (Type NM) cable - ✔✔A factory-assembly of tow or more
insulated conductors enclosed within an overall nonmetallic jacket. Type NM contains
insulated conductors enclosed within an overall nonmetallic jacket; Type NMC contains
insulated conductors enclosed within an overall, corrosion-resistant, nonmetallic jacket;
and Type NMS contains insulated power or control conductors with signaling, data, and
communications conductors within an overall nonmetallic jacket.
✔✔Romex - ✔✔General Cable's trade name for type NM cable; however, it is often
used generically to refer to any non-metallic-sheathed cable.
✔✔Roughing in - ✔✔The first stage of an electrical installation, when the raceway,
cable, wires, boxes, and other equipment are installed. This is the electrical work that
must be done before any finishing work can be done.
✔✔Service drop - ✔✔The overhead conductors, through which electrical service is
supplied, between the last power company pole and the point of their connection to the
service facilities located at the building.
✔✔Service entrance - ✔✔The point where power is supplied to a building (including the
equipment used for this purpose). The service entrance includes the service main
switch or panelboard, metering devices, overcurrent protective devices, and
conductors/raceways for connecting to the power company's conductors.
✔✔Service-entrance conductors - ✔✔The conductors between the point of termination
of the overhead service drop or underground service lateral and the main disconnecting
device in the building.
EXAMINATION QUESTIONS AND ANSWERS SURE A+
✔✔The portion of a wiring system that extends beyond the final overcurrent device is
the __________ __________. - ✔✔branch circuit
✔✔A __________ is a circuit that carries current from the service equipment to a sub-
panel or a branch circuit panel or to come point in the wiring system. - ✔✔feeder
✔✔Normally located at the service entrance of a residential installation, a _____ _____
sometimes contains the main disconnect. - ✔✔load center
✔✔Raceway, cable, wires, boxes, and other equipment are installed during
__________ ____. - ✔✔roughing in
✔✔The term __________ is General Cable's trade name for Type NM cable, but it is
often used to refer to any nonmetallic-sheathed cable. - ✔✔Romex
✔✔Appliances - ✔✔Equipment designed for a particular purpose (for example, using
electricity to produce heat, light, or mechanical motion). Appliances are usually self-
contained, are generally available for applications other than industrial us, and are
normally produced in standard sizes and types.
, ✔✔Bonding bushing - ✔✔A special conduit bushing equipped with a conductor terminal
to accept a bonding jumper. It also has a screw or other sharp device to bite into the
enclosure wall to bond the conduit to the enclosure without a jumper when there are no
concentric knockouts left in the wall of the enclosure.
✔✔Branch circuit - ✔✔The portion of a wiring system extending beyond the final
overcurrent device protecting a circuit.
✔✔Feeder - ✔✔A circuit, such as conductors in conduit or a cable run, that carries
current from the service equipment to a subpanel or a branch circuit panel or to some
point in the wiring system.
✔✔Load center - ✔✔A type of panelboard that is normally located at the service
entrance of a residential installation. It sometimes contains the main disconnect.
✔✔Metal-clad (Type MC) cable - ✔✔A factory assembly of one or more insulated circuit
conductors with or without optical fiber members enclosed in an armor of interlocking
metal tape, or a smooth or corrugated metallic sheath.
✔✔Nonmetallic-sheathed (Type NM) cable - ✔✔A factory-assembly of tow or more
insulated conductors enclosed within an overall nonmetallic jacket. Type NM contains
insulated conductors enclosed within an overall nonmetallic jacket; Type NMC contains
insulated conductors enclosed within an overall, corrosion-resistant, nonmetallic jacket;
and Type NMS contains insulated power or control conductors with signaling, data, and
communications conductors within an overall nonmetallic jacket.
✔✔Romex - ✔✔General Cable's trade name for type NM cable; however, it is often
used generically to refer to any non-metallic-sheathed cable.
✔✔Roughing in - ✔✔The first stage of an electrical installation, when the raceway,
cable, wires, boxes, and other equipment are installed. This is the electrical work that
must be done before any finishing work can be done.
✔✔Service drop - ✔✔The overhead conductors, through which electrical service is
supplied, between the last power company pole and the point of their connection to the
service facilities located at the building.
✔✔Service entrance - ✔✔The point where power is supplied to a building (including the
equipment used for this purpose). The service entrance includes the service main
switch or panelboard, metering devices, overcurrent protective devices, and
conductors/raceways for connecting to the power company's conductors.
✔✔Service-entrance conductors - ✔✔The conductors between the point of termination
of the overhead service drop or underground service lateral and the main disconnecting
device in the building.
