sammarized NEC chapter
2 [quiestions AND
CORRECT
ANSWERS]2024/2025*
Summary chapter 2 - ANSWERS-• Conductors within junction boxes must be accessible without
damaging the construction or finish of the build- ing or structure.
Summary chapter 2 - ANSWERS-• Certain equipment, such as the service disconnecting means,
must be readily accessible.
Summary chapter 2 - ANSWERS-• The term appliance denotes more than just kitchen
equipment.
Summary chapter 2 - ANSWERS-Branch circuits are divided into four categories: appliance,
general purpose, individual, and multiwire.
,Summary chapter 2 - ANSWERS-General purpose branch circuits may feed lights and receptacles
or any combination thereof
Summary chapter 2 - ANSWERS-An individual branch circuit feeds only one piece of equipment
//Summary chapter 2 - ANSWERS-The terms bonded and grounded are not interchangeable
Summary chapter 2 - ANSWERS-A multiwire branch circuit must have a means to simultaneously
disconnect all ungrounded (hot) conductors
Summary chapter 2 - ANSWERS-A load having the maximum level of current sustained for three
hours or more is a continuous load
Summary chapter 2 - ANSWERS-Equipment is a general term encompassing a wide variety of
items
Summary chapter 2 - ANSWERS-A grounded conductor and a grounding conductor have
different functions
Summary chapter 2 - ANSWERS-A grounded conductor is not necessarily a neutral conductor
Summary chapter 2 - ANSWERS-One duplex receptacle is not defined as a single receptacle
Summary chapter 2 - ANSWERS-Special permission is the written consent of the AHJ
Summary chapter 3 - ANSWERS-Limitations apply to the size and number of conductors
permitted in boxes (junction, pull, etc) and conduit bodies
,Summary chapter 3 - ANSWERS-One step (yoke) counts as two of the largest conductors
connected to the device
Summary chapter 3 - ANSWERS-Nonmetallic boxes may list the maximum number of conductors
permitted in the box, but that number must be reduced if switches, receptacles, etc are
installed in the box
Summary chapter 3 - ANSWERS-Plaster rings, raised covers, extension rings, etc can provide
additional cubic inch capacity to boxes
Summary chapter 3 - ANSWERS-Conduit bodies can contain splices, taps, or devices if the
conduit body is durably and legibly marked by the manufacturer with the volume
Summary chapter 3 - ANSWERS-The minimum length of free conductor is 6 inches is measured
from the point in the box where it emerges from its raceway or cable sheath
Summary chapter 3 - ANSWERS-Except as permitted in 250.112(1) all metal boxes shall be
grounded and bonded in accordance with parts 1, 4, 5, 6, 7 and 10 of article 250 as applicable
Summary chapter 3 - ANSWERS-Boxes and conduit bodies must remain accessible
Summary chapter 3 - ANSWERS-In suspended ceilings, boxes can be secured by support wires
that are installed in addition to the ceiling grid support wires
Summary chapter 3 - ANSWERS-Where boxes enclose 4 AWG and larger conductors that are
required to be insulated, different calculations methods apply to straight pulls than to angle
pulls.
Summary chapter 3 - ANSWERS-There is a minimum distance required between raceways
enclosing the same conductors (4 awg and larger) within a pull or junction box
, Summary chapter 3 - ANSWERS-Conduit bodies may not allow the same size and number of
conductors as is permitted in the conduit ( or tubing) that enters the conduit body
Summary chapter 4 - ANSWERS-When installed, cables must be protected from the possibility of
physical damage
Summary chapter 4 - ANSWERS-Conductors must be installed at least 1 1/4 inch from the
nearest edge of the framing member, unless a steel plate (at least 1/16 inch think) has been
installed to protect the conductors
Summary chapter 4 - ANSWERS-Conductors passing through metal studs (or framing members)
may require protection in the form of bushing or steel plates
Summary chapter 4 - ANSWERS-Fire resistant rated construction must remain intact once the
electrical system has been installed
Summary chapter 4 - ANSWERS-In dwelling, wiring can pass through the short dimension of a
joist(or stud) space being used for environmental air handling purposes
Summary chapter 4 - ANSWERS-Cables must be secured within a certain distance from boxes
(junction, device, etc) unless the cable has been fished between access points
Summary chapter 4 - ANSWERS-The maximum distance between supports depends on the type
of cable
Summary chapter 4 - ANSWERS-The minimum bending radius must be observed when installing
a cable
2 [quiestions AND
CORRECT
ANSWERS]2024/2025*
Summary chapter 2 - ANSWERS-• Conductors within junction boxes must be accessible without
damaging the construction or finish of the build- ing or structure.
Summary chapter 2 - ANSWERS-• Certain equipment, such as the service disconnecting means,
must be readily accessible.
Summary chapter 2 - ANSWERS-• The term appliance denotes more than just kitchen
equipment.
Summary chapter 2 - ANSWERS-Branch circuits are divided into four categories: appliance,
general purpose, individual, and multiwire.
,Summary chapter 2 - ANSWERS-General purpose branch circuits may feed lights and receptacles
or any combination thereof
Summary chapter 2 - ANSWERS-An individual branch circuit feeds only one piece of equipment
//Summary chapter 2 - ANSWERS-The terms bonded and grounded are not interchangeable
Summary chapter 2 - ANSWERS-A multiwire branch circuit must have a means to simultaneously
disconnect all ungrounded (hot) conductors
Summary chapter 2 - ANSWERS-A load having the maximum level of current sustained for three
hours or more is a continuous load
Summary chapter 2 - ANSWERS-Equipment is a general term encompassing a wide variety of
items
Summary chapter 2 - ANSWERS-A grounded conductor and a grounding conductor have
different functions
Summary chapter 2 - ANSWERS-A grounded conductor is not necessarily a neutral conductor
Summary chapter 2 - ANSWERS-One duplex receptacle is not defined as a single receptacle
Summary chapter 2 - ANSWERS-Special permission is the written consent of the AHJ
Summary chapter 3 - ANSWERS-Limitations apply to the size and number of conductors
permitted in boxes (junction, pull, etc) and conduit bodies
,Summary chapter 3 - ANSWERS-One step (yoke) counts as two of the largest conductors
connected to the device
Summary chapter 3 - ANSWERS-Nonmetallic boxes may list the maximum number of conductors
permitted in the box, but that number must be reduced if switches, receptacles, etc are
installed in the box
Summary chapter 3 - ANSWERS-Plaster rings, raised covers, extension rings, etc can provide
additional cubic inch capacity to boxes
Summary chapter 3 - ANSWERS-Conduit bodies can contain splices, taps, or devices if the
conduit body is durably and legibly marked by the manufacturer with the volume
Summary chapter 3 - ANSWERS-The minimum length of free conductor is 6 inches is measured
from the point in the box where it emerges from its raceway or cable sheath
Summary chapter 3 - ANSWERS-Except as permitted in 250.112(1) all metal boxes shall be
grounded and bonded in accordance with parts 1, 4, 5, 6, 7 and 10 of article 250 as applicable
Summary chapter 3 - ANSWERS-Boxes and conduit bodies must remain accessible
Summary chapter 3 - ANSWERS-In suspended ceilings, boxes can be secured by support wires
that are installed in addition to the ceiling grid support wires
Summary chapter 3 - ANSWERS-Where boxes enclose 4 AWG and larger conductors that are
required to be insulated, different calculations methods apply to straight pulls than to angle
pulls.
Summary chapter 3 - ANSWERS-There is a minimum distance required between raceways
enclosing the same conductors (4 awg and larger) within a pull or junction box
, Summary chapter 3 - ANSWERS-Conduit bodies may not allow the same size and number of
conductors as is permitted in the conduit ( or tubing) that enters the conduit body
Summary chapter 4 - ANSWERS-When installed, cables must be protected from the possibility of
physical damage
Summary chapter 4 - ANSWERS-Conductors must be installed at least 1 1/4 inch from the
nearest edge of the framing member, unless a steel plate (at least 1/16 inch think) has been
installed to protect the conductors
Summary chapter 4 - ANSWERS-Conductors passing through metal studs (or framing members)
may require protection in the form of bushing or steel plates
Summary chapter 4 - ANSWERS-Fire resistant rated construction must remain intact once the
electrical system has been installed
Summary chapter 4 - ANSWERS-In dwelling, wiring can pass through the short dimension of a
joist(or stud) space being used for environmental air handling purposes
Summary chapter 4 - ANSWERS-Cables must be secured within a certain distance from boxes
(junction, device, etc) unless the cable has been fished between access points
Summary chapter 4 - ANSWERS-The maximum distance between supports depends on the type
of cable
Summary chapter 4 - ANSWERS-The minimum bending radius must be observed when installing
a cable
