NFPA 70 (2014 Edition) Article 100
Definitions – Electricians Exam 2025
Questions and Answers
Accessible (equipment) - ANSWER✔✔-Admitting close approach; not guarded by locked doors,
elevation, or other means
Accessible (wiring method) - ANSWER✔✔-Capable of being removed or exposed without
damaging the building structure or finish or not permanently closed in by the structure or finish of
the builing
Accessible, Readily - ANSWER✔✔-Capable of being reached quickly for operation, renewal, or
inspections without requiring those to whom ready access is requisite to actions such as to use tools,
to climb over or remove obstacles, or to resort to portable ladders, and so forth
Adjustable Speed Drive - ANSWER✔✔-Power conversion equipment that provides a means of
adjusting the speed of an electric motor.
Adjustable Speed Drive System - ANSWER✔✔-A combination of an adjustable speed drive, its
associated motor(s), and auxiliary equipment.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
,Ampacity - ANSWER✔✔-The maximum current, in amperes, that a conductor can carry
continuously under the conditions of use without exceeding its temperature rating.
Appliance - ANSWER✔✔-Utilization equipment, generally other than industrial, that is normally
built in standardized sizes or types and is installed or connected as a unit to perform one or more
functions such as clothes washing, air-conditioning, food mixing, deep frying, and so forth
Approved - ANSWER✔✔-Acceptable to the authority having jurisdiction
Arc-Fault Circuit Interrupter (AFCI) - ANSWER✔✔-A device intended to provide protection from
the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-
energize the circuit when an arc fault is detected
Askarel - ANSWER✔✔-A generic term for a group of nonflammable synthetic chlorinated
hydrocarbons used as electrical insulating media
Attachment Plug (Plug Cap) (Plug) - ANSWER✔✔-A device that, by insertion in a receptacle,
establishes a connection between the conductors of the attached flexible cord and the conductors
connected permanently to the receptacle
Authority Having Jurisdiction (AHJ) - ANSWER✔✔-An organization, office, or individual
responsible for enforcing the requirements of a code or standard, or for approving equipment,
materials, an installation, or a procedure
Automatic - ANSWER✔✔-Performing a function without the necessity of human intervention.
Bathroom - ANSWER✔✔-An area including a basin with one or more of the following: a toilet, a
urinal, a tub, a shower, a bidet, or similar plumbing fixtures
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
, Battery System - ANSWER✔✔-Interconnected battery subsystems consisting of one or more
storage batteries and battery chargers, and can include inverters, converters, and associated electrical
equipment.
Bonded (Bonding) - ANSWER✔✔-Connected to establish electrical continuity and conductivity
Bonding Conductor or Jumper - ANSWER✔✔-A reliable conductor to ensure the required
electrical conductivity between metal parts required to be electrically connected
Bonding Jumper, Equipment - ANSWER✔✔-The connection between two or more portions of the
equipment grounding conductor
Bonding Jumper, Main - ANSWER✔✔-The connection between the grounded circuit conductor
and the equipment grounding conductor at the service.
Bonding Jumper, System - ANSWER✔✔-The connection between the grounded circuit conductor
and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately
derived system.
Branch Circuit - ANSWER✔✔-The circuit conductors between the final overcurrent device
protecting the circuit and the outlet(s)
Branch Circuit, Appliance - ANSWER✔✔-A branch circuit that supplies energy to one or more
outlets to which appliances are to be connected and that has no permanently connected luminaires
that are not a part of an appliance
Branch Circuit, General-Purpose - ANSWER✔✔-A branch circuit that supplies two or more
receptacles or outlets for lighting and appliances
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
Definitions – Electricians Exam 2025
Questions and Answers
Accessible (equipment) - ANSWER✔✔-Admitting close approach; not guarded by locked doors,
elevation, or other means
Accessible (wiring method) - ANSWER✔✔-Capable of being removed or exposed without
damaging the building structure or finish or not permanently closed in by the structure or finish of
the builing
Accessible, Readily - ANSWER✔✔-Capable of being reached quickly for operation, renewal, or
inspections without requiring those to whom ready access is requisite to actions such as to use tools,
to climb over or remove obstacles, or to resort to portable ladders, and so forth
Adjustable Speed Drive - ANSWER✔✔-Power conversion equipment that provides a means of
adjusting the speed of an electric motor.
Adjustable Speed Drive System - ANSWER✔✔-A combination of an adjustable speed drive, its
associated motor(s), and auxiliary equipment.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
,Ampacity - ANSWER✔✔-The maximum current, in amperes, that a conductor can carry
continuously under the conditions of use without exceeding its temperature rating.
Appliance - ANSWER✔✔-Utilization equipment, generally other than industrial, that is normally
built in standardized sizes or types and is installed or connected as a unit to perform one or more
functions such as clothes washing, air-conditioning, food mixing, deep frying, and so forth
Approved - ANSWER✔✔-Acceptable to the authority having jurisdiction
Arc-Fault Circuit Interrupter (AFCI) - ANSWER✔✔-A device intended to provide protection from
the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-
energize the circuit when an arc fault is detected
Askarel - ANSWER✔✔-A generic term for a group of nonflammable synthetic chlorinated
hydrocarbons used as electrical insulating media
Attachment Plug (Plug Cap) (Plug) - ANSWER✔✔-A device that, by insertion in a receptacle,
establishes a connection between the conductors of the attached flexible cord and the conductors
connected permanently to the receptacle
Authority Having Jurisdiction (AHJ) - ANSWER✔✔-An organization, office, or individual
responsible for enforcing the requirements of a code or standard, or for approving equipment,
materials, an installation, or a procedure
Automatic - ANSWER✔✔-Performing a function without the necessity of human intervention.
Bathroom - ANSWER✔✔-An area including a basin with one or more of the following: a toilet, a
urinal, a tub, a shower, a bidet, or similar plumbing fixtures
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
, Battery System - ANSWER✔✔-Interconnected battery subsystems consisting of one or more
storage batteries and battery chargers, and can include inverters, converters, and associated electrical
equipment.
Bonded (Bonding) - ANSWER✔✔-Connected to establish electrical continuity and conductivity
Bonding Conductor or Jumper - ANSWER✔✔-A reliable conductor to ensure the required
electrical conductivity between metal parts required to be electrically connected
Bonding Jumper, Equipment - ANSWER✔✔-The connection between two or more portions of the
equipment grounding conductor
Bonding Jumper, Main - ANSWER✔✔-The connection between the grounded circuit conductor
and the equipment grounding conductor at the service.
Bonding Jumper, System - ANSWER✔✔-The connection between the grounded circuit conductor
and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately
derived system.
Branch Circuit - ANSWER✔✔-The circuit conductors between the final overcurrent device
protecting the circuit and the outlet(s)
Branch Circuit, Appliance - ANSWER✔✔-A branch circuit that supplies energy to one or more
outlets to which appliances are to be connected and that has no permanently connected luminaires
that are not a part of an appliance
Branch Circuit, General-Purpose - ANSWER✔✔-A branch circuit that supplies two or more
receptacles or outlets for lighting and appliances
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
