NEC Midterm Exam Questions &
Answers (Grade A+)
The NEC® arose as a consensus of more than 1200 individuals
primarily to ____. -
correct answer ✅combat a growing epidemic of electrical fires
Which agency is responsible for the maintenance and publication of
the NEC®? -
correct answer ✅National Fire Protection Association (NFPA)
NEC® tables such as 210.21(B)(3) present a requirement's ____. -
correct answer ✅multiple application possibilities
Mandatory rules in the NEC® contain the language ____. -
correct answer ✅"shall" or "shall not"
Formal interpretations of the NEC® are governed by ____. -
correct answer ✅NFPA
In addition to installation rules, the NEC® is concerned with the
____. -
correct answer ✅type and quality of electrical wiring system
materials
,NEC Midterm Exam Questions &
Answers (Grade A+)
the term "labeled" means that __ -
correct answer ✅equipment or material must continue to comply
with the appropriate standards (or performance) under which the
labeling was granted
The term "listed" means that ____. -
correct answer ✅equipment, materials, or services meet
appropriate designated standards or have been tested and found
suitable for a specified purpose
The NRTL program specified in the regulation "OSHA Recognition
Process for Nationally Recognized Testing Laboratories" ____. -
correct answer ✅accredits and regulates independent laboratories
The UL logo indicates that ____. -
correct answer ✅the listed product complies with UL standards
The word luminaire refers to ____. -
correct answer ✅the complete lighting unit
The Illustrated Guide to the NEC® should be used as a(n) ____. -
correct answer ✅supplement to the NEC®
,NEC Midterm Exam Questions &
Answers (Grade A+)
Local ordinances ____. -
correct answer ✅may adopt the NEC® as written or amend the
Code with more or less stringent regulations
Wiring components are considered accessible when (1) access can
be gained without damaging the structure or finish of the building
or (2) they are ____. -
correct answer ✅not permanently closed in by the structure or
finish of the building
Overcurrent devices do not have to be readily accessible if ____. -
correct answer ✅located adjacent to the equipment where access
is achieved by the use of portable means
Ready access to wiring in luminaires is ____. -
correct answer ✅Not required
An attachment plug establishes connection between ____. -
correct answer ✅conductors of the attached flexible cord and the
conductors permanently connected to the receptacle
, NEC Midterm Exam Questions &
Answers (Grade A+)
When metal parts are required to be electrically connected, a(n)
____ is installed, thereby guaranteeing the required electrical
conductivity. -
correct answer ✅reliable conductor (bonding jumper)
A(n) ____ is a device intended to provide protection from the
effects of arc faults by recognizing characteristics unique to arcing. -
correct answer ✅arc-fault circuit interruptor (AFCI)
An appliance branch circuit supplies energy to one or more outlets
for the purpose of ____. -
correct answer ✅connecting appliances
A multiwire circuit must consist of conductors connected to ____. -
correct answer ✅different phases
All conductors of a multiwire branch circuit must originate from
____. -
correct answer ✅the same panelboard or similar distribution
equipment
Answers (Grade A+)
The NEC® arose as a consensus of more than 1200 individuals
primarily to ____. -
correct answer ✅combat a growing epidemic of electrical fires
Which agency is responsible for the maintenance and publication of
the NEC®? -
correct answer ✅National Fire Protection Association (NFPA)
NEC® tables such as 210.21(B)(3) present a requirement's ____. -
correct answer ✅multiple application possibilities
Mandatory rules in the NEC® contain the language ____. -
correct answer ✅"shall" or "shall not"
Formal interpretations of the NEC® are governed by ____. -
correct answer ✅NFPA
In addition to installation rules, the NEC® is concerned with the
____. -
correct answer ✅type and quality of electrical wiring system
materials
,NEC Midterm Exam Questions &
Answers (Grade A+)
the term "labeled" means that __ -
correct answer ✅equipment or material must continue to comply
with the appropriate standards (or performance) under which the
labeling was granted
The term "listed" means that ____. -
correct answer ✅equipment, materials, or services meet
appropriate designated standards or have been tested and found
suitable for a specified purpose
The NRTL program specified in the regulation "OSHA Recognition
Process for Nationally Recognized Testing Laboratories" ____. -
correct answer ✅accredits and regulates independent laboratories
The UL logo indicates that ____. -
correct answer ✅the listed product complies with UL standards
The word luminaire refers to ____. -
correct answer ✅the complete lighting unit
The Illustrated Guide to the NEC® should be used as a(n) ____. -
correct answer ✅supplement to the NEC®
,NEC Midterm Exam Questions &
Answers (Grade A+)
Local ordinances ____. -
correct answer ✅may adopt the NEC® as written or amend the
Code with more or less stringent regulations
Wiring components are considered accessible when (1) access can
be gained without damaging the structure or finish of the building
or (2) they are ____. -
correct answer ✅not permanently closed in by the structure or
finish of the building
Overcurrent devices do not have to be readily accessible if ____. -
correct answer ✅located adjacent to the equipment where access
is achieved by the use of portable means
Ready access to wiring in luminaires is ____. -
correct answer ✅Not required
An attachment plug establishes connection between ____. -
correct answer ✅conductors of the attached flexible cord and the
conductors permanently connected to the receptacle
, NEC Midterm Exam Questions &
Answers (Grade A+)
When metal parts are required to be electrically connected, a(n)
____ is installed, thereby guaranteeing the required electrical
conductivity. -
correct answer ✅reliable conductor (bonding jumper)
A(n) ____ is a device intended to provide protection from the
effects of arc faults by recognizing characteristics unique to arcing. -
correct answer ✅arc-fault circuit interruptor (AFCI)
An appliance branch circuit supplies energy to one or more outlets
for the purpose of ____. -
correct answer ✅connecting appliances
A multiwire circuit must consist of conductors connected to ____. -
correct answer ✅different phases
All conductors of a multiwire branch circuit must originate from
____. -
correct answer ✅the same panelboard or similar distribution
equipment
