ELECTRICAL 1ST PERIOD- CODE
EXAM STUDY GUIDE QUESTIONS
AND CORRECT
SOLUTIONS||100% GUARANTEED
PASS||UPDATED 2026\2027
SYLLABUS||A+
GRADED||<<RECENT VERSION>>
Explosion proof - ANSWER ✓ The term that best describes the type of wiring
method and equipment used in Class I locations is:
a. Explosion proof
b. Dust-ignition-proof
c. Watertight
d. Oiltight
Dust-ignition-proof - ANSWER ✓ The term that best describes the type of wiring
methods and equipment used in Class II
locations is:
a. Explosion proof
b. Dust-ignition-proof
c. Watertight
d. Oiltight
Installations underground in mines - ANSWER ✓ The scope of the National
Electrical Code does not include coverage for:
a. Electric conductors and equipment installed within or on public buildings
b. Conductors that connect the installation to a supply of electricity
c. Installations underground in mines
,d. Outside conductors on mine property
1/0 AWG - ANSWER ✓ What is the minimum size of power conductor
comprising each phase or neutral that shall
be permitted to be connected in parallel?
a. 2 AWG
b. 1/0 AWG
c. 2/0 AWG
d. 4/0 AWG
Green or green with one or more yellow stripes - ANSWER ✓ Which of the
following is the approved equipment grounding conductor color code?
a. White
b. Natural Gray
c. Black
d. Green or green with one or more yellow stripes
A feeder consists of all circuit conductors located ____. - ANSWER ✓ between
the service equipment, the source of separately derived system, or other power
supply source and the final branch-circuit overcurrent device
A grounding electrode is a(n) ____ object that establishes a direct connection to
earth. - ANSWER ✓ conducting
All conductors of a multiwire branch circuit must originate from ____. -
ANSWER ✓ the same panelboard or similar distribution equipment
A load having the maximum level of current sustained for three hours or more is
referred to as a ____ load. - ANSWER ✓ continuous
A multiwire circuit must consist of conductors connected to ____. - ANSWER ✓
different phases
An appliance branch circuit supplies energy to one or more outlets for the purpose
of ____. - ANSWER ✓ connecting appliance(s)
, An attachment plug establishes connection between ____. - ANSWER ✓
connecting appliance(s)
An attachment plug establishes connection between ____. - ANSWER ✓
conductors of the attached flexible cord and the conductors permanently connected
to the receptacle
A neutral conductor is defined as the conductor connected to the ____ that is
intended to carry current under normal conditions. - ANSWER ✓ neutral point of
a system
A(n) ____ is a device intended to provide protection from the effects of arc faults
by recognizing characteristics unique to arcing. - ANSWER ✓ arc-fault circuit
interruptor (AFCI)
A(n) ____ is an accessory, such as a locknut or bushing, whose function is
primarily mechanical, rather than electrical, in nature. - ANSWER ✓ Fitting
The ____ is the organization, office, or individual responsible for enforcing the
requirements of a code. - ANSWER ✓ AHJ
A point in a wiring system from which current is taken to supply utilization
equipment is known as a(n) ____. - ANSWER ✓ Outlet
A separately derived system is an electrical source, other than a service, having
____ connection(s) to circuit conductors of any other electrical source other than
those established by grounding and bonding connections. - ANSWER ✓ No direct
A service point can be described as the point of demarcation between where the
____ ends and the premises wiring begins. - ANSWER ✓ Serving utility
Conductors in concealed raceways, even though they may become accessible by
withdrawing them, are still considered ____. - ANSWER ✓ Concealed
Grounded (grounding) is defined as being ____. - ANSWER ✓ connected to
ground or to a conductive body that extends the ground connection
, Overcurrent devices do not have to be readily accessible if ____. - ANSWER ✓
located adjacent to the equipment where access is achieved by the use of portable
means
Panelboards having doors or covers are considered ____. - ANSWER ✓ Guarded
"Equipment" is a general term, including fittings, devices, appliances, luminaires,
apparatus, machinery, etc. used ____ in an electrical installation. - ANSWER ✓
directly or indirectly
(D)WHat is a termination of a conductor? - ANSWER ✓ Splicing and
Terminating (Low voltage)
A termination is the connection of a conductor to its final destination at a control or
utilization
(D)What is the maximum size conductor that the CEC allows to be terminated
under a screw without the use of a mechanical or compression connector -
ANSWER ✓ Splicing and Terminating (Low voltage)
#10 Awg
Electrically conductive materials that are likely to ______ in underground system
shall be connected together and to the supply system grounded equipment in a
manner that creates a low-impedance path for ground-fault current that is capable
of carrying the maximum fault current likely to be imposed on it.
A. become energized
B. require service
C. be removed
D. be coated with paint or non-conductive material - ANSWER ✓ become
energized
In underground systems, electrical equipment, wiring, and other electrical
conductive material likely to become energized shall be installed in a manner that
creates a low-impedance circuit from any point on the wiring system to the
electrical supply source to facilitate the operation of overcurrent device should
a(n)______ fault from a different phase occur on the wring system.
A. isolated ground
B. second ground
C. arc
EXAM STUDY GUIDE QUESTIONS
AND CORRECT
SOLUTIONS||100% GUARANTEED
PASS||UPDATED 2026\2027
SYLLABUS||A+
GRADED||<<RECENT VERSION>>
Explosion proof - ANSWER ✓ The term that best describes the type of wiring
method and equipment used in Class I locations is:
a. Explosion proof
b. Dust-ignition-proof
c. Watertight
d. Oiltight
Dust-ignition-proof - ANSWER ✓ The term that best describes the type of wiring
methods and equipment used in Class II
locations is:
a. Explosion proof
b. Dust-ignition-proof
c. Watertight
d. Oiltight
Installations underground in mines - ANSWER ✓ The scope of the National
Electrical Code does not include coverage for:
a. Electric conductors and equipment installed within or on public buildings
b. Conductors that connect the installation to a supply of electricity
c. Installations underground in mines
,d. Outside conductors on mine property
1/0 AWG - ANSWER ✓ What is the minimum size of power conductor
comprising each phase or neutral that shall
be permitted to be connected in parallel?
a. 2 AWG
b. 1/0 AWG
c. 2/0 AWG
d. 4/0 AWG
Green or green with one or more yellow stripes - ANSWER ✓ Which of the
following is the approved equipment grounding conductor color code?
a. White
b. Natural Gray
c. Black
d. Green or green with one or more yellow stripes
A feeder consists of all circuit conductors located ____. - ANSWER ✓ between
the service equipment, the source of separately derived system, or other power
supply source and the final branch-circuit overcurrent device
A grounding electrode is a(n) ____ object that establishes a direct connection to
earth. - ANSWER ✓ conducting
All conductors of a multiwire branch circuit must originate from ____. -
ANSWER ✓ the same panelboard or similar distribution equipment
A load having the maximum level of current sustained for three hours or more is
referred to as a ____ load. - ANSWER ✓ continuous
A multiwire circuit must consist of conductors connected to ____. - ANSWER ✓
different phases
An appliance branch circuit supplies energy to one or more outlets for the purpose
of ____. - ANSWER ✓ connecting appliance(s)
, An attachment plug establishes connection between ____. - ANSWER ✓
connecting appliance(s)
An attachment plug establishes connection between ____. - ANSWER ✓
conductors of the attached flexible cord and the conductors permanently connected
to the receptacle
A neutral conductor is defined as the conductor connected to the ____ that is
intended to carry current under normal conditions. - ANSWER ✓ neutral point of
a system
A(n) ____ is a device intended to provide protection from the effects of arc faults
by recognizing characteristics unique to arcing. - ANSWER ✓ arc-fault circuit
interruptor (AFCI)
A(n) ____ is an accessory, such as a locknut or bushing, whose function is
primarily mechanical, rather than electrical, in nature. - ANSWER ✓ Fitting
The ____ is the organization, office, or individual responsible for enforcing the
requirements of a code. - ANSWER ✓ AHJ
A point in a wiring system from which current is taken to supply utilization
equipment is known as a(n) ____. - ANSWER ✓ Outlet
A separately derived system is an electrical source, other than a service, having
____ connection(s) to circuit conductors of any other electrical source other than
those established by grounding and bonding connections. - ANSWER ✓ No direct
A service point can be described as the point of demarcation between where the
____ ends and the premises wiring begins. - ANSWER ✓ Serving utility
Conductors in concealed raceways, even though they may become accessible by
withdrawing them, are still considered ____. - ANSWER ✓ Concealed
Grounded (grounding) is defined as being ____. - ANSWER ✓ connected to
ground or to a conductive body that extends the ground connection
, Overcurrent devices do not have to be readily accessible if ____. - ANSWER ✓
located adjacent to the equipment where access is achieved by the use of portable
means
Panelboards having doors or covers are considered ____. - ANSWER ✓ Guarded
"Equipment" is a general term, including fittings, devices, appliances, luminaires,
apparatus, machinery, etc. used ____ in an electrical installation. - ANSWER ✓
directly or indirectly
(D)WHat is a termination of a conductor? - ANSWER ✓ Splicing and
Terminating (Low voltage)
A termination is the connection of a conductor to its final destination at a control or
utilization
(D)What is the maximum size conductor that the CEC allows to be terminated
under a screw without the use of a mechanical or compression connector -
ANSWER ✓ Splicing and Terminating (Low voltage)
#10 Awg
Electrically conductive materials that are likely to ______ in underground system
shall be connected together and to the supply system grounded equipment in a
manner that creates a low-impedance path for ground-fault current that is capable
of carrying the maximum fault current likely to be imposed on it.
A. become energized
B. require service
C. be removed
D. be coated with paint or non-conductive material - ANSWER ✓ become
energized
In underground systems, electrical equipment, wiring, and other electrical
conductive material likely to become energized shall be installed in a manner that
creates a low-impedance circuit from any point on the wiring system to the
electrical supply source to facilitate the operation of overcurrent device should
a(n)______ fault from a different phase occur on the wring system.
A. isolated ground
B. second ground
C. arc
