NYC MASTER ELECTRICAL EXAM QUESTIONS WITH
VERIFIED SOLUTIONS GRADED A+ 2026-2027
neutral point ANSWER > The common point on a wye-connection in a polyphase
system or midpoint on a single phase, 3-wire system, or midpoint of a single phase
portion of a 3-phase delta system, or a midpoint of a 3-wire, direct current system
In the NEC the words ___________indicate a mandatory requirement ANSWER > Shall
or shall not
1
,On a four wire Delta connected system with a midpoint of one phase winding is
grounded, only the conductor or bus bar having a higher phase voltage the ground shall
be durably and permanently marked by an outer finish that is _______ in color or by
other effective means. Such Identification shall be placed at each point on the system
where connection is made if the grounded conductor is also present. ANSWER >
Orange
The required working space for access to live parts operating at 300 V to ground, where
there are exposed live parts on one side and grounded parts on the other side is
____________. ANSWER > 3 feet 6 inches
The dimensions of working space for access to live parts operating at 300 V, nominal to
ground, where there are expose live parts on both sides of the workspace
is________________. ANSWER > 4 feet
110.26 A1- Dead front assemblies working space ANSWER > 30" for non-electrical
parts
36" for electrical parts
The working space in front of the electrical equipment shall not be less than
_______wide, or of the width of the equipment, whichever is greater. ANSWER > 30"
Large equipment ANSWER > 1200 A or greater and over 6 feet wide
Large equipment means of egress ANSWER > Two means of egress 24" wide by 6.5
feet tall unless the following condutions are met
1) unobstructed egress
2
,2) Double the workspace
Headroom shall not be less than _______. ANSWER > 6.5 feet or the height of the
equipment
Live parts of electrical equipment operating at ______volts or more she'll be guarded
against accidental contact or approved enclosures or by any of the following means
ANSWER > 50 volts
4) by elevation of 8 feet or more above the floor or other working surface
A fence shall not be less than ______feet in height ANSWER > 8 feet
One entrance to enclosures for electrical installations as described in 110.31 not less
than _______wide and _________high shall be provided to give access to the working
space around the electrical equipment ANSWER > 30 inches and 6.5 feet
Network compartments shall have at least ________means of access. Each door she'll
have an access that leads to a legal exit. ANSWER > Two
Where rear access is required to work on deenergized parts on the back of enclosed
equipment a minimum working space of __________horizontally shall be provided
ANSWER > 30 inches
All non-current carrying metal parts of electrical equipment and all metal raceways and
cable shall be solidly grounded and bonded to all metal pipes in rails at the portal and
the intervals not exceeding _____________throughout the tunnel. ANSWER > 1000
feet
Manhole workspace for cabling-A clear workspace not less than _______wide shall be
provided were cables are located on both sides and not less than _______were cables
are only on one side. ANSWER > 3 feet
3
, 2-1/2 feet
Access to manhole dimensions. Rectangular access openings shall not be less than
_______. Round access openings in a manhole shall be not less than ______inches in
diameter ANSWER > 26" x 22"
26"
Manhole openings for personnel shall be located where they are not directly above
electrical equipment or conductors in the enclosure. Where this is not practiceable
either a ________or a _______shall be provided. ANSWER > Protective barrier of fixed
ladder
And insulated grounded conductor of _____or smaller shall be identified by a
continuous white or gray outer finish or by three continuous white stripes on other than
green insulation along its entire length. ANSWER > 6 awg
Manhole covers shall be over ______pounds or otherwise designated to require the use
of tools to open. ANSWER > 100 pounds
The grounded conductors of other systems shall have a different outer covering
conforming to 200.6A or 200.6B or by an outer covering of ______or _______with a
readily distinguishable colored stripe other than green running along the insulation
ANSWER > White or gray
Where conductors of different systems are installed in the same race way, one system
she'll have a neutral having an outer covering of white or natural gray and each other
system having a neutral shall have an another covering of ANSWER > White with
colored Stripe other than green or distinguish by other suitable approved means
For screw shell devices with attach leads the conductor attached to the screw shell shall
have a _______or ________finish. ANSWER > White or gray
4
VERIFIED SOLUTIONS GRADED A+ 2026-2027
neutral point ANSWER > The common point on a wye-connection in a polyphase
system or midpoint on a single phase, 3-wire system, or midpoint of a single phase
portion of a 3-phase delta system, or a midpoint of a 3-wire, direct current system
In the NEC the words ___________indicate a mandatory requirement ANSWER > Shall
or shall not
1
,On a four wire Delta connected system with a midpoint of one phase winding is
grounded, only the conductor or bus bar having a higher phase voltage the ground shall
be durably and permanently marked by an outer finish that is _______ in color or by
other effective means. Such Identification shall be placed at each point on the system
where connection is made if the grounded conductor is also present. ANSWER >
Orange
The required working space for access to live parts operating at 300 V to ground, where
there are exposed live parts on one side and grounded parts on the other side is
____________. ANSWER > 3 feet 6 inches
The dimensions of working space for access to live parts operating at 300 V, nominal to
ground, where there are expose live parts on both sides of the workspace
is________________. ANSWER > 4 feet
110.26 A1- Dead front assemblies working space ANSWER > 30" for non-electrical
parts
36" for electrical parts
The working space in front of the electrical equipment shall not be less than
_______wide, or of the width of the equipment, whichever is greater. ANSWER > 30"
Large equipment ANSWER > 1200 A or greater and over 6 feet wide
Large equipment means of egress ANSWER > Two means of egress 24" wide by 6.5
feet tall unless the following condutions are met
1) unobstructed egress
2
,2) Double the workspace
Headroom shall not be less than _______. ANSWER > 6.5 feet or the height of the
equipment
Live parts of electrical equipment operating at ______volts or more she'll be guarded
against accidental contact or approved enclosures or by any of the following means
ANSWER > 50 volts
4) by elevation of 8 feet or more above the floor or other working surface
A fence shall not be less than ______feet in height ANSWER > 8 feet
One entrance to enclosures for electrical installations as described in 110.31 not less
than _______wide and _________high shall be provided to give access to the working
space around the electrical equipment ANSWER > 30 inches and 6.5 feet
Network compartments shall have at least ________means of access. Each door she'll
have an access that leads to a legal exit. ANSWER > Two
Where rear access is required to work on deenergized parts on the back of enclosed
equipment a minimum working space of __________horizontally shall be provided
ANSWER > 30 inches
All non-current carrying metal parts of electrical equipment and all metal raceways and
cable shall be solidly grounded and bonded to all metal pipes in rails at the portal and
the intervals not exceeding _____________throughout the tunnel. ANSWER > 1000
feet
Manhole workspace for cabling-A clear workspace not less than _______wide shall be
provided were cables are located on both sides and not less than _______were cables
are only on one side. ANSWER > 3 feet
3
, 2-1/2 feet
Access to manhole dimensions. Rectangular access openings shall not be less than
_______. Round access openings in a manhole shall be not less than ______inches in
diameter ANSWER > 26" x 22"
26"
Manhole openings for personnel shall be located where they are not directly above
electrical equipment or conductors in the enclosure. Where this is not practiceable
either a ________or a _______shall be provided. ANSWER > Protective barrier of fixed
ladder
And insulated grounded conductor of _____or smaller shall be identified by a
continuous white or gray outer finish or by three continuous white stripes on other than
green insulation along its entire length. ANSWER > 6 awg
Manhole covers shall be over ______pounds or otherwise designated to require the use
of tools to open. ANSWER > 100 pounds
The grounded conductors of other systems shall have a different outer covering
conforming to 200.6A or 200.6B or by an outer covering of ______or _______with a
readily distinguishable colored stripe other than green running along the insulation
ANSWER > White or gray
Where conductors of different systems are installed in the same race way, one system
she'll have a neutral having an outer covering of white or natural gray and each other
system having a neutral shall have an another covering of ANSWER > White with
colored Stripe other than green or distinguish by other suitable approved means
For screw shell devices with attach leads the conductor attached to the screw shell shall
have a _______or ________finish. ANSWER > White or gray
4
