NYC MASTER ELECTRICAL EXAM
QUESTIONS AND ANSWERS
neutral point - Correct Answers -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 - Correct
Answers -Shall or shall not
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. - Correct Answers
-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
____________. - Correct Answers -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________________. - Correct Answers -4 feet
110.26 A1- Dead front assemblies working space - Correct Answers -30" for non-
electrical parts
36" for electrical parts
When installing receptacles around the pool they should be set back from the inside
walls of not less than ________ feet. - Correct Answers -6
When connected to a device over 2500 A but less than 5000A Busbars shall be sized
based on _______ amps per square inch for copper and _____ amps per square inch
for aluminum. - Correct Answers -800, 600
When connected to a device over 5000 Amperes Busbars shall be sized based on
_______ amps per square inch for copper and _____ amps per square inch for
aluminum. - Correct Answers -700, 525
,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. - Correct Answers
-30"
Large equipment - Correct Answers -1200 A or greater and over 6 feet wide
Large equipment means of egress - Correct Answers -Two means of egress 24" wide
by 6.5 feet tall unless the following condutions are met
1) unobstructed egress
2) Double the workspace
Headroom shall not be less than _______. - Correct Answers -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 -
Correct Answers -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 - Correct Answers -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 - Correct Answers -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. - Correct Answers -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 -
Correct Answers -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. - Correct Answers -
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. - Correct Answers -3 feet
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 - Correct Answers -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. - Correct Answers -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. - Correct Answers -6 awg
Manhole covers shall be over ______pounds or otherwise designated to require the use
of tools to open. - Correct Answers -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 -
Correct Answers -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 - Correct Answers -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. - Correct Answers -White or gray
In addition to the number of branch circuits required by other parts of the section
_______or more 20 A small appliance branch circuits shall be provided for all
receptacle outlets specified by 210.52B. - Correct Answers -Two
An individual branch circuit shall be provided for each _________receptacle required by
210.52 I. - Correct Answers -Air-Conditioning
Branch circuits required in a dwelling unit. - Correct Answers -1) small appliance branch
circuit
2) laundry branch circuit
3) bathroom branch circuits
4) Air-Conditioning (NYC AMEND)
The maximum voltage drop on branch circuit conductors is _________percent. - Correct
Answers -3%
Overall 5%
, The maximum voltage drop on feeder circuits is ________. - Correct Answers -2%
Overall 5%
Dwelling unit circuits running through another dwelling unit in common areas. What
percentage of change will require it to be brought up to current code? - Correct Answers
-50%
Receptacle outlets in floors shall not be counted as part of the required number of
receptacle outlets unless located within _________of the wall. - Correct Answers -18"
Outlets may be installed in a dwelling unit for specific appliance such as laundry
equipment. What is the maximum distance allowed between this outlet and the
appliance? - Correct Answers -6 feet
A receptacle connected to one of the dwelling unit small appliance branch circuits can
be used to supply a(n) __________in any of the rooms specified in 210.52B1. - Correct
Answers -Electric clock
How many receptacles are required within the perimeter of a balcony, deck or porch
with a usable area of less than 20 ft.² - Correct Answers -1
The number of receptacle outlets for guest rooms in hotels and motels shall not be less
than required for a dwelling unit. These receptacles can be located to be convenient for
permanent furniture layout but at least _________receptacle outlets shall be readily
accessible. - Correct Answers -2
At least one receptacle outlet shall be installed within _______of the top of a show
window for each 12 linear feet measured horizontally across its length. - Correct
Answers -18"
A 125 V single phase 15 or 20 amp rated receptacle outlet shall be installed at an
accessible location for the servicing of heating air-conditioning and refrigeration
equipment the receptacle shall be located on the same level and within _______of the
heating air-conditioning and refrigeration equipment the receptacle outlet shall not be
connected to the load side of the equipment disconnecting means. - Correct Answers -
25 feet
Permanently installed electric baseboard heaters equipped with factory install
receptacle outlets or outlets provided as a separate assembly by the manufacturer shall
be permitted as the required outlet or outlets for the wall space utilized by such
permanently installed heaters such receptacle outlets __________be connected to the
heater circuits. - Correct Answers -Shall not
Where a range, counter mounted cooking unit or sink is installed in an island or
peninsula countertop and the width of the countertop behind the range, counter
QUESTIONS AND ANSWERS
neutral point - Correct Answers -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 - Correct
Answers -Shall or shall not
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. - Correct Answers
-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
____________. - Correct Answers -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________________. - Correct Answers -4 feet
110.26 A1- Dead front assemblies working space - Correct Answers -30" for non-
electrical parts
36" for electrical parts
When installing receptacles around the pool they should be set back from the inside
walls of not less than ________ feet. - Correct Answers -6
When connected to a device over 2500 A but less than 5000A Busbars shall be sized
based on _______ amps per square inch for copper and _____ amps per square inch
for aluminum. - Correct Answers -800, 600
When connected to a device over 5000 Amperes Busbars shall be sized based on
_______ amps per square inch for copper and _____ amps per square inch for
aluminum. - Correct Answers -700, 525
,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. - Correct Answers
-30"
Large equipment - Correct Answers -1200 A or greater and over 6 feet wide
Large equipment means of egress - Correct Answers -Two means of egress 24" wide
by 6.5 feet tall unless the following condutions are met
1) unobstructed egress
2) Double the workspace
Headroom shall not be less than _______. - Correct Answers -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 -
Correct Answers -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 - Correct Answers -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 - Correct Answers -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. - Correct Answers -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 -
Correct Answers -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. - Correct Answers -
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. - Correct Answers -3 feet
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 - Correct Answers -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. - Correct Answers -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. - Correct Answers -6 awg
Manhole covers shall be over ______pounds or otherwise designated to require the use
of tools to open. - Correct Answers -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 -
Correct Answers -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 - Correct Answers -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. - Correct Answers -White or gray
In addition to the number of branch circuits required by other parts of the section
_______or more 20 A small appliance branch circuits shall be provided for all
receptacle outlets specified by 210.52B. - Correct Answers -Two
An individual branch circuit shall be provided for each _________receptacle required by
210.52 I. - Correct Answers -Air-Conditioning
Branch circuits required in a dwelling unit. - Correct Answers -1) small appliance branch
circuit
2) laundry branch circuit
3) bathroom branch circuits
4) Air-Conditioning (NYC AMEND)
The maximum voltage drop on branch circuit conductors is _________percent. - Correct
Answers -3%
Overall 5%
, The maximum voltage drop on feeder circuits is ________. - Correct Answers -2%
Overall 5%
Dwelling unit circuits running through another dwelling unit in common areas. What
percentage of change will require it to be brought up to current code? - Correct Answers
-50%
Receptacle outlets in floors shall not be counted as part of the required number of
receptacle outlets unless located within _________of the wall. - Correct Answers -18"
Outlets may be installed in a dwelling unit for specific appliance such as laundry
equipment. What is the maximum distance allowed between this outlet and the
appliance? - Correct Answers -6 feet
A receptacle connected to one of the dwelling unit small appliance branch circuits can
be used to supply a(n) __________in any of the rooms specified in 210.52B1. - Correct
Answers -Electric clock
How many receptacles are required within the perimeter of a balcony, deck or porch
with a usable area of less than 20 ft.² - Correct Answers -1
The number of receptacle outlets for guest rooms in hotels and motels shall not be less
than required for a dwelling unit. These receptacles can be located to be convenient for
permanent furniture layout but at least _________receptacle outlets shall be readily
accessible. - Correct Answers -2
At least one receptacle outlet shall be installed within _______of the top of a show
window for each 12 linear feet measured horizontally across its length. - Correct
Answers -18"
A 125 V single phase 15 or 20 amp rated receptacle outlet shall be installed at an
accessible location for the servicing of heating air-conditioning and refrigeration
equipment the receptacle shall be located on the same level and within _______of the
heating air-conditioning and refrigeration equipment the receptacle outlet shall not be
connected to the load side of the equipment disconnecting means. - Correct Answers -
25 feet
Permanently installed electric baseboard heaters equipped with factory install
receptacle outlets or outlets provided as a separate assembly by the manufacturer shall
be permitted as the required outlet or outlets for the wall space utilized by such
permanently installed heaters such receptacle outlets __________be connected to the
heater circuits. - Correct Answers -Shall not
Where a range, counter mounted cooking unit or sink is installed in an island or
peninsula countertop and the width of the countertop behind the range, counter
