NYC Master Electrical Exam
What is the minimum lateral service conductor size allowed for a dwelling unit?
#4 copper & #2 Aluminum
How many receptacles are required within the perimeter of a balcony, deck or porch with a usable area of less than 20 ft.²
1
Banks and office buildings the receptacle loads shall be calculated to be the larger of _______ or ________.
1 VA per ft^2 or 180VA
Branch circuits required in a dwelling unit.
1) small appliance branch circuit 2) laundry branch circuit 3) bathroom branch circuits 4) Air-Conditioning (NYC AMEND)
Open conductors which are not service entrance cable's shall not be installed less than ______________ feet above grade level.
10
Open individual conductors in overhead spans shall not be smaller than _______________ for spans up to _______in length unless supported by a messenger wire.
10 copper/8 Aluminum 50 feet
In dwelling unit hallways of _______or more in length shall have at least one receptacle outlet.
10 feet
Manhole covers shall be over ______pounds or otherwise designated to require the use of tools to open.
100 pounds
Fixed electric space heating loads shall be calculated at _________of the total connected load however in no case shall a feeder or service load current rating be less than the rating of the largest branch circuit supplied.
100%
The main factors for non-dwelling receptacle loads first 10 kVA or less at ______remainder over 10 kVA at _______.
100% 50%
Ground fault protection of equipment shall be provided for solidly grounded way electrical services of more than 150 V to ground, but not exceeding 600 V fees the fees for each service disconnecting means rated __________.
1000 Amps
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.
1000 feet
The vertical clearance from ground level over a residential driveway for overhead service conductors not subject to truck traffic and are less than 300 V to ground shall be _________feet.
12
Overhead feeder conductors shall have a minimum _________vertical clearances over residential property and driveways as well as those commercial areas not subject to truck traffic where the voltage is limited to 300 V to ground.
12 feet
Open conductors installed outside shall be separated from open conductors of other circuits or systems by not less than _______.
12 inches
Underground service conductors that are not in case and Concrete and that are buried 30 inches or more below grade, she'll have their location identified by a warning ribbon that is placed in the trench at least ________inches above the Underground installation for 40 KV.
12 inches
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 mounted cooking unit or sink is less than ________the range, counter mounted cooking unit or sink is considered divide the countertop space into two separate countertop spaces.
12"
Sign in outline lighting outlets shall be calculated at a minimum of ____volt amperes for each required branch circuit specified in 600.5 A.
1200
Large equipment
1200 A or greater and over 6 feet wide
Branch circuit conductor that supply a single motor used in a continuous duty application shall have an ampacity of not less than ______percent of the motors full load current.
125%
The minimum feeder-circuit conductor size, before the application of any adjustment or correction factor, shall have an allowable ampacity not less than the non-continuous load plus _______of the continuous load.
125%
Overhead conductors and cables she'll have a clearance of _______ where the voltage exceeds 300 V to ground.
15 feet
Track lighting calculations ______ shall be included for every 2 feet of lighting track or fraction there of.
150 VA
A load of not less than ______volt amperes shall be included for each to wire laundry branch circuit.
1500
Small appliance circuit load in each dwelling unit the load shall be calculated at ______VA for each to wire small appliance branch circuit as covered by 210.11 C1.
1500
For Air conditioning circuits a load of not less than _____shall be included with each two wire circuit. This load shall be permitted to be included with the general lighting load and subject to section 220.42 in table 220.42.
1500 VA
The minimum clearance for overhead feeder conductors not exceeding 600 V that passover commercial areas subject to truck traffic is _________.
18 feet
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.
18"
Receptacle outlets in floors shall not be counted as part of the required number of receptacle outlets unless located within _________of the wall.
18"
Show windows at least one receptacle outlet shall be installed within ______of the top of the show window for each ______or major fraction there of of show window area measured horizontally at its maximum width.
18" 12 feet
For other than dwelling occupancy's, banks, or office buildings each receptacle outlet shall be calculated at not less than ________ VA.
180
Receptacle outlets shall be calculated at not less than _____volt amperes for each single or for each multiple receptacle on a yoke.
180
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.
2
Conductors are considered outside a building when they are buried under not less than _______.
2 inches
The maximum voltage drop on feeder circuits is ________.
2% Overall 5%
Receptacle outlets shall be located above but not more than ________ above the countertop.
20 inches
Show windows shall be calculated at _______VA per 1 foot of show window
200
Where it is impractical to locate the service head above the point of attachment, the service head location shall be permitted not farther than _________ from the point of attachment.
24 inches
Power conductors on poles above communication circuits shall have a separation of ________ 300 V or less and ________over 300V.
24" 30"
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.
25 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
26" x 22" 26"
Up to ________sets of three wire feeders or two sets of four wire or five wire feeders shall be permitted to utilize a common neutral.
3
Service conductors installed as unjacketed multi conductor cable shall have a minimum clearance of _________from windows that are designed to be opened, doors, porches, stairs, fire escapes or other similar locations.
3 feet
In dwelling units at least one receptacle outlet shall be installed in bathrooms within __________of the outside edge of each basin or installed on the side or face of the basin cabinet not more than ______below the countertop.
3 feet 12 inches
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.
3 feet 2-1/2 feet
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 ____________.
3 feet 6 inches
The maximum voltage drop on branch circuit conductors is _________percent.
3% Overall 5%
Power conductors on poles below communication conductors shall have a separation of ________.
30 inches
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
30 inches
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
30 inches and 6.5 feet
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.
30"
110.26 A1- Dead front assemblies working space
30" for non-electrical parts 36" for electrical parts
A load demand factor of 75% is permitted for _____ or more appliances fastened in place such as waste disposal's, dishwashers, trash compactor's, water heaters, etc.
4
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________________.
4 feet
Open conductors installed outside shall be separated from open conductors of other circuits or systems by not less than ________.
4 inches
The maximum voltage drop from service point to the last overcurrent device in a dwelling unit is ___________.
4%
Where service equipment totaling 1000 kVA or larger is installed separately or as part of the switchboard the room in which such switchboard is located shall be constructed of non-combustible materials having a two hour fire rating and Shall be of dimensions adequate to house the switchboard and to provide the following minimum clearance is at least ______ feet in front of the switchboard if it is in one line and at least ______feet in front of the board if the boards are installed facing each other.
5/7
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
50 volts 4) by elevation of 8 feet or more above the floor or other working surface
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?
50%
The load for household electric clothes dryer's in a dwelling unit shall be either _________or the nameplate rating whichever is larger for each dryer served.
5000 watts
The feeder conductor anpacity shall not be less than that of the service conductors where the feeder conductors carry the total load supplied by service conductors with an ampacity of ______ amperes or less.
55
The feeder conductor and Pacitti shall not be less than that of the service entrance conductors where the feeder conductors carry the total load supplied by service conductors with an ampacity of _______or less.
55A
An insulated grounded conductor of ________or smaller shall be identified by continuous white or gray outer finish, or by three continuous white stripes on other than green insulation along its entire length.
6 awg
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.
6 awg
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?
6 feet
Equipment associated with the electrical installation can be located above or below other electrical equipment within their working space when the associated equipment does not extend more than ____________from the front of the electrical equipment.
6 inches
Balconies decks and porches shall have one receptacle installed not more than _________above the balcony deck or porch surface.
6-1/2 feet
For one family dwelling at each unit of a two family dwelling that is at grade level at least one receptacle outlet accessible while standing at grade level and located not more than _____above grade shall be installed at the front and back of the dwelling.
6-1/2 feet
The minimum headroom of working spaces about motor control centers is _________.
6-1/2 feet
Headroom shall not be less than _______.
6.5 feet or the height of the equipment
It shall be permissible to apply a demand factor of ______ to a nameplate rating load of ________or more appliances fastened in place other than electric ranges clothes dryers space heating equipment or air-conditioning equipment that are served by the same feeder or service in a one family to family or multi family dwelling.
75% 4
A fence shall not be less than ______feet in height
8 feet
Service drops and install over roofs shall have a vertical clearance of _______above the roof surface unless a lesser distance is permitted by an exception.
8 feet
Overhead conductors above roof still have a vertical clearance above the roof of _________and not less than ________in all directions from the edge of the roof.
8 feet 3 feet
What is the minimum thickness of a transformer vault floor meet up with bricks or cement filled blocks?
8 inches
An individual branch circuit shall be provided for each _________receptacle required by 210.52 I.
Air-Conditioning
What is true about installation of type 1 TVSS?
Can be connected to the line side of the service disconnect
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.
Electric clock
__________is term indicating that there is an intentional delay in the tripping action of the circuit breaker which decreases as the magnitude of the current increases.
Inverse time
At least ______receptacle outlet in addition to those for specific equipment shall be installed in each basement and each detached garage and in each detached garage with electric power.
One
Laundry areas in dwelling units at least ____ receptacle outlet shall be installed for the laundry.
One
We are more than one building or other structure is on the same property and under single management each additional building or other structure that is served by a branch circuit or feeder on the load side of the service disconnecting means shall be supplied by _______or branch circuit.
One
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.
Orange
When the service disconnecting means is a power operated switch or circuit breaker it shall be able to be opened by hand in the event of a ________________.
Power supply failure
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.
Protective barrier of fixed ladder
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.
Shall not
In the NEC the words ___________indicate a mandatory requirement
Shall or shall not
Three-way switching in stairwells is required where the stairway between floor levels Has ______risers or more.
Six
Open conductors shall be ______on glass or porcelain knobs, racks, brackets or stain insulators.
Supported
neutral point
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 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.
Two
In no case shall the feeder or service calculated load be less than the sum of the largest ______kitchen equipment loads.
Two
Network compartments shall have at least ________means of access. Each door she'll have an access that leads to a legal exit.
Two
Where ______or more single phase ranges are supplied by a three phase 4 wire feeder or service the total load Shelby calculated on the basis of twice the maximum number connected between any two phases.
Two
Large equipment means of egress
Two means of egress 24" wide by 6.5 feet tall unless the following condutions are met 1) unobstructed egress 2) Double the workspace
At least one ________controlled lighting outlet shall be installed in every habitable room and bathroom.
Wall switch
For dwelling units attached garages and detached garages with electric power at least one _______ lighting outlet shall be install to provide illumination on the exterior side of the outdoor entrance or exit with grade level access.
Wall switch controlled
For screw shell devices with attach leads the conductor attached to the screw shell shall have a _______or ________finish.
White or gray
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
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
White with colored Stripe other than green or distinguish by other suitable approved means
