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NYC Master Electrician Exam – Electrical Licensing
& Code Compliance – study material
Type ____ is multiconductor cable identified for use as underground service entrance cable. - correct answer ✔✔Type USE cable Knife switch rated for more than 1200 Amps at 250Volts or less - correct answer ✔✔Can be used only as isolating switch, shall not be opened under load Track lighting with outlets in a bathroom is not allowed because? - correct answer ✔✔Track lighting has receptacle Where internal combustion engines are used as the prime motor, an on site fuel supply shall be provided with an on premise fuel supply sufficient for not less than ____ hours full demand operation of the system - correct answer ✔✔6 hours Fixed in place X-ray equipment properly supplied by a branch circuit rated at not over ____ amperes shall be permitted to be supplied through a suitable attachment plug cap and hard service cable cord. - correct answer ✔✔ 30 Amps Where skin effect exist the ferromagnetic envelope shall be bonded at ____. - correct answer ✔✔Both ends GFCI protection at a carnival is not required for equipment at circuit if the receptacle is of the ____type. - correct answer ✔✔Locking The maximum voltage drop from service point to the last over-current device in a dwelling unit? - correct answer ✔✔4%
Which of the following statements best describe the grounding requirement for central vacuum outlet - correct answer ✔✔Accessible non current carrying metal parts are required to be connected to an equipment grounding conductor. In healthcare facilities, patient bed receptacles located in general care areas shall be supplied by at least two branch circuits, which ____permitted to originate from two separate transfer switches on the emergency system - correct answer ✔✔Are permitted Patient care areas of healthcare facilities ____ areas such as business offices, corridors, lounges ,day rooms, or similar areas - correct answer ✔✔Do not include The patient care area is any portion of the healthcare facility where patients are intended to be ____or ____. - correct answer ✔✔Examined or treated Each general care area patient bed location in a healthcare facility must be provided with four ____ or ____ duplex receptacles - correct answer ✔✔Single or two A hospital is a building or portion thereof used for medical, psychiatric,obstetrical , or surgical, care on a 24 hour basis of ____ or more patients - correct answer ✔✔Four Where installed to reduce electrical noise for electronic equipment, electrical continuity of the metal raceways shall not be required and metal raceway can terminate a (an) ____ nonmetallic fitting or spacer on electronic equipment - correct answer ✔✔Listed fitting
The minimum radius of a field bend on trade size 1 "1/4 RMC is ____. - correct answer ✔✔ 8 In a dwelling unit which appliance is allowed to have a 24"inch cord with Attachment ground plug? - correct answer ✔✔Combination range hood/microwave oven Type 3 Surge Protective devices can be installed on the load side of a branch circuit overcurrent device up to the equipment served.if ____ the type 3 SPD connection must be a minimum 30'ft of conductor a distance from the service or separately derived system disconnect - correct answer ✔✔Included in the manufactures instructions Which flexible cable is Allowed to be used for electric vehicle charging station 300 Volts? - correct answer ✔✔EVJ Type ____ fuse adapters shall be designed so that once inserted in a fuse holder that cannot be removed - correct answer ✔✔Type S fuse Service drops Installed over roof shall have a vertical clearance of ____ above the roof surface, and unless a lesser distance is permitted by and exceptions
- correct answer ✔✔8'ft Class 2 and Class 3 circuits shall not be placed in any enclosure, raceway, cable, or similar fittings with conductors of Class 1 or electric light or power conductors, unless ____. - correct answer ✔✔Separated by barrier In the critical care areas of health care centers, each patient bed shall be provided with a minimum of ____ duplex receptacles - correct answer ✔✔ 3 duplex (6 single)
The equipment system shall supply major electric ____ necessary for patient care and basic hospital operation - correct answer ✔✔Equipment The essential electrical system in a healthcare facility shall be compromised of the - correct answer ✔✔emergency system and the: equipment system Locations were flammable anesthetics are employed are class I,Division I locations that shall extend - correct answer ✔✔upwards to a level 5'ft above the floor In a healthcare facility receptacles and attachment plugs in a hazardous (classified) location with an anesthizing area shall be listed for use in class I group ____ locations - correct answer ✔✔Group C In anesthetic,areas health care equipment frequently in contact with bodies of persons shall not exceed ____ volts. - correct answer ✔✔10 Volts In anesthetic areas, low-voltage equipment that is frequently in contact with the bodies of persons or has exposed current-carrying elements shall - correct answer ✔✔operate on an electrical potential of 10 volts or less,be moistur- resistant, be approved as intrinsically safe or double-insulated equipment. In a healthcare facility, the maximum internal current permitted to flow through a line isolated monitor,when any point of the isolated system is grounded, shall be ____. - correct answer ✔✔1 milliamperes Transfer eguipment, including automatic transfer switches,shall be - correct answer ✔✔automatic, identified for emergency use , approved by the authority having jurisdiction
Unit equipment (battery packs) shall be on the same branch circuit as that serving the normal lighting in the area and connected ahead of any local switches - correct answer ✔✔ The alternate source for emergency systems shall not be required to have ground-fault protection of equipment with automatic disconnecting means - correct answer ✔✔ They equipment grounding terminal buses of the normal and essential branch-circuit panelboards serving the same individual patient care vicinity shall be connected together with an insulated continuous copper conductor not smaller than 10 AWG - correct answer ✔✔ Each patient bed location in critical care areas shall be supplied by at least 2 branch circuits. - correct answer ✔✔ Individual branch circuit shall not be required for portable mobile and transportable medical x-ray equipment requiring a capacity of not over 60 amperes - correct answer ✔✔ The ampacity of supply branch circuit conductors and the current rating of all the current protective devices for x-ray equipment shall not be less than 50 of the momentary rating or 100 percent of the longtime rating, whichever is greater - correct answer ✔✔ There shall be a minimum of one 20A branch circuit for laundry outlets required by 210.52(f) - correct answer ✔✔ Indoor electrical vehicle charging sites, unless specifically listed for the purpose and location,the coupling means of the electric vehicle supply equipment shall be stored or located at a height of not less than 18"Inches and not more than 4'FT - correct answer ✔✔
Type 3 surge protective devices can be installed on the load side of a branch circuit overcurrent device up to the equipment served. If included in the manufacture's instructions, the type 3 SPD connection must be a minimum 30ft. Of conductor distance from the service or separately derived system disconnect - correct answer ✔✔ Access opening in a manhole shall be not less than 26" - correct answer ✔✔ In a dwelling unit which appliance is allowed to have a 24" cord with attachment ground plug? Combination range hood/Microwave - correct answer ✔✔ Knife switches rated for more than 1200 amps at 250v or less, can be used only as isolating switch, shall not be opened under load. - correct answer ✔✔ Two or more 20A small appliance branch circuits shall be provided to supply power for receptacles outlets in the dwelling unit kitchen,dining room,breakfast room, pantry, or similar dining areas - correct answer ✔✔ At least one 125v, single phase, 15A or 20A, duplex receptacle shall be provided in the elevator hoistway pit. - correct answer ✔✔ The feeder and branch circuit overcurrent devices shall be accessible by? Authorized persons only - correct answer ✔✔ Receptacle outlet in floor shall not be counted as part of the required number of receptacle outlets unless located within 18" of the wall - correct answer ✔✔
The maximum total voltage drop on branch-circuit conductors is 3% percent.
- correct answer ✔✔ Which of the following shall not be connected to the life safety branch in a hospital? General illumination - correct answer ✔✔ How many receptacles are required within the perimeter of a balcony, deck or porch with a useable area of less than 20 square FT. 1 - correct answer ✔✔ Branch circuit conductors within 3in. Of a ballast shall have an insulation temperature rating not lower than 90 degrees celsius (194 degrees Fahrenheit) - correct answer ✔✔ A multi family building has 12 units. The system voltage is 120/240V, single- phase. Each 1,500 sq ft unit contains the following: Dishwasher 1.50 kva Water Heater 4kw Dryer 4.50 kW Washing Machine 1.20 KVA Range 14.45 kw A/C (230V) 3hp A/C fan motor 1/8 hp (334) Heat 5kw - correct answer ✔✔ Which of the following are not permitted for the protection of equipment in electrical vaults? Stud walls covered with wallboard having a 3 hr rating - correct answer ✔✔
What is the maximum run length of a 18AWG fixture wire that is tapped on to a 20A branch circuit? - correct answer ✔✔50' ft. Each general care area, patient bed location shall be provided with a minimum of four receptacles, which can be single, duplex, or a combination with each duplex counting as two receptacles. - correct answer ✔✔ AC or DC general use snap switches may be used for control of inductive loads not exceeding ____of the ampere rating of the switch at the applied voltage. - correct answer ✔✔50% According to the NEC, bare live parts are guarded from the public in the following methods except? Protected by fireproof curtain - correct answer ✔✔ As per New York City NEC in addition to the number of branch circuits required in a dwelling unit an individual branch circuits shall be provided for each air conditioner receptacle. - correct answer ✔✔ Lighting truss shall not be installed less than 5ft above the finished floor except where protected from physical damage or where the track operates at less than 30V RMS, open-circuit voltage. - correct answer ✔✔ The conductors used to connect the surge protective device to the line or bus and to ground shall not be any longer than necessary and shall avoid unnecessary bends. - correct answer ✔✔ Panel boards supplied by a three-phase, 4-wire, delta-connected system shall have the phase with higher voltage to ground (high leg) connected to the B phase. - correct answer ✔✔ For phase converters serving variable loads, the ampacity of the single- phase supply conductors shall not be less than 125% of the single-phase
Which flexible cable is allowed to be used for a Electric Vehicle Charging Station? - correct answer ✔✔EVJ Communication circuits shall have a minimum grounding conductors of ____AWG. - correct answer ✔✔#12 AWG Lighting system operating at 30V or less shall not be installed within ____ feet of pools, spas, fountains, or similar locations. - correct answer ✔✔10'ft The working space in front of the electric equipment shall not be less than ____ inches wide, or the width of the equipment, whichever is greater. - correct answer ✔✔30" inches The minimum clearance for overhead feeder conductors not exceeding 600V that pass over commercial areas subject to truck traffic is ____ feet. - correct answer ✔✔18" feet A limited care facility is an area used on a ____hour basis for the housing of four or more persons who are incapable of self-preservation because of age, physical limitation due to accident or illness, or mental limitations, mental illness, or chemical dependency. - correct answer ✔✔24hr For equipment rated 1200A or more and over 6ft wide that contains over- current devices, switching devices, or control devices, there shall be one entrance to and egress from the required working space not less than 24inches. Wide and ____ nches high at each end of the working space. - correct answer ✔✔6'foot 6"inches (78" inches) Rigid metal conduit that is directly buried outdoors shall have at least ____inches of cover. - correct answer ✔✔6" inches
In a health care facility, receptacles and attachment plugs in a hazardous (classified) location within an anesthetizing are shall be listed for use in Class 1, GroupC. - correct answer ✔✔ Infrared Lamps for commercial and industrial heating appliances shall have over-current protection not exceeding ____ Amps. - correct answer ✔✔50Amps Panel boards equipped with snap switches rated at ____ or less shall have over-current protection not exceeding 200A. - correct answer ✔✔30Amps For cord and plug connected electric vehicle supply equipment is used, the interrupting devices of a listed personnel protection system shall be provided and shall be located in the power supply cable not more than ____inches from the attachment plug. - correct answer ✔✔12" inches Equipment associated with electrical installation can be located above or below other electrical equipment within their working space when the associated equipment does not extend more than —— inches from the front of the electrical equipment. - correct answer ✔✔6" inches A fixed storage type water heater of 120 gallons or less shall be considered a continuous, load and the branch circuits conductors shall have an ampacity of ____ % of the nameplate current rating - correct answer ✔✔125% Ground-fault protection of equipment shall be provided from solidly grounded which electrical services of more than 150V to ground, but not exceeding 600V phase for each service disconnecting means rated at 1,000A - correct answer ✔✔
materials, for waiving specific requirements in the code permitting alternate methods and materiel if safety is maintained. - correct answer ✔✔ Outdoor electrical vehicle charging sites, unless specifically listed for the purpose and location, the coupling means of the electric vehicle supply equipment shall be stored or located at a height of not less than ____ inches and not more than ____ft. - correct answer ✔✔24"inches and not more than 4'feet In NEC, the words "____, ____ ____ indicate a mandatory requirement. - correct answer ✔✔"Shall, Shall Not" When the code uses the words "____ be____" it means the identified actions are allowed but not required, and they may be options or alternative methods. - correct answer ✔✔"Shall be Permitted" For switchboard that are not totally enclosed, in a space of ____"inches or more shall be provided between the top of the switchboard and any combustible ceiling. - correct answer ✔✔36"inches (3ft) Overhead feeder conductors shall have a minimum ____feet vertical clearance over residential property and driveways, as well as those commercial areas not subject to truck traffic, where the voltage is limited to 300V to-ground. - correct answer ✔✔12'feet Class 2 and Class 3 circuits shall not be placed in any enclosure, raceway, cable, or similar fittings with conductors of Class 1 or electric light or power conductors, unless ____ ____ ____. - correct answer ✔✔Separated by barrier The feeder conductor ampacity shall not be less than that of the service- entrance conductors with an ampacity of ____Amps or less - correct answer ✔✔50Amps or less
Where cables or nonmetallic raceways are installed through bored holes in joist, rafters, or wood members, holes shall be bored so that the edge of the hole is not less than ____ from the nearest edge of the wood member. - correct answer ✔✔1 and 1/4"inch Equipment installed in hazardous (classified) locations shall be marked to show the Class, group, temperature class (T Code) or operating temperature at a 40C or 104F ambient temperature. - correct answer ✔✔ Which of the following statements best describes the grounding requirements for central vacuum outlet assemblies? Accessible non current carrying metal parts required to be connected to an equipment grounding conductor. - correct answer ✔✔ Where installed to reduce electrical noise for electronic equipment, electrical continuity of the metal raceway shall not be required and the metal raceway can terminate to a listed non metallic fitting or spacer on the electronic equipment. - correct answer ✔✔ An insulated grounded conductor of #6AWG or smaller shall be identified by a continuous white or gray outer finish, or by three continuous white stripe on other than green insulated along its entire length - correct answer ✔✔ The required working space for access to live parts operating at 300V to ground, where there are exposed live parts on one side and grounded parts on the side is 3 1/2'ft - correct answer ✔✔ Open conductors installed outside shall be separated from open conductors of other circuits or systems by not less than ____inches. - correct answer ✔✔4'inches
Type S fuse adapters shall be designed so that once inserted in a fuse holder they can not be removed. - correct answer ✔✔ 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? 6ft - correct answer ✔✔ The connection of the system bonding jumper for a separate derived system shall be made at any single point on the separately derived system from the source to the first system disconnecting means or over-current device. - correct answer ✔✔ The authority having jurisdiction, shall conduct or witness an acceptance test of the complete emergency system upon installation and periodically afterward. - correct answer ✔✔ For a portable motor rated at 1/3hp or less, the controller shall be permitted to be an attachment plug and receptacle. - correct answer ✔✔ A separation of at least ____ft shall be maintained between communication wires and cables on buildings and lighting conductors, where practicable. - correct answer ✔✔6'ft Type ____ is a multiconductor cable identified for use as underground service- entrance cable. - correct answer ✔✔USE Fixed in place X-ray equipment properly supplied by a branch circuit rated at not over ____Amps shall be permitted to be supplied through a suitable attachment plug cap and hard service cable or cord. - correct answer ✔✔30Amps
When 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 —— —— ——.
- correct answer ✔✔power supply failure. Open wiring on insulator is a ____ wiring method using cleats, knobs, and flexible tubing for protection and support of single insulated conductors run in or on buildings. - correct answer ✔✔Permanent Inverse time is a term indicated that is an intentional delay in the tripping action of the circuit breaker, which decreases as the magnitude of the current increases. - correct answer ✔✔ An insulated grounded conductor of 6AWG 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 answer ✔✔ 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 6'inches from the front of the electrical equipment. - correct answer ✔✔ How many receptacle are required within the perimeter of a balcony, deck or porch with a usable area of less than 20 SQ.ft. One - correct answer ✔✔ The minimum headroom of working spaces about motor control center is 6 1/2ft. - correct answer ✔✔ At least one entrance to enclosures for electrical installations shall not be less than 30 inches wide and 6ft high shall be provided to give access to the working space around the electrical equipment over 600V nominal. - correct answer ✔✔
