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NYC MASTER ELECTRICIAN EXAM
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Type ____ is multiconductor cable identified for use as underground service entrance cable. - Precise Answer ✔✔Type USE cable Knife switch rated for more than 1200 Amps at 250Volts or less - Precise 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? - Precise 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 - Precise 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. - Precise Answer ✔✔30 Amps Where skin effect exist the ferromagnetic envelope shall be bonded at ____. - Precise Answer ✔✔Both ends
GFCI protection at a carnival is not required for equipment at circuit if the receptacle is of the ____type. - Precise Answer ✔✔Locking The maximum voltage drop from service point to the last over-current device in a dwelling unit? - Precise Answer ✔✔4% Which of the following statements best describe the grounding requirement for central vacuum outlet - Precise 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 - Precise Answer ✔✔Are permitted Patient care areas of healthcare facilities ____ areas such as business offices, corridors, lounges ,day rooms, or similar areas - Precise Answer ✔✔Do not include The patient care area is any portion of the healthcare facility where patients are intended to be ____or ____. - Precise Answer ✔✔Examined or treated
Plug fuses a 15 amperes and lower rating shall be identified by a ____ configuration of the window, cap, or other prominent part to distinguish them from fuses of higher ampere rating - Precise Answer ✔✔Hexagon The load for household electric clothes dryer's in a dwelling unit(s) shall be either ____ watts (volt-amperes) or the nameplate rating, which ever is larger, for each dryer served? - Precise Answer ✔✔5000 watts Service conductors installed as unjacketed multiconductor cable shall have a minimum clearance of ____ windows that are designed to be opened, doors, porches, stairs fire escape or similar locations. - Precise Answer ✔✔3 ft (36 inches) —— Cartridge fuses of the renewable type shall be permitted to be used only for replacement in existing installation is where there is no evidence of over-fusing or tampering. - Precise Answer ✔✔Class H Branch circuit conductors within ____inches of the ballast shall have an insulation temperature rating not lower it 90°C 194°F - Precise Answer ✔✔3" inches The minimum radius of a field bend on trade size 1 "1/4 RMC is ____. - Precise Answer ✔✔ 8 In a dwelling unit which appliance is allowed to have a 24"inch cord with Attachment ground plug? - Precise 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 - Precise Answer ✔✔Included in the manufactures instructions Which flexible cable is Allowed to be used for electric vehicle charging station 300 Volts? - Precise Answer ✔✔EVJ Type ____ fuse adapters shall be designed so that once inserted in a fuse holder that cannot be removed - Precise 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 - Precise 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 ____. - Precise 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 - Precise Answer ✔✔3 duplex (6 single)
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 ____. - Precise Answer ✔✔1 milliamperes Transfer eguipment, including automatic transfer switches,shall be - Precise Answer ✔✔automatic, identified for emergency use , approved by the authority having jurisdiction Automatic transfer switches shall be ____ operated and ____ held - Precise Answer ✔✔Electrically operated and mechanically Audible and visual signal devices for an emergency system shall be provided,where practicable, for the purpose(s) of indicating that - Precise Answer ✔✔the battery is carrying load, derangement of emergency source, that the battery charger is not functioning Wiring from an emergency source to emergency loads shall ____ ____ ____ ____ of all other wiring - Precise Answer ✔✔Be kept entirely independent of all other wiring Emergency circuit wiring shall be permitted to enter which of the following types of equipment with normal circuit wiring? - Precise Answer ✔✔Transfer switches, exit or emergency luminaries supplied from two sources
Emergency circuit wiring must be designed and located in such a manner so as to minimize the possibility of failure because of ____, ____, ____. - Precise Answer ✔✔Vandalism,flood,fire. Emergency lighting emergency power or both must be available in the building within a time not exceeding ____seconds - Precise Answer ✔✔10 seconds A storage battery supplying emergency lighting and power shall maintain not less than 87.5% of full fault is that total low for a period of at least 1.5 hours - Precise Answer ✔✔ Where an internal combustion engine is used as the prime mover for the emergency system and on-site fuel supply shall be provided for not less than 6 hours of full-demand operation of the system - Precise Answer ✔✔ 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 - Precise Answer ✔✔ The alternate source for emergency systems shall not be required to have ground-fault protection of equipment with automatic disconnecting means - Precise Answer ✔✔ They equipment grounding terminal buses of the normal and essential branch-circuit panelboards serving the same individual patient care
minimum 30ft. Of conductor distance from the service or separately derived system disconnect - Precise Answer ✔✔ Access opening in a manhole shall be not less than 26" - Precise Answer ✔✔ In a dwelling unit which appliance is allowed to have a 24" cord with attachment ground plug? Combination range hood/Microwave - Precise 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. - Precise 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 - Precise Answer ✔✔ At least one 125v, single phase, 15A or 20A, duplex receptacle shall be provided in the elevator hoistway pit. - Precise Answer ✔✔ The feeder and branch circuit overcurrent devices shall be accessible by? Authorized persons only - Precise 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 - Precise Answer ✔✔ A door used by personnel to exit the work space that is less than 25' feet from the working space shall, swing outward with simple pressure. - Precise Answer ✔✔ Cables with entirely nonmetallic sheath (ROMEX) shall be permitted to enter the top of a surface mounted enclosure through one or more non flexible raceways not less than 18" - Precise Answer ✔✔ In straight pull, the length of the box shall not be less than 8 times the trade size of the largest raceway. - Precise Answer ✔✔ A separate branch circuit shall supply the elevator hoistway pit lighting and receptacle. The required lighting shall not be connected to the load side of a ground-fault circuit interrupter. - Precise Answer ✔✔ What is true about installation of a Type 1 TVSS Can be connected to line side of service disconnect. - Precise Answer ✔✔ A load demand factor of 75% is permitted for four or more appliances fastened in place such as waste disposal, dishwashers, trash compactors, water heater, etc, - Precise Answer ✔✔
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 - Precise 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 - Precise Answer ✔✔ What is the maximum run length of a 18AWG fixture wire that is tapped on to a 20A branch circuit? - Precise 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. - Precise 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. - Precise Answer ✔✔50%
According to the NEC, bare live parts are guarded from the public in the following methods except? Protected by fireproof curtain - Precise 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. - Precise 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. - Precise 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. - Precise 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. - Precise 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 input full-load amperes listed on the phase converter nameplate. - Precise Answer ✔✔
The demand factor for marina load calculations of 45 shore power receptacles is ____%. - Precise Answer ✔✔50% Which flexible cable is allowed to be used for a Electric Vehicle Charging Station? - Precise Answer ✔✔EVJ Communication circuits shall have a minimum grounding conductors of ____AWG. - Precise Answer ✔✔#12 AWG Lighting system operating at 30V or less shall not be installed within ____ feet of pools, spas, fountains, or similar locations. - Precise 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. - Precise Answer ✔✔30" inches The minimum clearance for overhead feeder conductors not exceeding 600V that pass over commercial areas subject to truck traffic is ____ feet. - Precise 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. - Precise 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. - Precise Answer ✔✔6'foot 6"inches (78" inches) Rigid metal conduit that is directly buried outdoors shall have at least ____inches of cover. - Precise 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. - Precise Answer ✔✔ Infrared Lamps for commercial and industrial heating appliances shall have over-current protection not exceeding ____ Amps. - Precise Answer ✔✔50Amps Panel boards equipped with snap switches rated at ____ or less shall have over-current protection not exceeding 200A. - Precise 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. - Precise Answer ✔✔12" inches
A hospital is a building or portion there of used for medical, psychiatric, obstetrical, or surgical care, on a 24-hour basis, of four or more patients
- Precise Answer ✔✔ The dimensions of working space for access to live parts operating at 300V, nominal to ground, where there are exposed live parts on both sides of the workspace is ____ feet. - Precise Answer ✔✔4' feet Where conductors or cables are installed in conduits exposed to direct sunlight on or above rooftops, the ambient temperature shall be increased by 60F where the conduits are less than 1/2"inch from the rooftop. - Precise Answer ✔✔ What is the feeder or service calculated load for a waste disposal (940VA),dishwasher (1250VA), a trash compactor (1100VA), and a water heater (4500VA)? 5843VA - Precise Answer ✔✔ Exposed live parts of motors and controller operating at ____ Volts or more between terminals shall be guarded against accidental contact by enclosure or by location. - Precise Answer ✔✔50Volts The authority having jurisdiction has the responsibility for making interpretations of rules, for deciding upon the approval of equipment and materials, for waiving specific requirements in the code permitting alternate methods and materiel if safety is maintained. - Precise 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. - Precise Answer ✔✔24"inches and not more than 4'feet In NEC, the words "____, ____ ____ indicate a mandatory requirement.
- Precise 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. - Precise 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. - Precise 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. - Precise 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 ____ ____ ____. - Precise Answer ✔✔Separated by barrier
