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NYC MASTER ELECTRICIAN EXAM
2026/2027 ACTUAL QUESTIONS
WITH VERIFIED ANSWERS.
Type ____ is multiconductor cable identified for use as underground service entrance cable. - ANSWER-Type USE cable Knife switch rated for more than 1200 Amps at 250Volts or less
- 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 ? - 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 - 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. - ANSWER-30 Amps Where skin effect exist the ferromagnetic envelope shall be bonded at ____. - ANSWER-Both ends GFCI protection at a carnival is not required for equipment at circuit if the receptacle is of the ____type. - ANSWER-Locking The maximum voltage drop from service point to the last over- current device in a dwelling unit? - ANSWER-4% Which of the following statements best describe the grounding requirement for central vacuum outlet - 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
nonmetallic fitting or spacer on electronic equipment - ANSWER-Listed fitting Feeder and branch circuit conductors within ____ inches of a Ballast shall have an insulation temperature rating not lower than 90°C (194°F) unless supplying a luminaiere marked as suitable for a different insulation temperature - ANSWER- 3 inches Manufactured wiring systems constructed with type MC cable shall be supported and secured at intervals not exceeding ____ ft. - ANSWER-6 ft Where a main bonding jumper or a system bonding jumper is a screw only the screw shall be identified with a ____ that shall be visible with the screw installed - ANSWER-Green finish 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 - 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? - 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. - 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. - ANSWER- Class H Branch circuit conductors within ____inches of the ballast shall have an insulation temperature rating not lower it 90°C 194°F - ANSWER-3" inches The minimum radius of a field bend on trade size 1 "1/4 RMC is ____. - ANSWER- 8
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 ____. - 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 - ANSWER-3 duplex (6 single) The equipment system shall supply major electric ____ necessary for patient care and basic hospital operation - ANSWER-Equipment The essential electrical system in a healthcare facility shall be compromised of the - ANSWER-emergency system and the: equipment system Locations were flammable anesthetics are employed are class I,Division I locations that shall extend - 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 - ANSWER- Group C In anesthetic,areas health care equipment frequently in contact with bodies of persons shall not exceed ____ volts. - 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 - 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 ____. - ANSWER- 1 milliamperes Transfer eguipment, including automatic transfer switches,shall be - ANSWER-automatic, identified for emergency use , approved by the authority having jurisdiction
Emergency lighting emergency power or both must be available in the building within a time not exceeding ____seconds - 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 - 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 - 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 - ANSWER- The alternate source for emergency systems shall not be required to have ground-fault protection of equipment with automatic disconnecting means - 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 - ANSWER- Each patient bed location in critical care areas shall be supplied by at least 2 branch circuits. - 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 - 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 - ANSWER- There shall be a minimum of one 20A branch circuit for laundry outlets required by 210.52(f) - 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 - ANSWER- At least one 125v, single phase, 15A or 20A, duplex receptacle shall be provided in the elevator hoistway pit. - ANSWER- The feeder and branch circuit overcurrent devices shall be accessible by? Authorized persons only - 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 - 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. - 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" - ANSWER- In straight pull, the length of the box shall not be less than 8 times the trade size of the largest raceway. - 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. - ANSWER- What is true about installation of a Type 1 TVSS Can be connected to line side of service disconnect. - 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, - ANSWER- Which of the following statements best describes the grounding requirements for central vacuum outlet assemblies? Accessible
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 - 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 - ANSWER- What is the maximum run length of a 18AWG fixture wire that is tapped on to a 20A branch circuit? - 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. - 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. - ANSWER-50% According to the NEC, bare live parts are guarded from the public in the following methods except? Protected by fireproof curtain - 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. - 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. - ANSWER-
ENT and fitting can be encased in poured concrete, provided fitting identified for this purpose are used. - ANSWER- Where conductors of different system are installed in the same raceway, one system shall have a neutral having an outer covering of white or natural gray and each other system having a neutral shall have another covering of white with colored stripe other than green or distinguished by other suitable approved means - ANSWER- Where angle or U pulls are made, the distance between each inside the box and the opposite wall of the box shall not be less than six times the trade size of the largest raceway in row. - ANSWER- Lighting system covered by Article 411 shall have a power supply rated not more than ——amps and not more than 30V. - ANSWER-25 amps The demand factor for marina load calculations of 45 shore power receptacles is ____%. - ANSWER-50%
Which flexible cable is allowed to be used for a Electric Vehicle Charging Station? - ANSWER-EVJ Communication circuits shall have a minimum grounding conductors of ____AWG. - ANSWER-#12 AWG Lighting system operating at 30V or less shall not be installed within ____ feet of pools, spas, fountains, or similar locations. - 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. - ANSWER-30" inches The minimum clearance for overhead feeder conductors not exceeding 600V that pass over commercial areas subject to truck traffic is ____ feet. - ANSWER-18" feet
