NYC Master Electrician Exam 2026/2027 | Department of Buildings Licensing Test | Latest Questions & Verified Answers | Grade A

NYC Master Electrician Exam 2026/2027 | Department of Buildings Licensing Test | Latest Questions & Verified Answers | Grade A Given: Two separate Services are identical in voltage and amperage, except that one service serves only motor - loads and the other serves lighting loads only. in the event of a short circuit in these services, the available short circuit current will be: A) The same in either service B) Higher in the motor-load service C) Higher in the lighting -load service D) 25% greater in the service for the motor load The same in either service (general knowledge) A device that requires a portable ladder for access, but does NOT require removal of the structure, is defined as being? A) Accessible B) Unaccessible C) Simi- accessible D) Readily accessible Accessible (article 100) Which of the following is a multi - wire branch circuit? A) Multiple conductors made up in the form of a cable B) Conductors used to connect the non - current - carrying metal parts of appliances C) A circuit that direct connects the service equipment to the main circuit breaker D) A circuit that consists of two or more ungrounded conductors and a grounded conductor A circuit that consists of two or more ungrounded conductors and a grounded conductor. (article 100) A listed assembly of two , three, or four insulated circuit conductors within a NONMETALLIC jacket, an extruded thermoplastic covering, or a sealed nonmetallic covering that can be mounted directly on the surface of walls and ceilings is the definition for: A) Flat conductor cable B) Flat cable assemblies C) Nonmetallic sheath cable D) Concealable nonmetallic extension Concealable nonmetallic extension (article 382.2) A group of devices that serve to govern in some predetermined manner the electric power delivered to the apparatus to which it is connected is a ? A) Device B) Controller C) Disconnect D) Circuit breaker Controller (article 100) For a service panel fed by parallel 3/0 AWG copper conductors, the copper GROUNDING - ELECTRODE run from the service panel to the metallic water service shall be at least size ____________ AWG A) 4 B) 2 C) 1/0 D) 2/0 2 (table 250.66) A dry - type TRANSFORMER may be LOCATED in a suspended ceiling space where it is not ready ACCESSIBLE if the voltage is 600 volts or less and has a maximum rating of ____________ kva A) 10 B) 25 C) 50 D( 112 50 (article 450.13 (B) ) A SERVICE head can be located no further away from the point of attachment than ____________ inches A) 18 B) 24 C) 36 D) 48 24" (article 230.54) (C) (exceptions) ACCEPTABLE METHODS of connecting GROUNDING and BONDING conductors include all the following, EXCEPT: A) Solder joints B) Terminal bars C) Exothermic weld D) Listed pressure connectors solder joints (article 250.8 (A) The amount of available fault current at the service depends upon the : A) Method of bonding B) Method of grounding C) Size and impedance of the service transformer D) Ampere rating of the over current protection device Size and impedance of the service transformer ( general knowledge ) For a residential service calculation, heat pump loads are required to be calculated at _______________ percent of the nameplate rating when used without any supplemental electric heating. A) 65 B) 80 C) 100 D) 125 100% (article 220.82 (C) (2) ) Where the footing steel serves as the only grounding electrode for a building , does the code require a maximum resistance in ohms for this concrete encased electrode? A) Yes, 0 ohms B) Yes, 25 ohms C) Yes, 50 ohms D) No, the code has no resistance requirements for footing steel electrodes No, the code has no resistance requirement for footing steel electrodes. (general Knowledge) SERVICE CONDUCTORS passing through a building are CONSIDERED OUTSIDE THE BUILDING if: A) The service is rated B) Only one service exists C) They are encased in 2in. of concrete D) There is ground - fault protection of equipment They are encased in 2in. of concrete (article 230.6 (1) ) A 240 volt, twist - lock RECEPTACLE installed on a TEMPORARY power system of a construction site would require which of the following? A) GFCI protection B) AFCI protection C) LCDI protection D) No protection or testing required Gfci protection (article 590.6 (B) (1) ) The available current-interrupting rating of a circuit breaker is the maximum _____________ the device is designed for. A) Load B) Voltage C) Fault current D) Ampere rating (marked on the handle of the breaker) Fault current (article 110.24 (A) ) Where overhead SERVICE-DROP conductors of a 120/240-volt service pass over a roof that has a slope of 6:12 and the roof is not an overhanging roof, the minimum clearance from the roof to the overhead conductor is ___________ ft. A) 1.5 B) 3 C) 4 D) 8 3 feet (article 230.24) (exceptions #2) METAL RACEWAYS shall be metallically joined together to ensure electrical CONTINUITY in order to: A) Reduce inductive heat B) Reduce static electricity C) Facilitate tracing of electrical circuits D) Conduct safely any fault current likely to be imposed Conduct safely any fault current likely to be imposed article 250.96 (A) When a combination of transformer and utilization equipment are supplied by a FEEDER OVER 600 VOLTS, the conductor ampacity shall be not less than the sum of the nameplate ratings of the transformer and the equipment that will be operated simultaneously at ______________ percent. A) 75 B) 100 C) 125 D) 150 125% article 215.2 (B) (2) Given: Each occupant of a multi - family dwelling is required to have ready access to their SERVICE DISCONNECT . Yes, for building under continuous management supervision. article 230.72 (C) Given: Each occupant of a multi - family dwelling is required to have ready access to their SERVICE DISCONNECT . Are there any exceptions to this code provision? A) Yes, for an industrial building B) No, the NEC provides no exceptions C) Yes, for buildings under continuous management supervision D) Yes, for services of at least 400 amperes under continuous management supervision Yes, for building under continuous management supervision. article 230.72 (C) Devices with SCREW SCELLS shall have the screw shell connected to which conductor? A) Hot B) Grounded C) Grounding D) Ungrounded Grounded article 200.10 (C) The purpose of using an insulated EQUIPMENT GROUNDING CONDUCTOR connected to an isolated grounding receptacle is: A) To provide a secondary equipment grounding means for the yoke of the receptacle B) To connect the non - current carrying metal part of the equipment to the system-grounded conductor C) For the protection of the personnel, which will function to de-energize a circuit when current levels exceed established values D) To help reduce any electrical noise generated in the circuit, so as to not disturb the operation of sensitive electronic equipment To help reduce any electrical noise generated in the circuit, so as to not disturb the operation of sensitive electronic equipment. article 250.146 (D) Small APPLIANCE branch circuits in dwellings are permitted to service which of the following ? A) An exhaust hood fan and light B) A ceiling - suspended (paddle) fan in the dinning room C) A receptacle for electrical controls of a gas range and cook - top D) An outdoor receptacle serving a balcony outside the kitchen with no grade - level access a receptacle for electrical controls of a gas range and cook - top article 210.52 (B) (2) exceptions In a single - family DWELLING BASEMENT which has two entrances, how many LIGHTING OUTLETS are required where the basement is used for STORAGE only? A) 0 B) 1 C) 2 D) 3 1 article 210.70 (A) (3) What is the minimum wiring space in inches, required between the bottom of a SWITCHBOARD and non -insulated busbars ? A) 6 B) 8 C) 10 D) 12 10 inches table 408.5 Where liquid tight flexible metal conduit is installed outdoors above grade, the interior of this raceway is considered to be a ____________ location A) Dry B) Wet C) Damp D) Raintight Wet article 300.38 At an electrical control panel which has exposed live parts 0f 120 volts to ground , the depth of clear WORKING SPACE shall be at least ____________ inches. A) 30 B) 36 C) 42 D) 48 36 table 110.26 (A) (1) Given: Nonmetallic sheathed cable is installed in an 18 - cu. inch nonmetallic device box which is 2 - 1/4 inches x 4 inches (single gang) and has no internal clamps. The cable shall be supported within at least __________ inches from the box. A) 6 B) 8 C) 12 D) 36 12 article 334.30 (C) Conductors in cables that run through bores holes located less than ___________ inches from the nearest edge shall be protected with steel plates having not less than 1/16-inch thickness. A) 1 B) 1 1/4 C) 2 D) 2 1/2 1 - 1/4 article 300.4 (A) (1) MINIMUM COVER REQUIREMENTS for the underground rigid metal conduit with voltage UNDER 600 volts located in a commercial parking lot shall be __________ inches. A) 6 B) 18 C) 24 D) 30 24 table 300.5 ARE CLASS 2 REMOTE - CONTROL cables permitted to be STRAPPED or otherwise attached to RACEWAYS for support ? A) No, this is prohibited B) Yes, if the raceway is supported properly according to the NEC C) Yes, if the raceway is not flexible but rigid, such as rigid metal conduit, electrical metallic tubing, etc. D) Yes, if the raceway contains power supply conductors for equipment which the class 2 circuit conductors control No, this is prohibited article 725.143 Where flexible cord is connected to the building ceiling with a suitable " tension take - up device" the maximum length of the cord from the supply joint to the take - up device is _____________ feet. A) 2 B) 4 C) 6 D) 8 6 article 368.56 (B) (2) All of the following WIRING METHODS are permitted in a ceiling space used as a return - air plenum except: A) IMC B) NMC C) EMT D) MI CABLE NMC article 300.22 (B) Excluding exceptions, nonmetallic sheathed cable is permitted in all of the following areas EXECPT: Above a suspended ceiling of a retail store article 334.12 (A) (2) The NEC permits 3/8 - inch FLEXIBLE METAL CONDUIT to be unsupported for tap connection to light fixtures, provided the length doses not exceed __________ feet. 6 article 348.20 (2) (C) What is the maximum spacing between supports, in ft., for 3/4 - inch, rigid nonmetallic conduit? 3 table 352.30 Are single conductors with UF insulation permitted to be direct - buried ? Yes , when all conductors are run in the same trench article 300.5 Threadless fittings used with RIGID METAL CONDUCT installed in a WET LOCATION shall be : Listed for use in wet locations The minimum width of clear WORKING SPACE required for a 24- inch wide electrical panel supplied by 240/120 - volt supply is _______ inches. 30 article 110.26 (2) What is the maximum number of overcurrent devices that the National Electrical Code permits in one PANELBOARD for lighting and appliance branch circuits? 42 article 408.36 (exceptions #2) The CONTINUITY of the GROUNDED CONDUCTOR of a branch circuit is NOT permitted to be dependent on receptacle device connections in ___________ circuits. Multiwire article 200.2 (B) ( informational notes) All of the following types of 120 - volt LIGHTING FIXTURES are permitted on the ceiling of a clothes closet EXCEPT a(n): Incandescent open lamp article 410.16 (B) An ATTACHMENT PLUG is permitted to be used as the disconnect for a room AIR CONDITIONER where: Approved means is provided on the unit article 440.13 Electric APPLIANCE nameplates are required to be visible, or to be _____________ Easily accessible article 422.60 (B) EQUIPMENT shall be installed and used in accordance with instructions included: In the listing or labeling article 110.3 (informational notes #2) Given: The rated load current for an AIR - CONDITIONED COMPRESSOR is 30 amperes. A 50 ampere breaker will NOT holding the starting current. The maximum size breaker permitted for branch circuit protection is ___________ amps. 60 article 440.22 Where a FLUORESCENT LUMINARIE is connected to a multiwire branch circuit, the DISCONNECTING MEANS for the luminaire is required to simultaneously break: The ungrounded and grounded supply conductors to the ballast article 410.130 (G) (2) All 15 - and 20 - ampere, 125 - volt, general - purpose receptacles in a new dwelling are required to be: Grounding - type article 406.4 (A) FIXED OUTDOOR ELECTIC DEICING and snow - melting equipment shall be considered as a ____________ load. Continuous article 426.4 The disconnect for heating and air conditioning shall be installed a maximum of ___________ feet from the equipment. 50 article 100 (within sight) Given: A motor - control circuit is tapped from the load side of the motor short - circuit protective device. The control circuit conductor are 14 AWG THWN copper . The conductors require only short - circuit protection and do not extend beyond the motor - control equipment enclosure. The maximum overcurrent protection permitted for this motor - control conduit is ____________ amperes. 100 table 430.72 (B) Given: The CONTROLLER is not a molded case switch or a inverse - time circuit. The motor controlled for a 120 - hp motor must be RATED at not less than _____________ hp. 120 430.83 (A) (1) Given: An inverse - time circuit breaker is used to protect a hermetic motor - compressor from overload. The inverse - time circuit breaker shall be rated at a maximum of __________ percent of rated load current. 115 article 440.12 (A) (1) Disregarding any exceptions, the MAXIMUM PERMITTED OPERATIONAL SETTING OF AN ADJUSTABLE INVERSE - TIME breaker PROTECTING A 10hp, 208 - VOLT, 3 PHASE SQUIRREL CAGE MOTOR BRANCH CIRCUIT IS______________ amperes. 77.0 article (430.250) X (430.52) Given: THREE MOTORS with FULL - LOAD ampere rating of 10 amperes, 20 amperes, and 30 amperes are fed by one feeder. The motor - feeder conductors must have an ampacity of at least ___________ amperes. 67.5 article 430.24 When the design and operation of the GENERATOR will prevent overloading, the conductors shall not be less than: 100% article 445.13 (exceptions) The maximum overload - protection device rating, responsive to motor current permitted by the NEC for a 25-hp, 208- volt, 3 phase induction - type motor, marked with a temperature rise of 50 degrees C, is ___________ amperes. (Assume no special increase in size for starting current is required). 74.8 table 430.250 The NEC specifically requires that the CRITICAL BRANCH of a HOSPITAL emergency system shall provide power to all of the following areas EXCEPT: Electrical equipment rooms article 517.34 (3) Given: Branch - circuit equipment grounding conductors serving receptacles for SENSITIVE ELECTRONIC EQUIPMENT shall be grounded by means of an equipment grounding conductor. The equipment grounding conductor shall be run with the circuit conductors to an equipment grounding bus marked: Technical equipment ground article 647.6 (B) INSTUMENTATION TRAY CABLE with 22 AWG conductors is permitted to be used for circuits operating at a maximum of __________ amperes. 3 article 727.8 Given: The conductor is 120 volt and supported by a grounded messenger wire. The minimum clearance of insulated cable conduits above the water level of a SWIMMING POOL is __________ feet. 22.5 table 680.9 (A) A 12 foot run of horizontal conduit between two enclosures ( one is dust- and ignition - proof and the other is not) located in a class II, Division I location is required to have a minimum of how many sealing fittings? 0 article 502.15 Branch - circuit overcurrent protection device for LEGALLY REQUIRED STANDBY circuits shall be accessible: To authorized persons only article 701.25 Splices for fire - alarm conductors are permitted in: Junction boxes article 760.130 (B) (1) Conductors that supply a RESISTANCE WELDER shall be protected by an overcurrent device rated or set at a maximum of _____________ percent of the conductor rating. 300 article 630.32 (B) Given: In a mobile - home park, the computed load for each mobile home is 15,000 VA and the park will have 25 mobile homes. the service will be a single main, 120/240 - volt service. The electrical service required for this mobile - home park shall be at least __________ amps. 1600 The metal frame of a CIRCULATING POOL PUMP that is PERMANENTLY wired and located outside is required to : Have GFCI protection article 680.22 (A) (2) Bare, green insulation or green with yellow stripes insulation is generally used for which type of conductors? Equipment grounding conductor article 250.119 The maximum total rating of FASTENED IN PLACE utilization equipment permitted on a 20 - ampere branch circuit that also serves lighting is ___________ amps. 20 article 210.23 (A) (2) On a 20 - ampere small - appliance circuit with three outlets, what rating of receptacles is permitted? 20 amperes only table 210.21 (B) (3)