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NYC ELECTRICIAN EXAM 2026/2027 ACTUAL QUESTIONS WITH VERIFIED ANSWERS.
Typology: Exams
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The value of current, time, or both at which an adjustable circuit breaker is set to trip is known as? A) Inverse time B) Ampacity C) Automatic D) Setting - ANSWER-D) Setting. Art. 100 Defintions The cross-sectional area of three or more THW conductors in a conduit must not exceed what percent of the cross-sectional area of the conduit? A) 30% B) 40% C) 50% D) 60% - ANSWER-B) 40 %
Chapter 9 Table 1 EMT must be supported within what distance from an outlet box, junction box, device box, cabinet, conduit body or other terminations? A) 3 feet B) 4 feet C) 5 feet D) 6 feet - ANSWER-A) 3 feet Article 358.30 (A) When a branch circuit feeds both noncontinuous and continuous loads, the circuit must be sized to accommodate 100% of the noncontinuous load plus what percent of the continuous load? A) 110% B) 115% C) 120 % D) 125% - ANSWER-D) 125%
Article 100 Definitions The panels of switchboards must be made of? A) Moisture resistant, noncombustible material B) Raintight material C) Impact-resistant material D) Waterproof material - ANSWER-A) Moisture-resistant, noncombustible material Article 408. A metal pole supporting a light fixture shall have an accessible handhole not less than ________ inches? A) 2 X 6 inches B) 3 X 4 inches C) 2 X 4 inches D) 4 X 8 inches - ANSWER-C) 2 X 4 inches Article 410.30 (B) (1)
The largest standard rating for fuses and inverse time circuit breakers is? A) 1000 amps B) 1600 amps C) 1200 amps D) 6000 amps - ANSWER-D) 6000 amps Article 240. A feeder tap less than 25 feet long does not require overcurrent protection at the tap if the Ampacity of the tap conductor is at least? A) 50% of the feeder conductor B) 40% of the feeder conductor C) 33 1/3% of the feeder conductor D) 20% of the feeder conductor - ANSWER-C) 33 1/3 % of the feeder conductor Article 240.21 (B) (2)
A) 100% of its nameplate rating B) 110% of its nameplate rating C) 125% of its nameplate rating D) 150% of its nameplate rating - ANSWER-C) 125% of its nameplate rating Article 422. The walls and roofs of transformer vaults shall be constructed of materials that have adequate structural strength for the conditions with a minimum fire-resistance rating of ______ hours? A) 2 B) 3 C) 4 D) 6 - ANSWER-B) 3 Article 450. Unit equipment for emergency systems shall be on the same circuit that serves the normal lighting in the area and connected ______ any local switches?
A) with B) ahead of C) after D) downstream of - ANSWER-B) ahead of Article 700.12 (B) On a heavy starting duty wound rotor motor, the secondary resistor leads shall have current capacity of at least? A) 35% B) 45% C) 85% D) 110% - ANSWER-B) 45% Article 430. Based on a current density of 1000 amps per sq inch, a copper bus bar measuring 3/16" X 1 1/2" would carry a current of? A) 1000 amps
B) Weatherproof enclosure C) Waterproof enclosure D) Liquidtight enclosure - ANSWER-B) Weatherproof enclosure Article 450. If a 120 volt circuit feeds six 80 watt fluorescent lamps, what current is drawn if power factor is 0.91? A) 4.4 amps B) 3.2 amps C) 2.57 amps D) 4.7 amps - ANSWER-A) 4.4 amps. P
E X I X PF 6 X 80= 480 watts 480 --------------- = 4. 120 X.
The smallest grounded or neutral conductor for an electric service using 1100 kcmil copper conductors is? A) 2/0 copper B) 3/0 copper C) 1/0 copper D) No. 4 AWG copper - ANSWER-A) 2/0 copper Table 250. In an autotransformer, overcurrent devices shall not be installed? A) In parallel with the output conductors B) In parallel with the shunt winding C) In series with output conductors D) In series with the shunt winding - ANSWER-D) In series with the shunt winding Article 450.4 (A) If a plug fuse window appears clear and the element is merely broken, the probable cause of the fuse blowing is?
D) Class III, Division 1 locations - ANSWER-A) Class I, Division 1 locations Article 500.7 (A) A copper wire with twice the diameter of another wire has a current carrying capacity? A) half as great B) twice as great C) one fourth as great D) four times as great - ANSWER-D) four times as great The maximum number of #12 conductors that may be installed in a 2 1/8 " ร 4 11/16" square box is? A) 10 B) 12 C) 18 D) 20 - ANSWER-C) 18
The portion of a wiring system between a point of distribution and the branch circuit overcurrent device is called the? A) branch circuit B) service entrance C) feeder D) tap conductor - ANSWER-C) feeder The reciprocal of resistance is? A) volt B) impedance C) conductance D) ampere - ANSWER-C) conductance A battery will deliver its maximum power when its load resistance is? A) zero B) twice the internal resistance C) half the internal resistance D) equal to the internal resistance - ANSWER-D) equal to the internal resistance
The working clearance between live parts for a system operating at 480 volts with exposed live parts on one side and grounded parts on the other side is? A) 1 ft B) 2 ft C) 3 ft 6in D) 4 ft - ANSWER-C) 3 ft 6 in Article 110.26 (A) Panelboards installed in Healthcare facilities and serving the same individual patient vicinity must be bonded together with copper conductors not smaller than? A) No 12 AWG B) No 10 AWG C) No 8 AWG D) No 6 AWG - ANSWER-B) No 10 AWG Article 517.
What is the minimum wire bending space allowed in a panelboard being fed with paralleled pairs of 2/0 conductors entering the enclosure through the wall opposite the terminals? A) 6 in B) 7 in C) 8 in D) 9 in - ANSWER-A) 6 in Article 312.6 (B) (2) and table 312.6 (B) The working clearance between live parts for a system operating at 480 volts with exposed live parts on one side and no live or grounded parts on the other side of the working space must be a minimum of? A) 3 ft B) 3 ft 6 in C) 4 ft D) 5 ft - ANSWER-A) 3 ft Article 110.26 (A) (1)
The minimum spacing allowed between bare metal surface mounted, current carrying parts of opposite polarity in a panelboard with voltage not exceeding 125 volts is? A) 1/4 in B) 1/2 in C) 3/4 in D) 1 in - ANSWER-C) 3/4 in Table 408. When designing or installing circuits for diagnostic equipment in health care facilities, what is the minimum percentage allowed for the momentary Ampacity of the equipment when sizing branch-circuit conductors and the overcurrent protection? A) 25% B) 50% C) 75% D) 100% - ANSWER-B) 50% Article 517.73 (A) (1)
A grounding autotransformer is used to create a three phase, 3 wire ungrounded system. At what percent must the overcurrent device be set of trip in case of an overload? A) 100% of the transformers continuous current per phase rating B) 110% of the transformers continuous current per phase or neutral rating C) 125% of the transformers continuous current per phase or neutral rating D) 150% of the transformers continuous current per phase or neutral rating - ANSWER-C) 125% or the transformers continuous current per phase neutral rating Article 450.5 (A) (2) Omission of overcurrent is permitted at points where busways are reduced in size, provided that the smaller busway length does not exceed what distance? A) 10 ft B) 20 ft C) 30 ft D) 50 ft - ANSWER-D) 50 ft
