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JOURNEYMAN ELECTRICIAN EXAM 2025|ACTUAL 100
Qs&As|ALREADY GRADED A+
For other than one-and two-family dwellings, when building a new electrical service, at least one (1) 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be located within at LEAST _____ of the electrical service equipment? 50 feet The ampacity of a conductor is defined by the NEC to be the maximum current, in amperes, a conductor can carry continuously under the conditions of use without exceeding ______? It’s temperature rating Disconnect switch enclosure installed in a Class II, Division 2 location shall be listed as _____? dust tight The interior of enclosures or raceways installed underground shall be considered as a _____ location? Dry Determine the MAXIMUM allowable current-carrying capacity of four (4) size 1/ AWG THW copper current-carrying conductors installed in a common raceway with an ambient temperature of 86 degrees F?
120 amperes The NEC defines a continuous load to be a load where the maximum current on the circuit is expected to continue for at LEAST____ hours or more? Three The service disconnecting means for each electrical service shall consist of NOT more than _____ switches or circuit breakers, mounted in a single enclosure or in a group of separate enclosures. Six Given: You have determined a conductor has a computed allowable ampacity of 75 amperes. What is the MAXIMUM standard ampere rating of the overcurrent protection device the NEC® permits to protect this circuit where this is not a motor circuit or part of a multioutlet branch circuit supplying more than one receptacle? 80 amperes A 208-volt, 3-phase, 50 hp, squirrel-cage, continuous-duty, ac motor has a full-load running current rating of _____? 143 amperes What is the MAXIMUM distance that a disconnect switch is permitted to be located from the operator's station for a portable carnival ride? 6 feet
Determine the MAXIMUM number of size 14 AWG THHN conductors permitted to be installed in a trade size 3/8 in. flexible metal conduit (FMC) that contains a bare size 14 AWG grounding conductor, when the FMC has external fittings. Four Which one of the following listed conduits does the NEC® permit to enclose conductors supplying wet-niche underwater pool luminaires? Schedule 40 rigid polyvinyl chloride conduit (PVC) Underground wiring is not permitted under a permanently installed swimming pool or within _____ of the pool, unless the wiring is supplying the associated pool equipment. 5 feet Which of the following listed types of batteries is NOT permitted for use as a source of power for emergency systems? Automotive In regard to electric space heating equipment, heating cables shall be furnished complete with factory-assembled nonheating leads at LEAST _____ in length. 7 feet
In guest rooms of hotels, motels, and sleeping rooms of dorms a MINIMUM of _____ general purpose receptacles installed in the room is/are required to be readily accessible. two A listed _____ shall be installed in or on all emergency systems switchboards and panelboards? surge protective device (SPD) Where a size 4 AWG or larger conductor enters a panelboard, which of the following must be provided? An insulated bushing. Class _____ locations are those that are hazardous because of the presence of easily ignitible fibers or where materials producing combustible flyings are handled, but in which such fibers/flyings are not likely to be in suspension in the air in quantities sufficient to produce ignitible mixtures. III A single-phase, 240-volt, 15 kVA standby generator may be loaded to a MAXIMUM of _____ per line. 62.50 amperes
A single-phase, 125-volt receptacle installed to serve a washing machine in the laundry room of a dwelling unit must be installed within at LEAST ______ of the intended location of the appliance? 6 feet When ambient temperature is not a factor, a size 8 AWG single copper conductor with type FEPB insulation, installed in free air, will have a MAXIMUM allowable ampacity of _____? 80 amperes For the purpose of determining conductor fill in a device box, a single-pole switch and/or a three-way switch is counted as equal to _____ conductor(s), based on the largest conductor connected to the switch. two When determining the required ampacity of the branch-circuit conductors to supply a 3-phase, continuous-duty ac motor, current values given on _____ shall be used. Table 430.250 of the NEC Three-way and four-way switches shall be wired so that all switching is done _____.
only in the ungrounded circuit conductor Determine the MAXIMUM number of size 1 AWG XHHW compact conductors permitted in a trade size 3 in., rigid Schedule 40 PVC conduit more than 24 inches long. 21 Infrared commercial and industrial heating appliances shall have overcurrent protection NOT exceeding _____? 50 amperes Class _____ hazardous locations are those in which flammable liquid-produced vapors, or combustible liquid-produced vapors are or may be present in the air in quantities sufficient to produce explosive or ignitible mixtures? I In indoor areas where walls are frequently washed, such as laundries or car washes, metallic conduit and metallic panelboards shall be mounted with a MINIMUM _____ space between the wall and conduit or panelboard when the equipment is installed exposed? 1/4 in.
Direct-buried conductors emerging from grade shall be protected by raceways or covers up to at LEAST _____ above finished grade. 8 feet What is the MINIMUM size wire type equipment grounding conductor for a 50 ampere branch circuit as required by the NEC®? 10 AWG Disregarding exceptions, all 3-phase, 4-wire, 480Y/277 volt, electrical services, require ground-fault protection for each service disconnecting means when rated for at LEAST _____ or more? 1,000 amperes Determine the conductor ampacity given the following related information: 1.Conductors are size 500 kcmil copper - conductor insulation is THWN - eight (8) current-carrying conductors are in the raceway - ambient temperature is 125 deg. F 2.Conduit length is 50 feet 3.Installation is a wet location 178.2 amperes
When connecting to luminaires, trade size 3/8 in. flexible metal conduit (FMC) is permitted to enclose tap conductors, provided the length of the FMC does NOT exceed _____? 6 feet Where a trade size 1/2 in. rigid metal conduit (RMC) is installed in a Class I location and a 1/2 in. conduit seal is required, the MINIMUM thickness of the sealing compound shall NOT be less than _____? 5/8 in. In dwelling units, all 125-volt, single-phase, 15- or 20-ampere receptacle outlets installed within six (6) feet of the outside edge of a sink in a laundry room shall be provided with _____. both GFCI protection and AFCI protection A 30 hp, 480-volt, 3-phase wound-rotor, ac motor has a full-load running current rating of _____. 40 amperes
Liquidtight flexible metallic conduit (LFMC) shall NOT be used _____. where subject to physical damage Where exceptions are not to be considered, service conductors installed as open conductors shall have a clearance of NOT less than _____ from windows that are designed to be opened, porches, doors or balconies. 3 feet When terminating conductor sizes 14 AWG through 1 AWG on circuit breakers, the conductors shall be considered to have a temperature rating of ______, unless the circuit breakers are listed and marked otherwise. 60C Standard trade size 2 in. rigid Schedule 40 polyvinyl chloride conduit (PVC), shall be supported at LEAST every _____. 5 feet For an ac system operating at less than 1000 volts, a main bonding jumper shall connect the grounded conductor(s) to _____.
each service disconnecting means enclosure In industrial establishments, where sizes 1/0 AWG through 4/0 AWG single conductor cables are installed in ladder type cable tray, the MAXIMUM allowable rung spacing for the cable tray shall be _____. 9 inches A single-gang, 1 in. deep, Type FS box is permitted to house no more than _____ size 12 AWG conductors. six In general, which of the following receptacle outlets in a commercial kitchen are required by the NEC® to be GFCI protected? All 125-volt, 15- or 20-ampere receptacles. What is the MINIMUM size copper SE cable with type THHW insulation that may be used as ungrounded (phase) service-entrance conductors for a 150-ampere rated, 120/240-volt, single-phase residential service? 1 AWG
Where an ac electrical service is supplied with four (4) parallel sets of size 500 kcmil aluminum ungrounded conductors, what is the MINIMUM size copper grounding electrode conductor required when connected to the concrete encased reinforcing building steel? 3/0 AWG Where exposed Type NM cable passes through a floor, the cable shall be enclosed in an approved conduit extending at LEAST _____ above the floor. 6 inches When installing wiring for sensitive electronic equipment, the MAXIMUM voltage to ground is required to be _____. 60 volts In a health care facility, a patient bed location in a critical care area is required to have which of the following? Fourteen single receptacles or seven duplex receptacles. When intermediate metal conduit (IMC) is threaded in the field, a standard cutting die with a _____ taper per foot shall be used. 3/4 in.
Electrically heated floors in bathrooms, kitchens, and in hydromassage bathtub locations shall be _____. GFCI protected Which of the following methods is an acceptable marking for the grounding pole on a grounding type receptacle? A green colored hexagonal headed or shaped terminal screw. What is the MAXIMUM length of a flexible cord that may be used for a recirculating pump motor on a swimming pool at a dwelling? 3 feet Plate grounding electrodes shall be installed NOT less than _____ below the surface of the earth. 30 inches A disconnecting means shall be provided on the supply side of all fuses in circuits having a voltage of at LEAST _____ to ground. 150 volts
According to the National Electrical Code®, what are the three (3) mandatory separate branches of the hospital essential electrical system? The life safety branch, the critical branch and the equipment branch. Class 3 single conductors shall NOT be smaller than _____. 18 AWG At the time of installation, grounded (neutral) conductors larger than size 6 AWG may be identified at its terminations by _____ colored phase tape. white When grounding the structural reinforcing steel of a swimming pool, what is the smallest size grounding conductor permitted for this installation? 8 AWG When conductors or cables are installed in raceways exposed to direct sunlight on or above a rooftop and within at LEAST _____ of the rooftop, a temperature adder must be applied to the applicable correction factors of Table 310.15(B)(2)(a) to determine the allowable ampacity of the conductors. 36 inches
Where a motor of more than 1 horsepower has a temperature rise of 50 deg. C indicated on the nameplate, for the purposes of selecting the overload device, this device shall be selected to trip at NO more than _____ of the motor's full-load ampere rating. (Assume modification of this value is not necessary.) 115 percent Where size 14 AWG branch-circuit conductors protected by a 15-ampere rated circuit breaker supplies three (3) 20-ampere rated duplex receptacles, this branch circuit _____. is not in compliance with the NEC because the receptacles have a 20-ampere rating What is the MAXIMUM number of times a grounding electrode conductor is permitted to be spliced by use of listed split-bolt connectors? none Given: A metal junction box has a volume of 27 cubic inches and contains a total of six (6) size 12 AWG conductors, no grounding conductors, devices or fittings are contained in the box. Additional wires of size 10 AWG need to be added in the box. What is the MAXIMUM number of size 10 AWG conductors may be added to this box? five
