Journeyman Electrician | questions and answers 2023/24

Journeyman Electrician | questions and answers 2023/24 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 _____? - dusttight 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 1/0 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 MINIMUM trade size electrical metallic tubing (EMT) required to enclose eight (8) size 6 AWG copper conductors with THHW insulation, when installed in a 50 foot conduit run? - 1 1/4 in. Where exceptions are not applicable, when a feeder supplies a continuous load of 240 amperes, the overcurrent protection device protecting this circuit shall have a rating of at LEAST _____? - 300 amperes Liquidtight flexible metal conduit (LFMC) shall be securely fastened WITHIN _____ of each box or other conduit termination? - 12 inches Where a pull box to be installed will contain conductors of size 4 AWG and larger, and a straight pull of the conductors is to be made, the length of the box shall NOT be less than ____times the trade diameter of the largest conduit entering the box. - eight Conduit nipples not over 24 inches in length may be filled to a MAXIMUM of _____ of their cross-sectional area. - 60 percent 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 l