Journeyman Electrician | 100 Questions and Answers 2023 with complete solution

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