NEC Journeyman 2024 Prep Quiz Questions with Complete Answers

NEC Journeyman 2024 Prep Quiz Questions with Complete Answers In an ac system, the size of the grounding electrode conductor to a concrete-encased electrode that is the sole connection, shall not be required to be larger than a(n) ________ copper conductor. Select one: A. 10 AWG B. 8 AWG C. 6 AWG D. 4 AWG - Answer-4 AWG A service is supplied by three metal raceways, each containing 600 kcmil ungrounded conductors. Determine the bonding jumper size for each service raceway. Select one: A. 1/0 AWG B. 3/0 AWG C. 250 kcmil D. 500 kcmil - Answer-1/0 AWG The feeder conductor ampacity shall not be less than that of the service-entrance conductors where the feeder conductors carry the total load supplied by service conductors with an ampacity of ________ or less. Select one: A. 30 A B. 55 A C. 60 A D. 100 A - Answer-55 A The two to six disconnects for a disconnecting means for a building supplied by a feeder shall be ______ Select one: A. the same size B. grouped C. in the same enclosure D. none of these - Answer-grouped The minimum clearance for overhead service conductors not exceeding 600V that pass over commercial areas subject to truck traffic is _________. Select one: A. 10 ft B. 12 ft C. 15 ft D. 18 ft - Answer-18 ft