NEC Reference The minimum direct-burial depth for rigid metal conduit containing a 480-volt circuit not encased in concrete and not subject to vehicular traffic is ?. a. 4 b. 6" c. 12 d. 18 " (id:107392) NEC Reference Generally, no conductor larger than ? shall be installed in a cellular metal floor raceway. a. 1/0AWH b. 2/0AWG c. 3/0AWG d. 4/0AWG NEC Reference The smallest single current-carying conductor cable permitted to be installed in cable tray in an industrial establishment is ?. a. 1/0AWH b. 2/0AWH c. 3/0AWG d. 4/0AWH Partial credit allowed. NEC Reference The maximum trade size of intermediate metal conduit permitted to be used is trade size ?. a. 3 b. 4 c. 5 d. 6 Open wiring on insulators is a type of wiring that is not permitted to be concealed by the building structure. a. True b. False Partial credit allowed. NEC Reference A pull box is to be installed in a straight run of five four-inch conduits that will contain five separate 120/208-volt feeders. The feeders are 2 AWG copper conductors. What is the minimum length of the pull box? a. 12 b. 24 c. 30 d. 32 Partial credit allowed. NEC Reference A 4,160-volt feeder is to be installed in a nonmetallic conduit identified for direct burial without concrete encasement. The minimum covering for the nonmetallic conduit is ? a. 6 b. 12" c. 18" d. 24 When the grounded conductor is to be spliced in a 12-inch by 12-inch junction box, there shall be at least ? of free conductor left for splicing. a. 2" b. 4 c. 6" d. 12 Flat conductor cable is recognized for use as feeder or branch-circuit conductors. a. True b. False (id:107399) All metal-clad cable conductors shall be stranded. a. True b. False Partial credit allowed. NEC Reference When an outlet supplied through an underfloor raceway is removed, the sections of the circuit conductors supplying the outlet shall be removed from the raceway. a. True b. False Partial credit allowed. Which chapter 3 article covers requirements for cabinets, cutout boxes, and meter socket enclosures? a. Article 300 b. Article 310 c. Atticle 312 d. Article 314 NEC Reference In general, the minimum-size aluminum feeder conductors permitted to be installed in parallel is a. 1/0AWG b. 2/0AWG c. 3/0AWG d. 4/0AWH (id:107408) NEC Reference When in a raceway with not more than three current-carrying conductors, how many amperes can a 10 AWG THW carry continuously? a. 24A b. 28A c. 30A d. 35A Locations protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture are defined as ? locations. a. damp b. dry c. semi-dry d. wet The radius of a bend in Type Ml cable with an overall diameter of 1/2 inch shall not be less than five times the external diameter of the cable measured ?. a. from the beginning to the end of the bend b. to the center of the cable c. to the inner edge of the bend d. to the outer edge of the cable Partial credit allowed