1) For a given conductor size, which material has the greatest ampacity? a) copper only b) copper-clad aluminum only c) aluminum only d) copper-clad aluminum and aluminum 2) Alternating current, general-use snap switches are UL-listed to control motors rated up to what horsepower? a) 1/2 b) 3/4 c) 2 d) as marked on the switch 3) The long slot on a 15-ampere, 125-volt, receptacle is the _____________ conductor a) grounded b) phase "hot" c) equipment-grounding d) traveler 4) All 125-volt, 15- and 20-ampere receptacles in a dwelling are required to be ______________ a) tamper resistant b) AFCI protected c) GFCI protected d) weather resistant 5) To avoid inductive heating in metallic raceways, the NEC requires that ___________________. a) all circuit conductors be run in the same raceway b) the grounded (neutral) conductor be oversized c) the equipment grounding conductor be bonded to the raceway d) none of these 6) Article 210 applies to branch circuits, but branch-circuit calculations are covered in ____. a) Article 220 b) Article 230 c) Article 240 d) Article 250 7) The rating of a branch circuit is determined by its ____. a) overcurrent protective device (fuse or circuit-breaker) b) wire size c) demand factor d) connected load 8) Liquid tight flexible nonmetallic conduit is subject to which of the following limitations? a) It cannot be used in direct sunlight, unless marked for this application. b) It can become brittle in extremely cold temperatures. c) Both of these choices are limitations. 9) In which location type NM cable not permitted to run a) Dry location b) Dry and wet location c) Outside masonry block or tile wall d) Conceal in dry location 10) Older texts used the term "MCM," which means the same thing as ____. a) metric b) kcmil c) A.I.C. d) GFCI 11) Low voltage (high voltage drop) in a home can be caused by ____. a) a conductor that is too small for the load b) a circuit that is too long c) poor connections at the terminals d) all of these 12) The NEC in Table 210.24 shows that the minimum conductor size for branch-circuit wiring is ____. a) 20 AWG b) 18 AWG c) 14 AWG 13) When a 4 ft. piece of nonmetallic-sheathed cable is used as a fixture whip above an accessible ceiling, it ____. a) is not required to be secured b) may be up to six feet in length c) is required to be plenum-rated d) is subject to all of these requirements 14) Connectors marked ____ are suitable for use with aluminum, copper, or copper-clad aluminum conductors. a) CO-ALR only b) AL/CU only c) UL 9 d) CO-ALR and AL/CU 15) The National Electrical Code does NOT allow rigid PVC conduit to ____. a) be installed concealed b) support lighting fixtures c) support conduit bodies d) be used in damp and wet locations 16) Type AC cable is manufactured with ____ conductors. a) two-phase b) three-phase c) four-phase d) all of these types of 17) The NEC requires that conductors 8 AWG and larger must be ____ when installed in a raceway. a) grounded b) bonded c) stranded d) none of these 18) The ampacity of the conductors in nonmetallic-sheathed cable is based on that of ____ conductors. a) 60°C (140°F) b) 75°C (167°F) c) 90°C (194°F) d) None of the above 19) The suffix “B” in Type NM-B nonmetallic cable means that the conductors have an insulation temperature rated ____. a) 30°C (86°F) b) 60°C (140°F) c) 75°C (167°F) d) 90°C (194°F) 20) Conductor sizes up through 4/0 AWG are expressed in American Wire Gauge (AWG). Conductor sizes larger than 4/0 AWG are expressed in ____. a) metric units b) kcmil c) diameter d) radians

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