Residential Electrician Exam #1 questions with correct answers

Ferrous metal enclosures for grounding electrode conductors shall be _____. a) electrically continuous b) electrically isolated c) not permitted d) rigid metal conduit (RMC) only CORRECT ANSWER A: electrically continuous Ref: 250.64(E) Unless listed for the control of other loads, general use dimmer switches shall only be used to control _____. a) switched receptacles for cord-connected incandescent luminaires b) permanently installed incandescent luminaires c) ceiling fans with luminaires d) holiday decorative lighting CORRECT ANSWER B: permanently installed incandescent luminaires Ref: 404.14(E) All 125-volt, single-phase, 15- and 20-ampere receptacles installed in residential garages shall be _____. I) protected by a listed arc-fault interrupter II) provided with ground-fault circuit-interrupter protection a) I only b) II only c) both I and II d) neither I nor II CORREC