Residential Electrician Exam #1 Questions and Answers 100% Correct.

Ferrous metal enclosures for grounding electrode conductors shall be _____. a) electrically continuous b) electrically isolated c) not permitted d) rigid metal conduit (RMC) only - 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 - 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 - ANSWER-B: II only Ref: 210.8(A)(2); 210.12(B) The MAXIMUM allowable ampacity of size 18 AWG fixture wire is _____ amperes. a) 12 b) 10 c) 8 d) 6 - ANSWER-D: 6 Ref: Tbl. 402.5 A receptacle outlet installed for a gas or electric clothes dryer in the laundry room of a dwelling unit must be installed within at LEAST _____ feet of the intended location of the dryer. a) 6 b) 4