RESIDENTIAL ELECTRICIAN EXAM 1 | QUESTIONS AND VERIFIED ANSWERS | GRADED A+| PASS ON FIRST ATTEMPT | BRAND NEW 2026 UPDATE!!!!!

SWERS | GRADED A+| PASS ON FIRST ATTEMPT | BRAND NEW 2026



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 lumi-
naires

Ref: 404.14(E)



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)



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



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, 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

c) 10

d) 3 - ANSWER A: 6

Ref: 210.50(C)



Which of the following listed conductors are required to have overcurrent protection on a
residential electric service?

a) grounding conductors

b) bonding conductors

c) identified conductors

d) ungrounded conductors - ANSWER D: ungrounded conductors

Ref: 290.9



Given: a 40-gallon electric water heater has a nameplate rating of 4,500 watts at 240 volts.
What is the MAXIMUM standard size circuit breaker the NEC permits to protect the water
heater?


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