RESIDENTIAL ELECTRICIAN FINAL
EXAM REVIEWS
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)
Unles...
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 - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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?
a) 20 amperes
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