Residential Electrician Exam #1 Questions With Complete Solutions Ferrous metal enclosures for grounding electrode conductors shall be _____.
- electrically continuous
- electrically isolated
- not permitted
d) rigid metal conduit (RMC) only - Correct Answers ✅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 _____.
- switched receptacles for cord-connected incandescent luminaires
- permanently installed incandescent luminaires
- ceiling fans with luminaires
d) holiday decorative lighting - Correct Answers ✅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 _____.
- protected by a listed arc-fault interrupter
II) provided with ground-fault circuit-interrupter protection
a) I only
b) II only
- both I and II
d) neither I nor II - Correct Answers ✅B: II only
Ref: 210.8(A)(2); 210.12(B) 1 / 2
Residential Electrician Exam #1 Questions With Complete Solutions The MAXIMUM allowable ampacity of size 18 AWG fixture wire is _____ amperes.
- 12
- 10
- 8
d) 6 - Correct Answers ✅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.
- 6
- 4
- 10
d) 3 - Correct Answers ✅A: 6
Ref: 210.50(C)
Which of the following listed conductors are required to have overcurrent protection on a residential electric service?
- grounding conductors
- bonding conductors
- identified conductors
d) ungrounded conductors - Correct Answers ✅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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