©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:42PM. A+
Residential Electrician Exam #1 Questions
With Correct Answers 100% Verified.
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
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:42PM. A+
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
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?
a) 20 amperes
b) 25 amperes
2
Residential Electrician Exam #1 Questions
With Correct Answers 100% Verified.
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
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:42PM. A+
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
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?
a) 20 amperes
b) 25 amperes
2
