Residential Electrician Exam #1Complete Questions With 100% Correct Answers.
Ferrous metal enclosures for grounding electrode conductors shall be _____.
a) electrically continuous
b) electrically isolated
c) not permitted
d) rigid metal conduit (RMC) only
A: electrically continuous
Ref: 250....
Residential Electrician Exam #1Complete Questions With
100% Correct Answers.
Ferrous metal enclosures for grounding electrode conductors shall be _____.
a) electrically continuous
b) electrically isolated
c) not permitted
d) rigid metal conduit (RMC) only
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
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
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
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
, 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
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
c) 30 amperes
d) 45 amperes
C: 30 amperes
Ref: 422.11(E)(3); 240.6(A); Current Formula
Sol:
I = P/E
I = 4500 va / 240 volts
I = 18.75 amps x 150 percent
I = 28.1 amperes
If a cable or raceway enters an enclosure such as a meter base, above uninsulated live parts in a wet
location, the fittings used to connect the enclosure must be _____ for wet locations.
a) identified
b) marked
c) suitable
d) listed
D: listed
Ref: 312.2(A)
In general, the power supply cord to a mobile home shall have a MAXIMUM rating of _____.
a) 50 amperes
b) 60 amperes
c) 100 amperes
d) 125 amperes
A: 50 amperes
Ref: 550.10(A)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICAIDSTORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.59. You're not tied to anything after your purchase.
