Exam (elaborations)
Residential Electrician Exam 1 Newest 100% VERIFIED CORRECT | UPDATED
- Course
- Institution
Residential Electrician Exam 1 Newest 100% VERIFIED CORRECT | UPDATED
[Show more]
Content preview
Residential Electrician Exam 1 Newest100% VERIFIED CORRECT | UPDATED
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 - 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 - 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
ii ii ii ii ii ii ii ii
Ref: 290.9 ii
Given: a 40-gallon electric water heater has a nameplate rating of 4,500 watts at 240 volts.
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
What is the MAXIMUM standard size circuit breaker the NEC permits to protect the water
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
heater?
ii
a) 20 amperes ii ii
b) 25 amperes ii ii
c) 30 amperes
ii ii
d) 45 amperes - C: 30 amperes
ii ii ii ii ii ii ii ii
Ref: 422.11(E)(3); 240.6(A); Current Formula
ii ii ii ii
Sol: ii
I = P/E
ii ii
I = 4500 va / 240 volts
ii ii ii ii ii ii
I = 18.75 amps x 150 percent
ii ii ii ii ii ii
I = 28.1 amperes
ii ii ii
If a cable or raceway enters an enclosure such as a meter base, above uninsulated live
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
parts in a wet location, the fittings used to connect the enclosure must be _____ for wet
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
locations.
ii
a) identified ii
b) marked ii
c) suitableii
d) listed - D: listed
ii ii ii ii ii ii
Ref: 312.2(A) ii
In general, the power supply cord to a mobile home shall have a MAXIMUM rating of
ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii ii
_____.
ii
a) 50 amperes ii ii
b) 60 amperes ii ii
c) 100 amperes
ii ii
d) 125 amperes - A: 50 amperes
ii ii ii ii ii ii ii ii
Ref: 550.10(A) ii
A 150 kVA, single-phase transformer having a secondary voltage of 120/240 is to be
ii ii ii ii ii ii ii ii ii ii ii ii ii ii
installed at a multi-family dwelling. The current available at the secondary is _____
ii ii ii ii ii ii ii ii ii ii ii ii ii
amperes.
ii
a) 329 ii
b) 421 ii
c) 625 ii
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 STUVATE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now