Residential Wiring 1 Final Questions And
Answers
Which of the following is NOT included when calculating the usable area of a dwelling to
compute the required lighting load? crawl space
Where noncombustible surface material is used on walls or ceilings, outlet boxes must be
mounted so that ...
Which of the following is NOT included when calculating the usable area of a dwelling to
compute the required lighting load? crawl space
Where noncombustible surface material is used on walls or ceilings, outlet boxes must be
mounted so that they will be set back not more than ____ from the face of the surface material.
1/4 in. (6 mm)
Continuous loads are not permitted to exceed ____ of the rating of the branch circuit. 80
%
The National Electrical Code requires outdoor receptacles to be ____. GFCI protected
In the international system of units, the prefix milli- means ____. one thousandth
Connectors marked ____ are suitable for use with aluminum, copper, or copper-clad conductors.
AL/CU only
, Residential Wiring 1 Final Questions And
Answers
The rating of a branch circuit is determined by its ____. overcurrent protective device
(fuse or circuit-breaker)
A device's primary function is to ____. control electric energy
Liquidtight flexible nonmetallic conduit is subject to which of the following limitations?
Both of these choices are limitations.
Under certain circumstances, the grounded (neutral) conductors of a residential service ____
permitted to be sized smaller than the phase conductors. are
Device faceplates must be mounted so as to ____. cover the opening in the wall and to
seat against the wall surface
Type AC cable is manufactured with ____ conductors. all of these types of
, Residential Wiring 1 Final Questions And
Answers
The general lighting load for a dwelling is based on the ____. square footage of the
dwelling
Type ____ is the most common building wire used today. THHN/THWN
Wall receptacles must be placed so that no point measured horizontally along the floor line in
any wall space is more than ____ feet from a receptacle outlet. 6
For safety, it is very important that electrical equipment be "listed" by the ____. NRTL
Branch circuit conductors must have an ampacity ____ the maximum to be served. not
less than
The term approved means to be ____. acceptable to the authority having jurisdiction.
, Residential Wiring 1 Final Questions And
Answers
In construction of one- and two-family dwellings, the electrical circuits are usually designed by
the ____. electrician
Most public service commissions require that the voltage for residential services be held to ±
____ percent of the nominal voltage as measured at the service point. 5
Which piece of electrical equipment is NOT considered a device? lamp
A receptacle outlet is a(n) ____. outlet where one or more receptacles are installed
What determines the rating of a branch circuit? Rating of the overcurrent device
An arc flash can produce temperatures of ____°F. 35,000
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