Basic construction wiring
if replacing a 2-wire receptacle the replacement type may be a GFCI type but it must be marked _____
"no equipment ground"
notches on the top or bottom of joists shall not exceed ___ the depth of the joist and shall not be longer than ___ the width of the joists
1/6 the depth and 1/3 the width
When installing NM cable the cable must be strapped or stapled not more than ____ from a box or fitting
12 inches
branch circuit must be rated to how many amperes when serving two or more outlets
15, 20, 30, 40, or 50
will a GFCI receptacle still properly function without a grounding conductor?
Yes
what is a potential hazard of old knob and tube wiring
brittle rubber conductors from years of heat from luminares and extreme heat in the attic resulting in a potenital fire
what can happen because of Voltage Drop
can cause lights to dim and poor performance of appliances
is celsius or fahrenheit used when referring to the temperature rating of insulation
celsius
an exception to a GFCI requirement in an unfinished basement would be what?
if the receptacle serves a permanently installed fire alarm or burglar alarm system
unless run through horizontal holes or notches in studs and joists, the intervals between straps or staples must not exceed ____
4 1/2 ft
What range of the hot conductor will make the GFCI trip
4 to 6 milliamperes
Cuts or notches in nonbearing partitions shall not exceed ____ of the studs width
40%
Receptacles located more than _____ above the floor are not required to be TR type
5 1/2ft
Bored or drilled holes in any stud shall not be closer than ____ to the edge of the stud
5/8in
Utilization equipmemt fastened in place are not permitted to exceed what percent of the branch-circuit rating
50%
Any receptacle within _____ of a sink is required to have GFCI protection
6 ft
the rating of any one cord-and-plug-connected utilization equipment is not permitted to exceed what of the branch-circuit rating
80%
NM-B is rated to what temperature
90*C
problems arise in equipment when there is a _______
breakdown of insulation
cuts or notches in exterior or bearing partitions shall not exceed ____ of the studs width
25%
What is the maximum allowable voltage drop for feeders
3%
what is the maximum allowable voltage drop for branch circuits
3%
the word bathroom is defined in NEC Article 100 as an area including a
Basin with one or more of the following: A toilet, uringal, tub, shower, bidet, or similar plumbing fixtures.
All 125-volt, 15- and 20-ampere and 30-ampere receptacle outlets that are not part of the permanent wiring of the building and that will be used by the workers on the construction site must be ______
GFCI protected
what can result when the ungrounded conductor in the appliance comes in contact with the metal frame of the appliance
Insulation failure
is it okay to use AFCI and GFCI devices in series?
It is okay
Will a GFCI protect a person when they touch both circuit conductors at the same time
It will not protect them because it doesn't sense an imbalance
Can you staple flat nonmetallic-sheathed cables on edge?
NO never
Ampacity
The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
locations exposed to direct sunlight require to be listed or listed and marked as what
being "sunlight resistant"
Locations protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture.
damp location
A location not normally subject to dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, as in the case of a building under construction.
dry location
are AC systems from 50-1000 volts required to be grounded?
duh yes
What does the suffix "b" mean (ex. NM-B)
it means conductors have 90*C insulation
what is kcmil
one thousand circular mils
When arcing occurs between the black ("hot") and white grounded (neutral) circuit conductors, or between the black ("hot") conductor and ground, it is referred to as a "parallel" arc.
parallel arcs
When a conductor that is carrying current breaks or when a loose connection occurs, a "series" arcing fault is created. The current draw of the connected load is trying to jump across the opening created by the break or loose connection.
series arcs
rating of the overcurrent devices determines what
the rating of a branch circuit
All 15 and 20 ampere 125 and 250 volt nonlocking type receptacles installed in a damp or wet location are required to be listed as _____
weather resistant type
Installations underground or in concrete slabs or masonry in direct contact with earth; in locations subject to saturation with water or other liquids; and in unprotected locations exposed to weather.
wet locations
when is GFCI protection not required for an outdoor receptacle?
when it is not readily accessible and supplied by a dedicated branch circuit for snow melting or deicing equipment
