Residential chapter 5
Three terminals
number of terminals :Three-way switch
Four terminals
number of terminals: Four-way switch
Two terminals
number of terminals: Single-pole switch
Travelers, source
A 4-way switch does not have "ON" and "OFF" markings. Four-way switches are connected to the _______between two 3-way switches. One 3-way switch is fed by the ______ ; the other 3-way switch is connected to the load.
tamper resistant
All 125-volt, 15- and 20-ampere receptacles in a dwelling are required to be______
2
Alternating current, general-use snap switches are UL-listed to control motors rated up to what horsepower?
Green hexagonal screw
Equipment grounding conductor screw color
More than two locations
From how many locations does four-way switching allow a lighting outlet to be controlled?
Single pole, 3-way, 4-way, double-pole, dimmer, occupancy sensor, and speed control. Available in snap, push, rocker, slider, rotary, electronic, w/ or w/out pilot lights
Name at least four kinds of lighting switches.
is not
On isolated ground receptacles, the metal yoke___ integrally bonded to the equipment grounding terminal of the receptacle.
are not
Phase conductors 6 AWG and smaller______ permitted to be re-identified as equipment ground conductors using green paint, tape, or other effective means.. po
Solid 14 AWG copper conductors
Screwless push-in terminals (i.e., back wiring holes) on receptacles are listed only for use with what type of branch-circuit conductor?
metal
Snap switches with nonmetallic yokes (straps) have a terminal for the equipment grounding conductor. Using this type of switch provides a means for grounding ______faceplates when nonmetallic boxes are used.
30 amperes
Specify the maximum overcurrent protection permitted for the following the circuit conductor sizes: 10 AWG copper
20 amperes
Specify the maximum overcurrent protection permitted for the following the circuit conductor sizes: 12 AWG copper
15 amperes
Specify the maximum overcurrent protection permitted for the following the circuit conductor sizes: 14 AWG copper
ungrounded
The NEC requires that switching be done only in ______conductors.
Neutral point
The common point on a wye-connected polyphase system or the mid-point on a single phase system is the _____
Switch loop
The conductors that run between a switched outlet and the switch controlling the outlet are called a(n) ______
white, gray, three continuous white stripes
The grounded (identified) conductor of 6 AWG or smaller must have an outer finish that is_____
grounded
The long slot on a 15-ampere, 125-volt, receptacle is the ______conductor.
all circuit conductors be run in the same raceway
To avoid inductive heating in metallic raceways, the NEC requires that______
Return conductor
When is a reidentified white conductor NOT permitted?
removed
When receptacles or switches have No. 6-32 screws secured to them with small pieces of cardboard, these pieces of cardboard must be ______when the wiring device is installed in a metal outlet box.
Silver, brass
When terminating a receptacle, the white (grounded) conductor is always connected to the _______ -colored terminal, and the phase (hot) conductor is always connected to the______ -colored terminal.
green with three white stripes
When using individual conductors in raceway, which insulation color is NOT permitted for the grounded conductor (neutral)?
For use with a tungsten filament lamp. They are designed to handle momentary high inrush currents
"T"-rated snap switches are intended for what application?
Where more than ne equipment grounding conductor enters a box, they are to be spliced with devices "suitable for use" no solder
Describe what NEC 250.148 requires to maintain the continuity of the equipment grounding path.
Silver-colored screw
Grounded (white) conductor screw color
Brass-colored screw
Hot (phase) conductor screw color
Use nonmetallic faceplates or provide GFCI protection
In older existing installations, where an equipment ground does not exist in a metal switch box that is located within reach of a conductive floor such as tile or cement, NEC 404.9(B) requires the use of what kind of faceplate?
