Deck 18: Device Installation

Question 1

All metal device boxes need to have the circuit grounding conductor(s) connected to it with a 10-32 green grounding screw.

Answer 1

True

Question 2

A multiple receptacle has more than __________ contact device(s) on the same yoke.

A) 1
B) 2
C) 3
D) 4

Answer 2

B

Question 3

When a duplex receptacle is installed horizontally, it is recommended that the __________ slot be located on top.

A) grounded
B) grounding
C) ungrounded
D) Either A or B

Answer 3

A

Question 4

A feed-through GFCI receptacle can provide GFCI protection for regular receptacles installed 'downstream' on the same branch circuit.

Question 5

Which of the following is not considered to be a line surge?

A) Ground to line
B) Ground to neutral
C) Line to line
D) Line to neutral

Question 6

A __________ operates by monitoring the current flow on both the ungrounded 'hot' conductor and the grounded conductor.

A) TVSS
B) circuit breaker
C) fuse
D) GFCI

Question 7

Which of the following determine the effect electrical shock has on the body?

A) The amount of current flowing through the body
B) The path the current takes through the body
C) The length of time the current flows through the body
D) All of the above

Question 8

A(n) __________ line surge is caused by inductive loads in a residence such as spark igniters on gas ranges and clothes dryers, electric motors, and computers.

A) impulse
B) grounding
C) shorting
D) ring wave

Question 9

The most common receptacle type used in residential wiring is the single receptacle.

Question 10

A GFCI device provides protection against __________.

A) short circuits
B) ground faults
C) overcurrents
D) All of the above

Question 11

Section 404.10(B) specifies that screws used for attaching a switch to an electrical box must be sheet metal screws with a thread that matches the thread gage or size of the screw holes in the box.

Question 12

A grounding conductor may not be __________.

A) bare
B) green
C) green with yellow stripes
D) green with white stripes

Question 13

A GFCI device is designed to trip when fault current levels are _____ milliamps or more and not to trip when the fault current is less than _____ ma.

A) 6, 4
B) 4, 6
C) 6, 5
D) 5, 2

Question 14

If a white conductor in a Romex cable is connected to a traveler terminal on a three-way switch, it does not have to be re-identified because it is not 'hot' all the time.

Question 15

When self-grounding receptacles are used with nonmetallic device boxes there is no need to attach the circuit grounding conductor to the green screw on the receptacle.

Question 16

A __________ switch would be used to control two lights from one location.

A) double-pole
B) single-pole
C) three-way
D) four-way

Question 17

In all areas specified in Section 210.52, all nonlocking type 125 volt, 15- and 20- amp receptacles must be tamper-resistant. (General Rule)

Question 18

Which of the following conductors are permitted to be used for the push-in method of attaching conductors to a device?

A) 14 AWG solid copper
B) 14 AWG stranded copper
C) 14 AWG aluminum
D) 14 AWG copper-clad aluminum

Question 19

On a 20-ampere rated branch circuit, which of the following types of receptacles may not be used?

A) 20-amp single receptacles
B) 15-amp single receptacles
C) 15-amp duplex receptacles
D) 20-amp duplex receptacles

Question 20

Section 210.12(A) in the NEC ^® requires all of the 15- and 20-amp, 120-volt branch circuits installed in dwelling unit kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sun rooms, recreation rooms, closets, hallways, laundry areas, or similar rooms or areas to be AFCI protected.

Question 21

A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc is detected is called a(n) ________________________________________.

Question 22

When more than one grounded conductor enters a device box, a wiring practice to use so that only one conductor gets connected to the silver terminal screw is to use a(n) ____________________.

Question 23

A _________ is a familiar type of transient voltage surge suppressor that is usually bought and installed by the homeowner rather than the electrician.

Question 24

On a receptacle, the ____________________ conductor is connected to the silver terminal screw.

Question 25

The NEC defines a(n) ____________________ as a contact device installed at an outlet for the connection of an attachment plug.

Question 26

__________ connections on devices are a reliable way to terminate circuit conductors to a switch or receptacle device and can save time during installation because a terminal loop is not required to be made.

A) New
B) Push-in
C) Back-wired
D) Straight through

Question 27

Section 406.15 does not allow receptacles that supply lighting loads to be connected to a dimmer switch unless the receptacle and plug on the cord of the lighting fixture is a __________ configuration.

A) standard
B) nonstandard
C) listed
D) approved

Question 28

Section 406.5 specifies that screws used for attaching a receptacle to an electrical box must be machine screws with 32 threads per inch or be the type supplied by a __________ receptacle.

Question 29

GFCI receptacles should be tested at least once per __________.

A) day
B) week
C) month
D) year

Question 30

The proper NEMA designation for a 15 amp, 125 volt grounding type receptacle is __________.

A) 5-15R
B) 5-15P
C) 5-20R
D) 6-15R

Question 31

Electricians create a split-wired receptacle by removing the __________ between the brass terminal screws on the 'hot' side of a duplex receptacle.

A) screw
B) connecting tab
C) strap
D) wire

Question 32

A __________ receptacle is one that has internal shutters that are closed behind the receptacle slots when there is no attachment plug inserted. The shutters open when a plug is inserted allowing the plug (and cord) to become energized.

A) duplex
B) single
C) tamper resistant
D) GFCI

Question 33

If a device box has been installed too far back behind a wall, a __________ can be used to bring the edge of the box flush with the wall surface.

A) new box
B) wall shrinker
C) box extender
D) different kind of device

Question 34

The preferred method for connecting a circuit conductor to a device is to form a __________ in the wire, put it under a terminal screw, and tighten the screw properly.

A) terminal loop
B) curve
C) circle
D) jug handle

Question 35

If the two conductors to be connected to a single-pole switch are black and a re-identified white, the connection you are using is called a(n) _________________________.

Question 36

The proper NEMA designation for a 30 amp, 125/250 volt grounding type receptacle installed for an electric clothes dryer is __________.

A) 5-15R
B) 6-30R
C) 14-30R
D) 10-30R

Question 37

A ____________________ switch is used to control a 240-volt load from one location.

Question 38

A duplex receptacle that is wired so one half is hot all the time and the other half is switch-controlled is called a(n) ____________________ receptacle.

Question 39

To GFCI protect receptacles that are downstream from a GFCI receptacle, the wiring going to those receptacles is connected to the ____________________ terminals on a feed-through GFCI receptacle.

Question 40

The metal frame that a receptacle or switch is built around is called a(n) ____________________.

Question 41

Explain how metal faceplates are grounded if nonmetallic device boxes are used.

Question 42

Explain why it is recommended to install receptacles with the grounding slot up.

Question 43

Describe different strategies that electricians use to properly position a duplex receptacle into a device box.

Question 44

Explain what can be done during the rough-in phase to make switch installation easier in the finish phase of the wiring process.

Question 45

What do the letters 'TVSS' stand for?

Question 46

List the 6 types of AFCI devices currently recognized by Underwriters Laboratories (UL).

Question 47

Explain the drawbacks of the push-in method of securing conductors to devices.

Question 48

Explain the purpose of the metal strap that runs through or behind a receptacle or switch.