Deck 13: Switching Circuit Installation

Question 1

A permanent black marker can be used to reidentify a white insulated conductor as a "hot" ungrounded conductor in a cable.

Answer 1

True

Question 2

The brass-colored terminals on a three-way switch are called the __________ terminals.

A) common
B) traveler
C) ungrounded
D) grounded

Answer 2

B

Question 3

If the circuit-equipment grounding conductor is connected to the green grounding terminal on a switch, there is no need to ground the metal device box in which the switch is installed.

Answer 3

False
The box must be grounded to maintain an adequate ground if the switch is removed from the device box.

Question 4

Switches installed in metal boxes are considered grounded as long as metal screws are used to mount the switch's metal strap to a metal box that has an equipment-grounding wire connected to it.

Question 5

The black-colored common terminal on a three-way switch should always have a __________ insulated wire connected to it.

A) white
B) black
C) red
D) Any colored insulated wire is permitted

Question 6

Motor loads not exceeding 80% of the ampere rating of the switch at its rated voltage are permitted to be controlled by alternating current general-use snap switches.

Question 7

The most common switch used in residential wiring is the __________ switch.

A) double-pole switch
B) combination switch
C) three-way
D) single-pole

Question 8

The National Electrical Code requires that all switching be done in the __________ circuit conductor.

A) grounded
B) grounding
C) switch loop
D) ungrounded

Question 9

Switch loops are not permitted in three-way switch circuits.

Question 10

The white wire used in a traditional switch loop wired with a two-wire cable like Type NM must be reidentified.This is normally done with black electrical tape.

Question 11

When using three-wire Type NM cable the white insulated wire is sometimes used as a traveler conductor for three-way and four-way switching and is required to be reidentified as an ungrounded conductor.

Question 12

There is no need to connect a white insulated grounded conductor to any single-pole, double-pole, three-way, or four-way switch in a residential switching circuit.

Question 13

To control a lighting outlet from four locations, a circuit requires __________.

A) four single-pole switches
B) a four-way switch
C) two three-way switches and a four-way switch
D) two three-way switches and two four-way switches

Question 14

Dimmer switches are available in single-pole, three-way, and four-way models.

Question 15

A double-pole switch can be used to control two 120-volt circuits.

Question 16

Like single-pole toggle switches, single-pole dimmer switches always come from the factory with screw terminals.

Question 17

Like a four-way switch, a double-pole switch has four terminal screws and the toggle has "On" and "Off" written on it.

Question 18

When wiring a house using conduit, the NEC permits a white insulated conductor to be used as a "hot" conductor in a switch loop as long as it is reidentified as such.

Question 19

When reidentifying a white insulated conductor as a "hot" ungrounded conductor, the identifying mark must completely encircle the conductor.

Question 20

Four-way switches must be wired __________ in a switching circuit that has more than two switching locations.

A) before the three-way switches
B) in line with the three-way switches
C) after the three-way switches
D) between the three-way switches

Question 21

A switch type that raises or lowers the lamp brightness of a lighting fixture is a __________ switch.

A) two-way
B) dimmer
C) pilot light
D) combination

Question 22

A(n) ___________ is a device that detects when a person has entered a room and switches on the room lighting.

A) four-way switch
B) single-pole switch
C) dimmer switch
D) occupancy sensor

Question 23

____________________ switches are used to control one or more lighting loads from two or more locations.

Question 24

Explain where combination switches are usually installed in residential wiring systems.

Question 25

Which of the following switches tend to generate the most heat?

A) Double-pole switches
B) Dimmer switches
C) Three-way switches
D) Four-way switches

Question 26

The number of conductors required to be installed between three-way and four-way switches is ____________________.

Question 27

When wiring a house with a conduit wiring method, a __________ insulated wire cannot be used in a traditional switch loop as a "hot" ungrounded conductor.

A) red
B) white (re-identified)
C) blue
D) black

Question 28

Explain what must be done to a receptacle so that it may be split-wired with half of it "hot" and the other half switch-controlled.

Question 29

____________________ switch devices consist of two switches on one yoke or strap.

Question 30

Explain how to tell the difference between a four-way switch and a double-pole switch.

Question 31

A(n) ____________________ switch is used to control a 240-volt load, such as a water heater, in a residential wiring system.

Question 32

Explain how a traditional switch loop for a single-pole switch is wired using Type NM cable.

Question 33

When installing a ceiling-suspended paddle fan with a lighting kit, and you want to have separate control of the fan and light, a __________ must be run from the switching location to the paddle fan location.

A) two-wire cable
B) three-wire cable
C) four-wire cable
D) five-wire cable

Question 34

When wiring a house with a cable wiring method, a __________ insulated wire can be used in a switch loop switching arrangement.

A) red
B) white (reidentified)
C) black
D) All of the above

Question 35

A switching arrangement where the two-wire cable feed is brought to the lighting outlet first and a two-wire cable is installed from the lighting outlet to the switch is called a(n) _________________________.

Question 36

Three-way switches are always installed in __________.

A) pairs
B) threes
C) fours
D) None of the above

Question 37

Which of the following are the same as general-use snap switches?

A) Snap switches
B) Toggle switches
C) Switches
D) All of the above

Question 38

A ________ is a device that controls the flow of electricity on a circuit for a certain amount of time.

A) four-way switch
B) timer
C) motion sensor
D) single-pole switch

Question 39

Four-way switches are always wired between two __________ switches.

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

Question 40

When installing a receptacle so that one half is controlled by a switch and the other half is "hot" all the time, the switch-controlled half should be located on the ____________________ of the receptacle.

Question 41

Explain why the top half of a split-wired receptacle is "hot" all the time and the switch-controlled half is on the bottom.

Question 42

Explain why one dimmer switch and one regular three-way switch are used in three-way circuits instead of two three-way dimmer switches.Assume the use of non-digital dimmers.

Question 43

Explain how a switch loop for a single-pole switch following the requirements of Section 404.2(C) is wired.Assume the use of Type NM cable.

Question 44

Describe benefits to using timers, motion sensors, and occupancy sensors in residential electrical systems.