Deck 13: Lighting Branch Circuit for the Living Room

Question 1

For track lighting installed in homes, it is not necessary to add ____________________ for the purpose of branch circuit, feeder, or service-entrance calculations.

Answer 1

additional loads

Question 2

Lighting track in residential installations must not be installed ____.

A) in damp or wet locations
B) concealed
C) through walls or partitions
D) all of the above

Answer 2

D

Question 3

In addition to being fastened to the outlet box, the track for track lighting is generally fastened to the ceiling with ____.

A) toggle bolts
B) screws
C) nails
D) both a and b

Answer 3

D

Question 4

Electronic dimmers for use only to control incandescent lamps are marked with a(n) ____________________ rating.

Question 5

A receptacle below a 4-way switch in the corner of a living room is required because the Code requires that a receptacle be installed in any wall space ____ in. or more in width.

A) 12
B) 24
C) 36
D) 72

Question 6

Lighting track shall be supported twice if the track is not more than ____________________ ft and shall have one additional support for each additional ____________________ ft track.

Question 7

The most common type of dimmer used in residential applications is rated ____ watts, 125 VAC, 60 hertz.

A) 100
B) 250
C) 600
D) 800

Question 8

What are the two basic types of dimmers?

Question 9

Electronic dimmers use triacs to chop the ac sine wave, so some incandescent lamps might ____ because the lamp filament vibrates.

A) buzz
B) hum
C) pulsate
D) whine

Question 10

Lighting track is not permitted to be installed less than ____ above a finished floor unless it is protected against physical damage, or if the track is of the low-voltage type operating at less than 30 volts rms open-circuit voltage.

A) 5 feet
B) 6 feet
C) 6 feet 7 inches (two meters)
D) 7.5 feet

Question 11

Portable lighting track must meet which of the following requirements?

A) It shall not be longer than 8 feet.
B) It shall have have a cord not less than 5 feet permanently attached to the track.
C) It shall have overcurrent protection (fuse or circuit breaker) built into the plug cap.
D) All of the above

Question 12

The Code section that prohibits running track lighting through walls or partitions is NEC ____________________.

Question 13

Lighting track ____ permitted to be installed within a zone extending 3 feet horizontally and 8 feet vertically from the top of a bathtub rim.

A) is
B) is not

Question 14

Describe two features of electronic dimmers.

Question 15

Lighting track in residential installations shall not be cut to length in the field unless permitted by the ____.

A) builder
B) local building codes
C) homeowner
D) manufacturer

Question 16

Two popular types of electronic dimmers are ____.

A) slide and rotate
B) slide and push
C) push and cord
D) rotate and cord