Deck 17: Lighting Fixture Installation

Question 1

Only bulbous-shaped lamps are correctly referred to as a "light bulb."

Answer 1

True

Question 2

Fluorescent, incandescent, and LED recessed lighting fixtures are available for use in homes.

Answer 2

True

Question 3

The NEC requires that all fluorescent ballasts installed indoors, for both new and replacement applications, must have thermal protection built into the unit by the manufacturer.

Answer 3

True

Question 4

A __________ is defined by the NEC as a complete lighting unit consisting of a lamp or lamps together with the parts designed to distribute the light, to position and protect the lamps and ballast, and to connect the lamps to the power supply.

A) fixture
B) sconce
C) luminaire
D) lamp holder

Question 5

Energy-efficient light fixtures come in recessed, ceiling surface-mounted, wall-mounted, and specialty styles.

Question 6

Which of the following ballasts may be used with fluorescent dimmers?

A) Preheat
B) Rapid start
C) Instant start
D) None of the above

Question 7

Track lighting consists of a surface-mounted or suspended track with an individual lighting head installed in a permanent position to point light at a specific area or item.

Question 8

Lighting fixtures in suspended ceilings are considered recessed fixtures.

Question 9

The ballast nameplate will indicate if it is a Class P ballast.

Question 10

The amount of electrical power used by a lamp is measured in __________.

A) volts
B) watts
C) amperes
D) lumens

Question 11

The main reason for using fluorescent fixtures with two ballasts is to be able to switch control the lamps separately.

Question 12

Metal halide lamps do not require the use of a ballast.

Question 13

Which of the following lamp types is the most inefficient?

A) Fluorescent
B) Incandescent
C) Metal halide
D) LED

Question 14

Manufacturers recommend that quartz halogen lamps should be handled without touching the clear quartz, either by using a clean paper towel, a clean rag, or carefully holding the base.

Question 15

A Type IC recessed incandescent or LED light fixture may be __________ thermal insulation.

A) kept at least 2" from
B) completely covered by
C) kept at least 3" from
D) kept at least 1/2"

Question 16

Installation requirements for light fixtures are contained in Article __________ of the NEC.

A) 210
B) 250
C) 310
D) 410

Question 17

A class __________ ballast has a built-in thermal protection unit that opens the lighting circuit if the ballast temperature exceeds a specified level.

A) B
B) L
C) P
D) T

Question 18

Lamp manufacturers are concerned with which of the following factors?

A) Color temperature
B) Color rendering
C) Lamp efficacy
D) All of the above

Question 19

Which of the following lamp types require the use of phosphors to produce light?

A) Metal halide
B) Sodium vapor
C) Incandescent
D) Fluorescent

Question 20

A "damp location" lighting fixture may be installed in an area subject to saturation from water and other liquids.

Question 21

When installing ceiling suspended paddle fans in a low ceiling, make sure the fan blades are at least __________ feet above the floor.

A) 5
B) 6
C) 7
D) 8

Question 22

Lamp ________is a ratio of the number of lumens a lamp produces to each watt of power it uses.

A) efficacy
B) size
C) color
D) heat

Question 23

When lighting fixtures are installed in exposed or concealed locations under metal-corrugated sheet roof decking there must be at least a _____ inch space between the lowest surface of the roof decking to the top of the light fixture.

A) 1
B) 1.5
C) 2
D) 3

Question 24

A surface-mounted fluorescent fixture must be installed so that there is at least __________ inches from the lamps to the nearest storage space in a clothes closet.

A) 3
B) 6
C) 8
D) 12

Question 25

____________________ lamps are referred to as "electric discharge lamps" by the NEC.

Question 26

An incandescent lamp with a designation of G40 means that the lamp is a globe shape and __________ inches in diameter.

A) 2
B) 4
C) 5
D) 10

Question 27

A(n) ____________________ is the unit of light emitted from a light source.

Question 28

What do the letters "LED" stand for?

A) light-efficient diodes
B) low-emission diodes
C) light-emitting diodes
D) laser-emitted diodes

Question 29

Which of the following is not considered one of the three main independent testing laboratories for electrical lighting fixtures?

A) National Electrical Manufacturers Association
B) Underwriters Laboratories
C) Canadian Standards Association
D) Electrical Testing Laboratories

Question 30

A measure of a lamp's ability to show colors accurately is called __________.

A) color temperature
B) color rendition
C) candlepower
D) light

Question 31

When replacing incandescent lamps with CFLs, replace existing 100, 95, and 90 watt incandescent bulbs with a __________ watt CFL.

A) 15
B) 20
C) 25
D) 50

Question 32

The measure of the color appearance of a light source that helps describe the apparent "warmth" or "coolness" of the light source is called __________.

A) color temperature
B) color rendition
C) light
D) candlepower

Question 33

A(n) ____________________ is a component in a fluorescent lighting fixture that controls the voltage and limits current flow to the lamp.

Question 34

The visible portion of the electromagnetic spectrum is called ____________________.

Question 35

Lamp diameters are measured in __________ of an inch.

A) sixteenths
B) eighths
C) quarters
D) three-quarters

Question 36

A luminaire that is cord connected or chain-, cable- or cord-suspended cannot have any part of the fixture within a zone measuring __________ feet horizontally and __________ feet vertically from the top of the bathtub rim or from a shower stall threshold.

A) 2; 8
B) 3; 10
C) 3; 8
D) 4; 11

Question 37

A T-8 fluorescent tube is __________ inch(es) in diameter.

A) 5/8
B) 1
C) 1.5
D) 2

Question 38

_________________________ is formed by nearly equal parts of all the visible wavelengths.

Question 39

The fastest growing type of lighting in home use is the __________.

A) incandescent lamp
B) fluorescent lamp
C) LED lamp
D) compact fluorescent lamp

Question 40

A lamp's ____________________ rating is a ratio of the number of lumens a lamp produces to each watt of power it uses.

Question 41

The newest lamp type being used in residential wiring is the ___________________ lamp, which is initially a little expensive to purchase but because of its long life and very high efficiency will cost very little to use in the long run.

Question 42

The four groups of lighting are general, accent, task, and ____________________.

Question 43

Explain why HID lighting is generally not used in residences.

Question 44

Explain why a red sports car appears to be red to the human eye.

Question 45

By the end of 2014, many of the old style (non-halogen) tungsten filament ___________________ lamps were phased out in the United States because of their low efficiency.

Question 46

Explain how an LED lamp works.

Question 47

Describe some of the many advantages of LED lamps over traditional incandescent lamps.

Question 48

Describe the benefits of compact fluorescents (CFLs).

Question 49

In fluorescent lamps, electrons emitted from the cathodes strike particles of ____________________ vapor.

Question 50

The fastest-growing application of lighting in house wiring is in ___________________ lamps, which are often used to replace existing incandescent and fluorescent lamps.

Question 51

Explain why "warm" light sources are preferred for residential lighting.

Question 52

The unit of light that is emitted from a light source is called a ___________________.