LIGHTING

Question 1

What is the minimum height of an accessible wall outlet?

Answer 1

15”

Standard height wall outlets typically range from around 15-18 inches (380-450 mm) above above the finished floor.

Per ADA, The height for an accessible wall outlet is 15 inches (380 mm) minimum above the finish floor or ground.

Question 2

Where is the junction box for a power pole located?

Answer 2

plenum

Question 3

How much space must be provided in front of power panels?

Answer 3

36” (900 mm) minimum

Question 4

Which type of lights can be switched together?

LED and halogen
LED and fluorescent
LED and xenon
none of these can be switched together

Answer 4

none of these can be switched together

Switching can be determined by function and lighting type. Different functional zones should be switched separately.

Incandescent lights should generally be on a circuit separate from fluorescent lights. Incandescent lights are often on 120V circuits and fluorescent lights are connected to 227V circuits.

Lights on a dimmer should also be on a separate switch.

Question 5

Per code, ground fault interrupters are typically required in what spaces?

all of these

kitchen and laundry countertop receptacles within 6’ (1.8 m) of the outside edge of a wet bar

outdoors, crawl spaces and unfinished basements

countertop receptacles within 6’ (1.8 m) of the outside edge of a wet bar

Answer 5

all of these

Question 6

What index is used to rate how well one light source renders the color of an object when compared with a reference source of similar chromatic properties?

Answer 6

color rendering index

Question 7

All of the following are true about a task/ambient lighting system EXCEPT?

responds to individual lighting needs

provides all light output on the task

provides general illumination with separate light fixtures used at task area

creates a more pleasant work environment than other lighting systems

Answer 7

provides all light output on the task

Question 8

Which of the following light fixtures would not be appropriate to use in a residential space?
 incandescent track system
 HID down light
 fluorescent troffer
 halogen track system

Answer 8

HID down light

The HID lamp warm-up process can take three to seven minutes, depending on ambient temperature conditions, so this not appropriate for residential use where someone would want the light to come on instantly.

Question 9

What is the most important criterion for lighting a fabric showroom?

Answer 9

CRI

Question 10

If frequently changing lamps was a concern for a particular project, which type of light source would be the best to specify?

Answer 10

LED