Lighting

Question 1

What would be the best type of light source for a jewelry display case?

Answer 1

MR16

Question 2

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

Answer 2

CRI - color rendering index - is a more accurate indication of how appropriate a lamp is for a specific application.

Question 3

If you were looking for an inexpensive, compact light source that could easily be dimmed and produces warm color to be used in a dining room chandelier, which of the following would be your best choice?

Answer 3

incandescent lamp

Question 4

Incandescent lamps

Answer 4

are still an inexpensive, compact light source, that is easy to dim, can be repeatedly started without a decrease in lamp life, and have a warm color rendition.

Their light output can be easily controlled with reflectors and lenses.

In many jurisdictions, energy conservation codes may limit the use of these so it’s important to be familiar with the local codes which apply.

Question 5

All of the following are true about a low voltage lamp EXCEPT?
A. is a semiconductor device that uses solid-state electronics to create light
B. provide better beam control than a standard incandescent lamp
C. are another class of incandescent lamps
D. typically operate at 12V

Answer 5

A. is a semiconductor device that uses solid-state electronics to create light

Question 6

This type of lamp produces light by heating a material (usually metal) to a temperature at which it glows.

Answer 6

incandescent

Question 7

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

Answer 7

CRI

Question 8

This is a measure of how well a light source makes colored objects appear when compared to a “reference” light source. The higher the number, the better the color appearance:

Answer 8

Color rendering index

Question 9

Which of the following is NOT one of the most important considerations for light quality?
A. color
B. lamp type
C. glare
D. uniformity

Answer 9

B. lamp type

Question 10

The units used for the measurement and description of the brightness of a direct glare source are

Answer 10

candela per square meter

Question 11

The amount of light output produced by a lamp or light source; this is how lamp manufacturers rate their lamps and publish catalogs with this information:

Answer 11

Lumens

Question 12

Which types of luminaires require a ballast?

Answer 12

HID and fluorescent

Question 13

Which of the following should not be a primary consideration when choosing a light source?
A. operating life cost
B. color rendition
C. efficacy
D. aesthetics

Answer 13

D. aesthetics

Question 14

All of the following are true about a task/ambient lighting system EXCEPT?
A. creates a more pleasant work environment than other lighting systems
B. provides all light output on the task
C. responds to individual lighting needs
D. provides general illumination with separate light fixtures used at task area

Answer 14

B. provides all light output on the task