Chapter 3 Lighting principles

Question 1

To achieve a light that is perceived to be warmer and considered flattering to complexions Kelsey should select lamps rated at:

a. 5,000 to 6,000 K
b. 2,700 to 3,000 K
c. 3,000 to 3500 K
d. 5,000 to 6500 K.

Answer 1

c. 3,000 to 3,500 K

Question 2

Dean is measuring the light intensity of a ray of light at a specific angle to the light source, he is measuring:

a. candlepower
b. footcandles
c. lumens
d. wattage

Answer 2

a. candle power

Question 3

Michael will most likely select a(n)_______ for lighting his buildings parking lot as part of an energy efficiency upgrade program.

a. flouorescent lamp
b. HID lamp
c. LED lamp
d. CFL

Answer 3

b. HID lamp

Question 4

The workers who input data into computers are complaining about the brightness from the ceiling lights that is causing them visual discomfort. This problem is ______.

a. shadowing
b. reflected gear
c. nonilluminance
d. window wall bightness.

Answer 4

b. reflected glare

Question 5

Because of scattered complaints from a few employees, Lonnie is examining the ratio of the amount of light that initially strikes the surface This ratio is:_______

a. transmission
b. refractance
c. illumination
d. reflectance

Answer 5

d. reflectance

Question 6

The illuminance level for offices with personal computers typically falls into category ______

a. b, 5 fc (50lx)
b. c, 10 fc (100 lx)
c. D, 30 fc 300 lx
d. E, 50 fc (500 lx)

Answer 6

C. D30 fc (300 lx)

Question 7

If the property manager wishes to increase worker productivity, then he will be concerned with _____ light levels in the most economical possible..

a. sustaining
b. decreasing
c. increasing
d. stopping.

Answer 7

c. increasing.

Question 8

Bill is completing a building renovation, including, lighting grid lighting layout adjustments. In order to minimize the cost of future office reconfiguration, he will most likely select ____ lighting

a. HID
b. uniform
c. nonuniform
d. flourescent

Answer 8

b. uniform

Question 9

Jenny will be installing some accent lighting. Which of the following is not considered a beneficial characteristic of accent lighting?

a. a balance of brightness
b. the creation of shadows
c. the creation of visual focus
d. enhanced visual aesthetic

Answer 9

b. the creation of shadows

Question 10

Lighting levels from 100 to 120 fc account for more than _______ of the air conditioning load in the average office building.

a. 25 percent
b. 40 percent
c. 55 percent
d. 80 percent

Answer 10

c. 55 percent.