Book 2: Unit 3 - Review:

Question 1

Infrared motion detectors respond to:
Select one:

A. Stillness

B. Heat

C. Light

D. Movement

E. Temperature

Answer 1

B. Heat

Question 2

One of the disadvantages of direct lighting is:
Select one:

A. Greater potential for direct glare

B. Easier to control and direct

C. Low initial cost

D. Lower floor to ceiling height possible

E. More energy efficient

Answer 2

A. Greater potential for direct glare

Question 3

What is the resistance of a photo cell when exposed to light?
Select one:

A. 100 ohms

B. 1000 ohms

C. 5000 ohms

D. 300 ohms

E. 1500 ohms

Answer 3

B. 1000 ohms

Question 4

A luminaire is the:
Select one:

A. Reflector or refractor

B. Means of light control

C. Ballast

D. Lamp

E. Complete lighting unit

Answer 4

E. Complete lighting unit

Question 5

Which type of emergency lighting is required by the Life Safety Code to be provided automatically for means of egress (exit) for structures, into which daylight does not penetrate, with occupancy of 100 or more people?
Select one:

A. Type 2 or 3

B. Type 1 or 2

C. Type 1, 2 or 3

D. Type 3

E. Type 1

Answer 5

C. Type 1, 2 or 3

Question 6

Which type of emergency lighting is required by the Life Safety Code to be provided automatically for means of egress (exit) for all educational and institutional occupancies?
Select one:

A. Type 1

B. Type 2 or 3

C. Type 1, 2 or 3

D. Type 1 or 2

E. Type 3

Answer 6

D. Type 1 or 2

Question 7

One of the disadvantages of indirect lighting is:
Select one:

A. Blends in with the environment

B. Greater direct glare control

C. Produces uniform, diffused, shadow-free light

D. Less energy efficient

E. Potential for maximum visual comfort

Answer 7

D. Less energy efficient

Question 8

The control of light produced by the lamp and is accomplished by the use of transparent, translucent, or opaque surfaces that refract, _____, or absorb light directing it to the zones where it is required and preventing it from reaching the zones where it is not required.
Select one:

A. Reflect

B. Redirect

C. Refit

D. React

E. Render

Answer 8

A. Reflect

Question 9

Ordinarily, the most economical group relamping period is about _____ of rated life of the lamp.
Select one:

A. 60%

B. 70%

C. 90%

D. 100%

E. 50%

Answer 9

B. 70%

Question 10

Lamp efficiency is expressed in:
Select one:

A. Watts per lumen

B. Lumens per watt

C. Candle per power

D. Lumens per volt

E. Power per watt

Answer 10

B. Lumens per watt

Question 11

What is the resistance of a photo cell when dark?
Select one:

A. 5 megohms

B. 25 megohms

C. 15 megohms

D. 30 megohms

E. 10 megohms

Answer 11

C. 15 megohms

Question 12

The original dimmer was a resistance type that diverted some of its current through a/an:
Select one:

A. Variable transistor

B. Variable transformer

C. Automatic switch

D. Adjustable switch

E. Variable resistor

Answer 12

E. Variable resistor

Question 13

Most offices have _____ lighting since it is difficult to predict desk locations and the locations that might get by with lower lighting levels.
Select one:

A. Task

B. Non-Uniform

C. Uniform

D. Supplementary

E. Local

Answer 13

C. Uniform

Question 14

_____ high-level lighting is provided for a work area or display without consideration of overall uniform ambient lighting.
Select one:

A. Non-Uniform

B. Combined

C. Uniform

D. Local

E. Task

Answer 14

D. Local

Question 15

What percentage of the electrical consumption in a large office building is attributed to the lighting systems?
Select one:

A. 50%

B. 60%

C. 75%

D. 40%

E. 68%

Answer 15

B. 60%

Question 16

Employing occupancy sensors to turn lights on and off in areas of low occupation can reduce lighting costs by _____ percent.
Select one:

A. 30 to 50

B. 30 to 60

C. 20 to 50

D. 40 to 60

E. 20 to 60

Answer 16

E. 20 to 60

Question 17

Which type of emergency lighting is required by the Life Safety Code to be provided automatically for means of egress (exit) for office buildings with occupancy in excess of 1000 people?
Select one:

A. Type 1

B. Type 2 or 3

C. Type 3

D. Type 1, 2 or 3

E. Type 1 or 2

Answer 17

D. Type 1, 2 or 3

Question 18

For hospitals and medical areas the Life Safety Code (NFPA No. 101) allows _____ for the stand by engine to start and power to be available.
Select one:

A. 1 seconds

B. 0.1 seconds

C. 2 to 3 minutes

D. 10 seconds

E. 3 seconds

Answer 18

D. 10 seconds

Question 19

Even in very clean situations, light output can drop by _____ per year.
Select one:

A. 5%

B. 15%

C. 12%

D. 3%

E. 9%

Answer 19

A. 5%

Question 20

Which type of emergency lighting is required by the Life Safety Code to be provided automatically for means of egress (exit) for multiple residences with 25 or more dwelling units?
Select one:

A. Type 3

B. Type 1 or 2

C. Type 1, 2 or 3

D. Type 1

E. Type 2 or 3

Answer 20

C. Type 1, 2 or 3