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Illumination and Lighting Design
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1
Question
What is the phenomenon called when light falls on a surface, making it visible?
Page 5
Answer
Illumination
2
Question
How is illumination defined in terms of luminous flux?
Page 5
Answer
Luminous flux falling on a surface per unit area
3
Question
What symbol denotes illumination, and in what unit is it measured?
Page 5
Answer
Denoted by E, measured in lumens per square meter or lux
4
Question
What are the main topics covered in a lecture on artificial lighting systems?
Page 2
Answer
Introduction, definitions and intent, modes of artificial lighting, electrical advantages, schemes and classification, factors required, illumination level, productivity effects, design calculation, management and control, types of control systems, intelligent lighting
5
Question
What is semi-direct lighting with wall washers?
Page 13
Answer
A system that sends most light directly downward to the working plane with downlight as wall washers
6
Question
Name one advantage of electrical lighting mentioned in the lecture outline.
Page 2
Answer
Advantages of electrical lighting (specifics not detailed, but implied reliability and control)
7
Question
What key factor is considered first when designing a lighting scheme?
Page 17
Answer
Illumination level using the recommended level
8
Question
What does the quality of light refer to in lighting design?
Page 17
Answer
Correct color temperature
9
Question
Define the coefficient of utilization in lighting schemes.
Page 17
Answer
The measure of efficiency of the luminaire
10
Question
What is the depreciation factor in lighting design?
Page 17
Answer
Depreciation in light output
11
Question
Define space height ratio in lighting schemes.
Page 17
Answer
Distance between adjacent luminaires to their height above the working plane
12
Question
What is the recommended illumination level for a residential kitchen in lux?
Page 18
Answer
200 lux
13
Question
What illumination level is suggested for a commercial classroom?
Page 18
Answer
300-400 lux
14
Question
Recommended lux for a residential bedroom?
Page 18
Answer
300 lux
15
Question
Illumination level for jewelry work in commercial settings?
Page 18
Answer
700-800 lux
16
Question
What lux level for hospital treatment rooms?
Page 18
Answer
400-500 lux
17
Question
Recommended illumination for laboratories?
Page 18
Answer
300-400 lux
18
Question
What is color temperature measured in?
Page 19
Answer
Kelvin (K)
19
Question
How does warm color temperature (around 2000-3000K) affect productivity?
Page 19
Answer
Creates comfort and relaxation, used in intimate settings and break rooms
20
Question
What is the effect of cool daylight color temperature (5000-6500K) on work?
Page 19
Answer
Improves alertness, mood, and productivity; lowers melatonin, reduces fatigue; used in brainstorming rooms
21
Question
For living spaces and bathrooms, what color temperature range is recommended?
Page 20
Answer
Soft/Warm: 2700K-3000K
22
Question
What color temperature suits offices and classrooms?
Page 20
Answer
Cool: 4100K-5000K
23
Question
Jewelry stores benefit from what color temperature and associated mood?
Page 20
Answer
Daylight: 6500K, bright and alert like daylight
24
Question
What is the first step in lighting design calculation?
Page 21
Answer
Determine the type of room and find the lux value from IES Room Illumination Level Sheet
25
Question
What is the formula for the number of luminaires (N) in lighting design?
Page 21
Answer
N = (E × A) / (F × UF × MF)
26
Question
In the luminaire formula, what does E represent?
Page 21
Answer
Illuminance level (lux)
27
Question
What does lighting management and control refer to?
Page 22
Answer
The basic method used to control the amount of light where and when it is needed
28
Question
Name the five types of lighting control systems.
Page 23
Answer
1. Basic lighting control, 2. Dimmer switches, 3. Motion sensors for outdoor lighting, 4. Occupancy sensors for indoor lighting, 5. Networked lighting control system
29
Question
What is basic lighting control?
Page 24
Answer
Consists of a manual ON/OFF switch
30
Question
How do dimmer switches work?
Page 25
Answer
Allow an individual to slide to their desired level of lighting