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WorksheetsFundamentals of Lighting Quiz
Total questions: 50
Worksheet time: 25mins
The unit of luminous flux is:
candela
lumen
lux
watt
The SI unit of illuminance is:
candela
lumen
lux
foot-candle
One lux is equal to:
1 lumen per candela
1 lumen per square meter
1 candela per square meter
1 watt per lumen
The measure of light intensity in a given direction is:
lux
candela
lumen
watt
Which term refers to the brightness perceived from a surface?
illuminance
flux
intensity
luminance
The primary architectural element for daylighting is:
artificial lamps
windows and skylights
chandeliers
louvers only
The daylight factor (DF) is expressed as:
ratio of artificial to natural light
ratio of indoor to outdoor illuminance × 100
ratio of lumens to lux
ratio of reflectance to transmittance
South-facing windows in the tropics usually provide:
uniform lighting
excessive glare
controlled daylight with shading
no significant effect
The main problem with unshaded east- and west-facing windows is:
insufficient daylight
glare and overheating
low reflection
high maintenance
Light shelves are primarily used to:
block all daylight
redirect daylight deeper into a room
enhance artificial lighting
serve as decorative ledges
The color temperature of warm white light is approximately:
1000-2000 K
2700-3000 K
4000-5000 K
6500 K
Cool white fluorescent lamps typically have:
2000 K
3000 K
4000-5000 K
6500-7000 K
The measure of how accurately a light source renders colors is:
color temperature
brightness
Color Rendering Index (CRI)
luminance
A lamp with a CRI of 90+ is considered:
poor
fair
good
excellent
Which lamp type is most energy-efficient for general use?
incandescent
halogen
fluorescent
LED
Incandescent lamps operate by:
discharge through gas
solid-state diodes
heating a filament
plasma arc
Fluorescent lamps require which auxiliary equipment?
dimmer
starter only
ballast
capacitor only
Compact fluorescent lamps (CFLs) are primarily designed to:
replace halogen lamps
replace incandescent bulbs
replace sodium lamps
replace mercury vapor lamps
LED stands for:
Light Energy Device
Light Emitting Diode
Luminance Efficiency Device
Light Energy Display
Which lamp type has the longest lifespan?
incandescent
halogen
fluorescent
LED
Task lighting is used for:
general circulation
specific visual activities like reading
decoration only
emergency lighting
Ambient lighting provides:
dramatic effects only
general illumination
concentrated beams
accent highlights
Accent lighting is primarily used for:
circulation
highlighting artworks or features
office tasks
emergency exits
A downlight recessed into the ceiling is also called:
floodlight
troffer or can light
cove light
spotlight
Cove lighting is usually installed:
under desks
on the floor
in ceiling recesses for indirect lighting
inside furniture
A luminaire that distributes light upward is called:
downlight
uplight
floodlight
spotlight
Diffusers in lighting are used to:
increase glare
reduce lamp life
scatter light evenly
block all light
A parabolic reflector lamp (PAR) is designed to:
scatter light widely
produce a focused beam
reduce intensity
dim automatically
Dimming controls are primarily used for:
increasing lamp life only
changing color temperature only
adjusting light levels and energy use
avoiding daylight
Motion sensors in lighting are mainly for:
aesthetics
decoration
energy saving and security
noise reduction
The method used to calculate lighting requirements for interiors is:
heat gain method
load factor method
lumen method
solar method
Recommended average illuminance for office work is:
50 lux
100 lux
300-500 lux
2000 lux
Recommended average illuminance for corridors is about:
20-50 lux
100-150 lux
500 lux
1000 lux
A theater auditorium typically requires:
1000 lux
500 lux
200 lux
very low ambient light with accent
Emergency lighting must provide at least:
1 lux
5 lux
10 lux
50 lux
Direct glare is caused by:
reflected surfaces
light source directly in line of sight
daylight only
low color temperature
Reflected glare is also called:
direct glare
veiling reflections
brightness ratio
diffuse reflection
Unified Glare Rating (UGR) is used to measure:
color rendering
discomfort glare
efficiency
luminance
High contrast ratios in workspaces usually lead to:
better comfort
eye strain
improved CRI
lower glare
Which surface finish helps reduce glare?
glossy finish
matte finish
metallic finish
mirror finish
Daylight harvesting systems use:
motion sensors
photosensors to dim artificial lighting
timers only
wind sensors
Which lamp contains mercury and needs safe disposal?
incandescent
LED
fluorescent
halogen
Which standard often guides energy efficiency in lighting design?
ASTM
ISO 9001
LEED or ASHRAE 90.1
UL
The main advantage of LEDs over fluorescents is:
higher mercury content
shorter life
higher heat output
lower energy use and long life
Occupancy sensors mainly reduce:
lamp CRI
wasted energy from unused spaces
daylight factor
luminance
Tunable white LED lighting allows:
changing beam direction
altering lamp shape
adjusting color temperature
improving CRI automatically
Smart lighting systems are usually controlled by:
manual switches only
ballasts
reflectors
apps, sensors, and automation
Human-centric lighting aims to:
reduce lamp costs
minimize daylight
support circadian rhythms
increase wattage
Fiber optic lighting is commonly used for:
general lighting
decorative and display lighting
task lighting
emergency exits
The future trend in architectural lighting emphasizes:
higher wattage lamps
incandescent revival
more mercury lamps
energy efficiency, smart controls, and sustainability
