#1
Which of the following is an example of a natural light source?
Incandescent bulb
LED light
Sun
Fluorescent tube
#2
What type of light source uses a filament that glows when electricity passes through it?
Fluorescent light
LED light
Incandescent light
Halogen light
#3
Which of the following is NOT a characteristic of incandescent lights?
They have a warm color temperature
They are sensitive to voltage fluctuations
They contain a tungsten filament
They have a long lifespan
#4
Which of the following light sources is characterized by its ability to instantly turn on to full brightness?
Fluorescent light
Halogen light
Incandescent light
LED light
#5
Which of the following is a characteristic of incandescent light bulbs?
They contain a gas that emits light
They produce light by passing electricity through a filament
They are highly energy-efficient
They have a lifespan of over 50,000 hours
#6
Which of the following is NOT a characteristic of LED lights?
Low energy consumption
Long lifespan
Heat emission
Instantaneous illumination
#7
What is the primary difference between CFLs (Compact Fluorescent Lights) and incandescent bulbs?
CFLs produce less heat
Incandescent bulbs are more energy-efficient
CFLs have a longer lifespan
Incandescent bulbs contain mercury
#8
Which of the following light sources produces light by passing electricity through a gas?
Fluorescent light
Incandescent light
Halogen light
LED light
#9
What is the primary advantage of halogen lights over incandescent lights?
Lower energy consumption
Longer lifespan
Higher color rendering index
Brighter illumination
#10
Which of the following light sources is known for its ability to produce a focused beam of light?
Incandescent light
Halogen light
Fluorescent light
LED light
#11
In terms of color rendering, which type of light source typically offers the best performance?
Halogen lights
LED lights
Fluorescent lights
Incandescent lights
#12
Which of the following is a characteristic of fluorescent lights?
They emit UV radiation
They are dimmable
They contain a filament
They produce warm light
#13
What type of light source is commonly used in automotive headlights for its high brightness and efficiency?
Fluorescent light
Halogen light
LED light
Incandescent light
#14
Which of the following types of light sources is most commonly used for underwater illumination?
Halogen light
LED light
Incandescent light
Fluorescent light
#15
What is the primary drawback of using incandescent lights compared to other types of light sources?
High energy consumption
Poor color rendering
Limited color temperature range
High initial cost