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WorksheetsIllumination and Lighting Principles Quiz
Total questions: 10
Worksheet time: 5mins
The unit of luminous flux is:
Lux
Lumen
Candela
Watt
Which law states that illumination on a surface is inversely proportional to the square of the distance from the source?
Lambert’s Law
Inverse Square Law
Kirchhoff’s Law
Stefan-Boltzmann Law
The luminous intensity of a source is measured in:
Lumen
Lux
Candela
Foot-candle
Which device is used to measure the total luminous flux emitted by a light source?
Goniophotometer
Lux meter
Spectrometer
Integrating sphere
Which of the following lamps has the highest luminous efficacy?
Tungsten filament lamp
Mercury vapor lamp
Fluorescent tube
LED lamp
Which of the following correctly matches the lamp type with its characteristic?
Tungsten filament – long life, high efficiency
Fluorescent lamp – flicker-free, no starter needed
Mercury vapor lamp – requires warm-up time
LED lamp – uses gas discharge
Which of the following is a polar curve used in lighting design?
A plot showing color spectrum of light
A curve showing temperature vs. time
A plot of luminous intensity in various directions
A graph of voltage vs. current for a lamp
According to BIS standards, which of the following is most important in flood lighting design?
Voltage regulation
Color temperature
Uniform illumination and glare control
Lamp base type
Which term refers to the amount of light falling on a surface?
Luminous flux
Illuminance
Luminous efficacy
Luminance
Which of the following is a key advantage of LED lighting over traditional lighting methods?
Requires ballast to operate
Emits light in all directions
High energy efficiency and long life
Contains mercury vapor
