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Lighting 1
Lighting design basics test 1
| Question | Answer |
|---|---|
| The ____________________ is typically used to highlight vertical surfaces and three-dimensional objects such as artwork, retail displays, and signage | focal layer |
| The principal of _________________ provides a framework for understanding and achieving composition and aesthetics in lighting design. | layerying |
| Because more attention is given to lighting specific surfaces, layered lighting is often ______________________ (more/less) efficient that lighting space uniformly. | more |
| The _________________ layer is used to illuminate specific tasks that are performed in a space. | task |
| Using higher levels of illumination at the task location is more _________________ than providing that level of light throughout the entire space. | energy efficient |
| The __________________ provides the background lighting that helps create the mood of the space. | ambient |
| Which lighting layer is considered to be the “jewelry of architecture” ? | Decorative Layer |
| what color (s) is the eye MOST sensitive to? | Yellow and green |
| What wavelength are human eyes most sensitive to? | 550nm |
| Light that features all of the visible wavelengths in roughly equal amounts appears _____________. | white |
| A light source containing balanced quantities of ____________________ light can provide excellent color appearance even if this light source is deficient in other colors of the spectrum. | red, blue and green |
| Color temperature fails to indicate anything about how a given light source will ______________________ colors. | render |
| Color temperature fails to indicate anything about how a given light source will _______________ colors. | render |
| CRI describes the ______________________of the light on a scale of 0 to 100, with 0 being poor color rendering and 100 providing perfect color rendering. | QUALITY |
| ________________________ assesses the impact of different light sources on the perceived color of objects and surfaces | Color rendering index (CRI) |
| CRI is an average of how many different colors? | 8 |
| ___________________________ is the most common way to express the energy efficiency of a light source, and it is expressed as a ratio of the number of lumens a lamp produces to each watt of power it consumes. | efficacy (lumens per watt) |
| Natural light is defined as having a CRI of ___________________. | 100 |
| The track of the temperatures increase is called the __________________. | black body curve |
| _________________________ is the practice of using windows, skylights and other forms of fenestration to bring light into the interiors of buildings. | Daylighting |
| what are the three secondary colors? | yellow, cyan, magenta |
| Heated metal begins a red glow, then yellow, white, and eventually turns blue. The track of this temperature increase is called the "_________________________." | black body curve |
| Efficacy is the _____________________of a light source and is measured in lumens per watt (lm/W). Select one: | quality |
| Air pollution, seasons, viewing angle and weather all effect the _________________________ of daylight. | color temperature |
| _______________________ is the practice of using windows, skylights and other forms of fenestration to bring light into the interiors of buildings. | Daylighting |
| What 6 activities need to be considered in the design of a daylighting system? | Siting the building, massing the building, choosing fenestrations, shading the facade and fenestrations, adding appropriate shading devices, designing electric lighting controls. |
| Windows, skylights, and other forms of _____________________ are used to bring daylight into the interiors of buildings. | fenestrations |
| At least ____________________________times as much air conditioning is needed to cool the heating effect of the most efficient electric light producing the same lighting level as daylight. | 2.5 |
| To harvest the energy-saving benefit of daylighting, electric lights must be ___________________________. | turned off or dimmed |
| What are the major drawbacks of using incandescent and halogen lamps? | Inefficiency and short life |
| Induction lamps are types of ____________________ lamps that use radio waves, rather than electric arcs to cause the gas in the lamps to give off UV energy. | Induction |
| because induction lamps have no electrodes the lamps are rated to last about ______ to _________ times as long as regular florescentl | 5 to 10 |
| A luminaire is a device that includes a lampholder and the means of ___________________ and support for that device | electrification |
| Direct luminaires emit light _____________________. These include most types of recessed lighting, including downlights, troffers, and surface-mounted luminaires. | downward |
| indirect luminaires emit light __________________________, in turn bouncing light from the ceiling into a space. These include many styles of supsended luminaires, sconces, and some portable lamps. | upward |
| A luminaire is any device that includes a(n) ____________________and the means of electrification and support for that device | lampholder |
| Recessed downlights are often called ____________________ or ________________. | cans or high hats |
| What type of luminaires are usually selected to convey a sense of drama to the space? | direct luminaires |
| ________________ tend to create a comfortable, low-contrast soft light that psychologically enlarges space. | Indirect luminaires |
| _______________________________ fixtures allow light to focus on art, signage, and other interior surfaces and features. | adjustable accents |
| Because of their purpose, adjustable accent fixtures are designed around _____________________ lamps, such as halogen, metal halide, and LED. | point source |
| ______________________________ fixtures allow light to focus on art, signage, and other interior surfaces and features | adjustable accent |
| ____________________ fixtures can be used where the flexibility of a track is not required but the _____________________ of a track fixture is needed or the architectural conditions do not allow for a recessed fixture. | Monopoint/adjustability |
| _______________________ fixtures appear as downlights but internally permit horizontal rotation of the lamps light beam. | recessed accent |
| ___________________________ is used to create an intimate mood; however, now it is frequently being used to save energy. | dimming |
| Automatic ________________ controls feature photoelectric sensors that turn lights off or dim them when thee is sufficient daylight. | Daylighting |
Created by:
Shawnt321