Black Body Color Temperature Scale Quiz
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Questions and Answers

Which of the following characteristics defines a particular coloration as mentioned in the text?

  • Transparency
  • Saturation (correct)
  • Luminance
  • Brightness
  • What is brilliance referred to as in the MUNSELL Color System?

  • Chroma
  • Translucency
  • Value (correct)
  • Luminance
  • Which colors have 100 percent purity and therefore maximum chroma?

  • Spectral colors (correct)
  • Primary colors
  • Secondary colors
  • Complementary colors
  • What does the brilliance (value) of a pigment or coloration relate to?

    <p>Its reflectance to white light</p> Signup and view all the answers

    What is chroma or saturation thought of as in relation to color?

    <p>The difference from gray</p> Signup and view all the answers

    In what way do we create color by mixing pigments according to the text's information?

    <p>Subtractive process</p> Signup and view all the answers

    What is the purpose of developing a black body color temperature scale?

    <p>To compare the color of a light source to the scale</p> Signup and view all the answers

    How is temperature measured in the context of light sources?

    <p>In degrees Kelvin</p> Signup and view all the answers

    What does the color temperature of a light source indicate?

    <p>The color of the light produced</p> Signup and view all the answers

    How does selective absorption affect the color of light reflected or transmitted from a surface?

    <p>It alters the color composition of the reflected/transmitted light</p> Signup and view all the answers

    What happens when white light passes through a piece of red glass?

    <p>It emerges as reddish light</p> Signup and view all the answers

    When should transmission factors be used according to the text?

    <p>For materials displaying non-selective absorption</p> Signup and view all the answers

    What is the term for the unit of luminous intensity?

    <p>Candela</p> Signup and view all the answers

    In the context of color constancy, what illuminant color is considered desirable at high levels?

    <p>Cool</p> Signup and view all the answers

    What is the unit used to measure density of luminous flux?

    <p>Footcandle</p> Signup and view all the answers

    Which colors are generally associated with 'advancing' characteristics?

    <p>Red and Yellow</p> Signup and view all the answers

    What unit is used to measure the brightness or luminance of a surface?

    <p>Footlambert</p> Signup and view all the answers

    Which color illumination is desirable at low levels according to the text?

    <p>Warm</p> Signup and view all the answers

    What is the main concern with reflected glare?

    <p>Loss of contrast due to reflection of the light source</p> Signup and view all the answers

    In what scenario is reducing visual impairment due to reflected glare most effective?

    <p>When a single luminaire is involved and viewer placement is adjustable</p> Signup and view all the answers

    What is an undesirable feature according to the text in relation to contrast?

    <p>Contrast in the field of view</p> Signup and view all the answers

    What is the primary cause of reflected glare?

    <p>Bright objects within the field of vision</p> Signup and view all the answers

    How can visual impairment due to reflected glare be most effectively reduced?

    <p>Avoiding reflections by adjusting the viewer's placement</p> Signup and view all the answers

    What factor contributes to the marked difference between proper reflectances and excessive brightness ratios in an installation?

    <p>Low surroundings reflectances causing excessive brightness ratios</p> Signup and view all the answers

    What is the relationship between footlamberts and lumens per area?

    <p>Directly proportional</p> Signup and view all the answers

    How is luminous intensity (candlepower) computed?

    <p>Averaging candlepowers in all directions from an ideal point source</p> Signup and view all the answers

    What do Candlepower Distribution Curves show?

    <p>Candlepower figures at various angles</p> Signup and view all the answers

    In making Candlepower Distribution Curves of a nonsymmetrical source, how many planes are typically chosen?

    <p>3 planes</p> Signup and view all the answers

    What is the purpose of plotting resultant candlepower figures at various angles on polar coordinate axes?

    <p>To obtain a Candlepower Distribution Curve</p> Signup and view all the answers

    Why is it important to know the reflection of a given surface?

    <p>To easily compute brightnesses</p> Signup and view all the answers

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