Daylighting Practice in Architecture
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Questions and Answers

What is the color temperature of noontime sunlight?

  • 4000 K
  • 7000 K
  • 5000 K (correct)
  • 2000 K

Why does daylight render color naturally?

  • Due to its high color temperature
  • Because it lacks the visible spectrum
  • Due to its limited range of wavelengths
  • Possesses all the wavelengths of the visible spectrum (correct)

How does tinted glass affect the spectral quality of daylight?

  • Does not have any effect
  • Increases the color temperature
  • Alters the spectral quality (correct)
  • Enhances all wavelengths uniformly

Which type of lighting has a warmer color temperature, warm fluorescent or cool fluorescent?

<p>Warm fluorescent (C)</p> Signup and view all the answers

How does the color quality of daylight coming through a window get influenced?

<p>By surfaces outside the window (C)</p> Signup and view all the answers

What is the color temperature of north sky light?

<p>&gt;10,000 K (C)</p> Signup and view all the answers

How can daylighting be aesthetically affected by surfaces outside a window?

<p>By having bright-colored surfaces outside (A)</p> Signup and view all the answers

What can affect the color quality of daylight within an interior space?

<p><em>The paint colors on reflecting surfaces</em> (C)</p> Signup and view all the answers

What is the primary purpose of daylighting in architectural design?

<p>To maximize visual comfort (B)</p> Signup and view all the answers

How are energy savings achieved from daylighting?

<p>By passive solar heating or cooling (B)</p> Signup and view all the answers

What is a common way to achieve electric lighting energy savings through daylighting?

<p>Integrating a photocontrol system (B)</p> Signup and view all the answers

Why are buildings designed differently based on the local climate in terms of daylighting?

<p>To account for luminance of the sky (C)</p> Signup and view all the answers

In which regions are houses designed with minimal windows on the polar side?

<p>Regions north of the Tropic of Cancer (D)</p> Signup and view all the answers

What is the role of reflective surfaces in daylighting?

<p>To provide internal illumination (B)</p> Signup and view all the answers

Why is daylighting important for reducing energy use in buildings?

<p>To enhance productivity (A)</p> Signup and view all the answers

What effect does a photocontrol system have on electric lighting use?

<p>Diminishes electric lighting use (D)</p> Signup and view all the answers

What is a common second means of egress used in bedrooms to comply with building codes?

<p>R-13 foam-filled solid door (D)</p> Signup and view all the answers

How can east/west glass doors and windows be effectively shaded to reduce solar gain?

<p>Fully shaded top-to-bottom (A)</p> Signup and view all the answers

What is the main benefit of using Translucent Insulation Aerogel in a room?

<p>Excellent insulating properties with limited light transmission (A)</p> Signup and view all the answers

Why might a designer choose to use an R-13 foam-filled solid exterior door instead of a west-facing window?

<p>Better summer thermal performance (D)</p> Signup and view all the answers

Which material has the lowest density of any solid material mentioned in the text?

<p>Translucent Insulation Aerogel (C)</p> Signup and view all the answers

What feature of a translucent wall made with Aerogel and fiber-reinforced plastic allows light to pass through?

<p>Translucent nature (D)</p> Signup and view all the answers

How is transparent insulation used effectively to provide natural daylight?

<p>With minimal heat transfer through vertical walls or sawtooth roofs (A)</p> Signup and view all the answers

What can be useful additions to a building to reduce heat transfer and improve daylighting, as suggested in the text?

<p>Adding interior shading or external shutters (B)</p> Signup and view all the answers

What is the purpose of glare control for equator-facing glass in rooms with a low winter sun?

<p>To reduce the heat gain from the sun (D)</p> Signup and view all the answers

What material is described as a 'Lambertian Diffuser' in daylighting?

<p>Clear glass windows (B)</p> Signup and view all the answers

Why are skylights considered a better choice than windows for daylighting?

<p>Skylights are more cost-effective (D)</p> Signup and view all the answers

What factor affects the thermal performance of skylights, particularly in cool climates?

<p>The color of the skylight (A)</p> Signup and view all the answers

What percentage of floor area is usually recommended as the optimum number of skylights for daylighting?

<p>2-4% (B)</p> Signup and view all the answers

Why is white acrylic considered advantageous for skylights?

<p>It absorbs most of the transmitted light (A)</p> Signup and view all the answers

How does stratification impact the thermal performance of skylights?

<p>It reduces heat loss in cool climates (D)</p> Signup and view all the answers

What effect can changes made to the building envelope to deliver daylight to interior spaces have on a building's heating and cooling loads?

<p>Minimize both winter heat loss and summer heat gain (D)</p> Signup and view all the answers

What should be avoided in daylighting to prevent excessive heat gain?

<p>Overlighting (A)</p> Signup and view all the answers

Why must daylight be efficiently distributed within a building?

<p>To provide illuminance at desired levels (C)</p> Signup and view all the answers

What role does maximizing daylight transmittance play in energy-efficient lighting design?

<p>Minimizes both winter heat loss and summer heat gain (B)</p> Signup and view all the answers

How can direct solar gain during cooling months be minimized?

<p>Using overhangs and exterior devices (B)</p> Signup and view all the answers

Which factor makes daylight generally preferred over electric light sources?

<p>Excellent color rendering due to spectral composition (C)</p> Signup and view all the answers

What is a potential consequence of overlighting in a building?

<p>Excessive heat gain (D)</p> Signup and view all the answers

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