According to the passive solar excerpt, how do calculated roof overhangs manage seasonal sunlight?
Answer and explanation
Correct answer: B. By blocking high summer sun angles while allowing low winter sun to enter
- Step 1: The author specifies: 'engineering calculated roof overhangs that obstruct high summer sun angles while permitting low-angle winter sunlight to penetrate interior living spaces.'
- Step 2: This geometric differentiation relies solely on the Sun's changing seasonal altitude.
Answer
By blocking high summer sun angles while allowing low winter sun to enter.
Why not the others: 'By collapsing automatically during periods of high atmospheric precipitation' describes active deployable canopies; 'By rotating 180 degrees using electric servomotors' contradicts passive, non-mechanical principles; 'By converting winter sunlight into artificial ultraviolet radiation' is physically impossible.
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