Discussion
Consider the following statements about building design.
1. External shading is more effective than internal blinds 2. Thermal mass suits a climate with a large diurnal swing 3. Evaporative cooling suits a hot humid climate
Answer: B
Correct answer: 1 and 2 only are correct
Statements 1 and 2 are correct: shading outside the glass stops the radiation before it enters, while an internal blind absorbs it inside the room. And thermal mass works by absorbing heat by day and releasing it to cool night air, which requires a large diurnal swing. Statement 3 has the climate wrong - evaporative cooling needs dry air to evaporate into, so it suits hot arid regions and fails in humid ones.
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