Castle
10 of 15 from Photo quiz: Gear for green buildings
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The answer to the previous question is that it's a picture of the bottom of a doorway. The blue and purple light along the middle of the image tell an energy auditor that there is a lot of air leakage going on there and that some weatherstripping is in order.
Next question: What is this?
A. The entrance to a Smurfs castle, or
B. A passageway built from insulating foam.
Answer and new question on next page. (Good luck on this next one.)
March 16, 2009 4:00 AM PDT
Photo by: Martin LaMonica/CNET
