HVAC · Practice-Exam-2 · Problem 42PDFSolution in PDF ↓
HVAC · Practice-Exam-2 · Problem 42
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Problem: An exterior wall is constructed from 5-8ths inch plaster board with the R value given, 3.5 inch bat insulation with the R value given, and 3.5 inch br...
Key step: An exterior wall is constructed from 5-8ths inch plaster board with the R value given, 3.5 inch bat insulation with the R value given, and 3.5 inch br
Watch out: If the denominator was B2 and 3B2 foot or if the numerator was just our foot, the degree of F and not foot squared, then these would not be complete.
Result: So we solve for t x, t x equals t a minus delta t, which equals 72 minus 47.6, which equals 24.40 degrees.
✅ Answer: A
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