PLTW CEA UPDATED Exam Questions and CORRECT Answers
Compression Strength - ANS The maximum compressive stress a material can withstand without failure. Concrete - ANS A solid, hard material produced by combining Portland cement, aggregates, sand, water and sometimes additional mixtures. Design Temperature Differential - ANS The difference between the indoor temperature in winter and the outdoor design temperature in winter. The design temperature differential or design range is used in calculating the space heating requirements of a dwelling unit under the engineering-based methodology.
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