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3.1 PLTW CEA Key Terms Exam Questions & Answers 100% Verified!
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3.1 PLTW CEA Key Terms Exam Questions & Answers 100% Verifie Ballast - ANSWERA heavy material installed over a roof membrane to prevent wind uplift and shield the membrane from sunlight Beam - ANSWERA structural member, usually horizontal, that carries a load that is applied transverse to its l...
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