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Meisterprüfung Spengler Practice Questions - Meisterprüfung Für Das Handwerk Spengler (Austrian Master Craftsman Examination In Sheet Metal & Tinsmithing) Exam

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A master tinsmith is planning a 12.0-meter-long standing seam tray (Doppelstehfalzschar) made of copper (Cu-DHP). If the design temperature difference (Delta T) between winter frost (-10 °C) and summer solar radiation (+70 °C) is 80 K, and the linear thermal expansion coefficient for copper is alpha = 0.017 mm/(m·K), what is the calculated total longitudinal thermal expansion (Delta L)?
Correct Answer:
16.32 mm

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