3rd Class Power Engineering 3A1 Practice Exam 2025 – Complete Prep Guide

Question: 1 / 400

Is it true that each material has a coefficient value applied to expansion calculations?

True

Each material indeed has a specific coefficient of thermal expansion that is applied in calculations related to expansion and contraction due to temperature changes. This value varies from one material to another, reflecting how much a material expands or contracts with changes in temperature.

For example, metals generally have higher coefficients of thermal expansion compared to materials like wood or plastics. When engineers design systems that involve temperature fluctuations, such as piping or structural components, they need to account for this coefficient to ensure that the integrity and functionality of the structure or system are maintained. Neglecting this aspect could lead to issues such as warping, cracking, or failure of components due to stresses induced by thermal expansion or contraction. Therefore, knowing the coefficient of thermal expansion for each material is critical in engineering calculations and designs.

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False

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