What can become deformed by heat radiation to the point that it begins to leak?

What can become deformed by heat radiation to the point that it begins to leak?

• A. All
• B. Wood
• C. Steel
• D. Plastic

Answer: (A)

When heat radiation raises a material’s temperature, it causes the material to change shape or soften. This deformation can break seals or containers, letting contents leak out. Wood can warp and crack when heated; plastic can soften or melt and lose its form; steel expands and can warp or lose structural integrity under strong heat. Because any of these materials can deform enough to leak given enough heat, the best choice includes all of them. So, the idea is that heat can affect any material, depending on exposure, making leakage possible in each case.

When heat radiation raises a material’s temperature, it causes the material to change shape or soften. This deformation can break seals or containers, letting contents leak out. Wood can warp and crack when heated; plastic can soften or melt and lose its form; steel expands and can warp or lose structural integrity under strong heat. Because any of these materials can deform enough to leak given enough heat, the best choice includes all of them. So, the idea is that heat can affect any material, depending on exposure, making leakage possible in each case.