Thermal Shock Resistance is defined as which of the following?

• A. The capacity to withstand large fluctuations in temperature rapidly
• B. The resistance to chemical corrosion
• C. The ability to conduct heat
• D. The ability to withstand mechanical shocks

Answer: (A)

Thermal shock resistance is the ability of a material to endure rapid temperature changes without cracking or failing due to the internal stresses that arise from uneven expansion or contraction. When temperature shifts happen quickly, different parts of a material may heat or cool at different rates, creating thermal stresses. A material with high thermal shock resistance can withstand those stresses and maintain integrity after sudden heating or cooling.

This definition differs from corrosion resistance (surface chemical stability), thermal conductivity (how well a material conducts heat), and mechanical shock resistance (protection against impacts), which are about other properties and not the stress from rapid temperature changes.