The type of stress developed in a metallic bar on subjecting it to a change in temperature without allowing it to be deformed is ______________ stress?
Correct answer: A. Thermal
- A. Thermal
- B. Tensile
- C. Compressive
- D. Shear
Explanation
When a bar is prevented from expanding or contracting freely, temperature change creates thermal stress. Depending on heating or cooling, this stress may be tensile or compressive, but its type by cause is thermal.
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