Question

α means ____

(a) Co-efficient of thermal expansion

(b) Co-efficient of linear expansion

(c) Thermal expansion

(d) Thermal effect

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This is a very interesting question from One Dimensional Problems topic in chapter One Dimensional Problems of Finite Element Method

Answer 1

Correct choice is (a) Co-efficient of thermal expansion

The explanation: The co-efficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically, it measures the fractional change in size per degree change in temperature at constant pressure. It is denoted by symbol α.