Question: A mechanical engineer is designing components for a precision instrument and needs materials with minimal thermal expansion. Which of the following properties of engineering materials

A mechanical engineer is designing components for a precision instrument and needs materials with minimal thermal expansion. Which of the following properties of engineering materials is crucial for assessing thermal stability and can be easily determined in the field or laboratory?

(a) Coefficient of friction

(b) Thermal expansion coefficient

(d) All of these.

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