Expansion

Question 1

Define the term coefficient of linear expansion.

Answer 1

The coefficient of linear expansion, often denoted as “α” (alpha), is a physical constant that quantifies how a material’s length changes in response to a change in temperature.

Question 2

State a device used to counter the effect of expansion in long pipes due to temperature
change.

Answer 2

An expansion joint is a flexible component installed within a pipeline system to absorb the expansion and contraction of the pipe caused by changes in temperature. It allows the pipe to expand and contract without putting excessive stress on the pipeline, preventing issues like pipe buckling, damage, or leaks.