Residual stress is stress remaining in a wax as a result of manipulation during heating, cooling, bending, carving, or other manipulation. Manipulation of wax puts molecules of the wax into positions that they like and can change because of their solid state.

Question

Quizplus · Accepted Answer

Only statement 1 is correct because residual stress is indeed stress that remains in a wax due to manipulation. However, statement 2 is incorrect because molecules in a solid state cannot change position very easily, which means that their positions cannot change in response to manipulation of the wax. The stress that remains is simply due to the fact that some areas of the wax have been compressed or stretched during the manipulation, leading to differences in density and volume that result in residual stress.

Residual Stress Is Stress Remaining in a Wax as a Result