Question

which of the following is not part of the phases of the fastening process?
rundown phase
friction phase
plastic phase
elastic phase

Explanation:

In the fastening process, common phases include rundown phase (where the fastener is initially tightened), plastic phase (when the material starts to deform plastically), and elastic phase (where the material deforms elastically before reaching the plastic - stage). Friction is a factor during the process but not a distinct phase in the traditional sense of fastening process phases.

Answer:

B. Friction Phase