- 7 Which Of The Following Statements Is True A Stress Concentrations Occur Where There Is A Change In Cross Section 1 (497.63 KiB) Viewed 34 times
7. Which of the following statements is true? (A) Stress concentrations occur where there is a change in cross-section. (B) Internal material imperfections can cause stress concentrations. (C) For static loading it is customary to ignore stress concentrations. (D) Stress concentrations may increase stress in all principal directions. (E) All the statements are true. Answer: Which of the following statements is true? (A) Residual stresses can be determined easily. (B) Residual stresses remain in a part as long as heat or external loading does not remove them by yielding, (C) Residual stresses are always disadvantageous. (D) Residual stresses need to be considered only in brittle materials. All the statements are false.